10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-K

(Mark One)

☒    ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Fiscal Year Ended December 31, 2021

or

☐    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _____ to _____

Commission file number 001-37848

KINSALE CAPITAL GROUP, INC.
(Exact name of registrant as specified in its charter)
Delaware	98-0664337
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification Number)

2035 Maywill Street, Suite 100
Richmond, Virginia 23230

(Address of principal executive offices, including zip code)

(804) 289-1300

(Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.01 per share	KNSL	New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☒ No ☐

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Act. Yes ☐ No ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No  ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes  ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company”  in Rule 12b-2 of the Securities Exchange Act of 1934.

Large Accelerated Filer ☒ Accelerated filer ☐ Non-accelerated filer ☐ Smaller reporting company ☐ Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

The aggregate market value of the shares of the registrant's common stock held by non-affiliates as of June 30, 2021 was approximately $3,540,691,287.

The number of the registrant’s common shares outstanding was 22,840,083 as of February 17, 2022.

DOCUMENTS INCORPORATED BY REFERENCE:

Portions of the registrant’s definitive proxy statement relating to its 2022 annual meeting of stockholders (the "2022 Proxy Statement") are incorporated by reference into Part III of this Annual Report on Form 10-K. The 2022 Proxy Statement will be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K.

Table of Contents

Table of Contents

		Page
PART I
Item 1.	Business	1
Item 1A.	Risk Factors	21
Item 1B.	Unresolved Staff Comments	35
Item 2.	Properties	35
Item 3.	Legal Proceedings	35
Item 4.	Mine Safety Disclosures	35
PART II
Item 5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	36
Item 6.	Reserved	38
Item 7.	Management's Discussion and Analysis of Financial Condition and Results of Operations	38
Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	61
Item 8.	Financial Statements and Supplementary Data	63
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	105
Item 9A.	Controls and Procedures	105
Item 9B.	Other Information	105
Item 9C.	Disclosure Regarding Foreign Jurisdictions that Prevent Inspections	105
PART III
Item 10.	Directors, Executive Officers and Corporate Governance	106
Item 11.	Executive Compensation	106
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	106
Item 13.	Certain Relationships and Related Transactions, and Director Independence	106
Item 14.	Principal Accounting Fees and Services	106
PART IV
Item 15.	Exhibits and Financial Statement Schedules	107
Item 16.	Form 10-K Summary	107

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Unless the context requires otherwise, the words "Kinsale," the "Company," "we," "us" and "our" in this Annual Report on Form 10-K refer to Kinsale Capital Group, Inc. and its subsidiaries.

Forward-Looking Statements

This Annual Report on Form 10-K contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include any statement that does not directly relate to historical or current fact. These statements may discuss, among others, our future financial performance, our business prospects and strategy, our anticipated financial position, liquidity and capital, dividends and general market and industry conditions. You can identify forward-looking statements by words such as "anticipates," "estimates," "expects," "intends," "plans," "predicts," "projects," "believes," "seeks," "outlook," "future," "will," "would," "should," "could," "may," "can have" and similar terms. Forward-looking statements are based on management’s current expectations and assumptions about future events, which are subject to uncertainties, risks and changes in circumstances that are difficult to predict. These statements are only predictions and are not guarantees of future performance. Actual results may differ materially from those contemplated by a forward-looking statement. Factors that may cause such differences include, without limitation:

•the possibility that our loss reserves may be inadequate to cover our actual losses, which could have a material adverse effect on our financial condition, results of operations and cash flows;

•the inherent uncertainty of models resulting in actual losses that are materially different than our estimates;

•the failure of any of the loss limitations or exclusions we employ, or change in other claims or coverage issues, having a material adverse effect on our financial condition or results of operations;

•the inability to obtain reinsurance coverage at reasonable prices and on terms that adequately protect us;

•the possibility that severe weather conditions and catastrophes, including due to climate change, pandemics and similar events adversely affecting our business, results of operations and financial condition;

•adverse economic factors, including recession, inflation, periods of high unemployment or lower economic activity resulting in the sale of fewer policies than expected or an increase in frequency or severity of claims and premium defaults or both, affecting our growth and profitability;

•a decline in our financial strength rating adversely affecting the amount of business we write;

•the potential loss of one or more key executives or an inability to attract and retain qualified personnel adversely affecting our results of operations;

•our reliance on a select group of brokers;

•the changing market conditions of our excess and surplus lines ("E&S") insurance operations, as well as the cyclical nature of our business, affecting our financial performance;

•our employees taking excessive risks;

•the intense competition for business in our industry;

•the effects of litigation having an adverse effect on our business;

•the performance of our investment portfolio adversely affecting our financial results;

•the ability to pay dividends being dependent on our ability to obtain cash dividends or other permitted payments from our insurance subsidiary;

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•being forced to sell investments to meet our liquidity requirements;

•extensive regulation adversely affecting our ability to achieve our business objectives or the failure to comply with these regulations adversely affecting our financial condition and results of operations;

•the other risks and uncertainties discussed in Part I, Item 1A of this Annual Report on Form 10-K.

Forward-looking statements speak only as of the date on which they are made. Except as expressly required under federal securities laws or the rules and regulations of the Securities and Exchange Commission ("SEC"), we do not assume any obligation to update or revise any forward-looking statement, whether as a result of new information, future events or otherwise. You should not place undue reliance on forward-looking statements. All forward-looking statements attributable to us are expressly qualified by these cautionary statements.

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PART I

Item 1. Business

Kinsale is a property and casualty insurance company that focuses exclusively on the excess and surplus lines ("E&S") market in the U.S., where we can use our underwriting expertise to write coverages for hard-to-place small business risks and personal lines risks. We market and sell these insurance products in all 50 states, the District of Columbia, the Commonwealth of Puerto Rico and the U.S. Virgin Islands primarily through a network of independent insurance brokers. Our experienced and cohesive management team has an average of over 25 years of experience in the E&S market. Many of our employees and members of our management team have also worked together for decades at other E&S insurance companies.

Our goal is to deliver long-term value for our stockholders by growing our business and generating attractive returns. We seek to accomplish this by generating consistent and attractive underwriting profits while managing our capital prudently. Using our proprietary technology platform and leveraging the expertise of our highly experienced employees in our daily operations, we have built a company that is entrepreneurial and highly efficient. We believe our systems and technology are at the digital forefront of the insurance industry and allow us to quickly collect and analyze data, thereby improving our ability to manage our business and reduce our response times for our customers. We believe that we have differentiated ourselves from our competitors by effectively leveraging technology, vigilantly controlling expenses and maintaining control over our underwriting and claims operations.

We have significantly grown our business and have generated attractive returns. During 2021, our gross written premiums increased by 38.3%, to $764.4 million for the year ended December 31, 2021. Our return on equity and combined ratios were 23.9% and 77.1%, respectively, for the year ended December 31, 2021. Our operating return on equity, a non-GAAP financial measure, was 20.8% for the year ended December 31, 2021. We believe that we are well positioned to continue to capitalize on attractive opportunities in our target market and to prudently grow our business. See "Management’s Discussion and Analysis of Financial Condition and Results of Operations — Reconciliation of Non-GAAP Financial Measures" for a reconciliation of net income to net operating earnings and calculations using net operating earnings (e.g., operating return on equity).

Our Products

We write a broad array of insurance coverages for risks that are unique or hard to place in the standard insurance market. Typical E&S risks include newly established companies or industries, high-risk operations, insureds in litigious venues or companies with poor loss histories. We target classes of business where our underwriters have extensive experience allowing us to compete effectively and earn attractive returns. Our underwriters specialize in individual lines of business which allow them to develop in-depth knowledge and experience of the risks they underwrite. Our core client focus is small to medium-sized accounts, which we believe tend to be subject to less competition and have better pricing. The average premium per policy written by us in 2021 was $10,400. Excluding our personal lines insurance, which has a relatively low premium per policy written, the average premium per policy written was $12,900 in 2021. We believe that our strategy, experience and expertise allow us to compete effectively in the E&S market and will enable us to generate attractive long-term stockholder value.

In 2021, the percentage breakdown of our gross written premiums was 85.1% casualty and 14.9% property. Our commercial lines offerings include small business, excess casualty, construction, commercial property, allied health, products liability, life sciences, general casualty, professional liability, management liability, energy, environmental, entertainment, health care, inland marine, public entity, and commercial insurance. We also write a small amount of homeowners insurance in the personal lines market, which in aggregate represented 3.5% of our gross written premiums in 2021 and is included within our personal insurance division.

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The following table provides a summary of gross premiums written by division for the years ended December 31, 2021, 2020 and 2019.

	Year Ended December 31,
	2021				2020				2019
	($ in thousands)
Commercial:
Small Business	$	112,142	14.7	%	$	83,289	15.1	%	$	63,181	16.2	%
Excess Casualty	109,464		14.3	%	76,715		13.9	%	51,225		13.1	%
Construction	103,540		13.6	%	87,206		15.8	%	71,035		18.2	%
Commercial Property	78,722		10.3	%	51,789		9.4	%	29,115		7.5	%
Allied Health	59,208		7.8	%	37,562		6.8	%	23,962		6.1	%
Products Liability	55,070		7.2	%	38,306		6.9	%	26,333		6.8	%
Life Sciences	41,297		5.4	%	31,027		5.6	%	17,821		4.6	%
General Casualty	36,042		4.7	%	24,591		4.4	%	20,931		5.4	%
Professional Liability	33,226		4.3	%	27,051		4.9	%	20,029		5.1	%
Management Liability	32,163		4.2	%	24,061		4.3	%	14,820		3.8	%
All other commercial lines	76,497		10.0	%	49,507		9.0	%	34,582		8.9	%
Total commercial	737,371		96.5	%	531,104		96.1	%	373,034		95.7	%
Personal insurance	27,002		3.5	%	21,710		3.9	%	16,660		4.3	%
Total gross written premiums	$	764,373	100.0	%	$	552,814	100.0	%	$	389,694	100.0	%

Our Competitive Strengths

We believe that our competitive strengths include:

Exclusive focus on the E&S market. The E&S, or non-admitted, market has historically operated at lower loss ratios and higher margins, and has grown direct premiums written more quickly than the admitted market. From 2001 to 2020, A.M. Best Company's ("A.M. Best") domestic professional surplus lines composite produced an average net loss and loss adjustment expense ratio of 69.6% and grew direct premiums written by 8.1% annually, versus 73.5% and 3.7% respectively for the property and casualty ("P&C") industry.

Underwriting expertise across a broad spectrum of hard-to-place risks. We have a broad appetite to underwrite a diverse set of risks across the E&S market. Our underwriting team is highly experienced, and individually underwrites each risk to appropriately price and structure solutions. We balance our broad risk appetite by maintaining a diversified book of smaller accounts with strong pricing and well-defined coverages. Unlike many of our competitors, we do not extend underwriting authority to brokers, agents or other third parties. For the year ended December 31, 2021, our loss and loss adjustment expense ratio was 55.7%.

Technology is a core competency. As an insurance company that was founded in 2009, we have the benefit of having built a proprietary technology platform that reflects the best practices our management team has learned from its extensive prior experience. We operate on an integrated digital platform with a data warehouse that collects an array of statistical data. Our platform provides a high degree of efficiency, accuracy and speed across all of our processes. We are able to use the data that we collect to quickly analyze trends across all functions in our business. Our customized proprietary system helps us to reduce the risk of administrative errors in our policy forms and include all of the necessary exclusions for the specified risk, and provides for the efficient and accurate handling of claims. Additionally, our systems enable us to rapidly respond to brokers, allowing our underwriters to reply to the majority of submissions within 24 hours, a significant benefit to our brokers. We believe that our technology platform will provide us with an enduring competitive advantage as it allows us to quickly respond to market opportunities, and will continue to scale as our business grows.

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Significantly lower expense ratio than our competitors. Expense management is ingrained in our business culture. We believe that our proprietary technology platform coupled with our low-cost operation allow us to process quotes, underwrite policies and operate at a lower cost than our direct competitors. In particular, our efficient platform allows us to provide a higher level of service to our brokers and to target smaller accounts which we believe are generally subject to less competition. For the year ended December 31, 2021, our expense ratio was 21.4%.

Fully integrated claims management. We believe that actively managing our claims is an important aspect of keeping losses low, while accurately setting reserves. We manage all of our claims in-house and do not delegate claims management authority to third parties. We promptly and thoroughly investigate all claims, generally through direct contact with the insured, and leverage both our systems and our underwriters to gather the relevant facts. As necessary, we employ local counsel in defense of our policy holders and independent adjusters for task assignments. When we believe claims are without merit, we vigorously contest payment. We currently average 107 open claims per claims adjuster (104 open claims per claims adjuster excluding catastrophe claims), which we believe is lower than industry average. As of December 31, 2021, our reserves for claims incurred but not reported were approximately 85.9% of our total net loss reserves. Of the total open claims as of December 31, 2021, only 41.6% were open for accident years 2019 and prior.

Entrepreneurial management team with a track record of success. Our management team is highly experienced with an average of over 25 years of relevant experience, bringing together a full suite of underwriting, claims, technology and operating skills that we believe will drive our long-term success. The majority of our management team has a proven track record of successfully building high performing specialty insurance companies. We are led by Michael Kehoe who, prior to founding Kinsale, was the president and chief executive officer of James River Insurance Company from 2002 until 2008. Prior to James River Insurance Company, Mr. Kehoe held several senior positions at Colony Insurance Company. Many of our other employees and members of our management team worked with Mr. Kehoe at James River Insurance Company and have decades of experience at other E&S insurance companies. As meaningful owners of Kinsale, we believe our management team has closely aligned interests with our stockholders.

Our Board of Directors has deep insurance and financial services industry experience. Our Board of Directors is comprised of accomplished industry veterans. Collectively, our board members bring decades of experience from their prior roles operating and working in insurance and other financial services companies.

Our Strategy

We believe that our approach to our business will allow us to achieve our goals of both growing our business and generating attractive returns. Our approach involves:

Expand our presence in the E&S market. According to A.M. Best, the total E&S market was approximately $66.1 billion of direct written premiums in 2020. Based on our 2021 gross written premiums of $764.4 million, our current market share is approximately 1.2%. We believe that our exclusive focus on the E&S market and our high levels of service, including our ability to quote, underwrite and bind insurance policies in a timely manner given our efficient systems, allow us to better serve our brokers and position us to profitably increase our market share.

Generate underwriting profits. We will continue to focus on underwriting profitability regardless of market cycles. Our strategy is to concentrate on hard-to-place risks and to maintain adequate rate levels for the risks that we underwrite. We maintain control over our underwriting process to ensure consistent quality of work. We underwrite each account individually and never delegate authority to any outside agents or brokers.

Maintain a contrarian risk appetite. Our flexibility as an E&S insurer enables us to write business at attractive returns while offering competitive policies to our brokers and insureds. We believe we distinguish ourselves in the market with our contrarian risk appetite and our willingness to offer terms on risks requiring more extensive underwriting that some of our competitors may decline to consider. Such accounts frequently offer us a better return than those preferred by our competitors due to reduced competition.

Leverage investment in technology to drive efficiencies. We use a proprietary technology platform to drive a high level of efficiency, accuracy and speed in our underwriting and quoting process. We have organized our workflows, designed our systems and aligned our staff to provide superior service levels to brokers while achieving a level of efficiency that we believe provides us with a competitive advantage and helps contribute to our low expense ratio. We believe that

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automation also reduces human error in our underwriting, policy processing, accounting, collections, and claims adjusting processes. Additionally, we are able to track quotes, monitor historical loss experience and reserve development, and measure other relevant metrics at a granular level of detail. We believe that our technology is scalable and will allow us to maintain a low expense ratio as we continue to organically grow our business.

Maintain a strong balance sheet. In order to maintain the confidence of policyholders, brokers, reinsurers, investors, regulators and rating agencies, we seek to establish and maintain a conservative balance sheet. We have a robust process for setting our loss reserves and regularly reviewing our estimates. In addition, we maintain a conservative investment portfolio. Our strong balance sheet allows us to maintain the confidence of our investors and other constituencies, and thereby position ourselves to better achieve our goals.

Our Structure

The chart below displays our corporate structure:

		Kinsale Capital Group, Inc. (Delaware corporation)
Kinsale Management, Inc. (Delaware corporation; management services company)	Kinsale Insurance Company (Arkansas corporation; stock insurance company)		Aspera Insurance Services, Inc. (Virginia corporation; insurance broker)	Kinsale Real Estate, Inc. (Delaware corporation; real estate holding company)
				2001 Maywill, LLC (Delaware limited liability company; real estate entity)

Kinsale Capital Group, Inc., a Delaware domiciled insurance holding company, was formed on June 3, 2009 for the purpose of acquiring and managing insurance entities. Prior to September 5, 2014, the Company was a Bermuda registered holding company, formerly known as Kinsale Capital Group, Ltd. ("KCGL"). Effective September 5, 2014, KCGL was re-domesticated from Bermuda to Delaware. A wholly-owned subsidiary of KCGL, Kinsale Capital Group, Inc., which was formed on June 4, 2009 as a U.S. holding company, was immediately merged into the re-domesticated entity and Kinsale Capital Group, Ltd. changed its name to Kinsale Capital Group, Inc.

On June 4, 2009, we incorporated Kinsale Management, Inc. ("Kinsale Management") as a wholly-owned subsidiary domiciled in Delaware, in order to provide management services to all of our U.S.-based subsidiaries.

On February 5, 2010, we acquired American Healthcare Specialty Insurance Company and changed its name to Kinsale Insurance Company ("Kinsale Insurance"). Kinsale Insurance is an Arkansas-domiciled insurance company and is eligible to operate on an excess and surplus lines basis in 50 states, the District of Columbia, the Commonwealth of Puerto Rico and the U.S. Virgin Islands.

On August 21, 2013, we established Aspera Insurance Services, Inc. ("Aspera"), an insurance broker. Aspera is domiciled in Virginia and is authorized to conduct business in Virginia, Alabama, Arizona, California, Colorado, Connecticut, Delaware, Florida, Georgia, Louisiana, Maine, Maryland, Massachusetts, Michigan, Mississippi, Nevada, New Hampshire, New Jersey, New York, North Carolina, Oregon, Pennsylvania, Rhode Island, South Carolina, Texas, Vermont and Washington.

On December 3, 2018, we incorporated Kinsale Real Estate, Inc. ("Kinsale Real Estate"), as a wholly-owned subsidiary domiciled in Delaware, in order to acquire and hold real estate.

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On December 3, 2018, we incorporated 2001 Maywill, LLC, as a wholly-owned subsidiary of Kinsale Real Estate, domiciled in Delaware, in order to hold our corporate headquarters.

Marketing and Distribution

We market our products through a broad group of independent insurance brokers that we believe can consistently produce reasonable volumes of quality business for us. We also sell policies through our wholly-owned broker, Aspera. Aspera distributes 4.0% of Kinsale’s premiums, primarily personal lines, through independent brokers. Kinsale does not grant its brokers any underwriting or claims authority.

We select our brokers based on management's review of the experience, knowledge and business plan of each broker. While many of our brokers have more than one office, we evaluate each office as if it were a separate brokerage and may appoint some but not all offices owned by a broker for specialized lines of business. We seek brokers with business plans that are consistent with our strategy and underwriting objectives. Brokers must be able to demonstrate an ability to competently produce both the quality and quantity of business that we seek. For our more specialized divisions, we seek to appoint brokers that have a similar focus and demonstrated experience in the particular line of business. Brokers who produce unacceptably low volumes of business may be terminated. Our underwriters regularly visit with brokers in their offices in order to market to these brokers and discuss the products we offer.

For the year ended December 31, 2021, our largest brokers were RSG Specialty, LLC, which produced $137.0 million, or 17.9%, of our gross written premiums and AmWINS Brokerage, which produced $118.8 million, or 15.5% of our gross written premiums. No other broker accounted for more than 10% of our gross written premiums in the year ended December 31, 2021.

It is important to us that we maintain excellent relationships with the group of brokers who present business to us. Commissions are an important part of that relationship, but brokers will also typically consider the ultimate price to the insured, and the service and expertise offered by the carrier when determining where to place their business. In 2021, we paid an average commission to our brokers of 14.6% of gross written premiums. We believe this is slightly lower than the average commission paid by our competitors. We believe that our specialization in hard-to-place risks, combined with our high degree of service, including our rapid speed-to-quote, permits us to manage our commission expense as part of our overall management of the underwriting process. Additionally, we do not contract out our underwriting to program managers or general agents which typically requires a higher commission level to compensate the third party for its work on behalf of the carrier.

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We sell policies in all 50 states, the District of Columbia, the Commonwealth of Puerto Rico and the U.S. Virgin Islands. The following tables show our gross written premiums by state for the years ended December 31, 2021, 2020 and 2019.

	Year Ended December 31,
	2021		% of Total		2020		% of Total		2019		% of Total
	($ in thousands)
Gross written premiums by state:
California	$	168,694	22.1	%	$	128,448	23.3	%	$	95,889	24.6	%
Florida	118,736		15.5	%	78,412		14.2	%	48,473		12.4	%
Texas	88,679		11.6	%	63,312		11.5	%	48,829		12.5	%
New York	31,495		4.1	%	27,234		4.9	%	27,441		7.0	%
Washington	31,167		4.1	%	23,960		4.3	%	17,339		4.4	%
Colorado	26,250		3.4	%	19,600		3.5	%	11,732		3.0	%
New Jersey	22,125		2.9	%	16,823		3.0	%	11,887		3.1	%
Pennsylvania	16,518		2.2	%	11,184		2.0	%	6,867		1.8	%
Arizona	15,894		2.1	%	12,722		2.3	%	8,116		2.1	%
Georgia	14,920		1.9	%	11,014		2.0	%	6,431		1.7	%
All other states	229,895		30.1	%	160,105		29.0	%	106,690		27.4	%
	$	764,373	100.0	%	$	552,814	100.0	%	$	389,694	100.0	%

Underwriting

Our underwriting department consisted of approximately 180 employees as of December 31, 2021. We use our proprietary technology platform to drive a high level of efficiency, accuracy and speed in our underwriting and quoting process. We believe our internal business processing systems allow us to maintain a high ratio of underwriters to total employees, as we do not require a significant number of administrative personnel to facilitate our underwriting process. We also believe that our digital environment allows us to engage fewer employees in policy administration.

We are very selective in the policies we choose to bind, with approximately one in every 8 submissions bound. If our underwriters cannot reasonably expect to bind coverage at the combination of premium and coverage that meets our standards, they are encouraged to quickly move on to another prospective opportunity. For the year ended December 31, 2021, we received approximately 520,000 new business submissions, and of those submissions, we issued approximately 347,000 quotes and bound 36,000 policies for a new policy to new submission ratio of 6.9%. We are careful to establish terms that are suited to the risk and the pricing of our policies. As an E&S company, we use our freedom of rate and form assertively in order to appropriately underwrite risks that have already been rejected by licensed carriers constrained by approved forms and filed rates.

Beyond simply selecting risks, we attempt to craft policies that offer affordable protection to insureds by tailoring coverages in ways that make potential losses more predictable and reduce claims costs. For example, our "defense inside the limits" clause, which we applied to more than 99.5% of our professional liability premiums written in 2021, means that funds we expend defending an insured against a claim are counted against the total policy limit. We believe we do not have any material exposure to claims from asbestos, lead paint, silica, mold or nuclear, biological or chemical terrorism.

Claims

Our claims department consisted of approximately 50 claims professionals who had an average of 9 years of claims experience in the P&C industry as of December 31, 2021. Our Chief Claims Officer has over 30 years of litigation and claims experience in large commercial insurance claims departments. Our claims department is fully integrated with our other functional departments. We manage all of our claims in-house and do not delegate claims management authority to third parties.

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We focus on the effective management of the claims adjusting process. This process is achieved by extending low reserve and settlement authority levels to our front-line claim examiners; keeping the adjuster-to-supervisor ratios low to allow for greater supervision over the adjusting process; and monitoring the number of claims handled by each claims examiner. This method ensures that two or more members of the department participate in the decision-making process when appropriate; our claim examiners recognize and address key issues; and reserves are adjusted to the appropriate amount as necessary. We seek to manage the number of claims per claims examiner to allow our claim examiners sufficient time to review and investigate claims submitted. Moreover, prior to any scheduled mediation or trial, claims personnel conduct further peer review to ensure that issues and exposures have been adequately analyzed. In addition, our claim examiners work closely with members of the underwriting staff to keep them apprised of claim trends. Vendor management is also important, and our claim examiners work closely with our vendors to manage expenses and costs.

Information Technology

Our information technology department consisted of approximately 90 employees and contractors as of December 31, 2021. Our Chief Information Officer has over 30 years of experience in the technology field. Our information technology staff utilizes an agile methodology and cloud strategy to develop best-in-class software solutions and to attract and retain quality staff.

We have built a proprietary technology platform that reflects the best practices our management team has learned from its extensive prior experiences. Our proprietary technology platform is comprised of multiple applications and services linked together in an integrated system. Key applications and services supporting the core business were developed in-house. We designed the architecture for our information systems in a fashion that would allow us to reduce our administrative costs and quickly provide us with useful information. Our insurance company subsidiary operates in a digital environment, which eliminates the costs of printing, storing and handling thousands of documents each week. Moreover, by maintaining electronic files on each account, we have been able to facilitate clear communication among personnel responsible for handling matters related to underwriting, servicing and claims as each has access to full information regarding the account.

We use a browser-based platform approach to processing business. When a broker makes a submission, the information is transferred into our browser-based underwriting system. This eliminates costly data-entry steps in our underwriting process and permits the underwriter to focus on underwriting the account accurately and rapidly.

Since inception, we have been intent on capturing and analyzing our data and building, over time, a robust repository of information that we can use to improve our decision making. We refer to this repository as our data warehouse. The design of our data warehouse permits us to capture an array of statistical data, collected by the policy management systems at Kinsale. The data warehouse is easily searchable, collects and labels information in a consistent format and contains most of the underwriting and claims information we collect at every level. The data warehouse permits us flexibility with regard to analyzing our business by segment or in the aggregate. We believe the proprietary technology platform, which includes the data warehouse, is a competitive advantage for us.

Reserve Development

We maintain reserves for specific claims incurred and reported and for claims incurred but not reported. We continually monitor and adjust our reserves as necessary using new information on reported claims and a variety of statistical techniques. Anticipated inflation is reflected implicitly in the reserving process through analysis of cost trends and the review of historical development. We do not discount our reserves for unpaid losses and loss adjustment expenses to reflect estimated present value. However, our ultimate liability may be greater or less than current reserves and there is always the risk that reserves may prove inadequate.

See "Management’s Discussion and Analysis of Financial Condition and Results of Operations — Critical Accounting Estimates — Reserves for Unpaid Losses and Loss Adjustment Expenses" and Note 7 of the consolidated financial statements for a discussion of estimates and assumptions related to the reserves for unpaid losses and loss adjustment expenses.

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Catastrophe Risk Management

We use sophisticated computer models to analyze the risk of severe losses from natural catastrophes. We measure exposure to these losses in terms of probable maximum loss ("PML"), which is an estimate of the amount of loss we would expect to meet or exceed once in a given number of years (referred to as the return period). When managing our catastrophe exposure, we focus on the 100-year and the 250-year return periods. Our main catastrophe risk arises from hurricanes and we manage this exposure through:

•careful and disciplined underwriting,

•purchasing extensive reinsurance protection from financially strong counterparties,

•analyzing results of catastrophe modeling for our business portfolio on monthly basis, and

•limiting the concentration of property business by geographic area to reduce loss exposure from extreme events.

We mitigate catastrophe exposure by implementing certain aggregate risk management guidelines for our overall property business. For instance, these guidelines limit the exposed property values within a specified geographic radius, which in turn limits the gross and net PML. In addition to our aggregate risk management guidelines, we write policies using limits tactically in order to minimize exposure to large losses. While specific limits change over time as our risk appetite changes due to growth, the majority of our business is concentrated to property coverages with policy limits between $1.0 million and $5.0 million. Our insurance policies are also generally written for one year and repriced annually to reflect changing exposures, including changes in frequency and severity of weather-related claims. The increased frequency and severity of natural catastrophes drive increased volatility for insurers. It also causes standard insurers to push more catastrophe exposed business into the E&S market thereby increasing our business opportunity. E&S companies are better able to manage the volatility associated with catastrophe risk given their regulatory freedom of rate and form allowing for maximum flexibility in restricting coverage and charging higher rates.

Reinsurance

We enter into reinsurance contracts primarily to limit our exposure to potential large losses. Reinsurance involves an insurance company transferring ("ceding") a portion of its exposure on a risk to another insurer, the reinsurer. The reinsurer assumes the exposure in return for a portion of the premium. Our reinsurance is primarily contracted under quota-share reinsurance contracts and excess of loss treaties. In quota-share reinsurance, the reinsurer agrees to assume a specified percentage of the ceding company's losses arising out of a defined class of business in exchange for a corresponding percentage of premiums, net of a ceding commission. In excess of loss reinsurance, the reinsurer agrees to assume all or a portion of the ceding company's losses, in excess of a specified amount. Under excess of loss reinsurance, the premium payable to the reinsurer is negotiated by the parties based on their assessment of the amount of risk being ceded to the reinsurer because the reinsurer does not share proportionately in the ceding company's losses.

We renew our reinsurance treaties annually. During each renewal cycle, there are a number of factors we consider when determining our reinsurance coverage, including (1) plans to change the underlying insurance coverage we offer, (2) trends in loss activity, (3) the level of our capital and surplus, (4) changes in our risk appetite and (5) the cost and availability of reinsurance coverage.

As previously discussed, when managing our catastrophe exposure, we focus on the 100-year and the 250-year return periods. We mitigate our risk associated with natural catastrophes with respect to our property insurance business primarily by purchasing reinsurance from only highly-rated reinsurers. We utilize a personal lines quota-share treaty combined with a catastrophe treaty as an efficient and cost-effective way to manage the total loss exposure on our property coverages.

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The following is a summary of our significant reinsurance programs as of December 31, 2021:

Line of Business Covered	Company Policy Limit	Reinsurance Coverage	Company Retention
Property - per risk (1)	Up to $10.0 million per risk	$5.75 million excess of $3.0 million	$3.0 million per occurrence
Property - personal insurance (2)	N/A	50% up to $30.4 million per catastrophe	50% of all personal property losses
Property - catastrophe (3)	N/A	$60.0 million excess of $15.0 million	$15.0 million per catastrophe
Primary casualty (4)	Up to $10.0 million per occurrence	$8.0 million excess of $2.0 million	$2.0 million per occurrence
Excess casualty (5)	Up to $10.0 million per occurrence	Variable quota share	$2.0 million per occurrence except as described in note (5) below

(1)    Our property per-risk reinsurance reduces the financial impact of a large loss on a single commercial property or inland marine policy. In addition to the Company's retention, this treaty includes a deductible of the first $4.0 million of losses covered under this reinsurance treaty. This treaty also includes a reinstatement provision which requires us to pay reinstatement premiums after a loss in excess of $5 million has occurred in order to preserve coverage.

(2)    Our personal insurance quota share reinsurance reduces the financial impact of property losses on our personal insurance policies.

(3)    Our property catastrophe reinsurance reduces the financial impact of a catastrophe event involving multiple claims and policyholders. Our property catastrophe reinsurance includes a reinstatement provision which requires us to pay reinstatement premiums after a loss has occurred in order to preserve coverage. Including the reinstatement provision, the maximum aggregate loss recovery limit is $120 million and is in addition to the per-occurrence coverage provided by our treaty coverages.

(4)    Reinsurance is not applicable to any individual policy with a per-occurrence limit of $2.0 million or less.

(5)    For casualty policies with a per-occurrence limit higher than $2.0 million, the ceding percentage varies such that the retention is always $2.0 million or less. For example, for a $4.0 million limit excess policy, our retention would be 50%, whereas for a $10.0 million limit excess policy, our retention would be 20%. For policies for which we also write an underlying primary limit, the retention on the primary and excess policy combined would not exceed $2.0 million.

Reinsurance contracts do not relieve us from our obligations to policyholders. Failure of the reinsurer to honor its obligation could result in losses to us, and therefore, we established an allowance for credit risk based on historical analysis of credit losses for highly rated companies in the insurance industry. In formulating our reinsurance programs, we are selective in our choice of reinsurers and we consider numerous factors, the most important of which are the financial stability of the reinsurer, its history of responding to claims and its overall reputation. In an effort to minimize our exposure to the insolvency of our reinsurers, we review the financial condition of each reinsurer annually. In addition, we continually monitor for rating downgrades involving any of our reinsurers. At December 31, 2021, all reinsurance contracts that our insurance subsidiary was party to were with companies with A.M. Best ratings of "A" (Excellent) or better. As of December 31, 2021, we have never had a loss for uncollectible reinsurance.

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We had reinsurance recoverables on unpaid losses of $117.6 million at December 31, 2021, and recoverables on paid losses of $5.4 million at December 31, 2021. The following table provides a summary of our top ten reinsurers, based on the amount recoverable, at December 31, 2021:

Reinsurers	A.M. Best Rating		Reinsurance Recoverable
			($ in thousands)
Swiss Reinsurance America Corp.		A+	$	27,981
Munich Reinsurance America, Inc.		A+	27,411
SCOR Reinsurance Co.		A+	16,288
Allied World Reinsurance Co.		A	10,181
Odyssey America Reinsurance Corp.		A	9,492
Arch Reinsurance Co.		A+	8,302
Hannover Ruckversicherungs AG		A+	8,115
Berkley Insurance Co.		A+	4,967
General Reinsurance Corp.		A++	4,658
AXIS Reinsurance Company		A	1,204
Total for top ten reinsurers			118,599
All others			4,371
Total reinsurance recoverable			$	122,970

We did not have reinsurance recoverables greater than $1.2 million at December 31, 2021 from any individual reinsurer other than the ten listed above.

To reduce credit exposure to reinsurance recoverable balances, we obtain letters of credit from certain reinsurers that are not authorized as reinsurers under U.S. state insurance regulations. In addition, under the terms of our reinsurance contracts discussed above, we may retain funds due from reinsurers as security for those recoverable balances.

Investments

Investment income is an important component of our earnings. We collect premiums from our insureds and invest a portion of these funds until claims are paid. We seek to maximize investment returns using investment guidelines that stress prudent allocation among cash and cash equivalents, fixed-maturity securities and, to a lesser extent, equity securities.

Our cash and invested assets generally consist of fixed-maturity securities, short-term investments, cash equivalents, exchange traded funds and preferred stock (classified as equity securities on the consolidated balance sheet). Our fixed-maturity securities are classified as "available-for-sale" and are carried at fair value with unrealized gains and losses on those securities reported, net of tax, as a separate component of accumulated other comprehensive income (loss). Our equity securities are carried at fair value and changes in the fair value of these investments are recognized in net income. Fair value generally represents quoted market value prices for securities traded in the public market or prices analytically determined using bid or closing prices for securities not actively traded in the public marketplace. Short-term investments, if any, are reported at cost and include investments that are both readily convertible to known amounts of cash and have maturities of 12 months or less upon acquisition by us.

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Our cash and invested assets totaled $1.7 billion at December 31, 2021 and $1.3 billion at December 31, 2020, and is summarized as follows:

	December 31, 2021				December 31, 2020
	Fair Value		% of Portfolio		Fair Value		% of Portfolio
	($ in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	6,847	0.4	%	$	—	—	%
Obligations of states, municipalities and political subdivisions	228,045		13.5	%	230,906		17.9	%
Corporate and other securities	458,487		27.2	%	316,608		24.6	%
Asset-backed securities	301,775		17.9	%	240,661		18.7	%
Residential mortgage-backed securities	337,685		20.0	%	222,656		17.3	%
Commercial mortgage-backed securities	59,227		3.6	%	70,969		5.5	%
Total fixed maturities	1,392,066		82.6	%	1,081,800		84.0	%
Equity securities:
Exchange traded funds	123,389		7.3	%	98,050		7.6	%
Non-redeemable preferred stock	49,222		2.9	%	31,612		2.4	%
Total equity securities	172,611		10.2	%	129,662		10.0	%
Cash and cash equivalents	121,040		7.2	%	77,093		6.0	%
Total	$	1,685,717	100.0	%	$	1,288,555	100.0	%

Our policy is to invest primarily in high quality fixed-maturity securities with a primary focus on preservation of capital and a secondary focus on maximizing our risk-adjusted investment returns. Investment policy is set by the Investment Committee of the Board of Directors, subject to the limits of applicable regulations. Our investment policy is designed to comply with the regulatory investment requirements and restrictions to which our insurance subsidiary is subject. Our fixed-maturity portfolio is managed by an outside investment advisory firm, which operates under guidelines approved by our Investment Committee. Our Investment Committee meets periodically and reports to our Board of Directors.

Our investment policy also imposes strict requirements for credit quality, with a minimum average credit quality of the portfolio being rated "AA-" or higher by Standard & Poor's or the equivalent rating from another nationally recognized rating agency. Our investment policy also imposes restrictions on concentrations of securities by class and issuer. As of December 31, 2021, our fixed-maturity portfolio, including cash equivalents, had an average duration of 4.3 years and had an average rating of "AA-."

The following table sets forth the composition of our portfolio of fixed-maturity securities by rating as of December 31, 2021:

	AAA		AA		A		BBB		Below BBB		Total
	($ in thousands)
U.S. Treasury securities and obligations of U.S. government agencies	$	—	$	6,847	$	—	$	—	$	—	$	6,847
Obligations of states, municipalities and political subdivisions	15,512		147,903		60,543		4,087		—		228,045
Corporate and other securities	—		47,932		160,816		188,775		60,964		458,487
Asset-backed securities	269,987		14,722		13,188		3,878		—		301,775
Residential mortgage-backed securities	36,436		300,752		—		—		497		337,685
Commercial mortgage-backed securities	53,644		5,583		—		—		—		59,227
Total fixed maturities	$	375,579	$	523,739	$	234,547	$	196,740	$	61,461	$	1,392,066

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The fair value of our investments in fixed-maturity securities at December 31, 2021, summarized by stated maturities follows:

	December 31, 2021
	Estimated		% of
	Fair Value		Fair Value
	($ in thousands)
Due in one year or less	$	6,822	0.5	%
Due after one year through five years	189,497		13.6	%
Due after five years through ten years	232,197		16.7	%
Due after ten years	264,863		19.0	%
Asset-backed securities	301,775		21.7	%
Residential mortgage-backed securities	337,685		24.3	%
Commercial mortgage-backed securities	59,227		4.2	%
Total fixed maturities	$	1,392,066	100.0	%

Actual maturities may differ for some securities because borrowers have the right to call or prepay obligations with or without penalties. As of December 31, 2021, our fixed-maturity security portfolio contained $337.7 million (24.3%) of residential mortgage-backed securities ("RMBS"). RMBS, including collateralized mortgage obligations, are subject to prepayment risks that vary with, among other things, interest rates. During periods of declining interest rates, RMBS generally prepay faster as the underlying mortgages are prepaid and refinanced by the borrowers in order to take advantage of the lower rates. As a result, during periods of falling interest rates, proceeds from such prepayments generally must be reinvested at lower prevailing yields. In addition, RMBS that have an amortized cost that is greater than par (i.e., purchased at a premium) may incur a reduction in yield or a loss as a result of such prepayments. Conversely, during periods of rising interest rates, the rate of prepayments generally slows. RMBS that have an amortized value that is less than par (i.e., purchased at a discount) may incur a decrease in yield as a result of a slower rate of prepayments. Changes in estimated cash flows due to changes in prepayment assumptions from the original purchase assumptions are revised based on current interest rates and the economic environment. Our investment policy does not permit us to own any interest only, principal only or residual tranches of RMBS.

At December 31, 2021, our portfolio of fixed-maturity securities contained corporate bonds with a fair value of $458.5 million. A summary of these securities by industry segment is shown below as of December 31, 2021:

	December 31, 2021
Industry	Fair Value		% of Total
	($ in thousands)
Financial	$	250,826	54.7	%
Industrials and other	193,117		42.1	%
Utilities	14,544		3.2	%
Total	$	458,487	100.0	%

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Approximately 7.3% of our total cash and investments were invested in exchange traded funds ("ETFs"), which provide low-cost diversification. At December 31, 2021, our ETF balance was comprised of the following funds:

	December 31, 2021
Fund	Fair Value		% of Total
	($ in thousands)
Domestic stock market fund	$	81,384	66.0	%
Dividend yield equity fund	42,005		34.0	%
Total	$	123,389	100.0	%

Approximately 2.9% of our total cash and investments were invested in nonredeemable preferred stock. A summary of these securities by industry segment is shown below as of December 31, 2021:

	December 31, 2021
Industry	Fair Value		% of Total
	($ in thousands)
Financial	$	45,331	92.1	%
Utilities	2,993		6.1	%
Industrials and other	898		1.8	%
Total	$	49,222	100.0	%

Competition

The P&C insurance industry is highly competitive. We compete with domestic and international insurers, some of which have greater financial, marketing and management resources and experience than we do. We may also compete with new market entrants in the future. Competition is based on many factors, including the perceived market strength of the insurer, pricing and other terms and conditions, services provided, the speed of claims payment, the reputation and experience of the insurer and ratings assigned by independent rating organizations such as A.M. Best. Our insurance subsidiary, Kinsale Insurance, currently has a rating from A.M. Best of "A" (Excellent). Ratings for an insurance company are based on its ability to pay policyholder obligations and are not directed toward the protection of investors.

Today, our primary competitors in the E&S sector include Alleghany Corporation, Arch Capital Group, Ltd., Argo Group International Holdings, Ltd., James River Group Holdings, Ltd., Lloyds of London, Markel Corporation, RLI Corp. and W. R. Berkley Corporation.

Regulation

Insurance regulation

We are regulated by insurance regulatory authorities in the states in which we conduct business. State insurance laws and regulations generally are designed to protect the interests of policyholders, consumers and claimants rather than stockholders or other investors. The nature and extent of state regulation varies by jurisdiction, and state insurance regulators generally have broad administrative power relating to, among other matters, setting capital and surplus requirements, licensing of insurers and agents, establishing standards for reserve adequacy, prescribing statutory accounting methods, determining the form and content of statutory financial reports, regulating certain transactions with affiliates and prescribing types and amounts of investments insurers may hold.

Regulation of insurance companies constantly changes as governmental agencies and legislatures react to real or perceived issues. In recent years, the state insurance regulatory framework has come under increased federal scrutiny, and some state legislatures have considered or enacted laws that alter and, in many cases, increase, state authority to regulate insurance companies and insurance holding company systems. Further, the National Association of Insurance Commissioners ("NAIC") and state insurance regulators are continually re-examining existing laws and regulations,

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specifically focusing on issues relating to the solvency of insurance companies, group capital requirements, interpretations of existing laws and the development of new laws. Although the federal government does not directly regulate the business of insurance, federal initiatives often affect the insurance industry in a variety of ways. In addition, the Federal Insurance Office (the "FIO") was established within the U.S. Department of the Treasury by the Dodd-Frank Wall Street Reform and Consumer Protection Act (the "Dodd-Frank Act") in July 2010 to monitor all aspects of the insurance industry, including identifying issues or gaps in the regulation of insurers that could contribute to a systemic crisis in the insurance industry or the U.S. financial system. See "—Federal and state legislative and regulatory changes" below.

Required licensing

Kinsale Insurance is organized and domiciled in the State of Arkansas and is authorized (licensed) in the State of Arkansas to transact certain lines of P&C insurance. This license is in good standing, and, pursuant to applicable Arkansas laws and regulations, will continue in force unless suspended, revoked or otherwise terminated, subject to certain conditions, including the payment by Kinsale Insurance of annual continuation fees, the filing of annual statutory financial statements and the filing of an annual registration statement with the Arkansas Insurance Department.

Kinsale Insurance currently operates on an excess and surplus lines basis in all 50 states, the District of Columbia, the Commonwealth of Puerto Rico and the U.S. Virgin Islands. While Kinsale Insurance does not have to apply for and maintain a license in those states (with the exception of Arkansas, its domiciliary state), it is subject to maintaining suitability standards under each particular state’s surplus lines laws to be included as an eligible surplus lines carrier (as discussed below, the Dodd-Frank Act has brought uniformity to these standards (see "—Federal and state legislative and regulatory changes")). In states in which it operates on a surplus line basis, Kinsale Insurance has freedom of rate and form on the majority of its business. This means that Kinsale Insurance can implement a change in policy form, underwriting guidelines, or rates for a product without regulatory approval.

Almost all insurance is written through licensed agents and brokers. In states in which we operate on a non-admitted basis, general agents and their retail insurance brokers generally are required to certify that a certain number of licensed admitted insurers had been offered and declined to write a particular risk prior to placing that risk with us.

In addition, Aspera, our insurance broker, and designated employees must be licensed to act as insurance producers, adjusters or third-party administrators, as applicable, by insurance regulatory authorities in the states where they operate. Such insurance regulatory authorities are vested in most cases with relatively broad discretion as to the granting, revocation, suspension, and renewal of licenses.

Insurance holding company regulation

We operate as an insurance holding company system and are subject to the insurance holding company laws of the State of Arkansas, the state in which Kinsale Insurance is organized and domiciled. These laws require that each insurance company in the system register with the insurance department of its state of domicile and furnish information concerning the operations of companies within the holding company system that may materially affect the operations, management or financial condition of the insurers within the system and domiciled in that state. These laws also provide that all transactions among members of a holding company system must be fair and reasonable. Transactions between insurance subsidiaries and their parents and affiliates generally must be disclosed to the state regulators, and notice to or prior approval of the applicable state insurance regulator generally is required for any material or extraordinary transaction. On December 9, 2020, the NAIC adopted the Group Capital Calculation (“GCC”) template and instructions, as well as corresponding amendments to NAIC model insurance holding company system laws. The amendments require, subject to certain exemptions, that the ultimate controlling person of each insurance group file a GCC on an annual basis with such insurance group’s lead state commissioner. The GCC uses a risk-based capital aggregation approach intended to provide regulators with an additional group supervisory tool.

Changes of control

Before a person can acquire control of a U.S. domestic insurer, prior written approval must be obtained from the insurance commissioner of the state where the insurer is domiciled. Prior to granting approval of an application to acquire control of a domestic insurer, the domiciliary state insurance commissioner will consider a number of factors, which include the

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financial strength of the proposed acquiror, the acquiror’s plans for the future operations of the domestic insurer and any anti-competitive results that may arise from the consummation of the acquisition of control.

Generally, state insurance statutes provide that control over a domestic insurer is presumed to exist if any person, directly or indirectly, owns, controls, holds with the power to vote, or holds proxies representing, ten percent or more of the voting securities of the domestic insurer. This statutory presumption of control may be rebutted by a showing that control does not exist in fact. The state regulators, however, may find that "control" exists in circumstances in which a person owns or controls less than ten percent of the voting securities of the domestic insurer.

As Kinsale Insurance is domiciled in Arkansas, the insurance laws and regulations of that state would be applicable to any proposed acquisition of control of Kinsale Insurance. Under applicable Arkansas insurance laws and regulations, no person may acquire control of a domestic insurer until written approval is obtained from the state insurance commissioner following a public hearing on the proposed acquisition. Such approval would be contingent upon the state insurance commissioner’s consideration of a number of factors, including among others, the financial strength of the proposed acquiror, the integrity and management of the acquiror’s board of directors and executive officers, the acquiror’s plans for the future operations of the domestic insurer and any anti-competitive results that may arise from the consummation of the acquisition of control. Arkansas insurance laws and regulations contain a rebuttable presumption of control if any person directly or indirectly acquires ten percent or more of the voting stock of an Arkansas-domiciled insurer. Accordingly, the acquisition of ten percent or more of our common stock would be considered an indirect change of control of Kinsale Insurance and would trigger the applicable change of control filing requirements under Arkansas insurance laws and regulations, absent a disclaimer of control filing and its acceptance by the Arkansas Insurance Department. These requirements may discourage potential acquisition proposals and may delay, deter or prevent a change of control of us, including through transactions that some or all of our stockholders might consider to be desirable.

Restrictions on paying dividends

State insurance laws restrict the ability of insurance companies to declare and pay stockholder dividends. State insurance regulators require insurance companies to maintain specified levels of statutory capital and surplus. The maximum dividend distribution absent the approval or non-disapproval of the insurance regulatory authority in Arkansas is limited by Arkansas law to the greater of 10% of policyholder surplus as of December 31 of the previous year or net income, not including realized capital gains, for the previous calendar year. Dividend payments are further limited to that part of available policyholder surplus which is derived from net profits on an insurer’s business.

Investment regulation

Kinsale Insurance is subject to state laws which require diversification of our investment portfolios and limits on the amount of our investments in certain categories. Failure to comply with these laws and regulations would cause non-conforming investments to be treated as non-admitted assets in the states in which we are licensed to sell insurance policies for purposes of measuring statutory surplus and, in some instances, would require us to sell those investments.

Restrictions on cancellation, non-renewal or withdrawal

Many states have laws and regulations that limit the ability of an insurance company licensed by that state to exit a market. Some states prohibit an insurer from withdrawing from one or more lines of business in the state except pursuant to a plan approved by the state insurance regulator, which may disapprove a plan that may lead to market disruption. Some state statutes may explicitly or by interpretation apply these restrictions to insurers operating on a surplus lines basis.

Enterprise risk and other developments

The NAIC, as part of its solvency modernization initiative, has engaged in a concerted effort to strengthen the ability of U.S. state insurance regulators to monitor U.S. insurance holding company groups. Recent efforts by the NAIC to establish group capital standards are consistent with this initiative. State insurance holding company laws, including those in Arkansas, address "enterprise" risk, the risk that an activity, circumstance, event or series of events involving one or more affiliates of an insurer will, if not remedied promptly, be likely to have a material adverse effect upon the financial condition or liquidity of the insurer or its insurance holding company system as a whole and require annual reporting of potential enterprise risk as well as access to information to allow the state insurance regulator to assess such

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risk. Under Arkansas insurance holding company laws, the ultimate controlling person of insurers subject to registration is required to file an annual enterprise risk report with the lead state commissioner, when applicable, of the insurance holding company system as determined by the procedures within the Financial Analysis Handbook adopted by the NAIC.

In 2012, the NAIC adopted the Risk Management and Own Risk and Solvency Assessment ("ORSA") Model Act. The ORSA Model Act, when adopted by state regulators requires domestic insurers to maintain a risk management framework and establishes a legal requirement for domestic insurers to conduct an ORSA. The ORSA Summary Report is a confidential internal assessment, appropriate to the nature, scale and complexity of an insurer, regarding the material and relevant risks identified by the insurer associated with an insurer’s current business plan and the sufficiency of capital resources to support those risks. Effective July 2015, Arkansas adopted its version of the ORSA Model Act. Our subsidiary, Kinsale Insurance, is subject to the requirements of the ORSA Model Act as adopted in its domicile of Arkansas.

Additionally, in response to the growing threat of cyber-attacks in the insurance industry, certain jurisdictions have begun to consider new cybersecurity measures, including the adoption of cybersecurity regulations which, among other things, would require insurance companies to establish and maintain a cybersecurity program and implement and maintain cybersecurity policies and procedures. On October 24, 2017, the NAIC adopted its Insurance Data Security Model Law, intended to serve as model legislation for states to enact in order to govern cybersecurity and data protection practices of insurers, insurance agents, and other licensed entities registered under state insurance laws (Arkansas has not yet adopted this model legislation). The New York State Department of Financial Services ("DFS") issued regulations governing cybersecurity requirements for financial services companies, which became effective on March 1, 2017, and requires insurance companies, among others, regulated in New York to assess their specific cyber risk profiles and design cyber security programs to address such risks. We annually file our program compliance certifications pertaining to the DFS cybersecurity requirements in New York.

Federal and state legislative and regulatory changes

The U.S. federal government’s oversight of the insurance industry was expanded under the Dodd-Frank Act. Prior to the enactment of the Dodd-Frank Act in July 2010, the U.S. federal government’s regulation of the insurance industry was essentially limited to certain insurance products, such as flood insurance, multi-peril crop insurance and reinsurance of losses from terrorism. As part of the overall federal financial regulatory reform package contained in the Dodd-Frank Act, Congress has legislated reforms in the surplus lines sector (among others).

The Dodd-Frank Act incorporates the Nonadmitted and Reinsurance Reform Act of 2010 ("NRRA"), which became effective on July 21, 2011. Among other things, the NRRA establishes national uniform standards on how states may regulate and tax surplus lines insurance and sets national standards concerning the regulation of reinsurance. In particular, the NRRA gives regulators in the home state of an insured exclusive authority to regulate and tax surplus lines insurance transactions, and regulators in a ceding insurer’s state of domicile the sole responsibility for regulating the balance sheet credit that the ceding insurer may take for reinsurance recoverables.

The Dodd-Frank Act also established the FIO in the U.S. Department of the Treasury and vested the FIO with the authority to monitor all aspects of the insurance sector, monitor the extent to which traditionally underserved communities and consumers have access to affordable non-health insurance products, and to represent the United States on prudential aspects of international insurance matters, including at the International Association of Insurance Supervisors (the "IAIS"). In addition, the FIO serves as an advisory member of the Financial Stability Oversight Council, assists the secretary of the U.S. Department of the Treasury with administration of the Terrorism Risk Insurance Program, and advises the secretary of the U.S. Department of the Treasury on important national and international insurance matters. In addition, the FIO has the ability to recommend to the Financial Stability Oversight Council the designation of an insurer as "systemically significant" and therefore subject to regulation by the Federal Reserve as a bank holding company.

In limited circumstances, the FIO can declare a state insurance law or regulation "preempted," but this can be done only after extensive consultation with state insurance regulators, the Office of the U.S. Trade Representative and key insurance industry players (in trade associations representing insurers and intermediaries). Additionally, the FIO must publish a notice regarding the basis for the preemption in the Federal Register, allowing a reasonable opportunity for comments.

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The FIO cannot preempt state antitrust laws governing rate making, underwriting, sales practices or coverage requirements. No later than September 30th of each year, the FIO must submit an annual report to Congress explaining any use of the preemption authority during the prior year.

In addition, a number of federal laws affect and apply to the insurance industry, including various privacy laws and the economic and trade sanctions implemented by the Office of Foreign Assets Control ("OFAC") of the U.S. Department of the Treasury. OFAC maintains and enforces economic sanctions against certain foreign countries and groups and prohibits U.S. persons from engaging in certain transactions with certain persons or entities. OFAC has imposed civil penalties on persons, including insurance and reinsurance companies, arising from violations of its economic sanctions program.

On November 20, 2015, the FIO and the Office of the U.S. Trade Representative announced their intention to exercise their authority under the Dodd-Frank Act to negotiate a “covered agreement” with the European Union (the “Covered Agreement”). After a number of private negotiating sessions, on January 13, 2017, the U.S. Department of the Treasury and the Office of the U.S. Trade Representative notified Congress that they had completed negotiations with the European Union for the Covered Agreement, which addressed reinsurance, insurance group supervision and the exchange of information between insurance supervisors. The Covered Agreement was formally entered into on September 22, 2017. A covered agreement between the United States and the United Kingdom extending terms nearly identical to the EU Covered Agreement to insurers and reinsurers operating in the UK following Brexit was entered into on December 11, 2018.

With respect to reinsurance, under the Covered Agreement, both the U.S. and the European Union agreed that their supervisory authorities will not impose reinsurance collateral requirements or "local presence" requirements on a reinsurer domiciled in (or with a head office in) the other’s territory that are less favorable than collateral or local presence requirements applied to a domestic reinsurer. However, the collateral or local presence provisions apply only if the insurer or reinsurer satisfies certain conditions and standards, including among others, minimum capital and risk-based capital, confirmation of financial condition by the reinsurer’s domestic regulator and claims payment standards. U.S. states have five years from execution of the Covered Agreement to adopt reinsurance reforms removing collateral requirements for European Union reinsurers that meet the prescribed conditions in the Covered Agreement. If the FIO determines that state laws are inconsistent with the Covered Agreement (the process of making potential preemption determinations will begin 42 months following execution of the Covered Agreement), such states laws may be preempted.

On June 25, 2019, the NAIC adopted revisions to the Credit for Reinsurance Model Law and Regulation in order to satisfy the substantive and timing requirements of the Covered Agreement. These amendments pave the way for state legislatures to bring their credit for reinsurance laws into compliance with the Covered Agreement's zero reinsurance collateral provisions by September 2022, thereby avoiding a potential federal preemption of these laws. Associated revisions were adopted by Arkansas effective July 1, 2021.

Trade practices

The manner in which insurance companies and insurance agents and brokers conduct the business of insurance is regulated by state statutes in an effort to prohibit practices that constitute unfair methods of competition or unfair or deceptive acts or practices. Prohibited practices include, but are not limited to, disseminating false information or advertising, unfair discrimination, rebating and false statements. We set business conduct policies and provide training to make our employee-agents and other sales personnel aware of these prohibitions, and we require them to conduct their activities in compliance with these statutes.

Unfair claims practices

Generally, insurance companies, adjusting companies and individual claims adjusters are prohibited by state statutes from engaging in unfair claims practices on a flagrant basis or with such frequency to indicate a general business practice. Unfair claims practices include, but are not limited to, misrepresenting pertinent facts or insurance policy provisions; failing to acknowledge and act reasonably promptly upon communications with respect to claims arising under insurance policies; and attempting to settle a claim for less than the amount to which a reasonable person would have believed such person was entitled. We set business conduct policies and conduct training to make our employee-adjusters and other

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claims personnel aware of these prohibitions, and we require them to conduct their activities in compliance with these statutes.

Credit for reinsurance

State insurance laws permit U.S. insurance companies, as ceding insurers, to take financial statement credit for reinsurance that is ceded, so long as the assuming reinsurer satisfies the state’s credit for reinsurance laws. The NRRA contained in the Dodd-Frank Act provides that if the state of domicile of a ceding insurer is an NAIC accredited state, or has financial solvency requirements substantially similar to the requirements necessary for NAIC accreditation, and recognizes credit for reinsurance for the insurer’s ceded risk, then no other state may deny such credit for reinsurance. Because all states are currently accredited by the NAIC, the Dodd-Frank Act prohibits a state in which a U.S. ceding insurer is licensed but not domiciled from denying credit for reinsurance for the insurer’s ceded risk if the cedant’s domestic state regulator recognizes credit for reinsurance. The ceding company in this instance is permitted to reflect in its statutory financial statements a credit in an aggregate amount equal to the ceding company’s liability for unearned premium (which are that portion of written premiums which applies to the unexpired portion of the policy period), loss reserves and loss expense reserves to the extent ceded to the reinsurer.

Periodic financial and market conduct examinations

The insurance regulatory authority in the State of Arkansas, our insurance subsidiary’s state of domicile, conducts on-site visits and examinations of the affairs of our insurance subsidiary, including its financial condition, its relationships and transactions with affiliates and its dealings with policyholders, every three to five years, and may conduct special or targeted examinations to address particular concerns or issues at any time. Insurance regulators of other states in which we do business also may conduct examinations. The results of these examinations can give rise to regulatory orders requiring remedial, injunctive or other corrective action. Insurance regulatory authorities have broad administrative powers to regulate trade practices and, in that connection, to restrict or rescind licenses to transact business and to levy fines and monetary penalties against insurers and insurance agents and brokers found to be in violation of applicable laws and regulations.

Risk-based capital

Risk-based capital ("RBC") laws are designed to assess the minimum amount of capital that an insurance company needs to support its overall business operations and to ensure that it has an acceptably low expectation of becoming financially impaired. State insurance regulators use RBC to set capital requirements, considering the size and degree of risk taken by the insurer and taking into account various risk factors including asset risk, credit risk, underwriting risk and interest rate risk. As the ratio of an insurer’s total adjusted capital and surplus decreases relative to its risk-based capital, the RBC laws provide for increasing levels of regulatory intervention culminating with mandatory control of the operations of the insurer by the domiciliary insurance department at the so-called mandatory control level.

The Arkansas Insurance Department has largely adopted the model legislation promulgated by the NAIC pertaining to RBC, and requires annual reporting by Arkansas-domiciled insurers to confirm that the minimum amount of RBC necessary for an insurer to support its overall business operations has been met. Arkansas-domiciled insurers falling below a calculated threshold may be subject to varying degrees of regulatory action, including supervision, rehabilitation or liquidation by the Arkansas Insurance Department. Failure to maintain our risk-based capital at the required levels could adversely affect the ability of Kinsale Insurance to maintain the regulatory authority necessary to conduct our business. However, as of December 31, 2021, Kinsale Insurance maintained RBC levels significantly in excess of amounts that would require any corrective actions.

IRIS ratios

The NAIC Insurance Regulatory Information System, or IRIS, is part of a collection of analytical tools designed to provide state insurance regulators with an integrated approach to screening and analyzing the financial condition of insurance companies operating in their respective states. IRIS is intended to assist state insurance regulators in targeting resources to those insurers in greatest need of regulatory attention. IRIS consists of two phases: statistical and analytical. In the statistical phase, the NAIC database generates key financial ratio results based on financial information obtained from insurers’ annual statutory statements. The analytical phase is a review of the annual statements, financial ratios and

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other automated solvency tools. The primary goal of the analytical phase is to identify companies that appear to require immediate regulatory attention. A ratio result falling outside the usual range of IRIS ratios is not considered a failing result; rather, unusual values are viewed as part of the regulatory early monitoring system. Furthermore, in some years, it may not be unusual for financially sound companies to have several ratios with results outside the usual ranges. An insurance company may fall out of the usual range for one or more ratios because of specific transactions that are in themselves immaterial.

Ratings

A.M. Best, which rates insurance companies based on factors of concern to policyholders, rates our insurance subsidiary. A.M. Best assigns ratings to insurance companies, which range from "A++" (Superior) to "F" (In Liquidation). Our insurance subsidiary, Kinsale Insurance, has a rating of "A" (Excellent), which is the third highest rating. In evaluating a company's financial and operating performance, A.M. Best reviews the company's profitability, leverage and liquidity, as well as its book of business, the adequacy and soundness of its reinsurance, the quality and estimated market value of its assets, the adequacy of its loss and loss expense reserves, the adequacy of its surplus, its capital structure, the experience and competence of its management and its market presence. A.M. Best's ratings reflect its opinion of an insurance company's financial strength, operating performance and ability to meet its obligations to policyholders. These evaluations are not directed to purchasers of an insurance company's securities.

Human Capital

As of December 31, 2021, we had 375 employees, of which 364 were full-time employees, and all of whom were located at our headquarters in Richmond, Virginia.

Compensation and Benefits

We believe that our employees are our most valuable asset and paying our employees well is the foundation of our performance-based culture. In order to attract and retain high-performing talent, we offer and maintain market-competitive compensation and benefit programs to all our employees. Our compensation program includes base salary, performance-based bonuses and equity grants for certain management-level employees. The mix of these rewards varies depending on the employee’s role at the Company and our longstanding pay-for-performance philosophy. While all of our employees are eligible to participate in the variable compensation elements of our program (annual cash bonus and equity awards), variable compensation becomes a larger portion of the total mix for employees at higher levels in the organization. Our executives, who are responsible for the development and execution of our strategic and financial plans, have the largest portion of their compensation tied to equity-based incentives to ensure financial alignment with our stakeholders.

In addition to competitive compensation, we offer comprehensive and flexible benefit options to support the health and wellness needs of our employees including:

• Company-matched 401(k) plan

• Educational assistance program

• Medical insurance, with one tier being zero cost

• Company-paid insurance benefits

• Health savings with large employer contributions and flexible spending accounts

• Paid time off, family leave, and employee assistance programs.

Learning and Development

Employee training and development programs that enhance employee skills and capabilities directly lead to Kinsale’s success. We encourage and support employee development through our Educational Assistance Program. All employees have the opportunity to enroll in courses or classes that will enhance their contribution to the organization and/or prepare them for more advanced positions at Kinsale. Our employees have access to courses tailored to specific career paths, such as underwriting, claims, information technology, reinsurance, and other disciplines to build professional expertise. We sponsor on-site education courses, such as the Chartered Property Casualty Underwriter (CPCU), that make professional development programs more accessible to our employees. In addition, we offer tuition reimbursement programs to encourage employees to enhance their education, skills and knowledge for their continued growth.

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Performance & Success

We believe that performance management ensures our continued success through cultivating the right talent and skill sets and equipping our employees with the necessary tools and feedback. On an annual basis, every employee at Kinsale actively participates in a performance evaluation. The annual performance management process requires setting goals, planning development, assessing progress against those goals as well as discussing opportunities for improvement. Our performance management process provides a forum for meaningful conversations to discuss what went well and what can be improved.

Diversity and Inclusion

We believe in hiring the best talent and making our employment-related decisions without regard to race, color, religion, gender, sexual orientation, national origin, age, veteran status, disability, or other characteristics or activity that is protected by state or U.S. federal law. We have an anti-nepotism policy in place to ensure fairness and business decisions are based on individual qualifications, skills, ability, and performance. We value the diverse perspectives, talent, and experience that our employees bring to our organization. We believe the best business decisions are reached by listening to diverse views and opinions.

We are committed to fostering a diverse and inclusive work environment free from discrimination of any kind and one that supports the communities we serve.

Available Information

We file annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and other information with the SEC. The SEC maintains an internet web site that contains reports, proxy and information statements and other information regarding issuers, including us, that file electronically with the SEC. The address of that site is https://www.sec.gov. Our annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K and other information filed by us with the SEC are available, without charge, on our internet web site, https://www.kinsalecapitalgroup.com, as soon as reasonably practicable after they are filed electronically with the SEC. The information on our website is not a part of this Annual Report.

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Item 1A. Risk Factors

You should carefully consider the risks and uncertainties described below, together with all of the other information in this Annual Report on Form 10-K. The risks and uncertainties described below are not the only ones facing us. There may be additional risks and uncertainties of which we currently are unaware or currently believe to be immaterial. The occurrence of any of these risks could materially and adversely affect our business, financial condition, liquidity, results of operations and prospects.

Risks Related to Our Business, Industry, and Operations

Our loss reserves may be inadequate to cover our actual losses, which could have a material adverse effect on our financial condition, results of operations and cash flows.

Our success depends on our ability to accurately assess the risks related to the businesses and people that we insure. We establish loss and loss adjustment expense reserves for the ultimate payment of all claims that have been incurred, and the related costs of adjusting those claims, as of the date of our financial statements. Reserves do not represent an exact calculation of liability. Rather, reserves represent an estimate of what we expect the ultimate settlement and administration of claims will cost us, and our ultimate liability may be greater or less than our estimate.

As part of the reserving process, we review historical data and consider the impact of such factors as:

•claims inflation, which is the sustained increase in cost of raw materials, labor, medical services and other components of claims cost;

•claims development patterns by line of business and by "claims made" versus "occurrence" policies;

•legislative activity;

•social and economic patterns; and

•litigation, judicial and regulatory trends.

These variables are affected by both internal and external events that could increase our exposure to losses, and we continually monitor our reserves using new information on reported claims and a variety of statistical techniques. This process assumes that past experience, adjusted for the effects of current developments and anticipated trends, is an appropriate basis for predicting future events. There is, however, no precise method for evaluating the impact of any specific factor on the adequacy of reserves, and actual results may deviate, perhaps substantially, from our reserve estimates. For instance, the following uncertainties may have an impact on the adequacy of our reserves:

•When we write "occurrence" policies, we are obligated to pay covered claims, up to the contractually agreed amount, for any covered loss that occurs while the policy is in force. Accordingly, claims may arise many years after a policy has lapsed. Approximately 77.2% of our net casualty loss reserves were associated with "occurrence" policies as of December 31, 2021.

•Even when a claim is received (irrespective of whether the policy is a "claims made" or "occurrence" basis form), it may take considerable time to fully appreciate the extent of the covered loss suffered by the insured and, consequently, estimates of loss associated with specific claims can increase over time.

•New theories of liability are enforced retroactively from time to time by courts. See also "—The failure of any of the loss limitations or exclusions we employ, or changes in other claims or coverage issues, could have a material adverse effect on our financial condition or results of operations."

•Volatility in the financial markets, economic events and other external factors may result in an increase in the number of claims and/or severity of the claims reported. In addition, elevated inflationary conditions would, among other things, cause loss costs to increase. See also "—Adverse economic factors, including recession, inflation, periods of high unemployment or lower economic activity could result in the sale of fewer policies than expected or an increase in frequency or severity of claims and premium defaults or both, which, in turn, could affect our growth and profitability."

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•If claims were to become more frequent, even if we had no liability for those claims, the cost of evaluating such potential claims could escalate beyond the amount of the reserves we have established. As we enter new lines of business, or as a result of new theories of claims, we may encounter an increase in claims frequency and greater claims handling costs than we had anticipated.

In addition, there may be significant reporting lags between the occurrence of the insured event and the time it is actually reported to us and additional lags between the time of reporting and final settlement of any claims. Consequently, estimates of loss associated with specified claims can increase as new information emerges, which could cause the reserves for the claim to become inadequate.

If any of our reserves should prove to be inadequate, we will be required to increase our reserves resulting in a reduction in our net income and stockholders’ equity in the period in which the deficiency is identified. Future loss experience substantially in excess of established reserves could also have a material adverse effect on our future earnings and liquidity and our financial rating.

For further discussion of our reserve experience, please see "Management’s Discussion and Analysis of Financial Condition and Results of Operations — Critical Accounting Estimates — Reserves for Unpaid Losses and Loss Adjustment Expenses."

Given the inherent uncertainty of models, the usefulness of such models as a tool to evaluate risk is subject to a high degree of uncertainty that could result in actual losses that are materially different than our estimates, including PMLs. A deviation from our loss estimates may adversely impact, perhaps significantly, our financial results.

Our approach to risk management relies on subjective variables that entail significant uncertainties. For example, we rely heavily on estimates of PMLs for certain events that are generated by computer-run models. In addition, we rely on historical data and scenarios in managing credit and interest rate risks in our investment portfolio. These estimates, models, data and scenarios may not produce accurate predictions and consequently, we could incur losses both in the risks we underwrite and to the value of our investment portfolio.

We use third-party vendor analytic and modeling capabilities to provide us with objective risk assessment relating to other risks in our reinsurance portfolio. We use these models to help us control risk accumulation, inform management and other stakeholders of capital requirements and to improve the risk/return profile or minimize the amount of capital required to cover the risks in each of our reinsurance contracts. However, given the inherent uncertainty of modeling techniques and the application of such techniques, these models and databases may not accurately address a variety of matters which might impact certain of our coverages.

Small changes in assumptions, which depend heavily on our judgment and foresight, can have a significant impact on the modeled outputs. For example, catastrophe models that simulate loss estimates based on a set of assumptions are important tools used by us to estimate our PMLs. These assumptions address a number of factors that impact loss potential including, but not limited to, the characteristics of a given natural catastrophe event; the increase in claim costs resulting from limited supply of labor and materials needed for repairs following a catastrophe event (demand surge); the types, function, location and characteristics of exposed risks; susceptibility of exposed risks to damage from an event with specific characteristics; and the financial and contractual provisions of the (re)insurance contracts that cover losses arising from an event. We run many model simulations in order to understand the impact of these assumptions on a catastrophe’s loss potential. Furthermore, there are risks associated with catastrophe events, which are either poorly represented or not represented at all by catastrophe models. Each modeling assumption or un-modeled risk introduces uncertainty into PML estimates that management must consider. These uncertainties can include, but are not limited to, the following:

•The models do not address all the possible hazard characteristics of a catastrophe peril (e.g. the precise path and wind speed of a hurricane);

•The models may not accurately reflect the true frequency of events;

•The models may not accurately reflect a risk's vulnerability or susceptibility to damage for a given event characteristic;

•The models may not accurately represent loss potential to insurance or reinsurance contract coverage limits, terms

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and conditions; and

•The models may not accurately reflect the impact on the economy of the area affected or the financial, judicial, political, or regulatory impact on insurance claim payments during or following a catastrophe event.

Our PMLs are reviewed by management after the assessment of outputs from multiple third-party vendor models and other qualitative and quantitative assessments, including exposures not typically modeled in vendor models. Our methodology for estimating PMLs may differ from methods used by other companies and external parties given the various assumptions and judgments required to estimate a PML.

As a result of these factors and contingencies, our reliance on assumptions and data used to evaluate our entire reinsurance portfolio and specifically to estimate a PML is subject to a high degree of uncertainty that could result in actual losses that are materially different from our PML estimates and our financial results could be adversely affected.

The failure of any of the loss limitations or exclusions we employ, or changes in other claims or coverage issues, could have a material adverse effect on our financial condition or results of operations.

Although we seek to mitigate our loss exposure through a variety of methods, the future is inherently unpredictable. It is difficult to predict the timing, frequency and severity of losses with statistical certainty. It is not possible to completely eliminate our exposure to unforecasted or unpredictable events and, to the extent that losses from such risks occur, our financial condition and results of operations could be materially adversely affected.

For instance, various provisions of our policies, such as limitations or exclusions from coverage or choice of forum, which have been negotiated to limit our risks, may not be enforceable in the manner we intend. At the present time, we employ a variety of endorsements to our policies that limit exposure to known risks. As industry practices and legal, judicial, social and other conditions change, unexpected and unintended issues related to claims and coverage may emerge.

In addition, we design our policy terms to manage our exposure to expanding theories of legal liability like those which have given rise to claims for lead paint, asbestos, mold, construction defects and environmental matters. Many of the policies we issue also include conditions requiring the prompt reporting of claims to us and entitle us to decline coverage in the event of a violation of those conditions. Also, many of our policies limit the period during which a policyholder may bring a claim under the policy, which in many cases is shorter than the statutory period under which such claims can be brought against our policyholders. While these exclusions and limitations help us assess and reduce our loss exposure and help eliminate known exposures to certain risks, it is possible that a court or regulatory authority could nullify or void an exclusion or legislation could be enacted modifying or barring the use of such endorsements and limitations. These types of governmental actions could result in higher than anticipated losses and loss adjustment expenses, which could have a material adverse effect on our financial condition or results of operations.

As industry practices and legal, judicial, social and other environmental conditions change, unexpected and unintended issues related to claims and coverage may emerge. Three examples of unanticipated risks that have adversely affected the insurance industry are:

•Asbestos liability applied to manufacturers of products and contractors who installed those products.

•Apportionment of liability arising from subsidence claims assigned to subcontractors who may have been involved in mundane tasks (such as installing sheetrock in a home).

•Court decisions, such as the 1995 Montrose decision in California, that read policy exclusions narrowly so as to expand coverage, thereby requiring insurers to create and write new exclusions.

These issues may adversely affect our business by either broadening coverage beyond our underwriting intent or by increasing the number or size of claims. In some instances, these changes may not become apparent until sometime after we have issued insurance contracts that are affected by the changes. As a result, the full extent of liability under our insurance contracts may not be known for many years after a contract is issued.

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We may be unable to obtain reinsurance coverage at reasonable prices or on terms that adequately protect us.

We use reinsurance to help manage our exposure to insurance risks. Reinsurance is a practice whereby one insurer, called the reinsurer, agrees to indemnify another insurer, called the ceding insurer, for all or part of the potential liability arising from one or more insurance policies issued by the ceding insurer. The availability and cost of reinsurance are subject to prevailing market conditions, both in terms of price and available capacity, which can affect our business volume and profitability. In addition, reinsurance programs are generally subject to renewal on an annual basis. We may not be able to obtain reinsurance on acceptable terms or from entities with satisfactory creditworthiness. If we are unable to obtain new reinsurance facilities or to renew expiring facilities, our net exposures would increase. In such event, if we are unwilling to bear an increase in our net exposure, we would have to reduce the level of our underwriting commitments, which would reduce our revenues.

Many reinsurance companies have begun to exclude certain coverages from, or alter terms in, the reinsurance contracts we enter into with them. Some exclusions are with respect to risks that we cannot exclude in policies we write due to business or regulatory constraints. In addition, reinsurers often impose terms, such as lower per-occurrence and aggregate limits, on direct insurers that do not wholly cover the risks written by these direct insurers. As a result, we, like other direct insurance companies, write insurance policies which to some extent do not have the benefit of reinsurance protection. These gaps in reinsurance protection expose us to greater risk and greater potential losses. For example, certain reinsurers have excluded coverage for terrorist acts or priced such coverage at rates higher than the underlying risk. Many direct insurers, including us, have written policies without terrorist act exclusions and in many cases we cannot exclude terrorist acts because of regulatory constraints. We may, therefore, be exposed to potential losses as a result of terrorist acts. See also "Business — Reinsurance."

Severe weather conditions, catastrophes, pandemics and similar events may adversely affect our business, results of operations and financial condition.

Our business is exposed to the risk of severe weather conditions and other catastrophes. Catastrophes can be caused by various events, including natural events such as severe winter weather, tornadoes, windstorms, earthquakes, hailstorms, severe thunderstorms and fires, and other events such as explosions, war, terrorist attacks and riots. The incidence and severity of catastrophes and severe weather conditions are inherently unpredictable. The extent of losses from catastrophes is a function of the total amount of insured value, the number of insureds affected, the frequency and severity of the events, the effectiveness of our catastrophe risk management program and the adequacy of our reinsurance coverage. Insurance companies are not permitted to reserve for a catastrophe until it has occurred. Severe weather conditions and catastrophes can cause losses in our property lines and generally result in both an increase in the number of claims incurred and an increase in the dollar amount of each claim asserted, which may require us to increase our reserves, causing our liquidity and financial condition to deteriorate. In addition, our inability to obtain reinsurance coverage at reasonable rates and in amounts adequate to mitigate the risks associated with severe weather conditions and other catastrophes could have a material adverse effect on our business and results of operations.

Our business is also exposed to the risk of pandemics, outbreaks, public health crises, and geopolitical and social events, and their related effects. While policy terms and conditions in the lines of business we write preclude coverage for virus-related claims, court decisions and governmental actions may challenge the validity of any exclusions or our interpretation of how such terms and conditions operate. We are closely monitoring the impact of the COVID-19 pandemic and the related economic impact on all aspects of our business, including its impact on premium volume, the fair value of our investment portfolio and loss reserves, as well as the potential for delayed reporting and settlement of claims. If pandemics, outbreaks and other events occur or re-occur for a significant length of time, and measures that are put into place by various governmental authorities to stabilize the economy are not effective, our business, financial condition, results of operations and cash flows may be materially adversely affected.

Global climate change may have a material adverse effect on our financial results.

Climate change could have a significant impact on longer-term natural weather trends, including increases in severe weather and catastrophic events. The incidence and severity of catastrophes are inherently unpredictable. While most catastrophes are restricted to fairly specific geographic areas, the extent of loss and damage for insurance purposes is a function of both the total amount of insured value in the area affected by the event and the severity of the event. We

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attempt to manage this exposure by using sophisticated computer models to help assess our exposure to catastrophic events, purchasing extensive reinsurance protection from financially strong counterparties and limiting the concentration of property business by geographic area. However, assessing the risk of loss and damage and the range of approaches to address the adverse effects of climate change, including impacts related to extreme weather events and slow onset events, remains a challenge and may materially adversely impact our business, financial condition and results of operations.

Risks Related to Market Conditions

Adverse economic factors, including recession, inflation, periods of high unemployment or lower economic activity could result in the sale of fewer policies than expected or an increase in frequency or severity of claims and premium defaults or both, which, in turn, could affect our growth and profitability.

Factors, such as business revenue, economic conditions, the volatility and strength of the capital markets and inflation can affect the business and economic environment. These same factors affect our ability to generate revenue and profits. In an economic downturn that is characterized by higher unemployment, declining spending and reduced corporate revenues, the demand for insurance products is generally adversely affected, which directly affects our premium levels and profitability. Negative economic factors may also affect our ability to receive the appropriate rate for the risk we insure with our policyholders and may adversely affect the number of policies we can write, including with respect to our opportunities to underwrite profitable business. In an economic downturn, our customers may have less need for insurance coverage, cancel existing insurance policies, modify their coverage or not renew the policies they hold with us. Existing policyholders may exaggerate or even falsify claims to obtain higher claims payments. These outcomes would reduce our underwriting profit to the extent these factors are not reflected in the rates we charge.

We underwrite a significant portion of our insurance in California, Florida and Texas. Any economic downturn in any such state could have an adverse effect on our business, financial condition and results of operations.

A decline in our financial strength rating may adversely affect the amount of business we write.

Participants in the insurance industry use ratings from independent ratings agencies, such as A.M. Best, as an important means of assessing the financial strength and quality of insurers. In setting its ratings, A.M. Best uses a quantitative and qualitative analysis of a company’s balance sheet strength, operating performance and business profile. This analysis includes comparisons to peers and industry standards as well as assessments of operating plans, philosophy and management. A.M. Best financial strength ratings range from "A++" (Superior) to "F" for insurance companies that have been publicly placed in liquidation. As of the date of this Annual Report on Form 10-K, A.M. Best has assigned a financial strength rating of "A" (Excellent) to our operating subsidiary, Kinsale Insurance. A.M. Best assigns ratings that are intended to provide an independent opinion of an insurance company’s ability to meet its obligations to policyholders and such ratings are not evaluations directed to investors and are not a recommendation to buy, sell or hold our common stock or any other securities we may issue. A.M. Best periodically reviews our financial strength rating and may revise it downward or revoke it at its sole discretion based primarily on its analysis of our balance sheet strength (including capital adequacy and loss adjustment expense reserve adequacy), operating performance and business profile. Factors that could affect such analysis include but are not limited to:

•if we change our business practices from our organizational business plan in a manner that no longer supports A.M. Best’s rating;

•if unfavorable financial, regulatory or market trends affect us, including excess market capacity;

•if our losses exceed our loss reserves;

•if we have unresolved issues with government regulators;

•if we are unable to retain our senior management or other key personnel;

•if our investment portfolio incurs significant losses; or

•if A.M. Best alters its capital adequacy assessment methodology in a manner that would adversely affect our rating.

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These and other factors could result in a downgrade of our financial strength rating. A downgrade or withdrawal of our rating could result in any of the following consequences, among others:

•causing our current and future brokers and insureds to choose other, more highly-rated competitors;

•increasing the cost or reducing the availability of reinsurance to us; or

•severely limiting or preventing us from writing new and renewal insurance contracts.

In addition, in view of the earnings and capital pressures recently experienced by many financial institutions, including insurance companies, it is possible that rating organizations will heighten the level of scrutiny that they apply to such institutions, will increase the frequency and scope of their credit reviews, will request additional information from the companies that they rate or will increase the capital and other requirements employed in the rating organizations’ models for maintenance of certain ratings levels. We can offer no assurance that our rating will remain at its current level. It is possible that such reviews of us may result in adverse ratings consequences, which could have a material adverse effect on our business, financial condition and results of operations.

We could be adversely affected by the loss of one or more key executives or by an inability to attract and retain qualified personnel.

We depend on our ability to attract and retain experienced personnel and seasoned key executives who are knowledgeable about our business. The pool of talent from which we actively recruit is limited and may fluctuate based on market dynamics specific to our industry and independent of overall economic conditions. As such, higher demand for employees having the desired skills and expertise could lead to increased compensation expectations for existing and prospective personnel, making it difficult for us to retain and recruit key personnel and maintain labor costs at desired levels. Only our Chief Executive Officer has an employment agreement with us and is subject to a non-compete agreement. Should any of our key executives terminate their employment with us, or if we are unable to retain and attract talented personnel, we may be unable to maintain our current competitive position in the specialized markets in which we operate, which could adversely affect our results of operations.

We rely on a select group of brokers, and such relationships may not continue.

We distribute the majority of our products through a select group of brokers. Of our 2021 gross written premiums, 56.3%, or $430.3 million, were distributed through five of our approximately 159 brokers, two of which accounted for 33.5%, or $255.7 million, of our 2021 gross written premiums.

Our relationship with any of these brokers may be discontinued at any time. Even if the relationships do continue, they may not be on terms that are profitable for us. The termination of a relationship with one or more significant brokers could result in lower gross written premiums and could have a material adverse effect on our results of operations or business prospects.

Our E&S insurance operations are subject to increased risk from changing market conditions and our business is cyclical in nature, which may affect our financial performance.

E&S insurance covers risks that are typically more complex and unusual than standard risks and require a high degree of specialized underwriting. As a result, E&S risks do not often fit the underwriting criteria of standard insurance carriers, and are generally considered higher risk than those covered in the standard market. If our underwriting staff inadequately judges and prices the risks associated with the business underwritten in the E&S market, our financial results could be adversely impacted.

Historically, the financial performance of the P&C insurance industry has tended to fluctuate in cyclical periods of price competition and excess capacity (known as a soft market) followed by periods of high premium rates and shortages of underwriting capacity (known as a hard market). Soft markets occur when the supply of insurance capital in a given market or territory is greater than the amount of insurance coverage demanded by all potential insureds in that market. When this occurs, insurance prices tend to decline and policy terms and conditions become more favorable to the insureds. Conversely, hard markets occur when there is not enough insurance capital capacity in the market to meet the

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needs of potential insureds, causing insurance prices to generally rise and policy terms and conditions to become more favorable to the insurers.

Although an individual insurance company's financial performance depends on its own specific business characteristics, the profitability of most P&C insurance companies tends to follow this cyclical market pattern. Further, this cyclical market pattern can be more pronounced in the E&S market than in the standard insurance market. When the standard insurance market hardens, the E&S market typically hardens, and growth in the E&S market can be significantly more rapid than growth in the standard insurance market. Similarly, when conditions begin to soften, many customers that were previously driven into the E&S market may return to the admitted market, exacerbating the effects of rate decreases. We cannot predict the timing or duration of changes in the market cycle because the cyclicality is due in large part to the actions of our competitors and general economic factors. These cyclical patterns cause our revenues and net income to fluctuate, which may cause the price of our common stock to be volatile.

Our employees could take excessive risks, which could negatively affect our financial condition and business.

As an insurance enterprise, we are in the business of binding certain risks. The employees who conduct our business, including executive officers and other members of management, underwriters, product managers and other employees, do so in part by making decisions and choices that involve exposing us to risk. These include decisions such as setting underwriting guidelines and standards, product design and pricing, determining which business opportunities to pursue and other decisions. We endeavor, in the design and implementation of our compensation programs and practices, to avoid giving our employees incentives to take excessive risks. Employees may, however, take such risks regardless of the structure of our compensation programs and practices. Similarly, although we employ controls and procedures designed to monitor employees’ business decisions and prevent them from taking excessive risks, these controls and procedures may not be effective. If our employees take excessive risks, the impact of those risks could have a material adverse effect on our financial condition and business operations.

Competition for business in our industry is intense.

We face competition from other specialty insurance companies, standard insurance companies and underwriting agencies, as well as from diversified financial services companies that are larger than we are and that have greater financial, marketing and other resources than we do. Some of these competitors also have longer experience and more market recognition than we do in certain lines of business. In addition, it may be difficult or prohibitively expensive for us to implement technology systems and processes that are competitive with the systems and processes of these larger companies.

In particular, competition in the insurance industry is based on many factors, including price of coverage, the general reputation and perceived financial strength of the company, relationships with brokers, terms and conditions of products offered, ratings assigned by independent rating agencies, speed of claims payment and reputation, and the experience and reputation of the members of our underwriting team in the particular lines of insurance and reinsurance we seek to underwrite. See "Business — Competition." In recent years, the insurance industry has undergone increasing consolidation, which may further increase competition.

A number of new, proposed or potential legislative or industry developments could further increase competition in our industry. These developments include:

•An increase in capital-raising by companies in our lines of business, which could result in new entrants to our markets and an excess of capital in the industry;

•The deregulation of commercial insurance lines in certain states and the possibility of federal regulatory reform of the insurance industry, which could increase competition from standard carriers; and

•Changing practices caused by the internet, including shifts in the way in which E&S insurance is purchased. We currently depend largely on the wholesale distribution model. If the wholesale distribution model were to be significantly altered by changes in the way E&S insurance were marketed, including, without limitation, through use of the internet, it could have a material adverse effect on our premiums, underwriting results and profits.

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We may not be able to continue to compete successfully in the insurance markets. Increased competition in these markets could result in a change in the supply and demand for insurance, affect our ability to price our products at risk-adequate rates and retain existing business, or underwrite new business on favorable terms. If this increased competition so limits our ability to transact business, our operating results could be adversely affected.

If we are unable to underwrite risks accurately and charge competitive yet profitable rates to our policyholders, our business, financial condition and results of operations will be adversely affected.

In general, the premiums for our insurance policies are established at the time a policy is issued and, therefore, before all of our underlying costs are known. Like other insurance companies, we rely on estimates and assumptions in setting our premium rates. Establishing adequate premium rates is necessary, together with investment income, to generate sufficient revenue to offset losses, loss adjustment expenses and other underwriting costs and to earn a profit. If we do not accurately assess the risks that we assume, we may not charge adequate premiums to cover our losses and expenses, which would adversely affect our results of operations and our profitability. Alternatively, we could set our premiums too high, which could reduce our competitiveness and lead to lower revenues. Pricing involves the acquisition and analysis of historical loss data and the projection of future trends, loss costs and expenses, and inflation trends, among other factors, for each of our products in multiple risk tiers and many different markets. In order to accurately price our policies, we must:

•collect and properly analyze a substantial volume of data from our insureds;

•develop, test and apply appropriate actuarial projections and ratings formulas;

•closely monitor and timely recognize changes in trends; and

•project both frequency and severity of our insureds’ losses with reasonable accuracy.

We seek to implement our pricing accurately in accordance with our assumptions. Our ability to undertake these efforts successfully and, as a result, accurately price our policies, is subject to a number of risks and uncertainties, including:

•insufficient or unreliable data;

•incorrect or incomplete analysis of available data;

•uncertainties generally inherent in estimates and assumptions;

•our failure to implement appropriate actuarial projections and ratings formulas or other pricing methodologies;

•regulatory constraints on rate increases;

•our failure to accurately estimate investment yields and the duration of our liability for loss and loss adjustment expenses; and

•unanticipated court decisions, legislation or regulatory action.

Because our business depends on insurance brokers, we are exposed to certain risks arising out of our reliance on these distribution channels that could adversely affect our results.

Certain premiums from policyholders, where the business is produced by brokers, are collected directly by the brokers and forwarded to our insurance subsidiary. In certain jurisdictions, when the insured pays its policy premium to its broker for payment on behalf of our insurance subsidiary, the premium might be considered to have been paid under applicable insurance laws and regulations. Accordingly, the insured would no longer be liable to us for those amounts, whether or not we have actually received the premium from that broker. Consequently, we assume a degree of credit risk associated with the brokers with whom we work. Where necessary, we review the financial condition of potential new brokers before we agree to transact business with them. Although the failure by any of our brokers to remit premiums to us has not been material to date, there may be instances where our brokers collect premiums but do not remit them to us and we may be required under applicable law to provide the coverage set forth in the policy despite the absence of related premiums being paid to us.

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The possibility of these events occurring depends in large part on the financial condition and internal operations of our brokers. If we are unable to collect premiums from our brokers in the future, our underwriting profits may decline and our financial condition and results of operations could be materially and adversely affected.

We are subject to reinsurance counterparty credit risk.

Although reinsurance makes the reinsurer liable to us to the extent the risk is transferred or ceded to the reinsurer, it does not relieve us (the ceding insurer) of our primary liability to our policyholders. Our reinsurers may not pay claims made by us on a timely basis, or they may not pay some or all of these claims. For example, reinsurers may default in their financial obligations to us as the result of insolvency, lack of liquidity, operational failure, fraud, asserted defenses based on agreement wordings or the principle of utmost good faith, asserted deficiencies in the documentation of agreements or other reasons. Any disputes with reinsurers regarding coverage under reinsurance contracts could be time consuming, costly and uncertain of success. We evaluate each reinsurance claim based on the facts of the case, historical experience with the reinsurer on similar claims and existing case law and include any amounts deemed uncollectible from the reinsurer in our reserve for uncollectible reinsurance. As of December 31, 2021, we had $156.6 million of aggregate reinsurance balances on paid and unpaid losses and ceded unearned premiums. These risks could cause us to incur increased net losses, and, therefore, adversely affect our financial condition.

We may act based on inaccurate or incomplete information regarding the accounts we underwrite.

We rely on information provided by insureds or their representatives when underwriting insurance policies. While we may make inquiries to validate or supplement the information provided, we may make underwriting decisions based on incorrect or incomplete information. It is possible that we will misunderstand the nature or extent of the activities or facilities and the corresponding extent of the risks that we insure because of our reliance on inadequate or inaccurate information.

The failure of our information technology and telecommunications systems could materially adversely affect our business.

Our business depends on our information technology and telecommunications systems, including our browser-based underwriting system. Among other things, we rely on these systems to interact with brokers and insureds, to underwrite business, to prepare policies and process premiums, to perform actuarial and other modeling functions, to process claims and make claims payments and to prepare internal and external financial statements and information. In addition, some of these systems include or rely on third-party systems not located on our premises or under our control. Events such as natural catastrophes, terrorist attacks, industrial accidents, third-party system or network outages or computer malware may cause our systems to fail or be inaccessible for extended periods of time. While we have implemented business contingency and other plans to protect our systems, sustained or repeated system failures or service denials could severely limit our ability to write and process new and renewal business, provide customer service, pay claims in a timely manner or otherwise operate in the ordinary course of business.

Our operations depend on the reliable and secure processing, storage and transmission of confidential and other data and information in our computer systems and networks. Computer malware, hackers, employee misconduct and other external hazards could expose our systems to security breaches, cyber-attacks or other disruptions. In addition, we routinely transmit and receive personal, personally identifiable, sensitive, confidential and proprietary data by electronic means and are subject to data privacy laws and regulations enacted in the jurisdictions in which we do business.

While we have implemented security measures designed to protect against breaches of security and other interference with our systems and networks, our systems and networks may be subject to significant breaches or interference. Any such event may result in material operational disruptions as well as unauthorized access to or the disclosure or loss of our proprietary information or our customers’ data and information, which in turn may result in legal claims, regulatory scrutiny and liability, the incurrence of costs to eliminate or mitigate further exposure, the loss of customers or affiliated advisors, reputational harm or other damage to our business. In addition, the trend toward general public notification of such incidents could exacerbate the harm to our business, financial condition and results of operations. Even if we successfully protect our technology infrastructure and the confidentiality of sensitive data, we could suffer harm to our business and reputation if attempted security breaches are publicized. We cannot be certain that advances in criminal

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capabilities, discovery of new vulnerabilities, attempts to exploit vulnerabilities in our systems, data thefts, physical system or network break-ins or inappropriate access, or other developments will not compromise or breach the technology or other security measures protecting the networks and systems used in connection with our business.

We employ third-party and open source licensed software for use in our business, and the inability to maintain these licenses, errors in the software we license or the terms of open source licenses could result in increased costs, or reduced service levels, which would adversely affect our business.

Our business relies on certain third-party software obtained under licenses from other companies. We anticipate that we will continue to rely on such third-party software in the future. Although we believe that there are commercially reasonable alternatives to the third-party software we currently license, this may not always be the case, or it may be difficult or costly to replace. In addition, integration of new third-party software may require significant work and require substantial investment of our time and resources. Our use of additional or alternative third-party software would require us to enter into license agreements with third parties, which may not be available on commercially reasonable terms or at all. Many of the risks associated with the use of third-party software cannot be eliminated, and these risks could negatively affect our business.

Additionally, the software powering our technology systems incorporates software covered by open source licenses. The terms of many open source licenses have not been interpreted by U.S. courts and there is a risk that the licenses could be construed in a manner that imposes unanticipated conditions or restrictions on our ability to operate our systems. In the event that portions of our proprietary software are determined to be subject to an open source license, we could be required to publicly release the affected portions of our source code or re-engineer all or a portion of our technology systems, each of which could reduce or eliminate the value of our technology systems. Such risk could be difficult or impossible to eliminate, and such an event could adversely affect our business, financial condition and results of operations.

Cloud provider service failure or control weakness could adversely affect our business.

We employ cloud-based services to host many of our applications and intend to expand our use. As we expand our use of cloud-based services, we will increasingly rely on third-party cloud providers to maintain appropriate controls and safeguards to protect confidential information we receive, including personal, personally identifiable, sensitive, confidential or proprietary data, and the integrity and continuous operation of our proprietary technology platform. While we conduct due diligence on these cloud providers with respect to their security and business controls, we may not have the visibility to effectively monitor the implementation and efficacy of these controls. Outside parties may be able to circumvent controls or exploit vulnerabilities, resulting in operational disruption, data loss, defects or a security event. Migrating to the cloud increases the risk of operational disruption should internet service be interrupted. While we have implemented business contingency and other plans to facilitate continuous internet access, sustained or concurrent service denials or similar failures could limit our ability to write and process new and renewal business, provide customer service, pay claims in a timely manner or otherwise operate our business. Any such event or failure could have a material adverse effect on our business, financial condition and results of operations.

We may change our underwriting guidelines or our strategy without stockholder approval.

Our management has the authority to change our underwriting guidelines or our strategy without notice to our stockholders and without stockholder approval. As a result, we may make fundamental changes to our operations without stockholder approval, which could result in our pursuing a strategy or implementing underwriting guidelines that may be materially different from the strategy or underwriting guidelines described in the section titled "Business" or elsewhere in this Annual Report on Form 10-K.

If actual renewals of our existing contracts do not meet expectations, our written premiums in future years and our future results of operations could be materially adversely affected.

Many of our contracts are written for a one-year term. In our financial forecasting process, we make assumptions about the rates of renewal of our prior year’s contracts. The insurance and reinsurance industries have historically been cyclical businesses with intense competition, often based on price. If actual renewals do not meet expectations or if we choose not

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to write a renewal because of pricing conditions, our written premiums in future years and our future operations would be materially adversely affected.

Our failure to accurately and timely pay claims could materially and adversely affect our business, financial condition, results of operations and prospects.

We must accurately and timely evaluate and pay claims that are made under our policies. Many factors affect our ability to pay claims accurately and timely, including the training and experience of our claims examiners, our claims organization’s culture and the effectiveness of our management, our ability to develop or select and implement appropriate procedures and systems to support our claims functions and other factors. Our failure to pay claims accurately and timely could lead to regulatory and administrative actions or material litigation, undermine our reputation in the marketplace and materially and adversely affect our business, financial condition, results of operations and prospects.

In addition, if we do not train new claims employees effectively or if we lose a significant number of experienced claims employees, our claims department’s ability to handle an increasing workload could be adversely affected. In addition to potentially requiring that growth be slowed in the affected markets, our business could suffer from decreased quality of claims work which, in turn, could adversely affect our operating margins.

The effects of litigation on our business are uncertain and could have an adverse effect on our business.

As is typical in our industry, we continually face risks associated with litigation of various types, including disputes relating to insurance claims under our policies as well as other general commercial and corporate litigation. Although we are not currently involved in any material litigation with our customers, other members of the insurance industry are the target of class action lawsuits and other types of litigation, some of which involve claims for substantial or indeterminate amounts, and the outcomes of which are unpredictable. This litigation may be based on a variety of issues, including insurance and claim settlement practices. We cannot predict with any certainty whether we will be involved in such litigation in the future or what impact such litigation would have on our business.

Risks Related to Our Investment Portfolio

Performance of our investment portfolio is subject to a variety of investment risks that may adversely affect our financial results.

Our results of operations depend, in part, on the performance of our investment portfolio. We seek to hold a high-quality, diversified portfolio of investments that is managed by professional investment advisory management firms in accordance with our investment policy and routinely reviewed by our Investment Committee. However, our investments are subject to general economic conditions and market risks as well as risks inherent to particular securities.

Our primary market risk exposures are to changes in interest rates and equity prices. See "Management's Discussion and Analysis of Financial Condition and Results of Operation — Quantitative and Qualitative Disclosures About Market Risk." In recent years, interest rates have been at or near historic lows. The protracted low interest rate environment continues to place pressure on our net investment income, particularly as it relates to fixed-maturity securities and short-term investments, which, in turn, may adversely affect our operating results. Future increases in interest rates could cause the values of our fixed-maturity securities portfolios to decline, with the magnitude of the decline depending on the duration of securities included in our portfolio and the amount by which interest rates increase. Some fixed-maturity securities have call or prepayment options, which create possible reinvestment risk in declining rate environments. Other fixed-maturity securities, such as mortgage-backed and asset-backed securities, carry prepayment risk or, in a rising interest rate environment, may not prepay as quickly as expected.

The value of our investment portfolio is subject to the risk that certain investments may default or become impaired due to deterioration in the financial condition of one or more issuers of the securities we hold, or due to deterioration in the financial condition of an insurer that guarantees an issuer’s payments on such investments. Downgrades in the credit ratings of fixed maturities also have a significant negative effect on the market valuation of such securities.

Such factors could reduce our net investment income and result in realized investment losses. Our investment portfolio is subject to increased valuation uncertainties when investment markets are illiquid. The valuation of investments is more

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subjective when markets are illiquid, thereby increasing the risk that the estimated fair value (i.e., the carrying amount) of the securities we hold in our portfolio does not reflect prices at which actual transactions would occur.

We also invest in marketable equity securities. These securities are carried on the consolidated balance sheet at fair value and are subject to potential losses and declines in value, which may never recover. Our equity investments totaled $172.6 million as of December 31, 2021.

Although we seek to preserve our capital, we cannot be certain that our investment objectives will be achieved, and results may vary substantially over time. In addition, although we seek to employ investment strategies that are not correlated with our insurance and reinsurance exposures, losses in our investment portfolio may occur at the same time as underwriting losses and, therefore, exacerbate the adverse effect of the losses on us.

Risks Related to Liquidity and Access to Capital

Because we are a holding company and substantially all of our operations are conducted by our insurance subsidiary, our ability to pay dividends depends on our ability to obtain cash dividends or other permitted payments from our insurance subsidiary.

Because we are a holding company with no business operations of our own, our ability to pay dividends to stockholders largely depends on dividends and other distributions from our insurance subsidiary, Kinsale Insurance. State insurance laws, including the laws of Arkansas, restrict the ability of Kinsale Insurance to declare stockholder dividends. State insurance regulators require insurance companies to maintain specified levels of statutory capital and surplus. Consequently, the maximum dividend distribution is limited by Arkansas law to the greater of 10% of policyholder surplus as of December 31 of the previous year or net income, not including realized capital gains, for the previous calendar year. Dividend payments are further limited to that part of available policyholder surplus which is derived from net profits on our business. The maximum amount of dividends Kinsale Insurance could pay us during 2022 without regulatory approval is $114.0 million. State insurance regulators have broad powers to prevent the reduction of statutory surplus to inadequate levels, and there is no assurance that dividends up to the maximum amounts calculated under any applicable formula would be permitted. Moreover, state insurance regulators that have jurisdiction over the payment of dividends by our insurance subsidiary may in the future adopt statutory provisions more restrictive than those currently in effect.

The declaration and payment of future dividends to holders of our common stock will be at the discretion of our Board of Directors and will depend on many factors. See "Dividend Policy."

We could be forced to sell investments to meet our liquidity requirements.

We invest the premiums we receive from our insureds until they are needed to pay policyholder claims. Consequently, we seek to manage the duration of our investment portfolio based on the duration of our loss and loss adjustment expense reserves to ensure sufficient liquidity and avoid having to liquidate investments to fund claims. Risks such as inadequate loss and loss adjustment reserves or unfavorable trends in litigation could potentially result in the need to sell investments to fund these liabilities. We may not be able to sell our investments at favorable prices or at all. Sales could result in significant realized losses depending on the conditions of the general market, interest rates and credit issues with individual securities.

We may require additional capital in the future, which may not be available or may only be available on unfavorable terms.

Our future capital requirements depend on many factors, including our ability to write new business successfully and to establish premium rates and reserves at levels sufficient to cover losses. Many factors will affect the amount and timing of our capital needs, including our growth rate and profitability, our claims experience, and the availability of reinsurance, market disruptions and other unforeseeable developments. If we need to raise additional capital, equity or debt financing may not be available at all or may be available only on terms that are not favorable to us. In the case of equity financings, dilution to our stockholders could result. In the case of debt financings, we may be subject to covenants that restrict our ability to freely operate our business. In any case, such securities may have rights, preferences and privileges that are senior to those of the shares of common stock currently outstanding. If we cannot obtain adequate capital on favorable

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terms or at all, we may not have sufficient funds to implement our operating plans and our business, financial condition or results of operations could be materially adversely affected.

Risks Related to Regulation

We are subject to extensive regulation, which may adversely affect our ability to achieve our business objectives. In addition, if we fail to comply with these regulations, we may be subject to penalties, including fines and suspensions, which may adversely affect our financial condition and results of operations.

Our insurance subsidiary, Kinsale Insurance, is subject to extensive regulation in Arkansas, its state of domicile, and to a lesser degree, the other states in which it operates. Most insurance regulations are designed to protect the interests of insurance policyholders, as opposed to the interests of investors or stockholders. These regulations generally are administered by a department of insurance in each state and relate to, among other things, authorizations to write E&S lines of business, capital and surplus requirements, investment and underwriting limitations, affiliate transactions, dividend limitations, changes in control, solvency and a variety of other financial and non-financial aspects of our business. Significant changes in these laws and regulations could further limit our discretion or make it more expensive to conduct our business. State insurance regulators also conduct periodic examinations of the affairs of insurance companies and require the filing of annual and other reports relating to financial condition, holding company issues and other matters. These regulatory requirements may impose timing and expense constraints that could adversely affect our ability to achieve some or all of our business objectives.

In addition, state insurance regulators have broad discretion to deny or revoke licenses for various reasons, including the violation of regulations. In some instances, where there is uncertainty as to applicability, we follow practices based on our interpretations of regulations or practices that we believe generally to be followed by the industry. These practices may turn out to be different from the interpretations of regulatory authorities. If we do not have the requisite licenses and approvals or do not comply with applicable regulatory requirements, state insurance regulators could preclude or temporarily suspend us from carrying on some or all of our activities or could otherwise penalize us. This could adversely affect our ability to operate our business. Further, changes in the level of regulation of the insurance industry or changes in laws or regulations themselves or interpretations by regulatory authorities could interfere with our operations and require us to bear additional costs of compliance, which could adversely affect our ability to operate our business.

The NAIC has adopted a system to test the adequacy of statutory capital of insurance companies, known as "risk-based capital." This system establishes the minimum amount of risk-based capital necessary for a company to support its overall business operations. It identifies P&C insurers that may be inadequately capitalized by looking at certain inherent risks of each insurer's assets and liabilities and its mix of net written premiums. Insurers falling below a calculated threshold may be subject to varying degrees of regulatory action, including supervision, rehabilitation or liquidation. Failure to maintain our risk-based capital at the required levels could adversely affect the ability of our insurance subsidiary to maintain regulatory authority to conduct our business. See also "Regulation — Required licensing."

We may become subject to additional government or market regulation.

Our business could be adversely affected by changes in state laws, including those relating to asset and reserve valuation requirements, surplus requirements, limitations on investments and dividends, enterprise risk and risk-based capital requirements and, at the federal level, by laws and regulations that may affect certain aspects of the insurance industry, including proposals for preemptive federal regulation. The U.S. federal government generally has not directly regulated the insurance industry except for certain areas of the market, such as insurance for flood, nuclear and terrorism risks. However, the federal government has undertaken initiatives or considered legislation in several areas that may affect the insurance industry, including tort reform, corporate governance and the taxation of reinsurance companies.

The Dodd-Frank Act also established the FIO and vested the FIO with the authority to monitor all aspects of the insurance sector, including to monitor the extent to which traditionally underserved communities and consumers have access to affordable non-health insurance products. In addition, the FIO has the ability to recommend to the Financial Stability Oversight Council the designation of an insurer as "systemically significant" and therefore subject to regulation by the Federal Reserve as a bank holding company. Any additional regulations established as a result of the Dodd-Frank Act could increase our costs of compliance or lead to disciplinary action. In addition, legislation has been introduced from

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time to time that, if enacted, could result in the federal government assuming a more direct role in the regulation of the insurance industry, including federal licensing in addition to or in lieu of state licensing and requiring reinsurance for natural catastrophes. We are unable to predict whether any legislation will be enacted or any regulations will be adopted, or the effect any such developments could have on our business, financial condition or results of operations.

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Item 1B. Unresolved Staff Comments

None.

Item 2. Properties

We own our executive and insurance offices located in Richmond, Virginia, and we currently occupy approximately 80,000 square feet of the 137,000 square feet of available office space.

We believe that our facilities are adequate for our current needs.

Item 3. Legal Proceedings

We are subject to legal proceedings in the normal course of operating our insurance business. We are not involved in any legal proceedings which reasonably could be expected to have a material adverse effect on our business, results of operations or financial condition.

Item 4. Mine Safety Disclosures

Not applicable.

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PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Market Price for Common Stock

Our common stock began trading on the Nasdaq Global Select Market ("Nasdaq") under the symbol "KNSL" on July 28, 2016. Before then, there was no public market for our common stock. Effective January 3, 2022, the Company transferred its common stock listing from the Nasdaq to the New York Stock Exchange ("NYSE") and continued to trade under its current symbol "KNSL." As of February 17, 2022, we had 94 stockholders of record of our common stock.

Dividend Policy

We currently expect to pay quarterly cash dividends in the future; however, the declaration, payment and amount of future dividends is subject to the discretion of our Board of Directors. Our Board of Directors gives consideration to various risks and uncertainties, including those discussed under the headings "Risk Factors" and "Management’s Discussion and Analysis of Financial Condition and Results of Operations" and elsewhere in this Annual Report on Form 10-K when determining whether to declare and pay dividends, as well as the amount thereof. Our Board of Directors may take into account a variety of factors when determining whether to declare any dividends, including (1) our financial condition, liquidity, results of operations (including our ability to generate cash flow in excess of expenses and our expected or actual net income), retained earnings and capital requirements, (2) general business conditions, (3) legal, tax and regulatory limitations, (4) contractual prohibitions and other restrictions, (5) the effect of a dividend or dividends on our financial strength ratings and (6) any other factors that our Board of Directors deems relevant.

Our status as a holding company and a legal entity separate and distinct from our subsidiaries affects our ability to pay dividends and make other payments. As a holding company without significant operations of our own, the principal sources of our funds are dividends and other payments from our subsidiaries. The ability of our insurance subsidiary to pay dividends to us is subject to limits under insurance laws of the state in which our insurance subsidiary is domiciled. See "Risk Factors – Risks Related to Our Business and Our Industry – Because we are a holding company and substantially all of our operations are conducted by our insurance subsidiary, our ability to pay dividends and service our debt obligations depends on our ability to obtain cash dividends or other permitted payments from our insurance subsidiary" and "Management’s Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources."

Performance Graph

The following performance graph compares the cumulative total shareholder return of an investment in (1) our common stock, (2) the cumulative total returns to the Nasdaq Composite Index and (3) the cumulative total returns to the Nasdaq Insurance Index, for the period from December 31, 2016 through December 31, 2021.

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The graph assumes an initial investment of $100 and the reinvestment of dividends, if any. Such returns are based on historical results and are not indicative of future performance.

	December 31,
	2016		2017		2018		2019		2020		2021
Kinsale Capital Group, Inc.	$	100.00	$	133.20	$	165.28	$	303.57	$	598.88	$	713.60
Nasdaq Composite Index	$	100.00	$	129.64	$	125.96	$	172.17	$	249.51	$	304.85
Nasdaq Insurance Index	$	100.00	$	116.95	$	110.34	$	133.15	$	132.39	$	170.09

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Item 6. Reserved

Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our consolidated financial statements and the accompanying notes included elsewhere in this Annual Report. The discussion and analysis below include certain forward-looking statements that are subject to risks, uncertainties and other factors described in "Risk Factors" that could cause actual results to differ materially from those expressed in, or implied by, those forward-looking statements. See "Forward-Looking Statements."

Year ended December 31, 2020 compared to year ended December 31, 2019

For a comparison of years ended December 31, 2020 and December 2019, see “Part II, Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” of our annual report on Form 10-K for the fiscal year ended December 31, 2020, which was filed with the SEC on February 25, 2021.

Overview

Founded in 2009, we are an established and growing specialty insurance company. We focus exclusively on the E&S market in the U.S., where we use our underwriting expertise to write coverages for hard-to-place small business risks and personal lines risks. We market and sell these insurance products in all 50 states, the District of Columbia, the Commonwealth of Puerto Rico and the U.S. Virgin Islands primarily through a network of independent insurance brokers. We have an experienced and cohesive management team, that has an average of over 25 years of relevant experience. Many of our employees and members of our management team have also worked together for decades at other E&S insurance companies.

We have one reportable segment, our Excess and Surplus Lines Insurance segment, which offers P&C insurance products through the E&S market. In 2021, the percentage breakdown of our gross written premiums was 85.1% casualty and 14.9% property. Our commercial lines offerings include small business, excess casualty, construction, commercial property, allied health, product liability, life sciences, general casualty, professional liability, management liability, energy, environmental, entertainment, health care, inland marine, public entity, and commercial insurance. We also write a small amount of homeowners insurance in the personal lines market, which in aggregate represented 3.5% of our gross written premiums in 2021.

Our goal is to deliver long-term value for our stockholders by growing our business and generating attractive returns. We seek to accomplish this by generating consistent and attractive underwriting profits while managing our capital prudently. We believe that we have built a company that is entrepreneurial and highly efficient, using our proprietary technology platform and leveraging the expertise of our highly experienced employees in our daily operations. We believe our systems and technology are at the digital forefront of the insurance industry, allowing us to quickly collect and analyze data, thereby improving our ability to manage our business and reducing response times for our customers. We believe that we have differentiated ourselves from our competitors by effectively leveraging technology, vigilantly controlling expenses and maintaining control over our underwriting and claims management.

COVID-19

We have been closely monitoring the impact of the COVID-19 pandemic and related economic effects on all aspects of our business, including its impact on premium volume, losses and the fair value of our investment portfolio.

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To date, we have not seen a significant decrease in the growth rate of our gross written premiums since the beginning of the COVID-19 pandemic and the related pressure in certain sectors of the U.S. economy. Over the past few years, including the time period preceding COVID-19, the E&S segment of the P&C market has been experiencing rapid growth due to dislocation in the overall property and casualty market.

With respect to reported claims, we do not write lines of business with heightened exposure to COVID-19 related claims. Specifically, we do not write event cancellation, mortgage insurance, trade credit or surety, workers' compensation or reinsurance business. Lines of business written by us that could be subject to COVID-19 related claims include general liability, management liability, healthcare-related professional liability and commercial property. In each case, policy terms and conditions would be expected to preclude coverage for virus-related claims. Although we cannot definitively determine the ultimate impact of COVID-19 and related economic conditions at this time, we have not currently experienced any material adverse effect on our loss ratios due to COVID-19 related claims. 

With respect to our investment portfolio, we seek to hold a high-quality, diversified portfolio of investments. During the first quarter of 2020, we experienced a significant decline in the fair value of our investment portfolio due to disruption in the global financial markets associated with COVID-19. Subsequent to the first quarter of 2020, the fair values of our investment portfolio rebounded sharply, gaining back all of the decline in fair value. However, during economic downturns, certain investments may default or become impaired due to deterioration in the financial condition or due to deterioration in the financial condition of an insurer that guarantees an issuer’s payments on such investments. Given the conservative nature of our investment portfolio, we do not expect a material adverse impact on the value of our investment portfolio or a long-term negative impact on our financial condition, results of operations or cash flows due to COVID-19.

Components of Our Results of Operations

Gross written premiums

Gross written premiums are the amounts received or to be received for insurance policies written or assumed by us during a specific period of time without reduction for policy acquisition costs, reinsurance costs or other deductions. The volume of our gross written premiums in any given period is generally influenced by:

•New business submissions;

•Conversion of new business submissions into policies;

•Renewals of existing policies; and

•Average size and premium rate of bound policies.

We earn insurance premiums on a pro rata basis over the term of the policy. Our insurance policies generally have a term of one year. Net earned premiums represent the earned portion of our gross written premiums, less that portion of our gross written premiums that is ceded to third-party reinsurers under our reinsurance agreements.

Ceded written premiums

Ceded written premiums are the amount of gross written premiums ceded to reinsurers. We enter into reinsurance contracts to limit our exposure to potential large losses. Ceded written premiums are earned over the reinsurance contract period in proportion to the period of risk covered. The volume of our ceded written premiums is impacted by the level of our gross written premiums and any decision we make to increase or decrease retention levels.

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Losses and loss adjustment expenses

Losses and loss adjustment expenses are a function of the amount and type of insurance contracts we write and the loss experience associated with the underlying coverage. In general, our losses and loss adjustment expenses are affected by:

•Frequency of claims associated with the particular types of insurance contracts that we write;

•Trends in the average size of losses incurred on a particular type of business;

•Mix of business written by us;

•Changes in the legal or regulatory environment related to the business we write;

•Trends in legal defense costs;

•Wage inflation; and

•Inflation in medical costs.

Losses and loss adjustment expenses are based on an actuarial analysis of the estimated losses, including losses incurred during the period and changes in estimates from prior periods. Losses and loss adjustment expenses may be paid out over a period of years.

Underwriting, acquisition and insurance expenses

Underwriting, acquisition and insurance expenses include policy acquisition costs and other underwriting expenses. Policy acquisition costs are principally comprised of the commissions we pay our brokers, net of ceding commissions we receive on business ceded under certain reinsurance contracts. Policy acquisition costs also include deferred underwriting expenses that are directly related to the successful acquisition of policies. The amortization of such policy acquisition costs is charged to expense in proportion to premium earned over the policy life. Other underwriting expenses represent the general and administrative expenses of our insurance business such as employment costs, telecommunication and technology costs, and legal and auditing fees.

Net investment income

Net investment income is an important component of our results of operations. We earn investment income on our portfolio of cash and invested assets. Our cash and invested assets are primarily comprised of fixed-maturity securities, and may also include cash equivalents, equity securities and short-term investments. The principal factors that influence net investment income are the size of our investment portfolio and the yield on that portfolio. As measured by amortized cost (which excludes changes in fair value), the size of our investment portfolio is mainly a function of our invested equity capital combined with premiums we receive from our insureds less payments on policyholder claims.

Change in fair value of equity securities

Change in fair value of equity securities represents the increase or decrease in the fair value of equity securities held during the period.

Net realized investment gains

Net realized investment gains are a function of the difference between the amount received by us on the sale of a security and the security's amortized cost.

Income tax expense

Currently, substantially all of our income tax expense is comprised of federal income taxes. Our insurance subsidiary, Kinsale Insurance Company, is not subject to income taxes in the states in which it operates; however, our non-insurance subsidiaries are subject to state income taxes but have not generated any material taxable income

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to date. The amount of income tax expense or benefit recorded in future periods will depend on the jurisdictions in which we operate and the tax laws and regulations in effect.

Key metrics

We discuss certain key metrics, described below, which we believe provide useful information about our business and the operational factors underlying our financial performance.

Underwriting income is a non-GAAP financial measure. We define underwriting income as net income, excluding net investment income, net change in the fair value of equity securities, net realized investment gains and losses, other income, other expenses and income tax expense. See "—Reconciliation of Non-GAAP Financial Measures" for a reconciliation of net income in accordance with GAAP to underwriting income.

Net operating earnings is a non-GAAP financial measure. We define net operating earnings as net income excluding the net change in the fair value of equity securities, after taxes, and net realized investment gains and losses, after taxes. See "—Reconciliation of Non-GAAP Financial Measures" for a reconciliation of net income in accordance with GAAP to net operating earnings.

Loss ratio, expressed as a percentage, is the ratio of losses and loss adjustment expenses to earned premiums, net of the effects of reinsurance.

Expense ratio, expressed as a percentage, is the ratio of underwriting, acquisition and insurance expenses to net earned premiums.

Combined ratio is the sum of the loss ratio and the expense ratio. A combined ratio under 100% indicates an underwriting profit. A combined ratio over 100% indicates an underwriting loss.

Return on equity is net income as a percentage of average beginning and ending total stockholders’ equity during the period.

Operating return on equity is a non-GAAP financial measure. We define operating return on equity as net operating earnings expressed as a percentage of average beginning and ending stockholders’ equity during the period. See "—Reconciliation of Non-GAAP Financial Measures" for a reconciliation of net income in accordance with GAAP to net operating earnings.

Net retention ratio is the ratio of net written premiums to gross written premiums.

Gross investment return is investment income from fixed-maturity and equity securities, before any deductions for fees and expenses, expressed as a percentage of the average beginning and ending book values of those investments during the period.

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Results of Operations

Year ended December 31, 2021 compared to year ended December 31, 2020

The following table summarizes our results of operations for the years ended December 31, 2021 and 2020:

	Year Ended December 31,
($ in thousands)	2021			2020			Change		% Change
Gross written premiums	$	764,373		$	552,814		$	211,559	38.3	%
Ceded written premiums	(104,164)			(74,595)			(29,569)		39.6	%
Net written premiums	$	660,209		$	478,219		$	181,990	38.1	%
Net earned premiums	$	582,879		$	412,754		$	170,125	41.2	%
Losses and loss adjustment expenses	324,415			263,802			60,613		23.0	%
Underwriting, acquisition and insurance expenses	124,900			94,296			30,604		32.5	%
Underwriting income (1)	133,564			54,656			78,908		144.4	%
Other expenses, net	(1,451)			(741)			(710)		NM
Net investment income	31,048			26,110			4,938		18.9	%
Change in fair value of equity securities	22,812			16,855			5,957		NM
Net realized investment gains	2,828			3,533			(705)		NM
Income before taxes	188,801			100,413			88,388		88.0	%
Income tax expense	36,142			11,994			24,148		201.3	%
Net income	$	152,659		$	88,419		$	64,240	72.7	%
Net operating earnings (2)	$	132,404		$	72,313		$	60,091	83.1	%
Loss ratio	55.7		%	63.9		%
Expense ratio	21.4		%	22.8		%
Combined ratio	77.1		%	86.7		%
Return on equity	23.9		%	18.0		%
Operating return on equity (2)	20.8		%	14.7		%

NM - Percentage change is not meaningful

(1) Underwriting income is a non-GAAP financial measure. See "—Reconciliation of Non-GAAP Financial Measures" for a reconciliation of net income in accordance with GAAP to underwriting income.

(2) Net operating earnings and operating return on equity are non-GAAP financial measures. Net operating earnings is defined as net income excluding the net change in the fair value of equity securities, after taxes, and net realized investment gains and losses, after taxes. Operating return on equity is defined as net operating earnings expressed as a percentage of average beginning and ending total stockholders’ equity during the period. See "—Reconciliation of Non-GAAP Financial Measures" for a reconciliation of net income in accordance with GAAP to net operating earnings.

Net income was $152.7 million for the year ended December 31, 2021 compared to $88.4 million for the year ended December 31, 2020, an increase of $64.2 million, or 72.7%. The increase in net income in 2021 over 2020 was primarily due to higher underwriting income reflecting favorable E&S market conditions, which resulted in higher

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rates on bound accounts and strong growth in broker submissions. In addition, higher net favorable development of loss reserves from prior accident years, lower catastrophe activity and a higher total return on our investment portfolio, both in terms of an increase in the fair value of equity securities and investment income, contributed to the strong results for the year.

Our underwriting income was $133.6 million for the year ended December 31, 2021 compared to $54.7 million for the year ended December 31, 2020, an increase of $78.9 million, or 144.4%. The increase in our underwriting income was largely due to premium growth and continued rate increases from a strong underwriting environment, higher net favorable development of loss reserves from prior accident years and lower catastrophe activity. The corresponding combined ratios were 77.1% for the year ended December 31, 2021 compared to 86.7% for the year ended December 31, 2020.

Premiums

Gross written premiums were $764.4 million for the year ended December 31, 2021 compared to $552.8 million for the year ended December 31, 2020, an increase of $211.6 million, or 38.3%. The increase in gross written premiums for the year ended December 31, 2021 over the prior year was due to higher submission activity from brokers and higher rates on bound accounts, resulting from favorable market conditions. The average premium per policy written by us was $10,400 in 2021 compared to $9,100 in 2020. Excluding our personal lines insurance, which has relatively low premiums per policy written, the average premium per policy written was $12,900 in 2021 compared to $11,800 in 2020. The increase in the average premium per policy written was due to changes in the mix of business and higher rates on bound accounts during 2021 compared to the prior year. Gross written premiums increased across substantially all of our lines of business for the year ended December 31, 2020 and were most notable in the following lines of business:

•Excess Casualty, which represented approximately 14.3% of our gross written premiums in 2021, increased by $32.7 million, or 42.7%, for the year ended December 31, 2021 over the prior year;

•Small Business, which represented approximately 14.7% of our gross written premiums in 2021, increased by $28.9 million, or 34.6%, for the year ended December 31, 2021 over the prior year;

•Commercial Property, which represented approximately 10.3% of our gross written premiums in 2021, increased by $26.9 million, or 52.0%, for the year ended December 31, 2021 over the prior year;

•Allied Health, which represented approximately 7.7% of our gross written premiums in 2021, increased by $21.6 million, or 57.6%, for the year ended December 31, 2021 over the prior year, and

•Products Liability, which represented approximately 7.2% of our gross written premiums in 2021, increased by $16.8 million, or 43.8%, for the year ended December 31, 2021 over the prior year.

Net written premiums increased by $182.0 million, or 38.1%, to $660.2 million for the year ended December 31, 2021 from $478.2 million for the year ended December 31, 2020. The increase in net written premiums was largely due to higher gross written premiums for the year ended December 31, 2021. Our net retention ratio was 86.4% for the year ended December 31, 2021 compared to 86.5% for the year ended December 31, 2020. The decrease in the net retention ratio was primarily due to change in the mix of business.

Net earned premiums were $582.9 million for the year ended December 31, 2021 compared to $412.8 million for the year ended December 31, 2020, an increase of $170.1 million, or 41.2%. As previously discussed, the increase was due to growth in gross written premiums in 2021 compared to 2020.

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Loss ratio

Our loss ratio was 55.7% for the year ended December 31, 2021 compared to 63.9% for the year ended December 31, 2020. The decrease in the loss ratio for the year ended December 31, 2021 was due primarily to lower catastrophe activity, higher favorable development on loss reserves from prior accident years and slightly lower loss selections for the current accident year. The loss selections in the current accident year were slightly lower relative to the prior year due to favorable market conditions and continued rate increases that exceeded loss cost trends. During the year ended December 31, 2021, net catastrophe losses incurred in the current accident year were primarily attributable to Hurricane Ida and winter storms in Texas. During the year ended December 31, 2020, net catastrophe losses incurred were primarily due to Hurricanes Laura and Sally and the California wildfires.

During the year ended December 31, 2021, prior accident years developed favorably by $32.0 million, of which $33.7 million was attributable to the 2020 accident year and was related to a lower-than-expected level of reported losses. Although we did not have any significant direct COVID-19 exposure, the related disruption in the court system and the general economy created additional uncertainty in estimating loss reserves in 2020. As a result, 2020 accident year actuarial assumptions were adjusted in 2020 to increase IBNR to account for this additional uncertainty. Our current outlook is more favorable than in the prior year and, based on observed trends, we reevaluated and adjusted certain assumptions for accident year 2020 in 2021 to reflect the favorable experience. In addition, $3.8 million of favorable development was attributable to accident year 2019 due to reported losses emerging at lower levels than expected. This favorable development was offset in part by adverse development, mostly attributable to the 2016 and 2018 accident years due to modest adjustments in actuarial assumptions.

During the year ended December 31, 2020, loss reserves for prior accident years developed favorably by $13.3 million, of which $12.3 million was attributable to accident years 2019 and 2018, primarily due to reported losses emerging at lower levels than expected.

On an inception-to-date basis as of December 31, 2021, all accident years have developed favorably, with the exception of the 2011 accident year.

The following table summarizes the effect of the factors indicated above on the loss ratios for the years ended December 31, 2021 and 2020:

	Year Ended December 31,
	2021				2020
($ in thousands)	Losses and Loss Adjustment Expenses		% of Earned Premiums		Losses and Loss Adjustment Expenses		% of Earned Premiums
Loss ratio:
Current accident year	$	347,761	59.7	%	$	253,948	61.5	%
Current accident year - catastrophe losses	8,640		1.5	%	23,192		5.6	%
Effect of prior year development	(31,986)		(5.5)	%	(13,338)		(3.2)	%
Total	$	324,415	55.7	%	$	263,802	63.9	%

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Expense ratio

The following table summarizes the components of the expense ratio for the years ended December 31, 2021 and 2020:

	Year Ended December 31,
	2021				2020
($ in thousands)	Underwriting Expenses		% of Earned Premiums		Underwriting Expenses		% of Earned Premiums
Commissions incurred:
Direct	$	98,847	16.9	%	$	69,922	16.9	%
Ceding	(25,702)		(4.4)	%	(16,145)		(3.9)	%
Net commissions incurred	73,145		12.5	%	53,777		13.0	%
Other underwriting expenses	51,755		8.9	%	40,519		9.8	%
Underwriting, acquisition, and insurance expenses	$	124,900	21.4	%	$	94,296	22.8	%

The expense ratio was 21.4% for the year ended December 31, 2021 compared to 22.8% for the year ended December 31, 2020. The decrease in the expense ratio was due to lower other underwriting expenses and lower net commissions incurred as a percentage of earned premiums. The decrease in the other underwriting expense ratio was primarily due to higher net earned premiums, without a proportional increase in the amount of other underwriting expenses, as a result of management's focus on controlling costs. The decrease in the net commissions incurred ratio was mostly due to higher ceding commissions resulting from growth in the excess casualty and personal insurance lines of business and a change in the mix of business. Direct commissions paid as a percent of gross written premiums was 14.6% for the years ended December 31, 2021 and 2020.

Investing results

Our net investment income increased by 18.9% to $31.0 million for the year ended December 31, 2021 from $26.1 million for the year ended December 31, 2020, primarily due to growth in our investment portfolio balance generated from the investment of positive cash flow since December 31, 2021.

The following table summarizes the components of net investment income and net unrealized and realized investment gains for the years ended December 31, 2021 and 2020:

	Year Ended December 31,
($ in thousands)	2021		2020		Change
Interest from fixed-maturity securities	$	29,155	$	24,111	$	5,044
Dividends on equity securities	3,962		3,512		450
Other	12		262		(250)
Gross investment income	33,129		27,885		5,244
Investment expenses	(2,081)		(1,775)		(306)
Net investment income	31,048		26,110		4,938
Change in the fair value of equity securities	22,812		16,855		5,957
Net realized investment gains	2,828		3,533		(705)
Net unrealized and realized investment gains	25,640		20,388		5,252
Total	$	56,688	$	46,498	$	10,190

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The weighted average duration of our fixed-maturity portfolio, including cash equivalents, was 4.3 years at December 31, 2021 and 2020. Our fixed-maturity investment portfolio, excluding cash equivalents and unrealized gains and losses, had a gross investment return of 2.5% as of December 31, 2021, compared to 2.9% as of December 31, 2020 and the decrease was due to a lower interest rate environment.

During the year ended December 31, 2021, the change in fair value of equity securities of $22.8 million was comprised of unrealized gains related to ETF securities of $23.2 million and unrealized losses related to non-redeemable preferred stock of $0.4 million. The change in the fair value of our ETF portfolio largely reflects the performance in the broader domestic stock markets.

During the year ended December 31, 2020, the change in fair value of equity securities of $16.9 million was comprised of unrealized gains related to ETF securities of $16.4 million and non-redeemable preferred stock of $0.5 million. The change in the fair value of our ETFs was reflective of the gains in the broader stock markets during the period. During the first quarter of 2020, the fair values our ETFs declined by $13.1 million, driven by the disruption in the financial markets associated with the COVID-19 pandemic. The fair value of these funds rebounded sharply during the second quarter of 2020, gaining back a substantial portion of the decline in value, and fair values continued to increase during the latter half of 2020 on an improving outlook.

We perform quarterly reviews of all available-for-sale securities within our investment portfolio to determine whether the decline in a security's fair value is deemed to be a credit loss. Management concluded that there were no credit losses from available-for-sale investments for the year ended December 31, 2021 or 2020.

Income tax expense

Our effective tax rate was approximately 19.1% for the year ended December 31, 2021 compared to 11.9% for the year ended December 31, 2020. The effective tax rate was lower than the federal statutory rate of 21% primarily due to the tax benefits from stock-based compensation and tax-exempt investment income. The effective tax rate was higher for the year ended December 31, 2021 compared to the year ended December 31, 2020 as a result of fewer stock options exercised in 2021 relative to the prior year.

Return on equity

Our return on equity was 23.9% for the year ended December 31, 2021 compared to 18.0% for the year ended December 31, 2020. Operating return on equity was 20.8% for 2021, an increase from 14.7% for 2020. The increase in the operating return on equity was attributable primarily to growth in the business from continuing favorable market conditions and rate increases, lower catastrophe activity and higher net favorable development of loss reserves from prior accident years.

Liquidity and Capital Resources

Sources and uses of funds

We are organized as a Delaware holding company with our operations primarily conducted by our wholly-owned insurance subsidiary, Kinsale Insurance, which is domiciled in Arkansas. Accordingly, Kinsale may receive cash through (1) loans from banks, (2) issuance of equity and debt securities, (3) corporate service fees from our insurance subsidiary, (4) payments from our subsidiaries pursuant to our consolidated tax allocation agreement and other transactions and (5) dividends from our insurance subsidiary. We may use the proceeds from these sources to contribute funds to Kinsale Insurance in order to support premium growth, reduce our reliance on reinsurance, pay dividends and taxes and for other business purposes.

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We receive corporate service fees from Kinsale Insurance to reimburse us for most of the operating expenses that we incur. Reimbursement of expenses through corporate service fees is based on the actual costs that we expect to incur with no mark-up above our expected costs.

We file a consolidated federal income tax return with our subsidiaries, and under our corporate tax allocation agreement, each participant is charged or refunded taxes according to the amount that the participant would have paid or received had it filed on a separate return basis with the Internal Revenue Service.

State insurance laws restrict the ability of Kinsale Insurance to declare stockholder dividends without prior regulatory approval. State insurance regulators require insurance companies to maintain specified levels of statutory capital and surplus. The maximum dividend distribution Kinsale Insurance may make absent the approval or non-disapproval of the insurance regulatory authority in Arkansas is limited by Arkansas law to the greater of (1) 10% of policyholder surplus as of December 31 of the previous year, or (2) net income, not including realized capital gains, for the previous calendar year. The Arkansas statute also requires that dividends and other distributions be paid out of positive unassigned surplus without prior approval. The maximum amount of dividends Kinsale Insurance can pay us during 2022 without regulatory approval is $114.0 million. Insurance regulators have broad powers to ensure that statutory surplus remains at adequate levels, and there is no assurance that dividends of the maximum amount calculated under any applicable formula would be permitted. In the future, state insurance regulatory authorities that have jurisdiction over the payment of dividends by Kinsale Insurance may adopt statutory provisions more restrictive than those currently in effect. Kinsale Insurance paid $8.0 million of dividends to us during 2021. See also "Risk Factors — Risks Related to Our Business and Our Industry — Because we are a holding company and substantially all of our operations are conducted by our insurance subsidiary, our ability to pay dividends depends on our ability to obtain cash dividends or other permitted payments from our insurance subsidiary."

As of December 31, 2021, our holding company had $14.6 million in cash and investments, compared to $8.4 million as of December 31, 2020.

Management believes there is sufficient liquidity available at the holding company and in its insurance subsidiary, Kinsale Insurance, as well as in its other operating subsidiaries, to meet its operating cash needs and obligations for the next 12 months.

Credit agreement

On May 28, 2019, we entered into a Credit Agreement that provided us with a $50 million Credit Facility (the "Credit Facility") and an uncommitted accordion feature that permits the Company to increase the commitments by an additional $30 million. The Credit Facility has a maturity of May 28, 2024. Borrowings under the Credit Facility were used to fund the construction of our new headquarters but may also be used for working capital and general corporate purposes. As of December 31, 2021, there was $42.7 million outstanding under the Credit Facility, net of debt issuance costs.

Loans under the Credit Facility may be subject to varying rates of interest depending on whether the loan is a Eurodollar loan or an alternate base rate (ABR) loan, at the Company's election. Eurodollar loans bear an interest rate per annum equal to adjusted LIBOR for the applicable interest period plus a margin of 1.75%. ABR loans bear an interest rate per annum equal to the higher of the prime rate, the New York Federal Reserve Board Rate or the one-month adjusted LIBOR, plus the applicable margin of 0.75% or 1.75%, depending on which interest option was applicable for the particular ABR loan.

The Credit Agreement also contains representations and warranties and affirmative and negative covenants customary for financings of this type, as well as customary events of default. As of December 31, 2021, the Company was in compliance with all of its financial covenants under the Credit Facility.

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In July 2017, the U.K. Financial Conduct Authority announced that, after the end of 2021, it would no longer persuade or compel contributing banks to make rate submissions to the ICE Benchmark Administration (together with any successor to the ICE Benchmark Administrator, the “IBA”) for purposes of the IBA setting the London interbank offered rate. On March 5, 2021 the IBA announced that it will 1) cease the publication of the one-week and two-month USD LIBOR after December 31, 2021, and 2) cease the publication of all other tenors of USD LIBOR after June 30, 2023, including the three-month USD LIBOR rate. The Credit Agreement provides procedures for determining a replacement or alternative base rate in the event that LIBOR is discontinued. However, there can be no assurances as to whether such replacement or alternative base rate will be more or less favorable than LIBOR. The Company has been monitoring the developments with respect to the phasing out of LIBOR and will work with its lenders to seek to ensure the transition away from LIBOR will have minimal impact on its financial condition.

Shelf registration

In August 2019, we filed a universal shelf registration statement with the SEC that expires in 2022. We can use this shelf registration to issue an unspecified amount of debt securities, common stock, preferred stock, depositary shares and warrants. The specific terms of any securities we issue under this registration statement will be provided in the applicable prospectus supplements.

On August 7, 2020, we completed an underwritten public offering and sold and issued 310,500 shares of our common stock at a price of $190 per share. After deducting underwriting discounts and commissions, we received net proceeds of $56.7 million, which was used for general corporate purposes, including to fund organic growth.

Cash flows

Our most significant source of cash is from premiums received from our insureds, which, for most policies, we receive at the beginning of the coverage period. Our most significant cash outflow is for claims that arise when a policyholder incurs an insured loss. Because the payment of claims occurs after the receipt of the premium, often years later, we invest the cash in various investment securities that earn interest and dividends. We also use cash to pay commissions to brokers, as well as to pay for ongoing operating expenses such as salaries, consulting services and taxes. As described under "—Reinsurance" below, we use reinsurance to manage the risk that we take on our policies. We cede, or pay out, part of the premiums we receive to our reinsurers and collect cash back when losses subject to our reinsurance coverage are paid.

The timing of our cash flows from operating activities can vary among periods due to the timing by which payments are made or received. Some of our payments and receipts, including loss settlements and subsequent reinsurance receipts, can be significant, so their timing can influence cash flows from operating activities in any given period. Management believes that cash receipts from premiums, proceeds from investment sales and redemptions and investment income are sufficient to cover cash outflows in the foreseeable future.

Our cash flows for the years ended December 31, 2021 and 2020 were:

	Year Ended December 31,
	2021		2020
	(in thousands)
Cash and cash equivalents provided by (used in):
Operating activities	$	407,042	$	279,974
Investing activities	(351,955)		(379,433)
Financing activities	(11,140)		76,144
Change in cash and cash equivalents	$	43,947	$	(23,315)

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We have historically generated positive operating cash flows. The increase in cash provided by operating activities in 2021 compared to 2020 was due primarily to growth in business and the timing of claim payments and reinsurance recoverable balances. Cash flows from operations were used to fund investing activities and to pay dividends to our stockholders.

For the year ended December 31, 2021, net cash used in investing activities of $352.0 million reflected growth in our business operations. For the year ended December 31, 2021, funds from operations were used to purchase fixed-maturity securities, particularly corporate bonds and asset- and mortgage-backed securities of $633.6 million, and to a lesser extent, municipal bonds of $14.4 million and sovereigns of $6.9 million. During 2021, we received proceeds of $113.0 million from sales of fixed-maturity securities, largely corporate bonds in order to take advantage of favorable valuations. In addition, we received proceeds of $216.1 million from redemptions of asset- and mortgage-backed securities and corporate bonds. For the year ended December 31, 2021, purchases of ETFs and non-redeemable preferred stock were $2.1 million and $22.7 million, respectively. Net cash used in investing activities included purchases of property and equipment of $5.9 million.

For the year ended December 31, 2020, net cash used in investing activities of $379.4 million reflected growth in our business operations and proceeds from our equity offering in August 2020 of $56.7 million. For the year ended December 31, 2020, these funds were used to purchase fixed-maturity securities, particularly corporate bonds and asset- and mortgage-backed securities of $474.8 million, and to a lesser extent, municipal bonds of $54.8 million and U.S. Treasuries of $1.1 million. During 2020, we received proceeds of $119.7 million from sales of fixed-maturity securities, largely corporate bonds in order to take advantage of favorable valuations. In addition, we received proceeds of $93.8 million from redemptions of asset- and mortgage-backed securities and corporate bonds. For the year ended December 31, 2020, purchases of ETFs and non-redeemable preferred stock were $27.2 million and $9.6 million, respectively. Net cash used in investing activities included net purchases of property and equipment of $27.8 million, primarily related to the construction of our corporate headquarters.

For the year ended December 31, 2021, net cash used in financing activities was $11.1 million and reflected dividends of $0.44 per common share, or $10.0 million in the aggregate. Proceeds received from our equity compensation plans were $1.0 million, offset by payroll taxes withheld and remitted on restricted stock awards of $2.1 million for the year ended December 31, 2021.

For the year ended December 31, 2020, net cash provided by financing activities was $76.1 million and reflected the proceeds from our equity offering of $56.7 million, previously discussed, and the drawdown of $25.7 million on our Credit Facility, which was used to fund construction of our headquarter facilities. During the year ended December 31, 2020, we paid dividends of $0.36 per common share, or $8.1 million in the aggregate. Proceeds received from our equity compensation plans were $3.6 million, offset by payroll taxes withheld and remitted on restricted stock awards of $1.8 million for the year ended December 31, 2020.

Reinsurance

We enter into reinsurance contracts to limit our exposure to potential large losses as well as to provide additional capacity for growth. Our reinsurance is primarily contracted under quota-share reinsurance treaties and excess of loss treaties. In quota-share reinsurance, the reinsurer agrees to assume a specified percentage of the ceding company's losses arising out of a defined class of business in exchange for a corresponding percentage of premiums, net of a ceding commission. In excess of loss reinsurance, the reinsurer agrees to assume all or a portion of the ceding company's losses, in excess of a specified amount. In excess of loss reinsurance, the premium payable to the reinsurer is negotiated by the parties based on their assessment of the amount of risk being ceded to the reinsurer because the reinsurer does not share proportionately in the ceding company's losses.

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For the year ended December 31, 2021, property insurance represented 14.9% of our gross written premiums. When we write property insurance, we buy reinsurance to significantly mitigate our risk. We use sophisticated computer models to analyze the risk of severe losses from weather-related events and earthquakes. We measure exposure to these catastrophe losses in terms of PML, which is an estimate of what level of loss we would expect to experience in a windstorm or earthquake event occurring once in every 100 or 250 years. We manage this PML by purchasing catastrophe reinsurance coverage. Effective June 1, 2021, we purchased catastrophe reinsurance coverage of $60.0 million per event in excess of our $15.0 million per event retention. Our property catastrophe reinsurance includes a reinstatement provision which requires us to pay reinstatement premiums after a loss has occurred in order to preserve coverage. Including the reinstatement provision, the maximum aggregate loss recovery limit is $120 million and is in addition to the per-occurrence coverage provided by our treaty coverages.

Reinsurance contracts do not relieve us from our obligations to policyholders. Failure of the reinsurer to honor its obligation could result in losses to us, and therefore, we established an allowance for credit risk based on historical analysis of credit losses for highly rated companies in the insurance industry. The Company evaluates the financial condition of its reinsurers and monitors concentration of credit risk arising from its exposure to individual reinsurers. As of December 31, 2021, Kinsale Insurance has only contracted with reinsurers with A.M. Best financial strength ratings of "A" (Excellent) or better. At December 31, 2021, the net reinsurance receivable, defined as the sum of paid and unpaid reinsurance recoverables, ceded unearned premiums less reinsurance payables, from five reinsurers represented 74.1% of the total balance. At December 31, 2021, we recorded an allowance for credit losses of $0.4 million related to our reinsurance balances.

Ratings

Kinsale Insurance has a financial strength rating of "A" (Excellent) from A.M. Best. A.M. Best assigns ratings to insurance companies, which currently range from "A++" (Superior) to "F" (In Liquidation). "A" (Excellent) is the third highest rating issued by A.M. Best. The "A" (Excellent) rating is assigned to insurers that have, in A.M. Best's opinion, an excellent ability to meet their ongoing obligations to policyholders. This rating is intended to provide an independent opinion of an insurer's ability to meet its obligation to policyholders and is not an evaluation directed at investors. See also "Risk Factors — Risks Related to Our Business and Our Industry — A decline in our financial strength rating may adversely affect the amount of business we write."

The financial strength ratings assigned by A.M. Best have an impact on the ability of the insurance companies to attract and retain agents and brokers and on the risk profiles of the submissions for insurance that the insurance companies receive. The "A" (Excellent) rating obtained by Kinsale Insurance is consistent with our business plan and allows us to actively pursue relationships with the agents and brokers identified in our marketing plan.

Contractual obligations and commitments

Reserves for losses and loss adjustment expenses

Reserves for losses and loss adjustment expenses represent our best estimate of the ultimate cost of settling reported and unreported claims and related expenses. The estimation of loss and loss expense reserves is based on various complex and subjective judgments. Actual losses and settlement expenses paid may deviate, perhaps substantially, from the reserve estimates reflected in our consolidated financial statements. Similarly, the timing for payment of our estimated losses is not fixed and is not determinable on an individual or aggregate basis due to the uncertainty inherent in the process of estimating such payments.

See Note 7 of the notes to the consolidated financial statements and "—Critical Accounting Estimates" for a discussion of estimates and assumptions related to the reserves for unpaid losses and loss adjustment expenses.

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Reinsurance balances recoverable on reserves for losses and loss adjustment expenses are reported separately as assets, instead of being netted with the related liabilities, since reinsurance does not discharge us of our liability to policyholders. The method for determining reinsurance recoverables for unpaid losses and loss adjustment expenses involves reviewing actuarial estimates of gross unpaid losses and loss adjustment expenses to determine the Company's ability to cede unpaid losses and loss adjustment expenses under the Company's existing reinsurance contracts.

See Note 8 to the consolidated financial statements and "—Critical Accounting Estimates" for a discussion of reinsurance recoverables.

Credit facility

As of December 31, 2021, we had $42.7 million outstanding under the Credit Facility, which has a maturity of May 28, 2024. Interest on the outstanding amounts is based on 3-month LIBOR plus a margin of 1.75%. Current borrowings under the Credit Facility were used to fund construction of our new headquarters, which was completed in 2020.

See Note 11 to the consolidated financial statements for further details regarding our Credit Facility.

Financial Condition

Stockholders' equity

At December 31, 2021, total stockholders' equity was $699.3 million and tangible stockholders' equity was $696.5 million, compared to total stockholders' equity of $576.2 million and tangible stockholders' equity of $573.4 million at December 31, 2020. The increase in both total stockholders' equity and tangible stockholders' equity in 2021 compared to 2020 was primarily due to profits generated during the period and net activity related to stock-based compensation plans. These increases were offset in part by a decrease in net unrealized gains on available-for-sale investments, net of taxes, and dividends declared during 2021. Tangible stockholders’ equity is a non-GAAP financial measure. See "—Reconciliation of Non-GAAP Financial Measures" for a reconciliation of stockholders' equity in accordance with GAAP to tangible stockholders' equity.

See Note 9 to the consolidated financial statements for further details regarding our stock-based compensation plans.

Dividend declarations

On February 11, 2021, the Company’s Board of Directors declared a cash dividend of $0.11 per share of common stock. This dividend was paid on March 12, 2021 to all stockholders of record on February 26, 2021.

On May 4, 2021, the Company’s Board of Directors declared a cash dividend of $0.11 per share of common stock. This dividend was paid on June 11, 2021 to all stockholders of record on May 27, 2021.

On August 11, 2021, the Company’s Board of Directors declared a cash dividend of $0.11 per share of common stock. This dividend was paid on September 13, 2021 to all stockholders of record on August 31, 2021.

On November 11, 2021, the Company’s Board of Directors declared a cash dividend of $0.11 per share of common stock. This dividend was paid on December 13, 2021 to all stockholders of record on November 29, 2021.

On February 14, 2022, the Company’s Board of Directors declared a cash dividend of $0.13 per share of common stock. This dividend is payable on March 14, 2022 to all stockholders of record on March 2, 2022.

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Investment portfolio

At December 31, 2021, our cash and invested assets of $1.7 billion consisted of fixed-maturity securities, cash and cash equivalents and equity securities. At December 31, 2021, the majority of the investment portfolio was comprised of fixed-maturity securities of $1.4 billion that were classified as available-for-sale. Available-for-sale investments are carried at fair value with unrealized gains and losses on those securities, net of applicable taxes, reported as a separate component of accumulated other comprehensive income. At December 31, 2021, we also held $172.6 million of equity securities, which were comprised of ETFs and non-redeemable preferred stock and $121.0 million of cash and cash equivalents. Our fixed-maturity securities, including cash equivalents, had a weighted average duration of 4.3 years and an average rating of "AA-" at December 31, 2021. Our investment portfolio, excluding cash equivalents, had a gross investment return of 2.5% as of December 31, 2021, compared to 2.9% as of December 31, 2020.

At December 31, 2021, the amortized cost and estimated fair value of our investments were as follows:

	December 31, 2021
	Amortized Cost		Estimated Fair Value		% of Total Fair Value
	($ in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	6,936	$	6,847	0.4	%
Obligations of states, municipalities and political subdivisions	216,375		228,045		14.6	%
Corporate and other securities	450,594		458,487		29.3	%
Asset-backed securities	299,810		301,775		19.3	%
Residential mortgage-backed securities	340,804		337,685		21.6	%
Commercial mortgage-backed securities	57,000		59,227		3.8	%
Total fixed maturities	1,371,519		1,392,066		89.0	%
Equity securities:
Exchange traded funds	70,151		123,389		7.9	%
Nonredeemable preferred stock	48,744		49,222		3.1	%
Total equity securities	118,895		172,611		11.0	%
Total investments	$	1,490,414	$	1,564,677	100.0	%

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The table below summarizes the credit quality of our fixed-maturity securities as of December 31, 2021, as rated by Standard & Poor’s Financial Services, LLC ("Standard & Poor's") or equivalent designation:

	December 31, 2021
Standard & Poor’s or Equivalent Designation	Estimated Fair Value		% of Total
	($ in thousands)
AAA	$	375,579	27.0	%
AA	523,739		37.6	%
A	234,547		16.9	%
BBB	196,740		14.1	%
Below BBB	61,461		4.4	%
Total	$	1,392,066	100.0	%

The amortized cost and estimated fair value of our available-for-sale investments in fixed-maturity securities summarized by contractual maturity as of December 31, 2021, were as follows:

	December 31, 2021
	Amortized Cost		Estimated Fair Value		% of Fair Value
	($ in thousands)
Due in one year or less	$	6,742	$	6,822	0.5	%
Due after one year through five years	185,273		189,497		13.6	%
Due after five years through ten years	226,707		232,197		16.7	%
Due after ten years	255,183		264,863		19.0	%
Asset-backed securities	299,810		301,775		21.7	%
Residential mortgage-backed securities	340,804		337,685		24.3	%
Commercial mortgage-backed securities	57,000		59,227		4.2	%
Total fixed maturities	$	1,371,519	$	1,392,066	100.0	%

Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties, and the lenders may have the right to put the securities back to the borrower.

Restricted investments

In order to conduct business in certain states, we are required to maintain letters of credit or assets on deposit to support state-mandated insurance regulatory requirements and to comply with certain third-party agreements. Assets held on deposit or in trust accounts are primarily in the form of cash or certain high-grade securities. The fair value of our restricted assets was $6.7 million and $6.9 million at December 31, 2021 and 2020, respectively.

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Reconciliation of Non-GAAP Financial Measures

Reconciliation of underwriting income

Underwriting income is a non-GAAP financial measure that we believe is useful in evaluating our underwriting performance without regard to investment income. Underwriting income is defined as net income excluding net investment income, the net change in the fair value of equity securities, net realized investment gains and losses, other income, other expenses and income tax expense. We use underwriting income as an internal performance measure in the management of our operations because we believe it gives us and users of our financial information useful insight into our results of operations and our underlying business performance. Underwriting income should not be viewed as a substitute for net income calculated in accordance with GAAP, and other companies may define underwriting income differently.

Net income for the years ended December 31, 2021 and 2020 reconciles to underwriting income as follows:

	Year Ended December 31,
($ in thousands)	2021		2020
Net income	$	152,659	$	88,419
Income tax expense	36,142		11,994
Income before taxes	188,801		100,413
Other expenses	1,663		1,375
Net investment income	(31,048)		(26,110)
Change in the fair value of equity securities	(22,812)		(16,855)
Net realized investment gains	(2,828)		(3,533)
Other income	(212)		(634)
Underwriting income	$	133,564	$	54,656

Reconciliation of net operating earnings

Net operating earnings is defined as net income excluding the effects of the net change in the fair value of equity securities, after taxes, and net realized investment gains and losses, after taxes. Management believes the exclusion of these items provides a more useful comparison of the Company's underlying business performance from period to period. Net operating earnings and percentages or calculations using net operating earnings (e.g., operating return on equity) are non-GAAP financial measures. Net operating earnings should not be viewed as a substitute for net income calculated in accordance with GAAP, and other companies may define net operating earnings differently.

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Net income for the years ended December 31, 2021 and 2020 reconciles to net operating earnings as follows:

	Year Ended December 31,
($ in thousands)	2021			2020
Net income	$	152,659		$	88,419
Adjustments:
Change in the fair value of equity securities, before taxes	(22,812)			(16,855)
Income tax expense (1)	4,791			3,540
Change in the fair value of equity securities, after taxes	(18,021)			(13,315)
Net realized investment gains, before taxes	(2,828)			(3,533)
Income tax expense (1)	594			742
Net realized investment gains, after taxes	(2,234)			(2,791)
Net operating earnings	$	132,404		$	72,313
Operating return on equity:
Average equity (2)	$	637,787		$	491,059
Return on equity (3)	23.9		%	18.0		%
Operating return on equity (4)	20.8		%	14.7		%

(1) Income taxes on adjustments to reconcile net income to net operating earnings use an effective tax rate of 21%.

(2) Computed by adding the total stockholders' equity as of the date indicated to the prior year-end total and dividing by two.

(3) Return on equity is net income expressed as a percentage of average beginning and ending stockholders’ equity during the period.

(4) Operating return on equity is net operating earnings expressed as a percentage of average beginning and ending stockholders’ equity during the period.

Reconciliation of tangible stockholders' equity

Tangible stockholders’ equity is a non-GAAP financial measure. We define tangible stockholders’ equity as stockholders’ equity less intangible assets, net of deferred taxes. Our definition of tangible stockholders’ equity may not be comparable to that of other companies, and it should not be viewed as a substitute for stockholders’ equity calculated in accordance with GAAP. We use tangible stockholders' equity internally to evaluate the strength of our balance sheet and to compare returns relative to this measure.

Stockholders' equity at December 31, 2021 and 2020 reconciles to tangible stockholders' equity as follows:

	December 31,
($ in thousands)	2021		2020
Stockholders' equity	$	699,335	$	576,238
Less: Intangible assets, net of deferred taxes	2,795		2,795
Tangible stockholders' equity	$	696,540	$	573,443

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Critical Accounting Estimates

We identified the accounting estimates which are critical to the understanding of our financial position and results of operations. Critical accounting estimates are defined as those estimates that are both important to the portrayal of our financial condition and results of operations and require us to exercise significant judgment. We use significant judgment concerning future results and developments in applying these critical accounting estimates and in preparing our consolidated financial statements. These judgments and estimates affect our reported amounts of assets, liabilities, revenues and expenses and the disclosure of our material contingent assets and liabilities, if any. Actual results may differ materially from the estimates and assumptions used in preparing the consolidated financial statements. We evaluate our estimates regularly using information that we believe to be relevant. For a detailed discussion of our accounting policies, see the "Notes to Consolidated Financial Statements" included in this Annual Report on Form 10-K.

Reserves for unpaid losses and loss adjustment expenses

The reserves for unpaid losses and loss adjustment expenses are the largest and most complex estimate in our consolidated balance sheet. The reserves for unpaid losses and loss adjustment expenses represent our estimated ultimate cost of all unreported and reported but unpaid insured claims and the cost to adjust these losses that have occurred as of or before the consolidated balance sheet date. As a relatively new company, our historical loss experience is limited. We estimate the reserves using individual case-basis valuations of reported claims and statistical analyses. Those estimates are based on our historical information, industry information and our estimates of future trends in variable factors such as loss severity, loss frequency and other factors such as inflation. We regularly review our estimates and adjust them as necessary as experience develops or as new information becomes known to us. Such adjustments are included in current operations. Additionally, during the loss settlement period, it often becomes necessary to refine and adjust the estimates of liability on a claim either upward or downward. Even after such adjustments, ultimate liability may exceed or be less than the revised estimates. Accordingly, the ultimate settlement of losses and the related loss adjustment expenses may vary significantly from the estimate included in our consolidated financial statements.

We categorize our reserves for unpaid losses and loss adjustment expenses into two types: case reserves and reserves for incurred but not reported losses ("IBNR"). Our gross reserves for losses and loss adjustment expenses at December 31, 2021 were $881.3 million, and of this amount, 84.8% related to IBNR. Our reserves for losses and loss adjustment expenses, net of reinsurance, at December 31, 2021 were $763.8 million, and of this amount, 85.9% related to IBNR. A 5% change in net IBNR reserves would equate to a $32.8 million change in the reserve for losses and loss adjustment expenses at such date, as well as a $25.9 million change in net income, a 3.7% change in both stockholders' equity and tangible stockholders' equity, in each case at or for the year ended December 31, 2021.

The following tables summarize our reserves for unpaid losses and loss adjustment expenses, on a gross basis and net of reinsurance, at December 31, 2021 and 2020:

	December 31, 2021
	Gross		% of Total		Net		% of Total
	($ in thousands)
Case reserves	$	133,748	15.2	%	$	107,340	14.1	%
IBNR	747,596		84.8	%	656,443		85.9	%
Total	$	881,344	100.0	%	$	763,783	100.0	%

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	December 31, 2020
	Gross		% of Total		Net		% of Total
	($ in thousands)
Case reserves	$	100,628	15.8	%	$	83,638	15.1	%
IBNR	535,385		84.2	%	468,645		84.9	%
Total	$	636,013	100.0	%	$	552,283	100.0	%

Case reserves are established for individual claims that have been reported to us. We are notified of losses by our insureds or their brokers. Based on the information provided, we establish case reserves by estimating the ultimate losses from the claim, including defense costs associated with the ultimate settlement of the claim. Our claims department personnel use their knowledge of the specific claim along with advice from internal and external experts, including underwriters and legal counsel, to estimate the expected ultimate losses. During the life cycle of a particular claim, as more information becomes available, we may revise our estimate of the ultimate value of the claim either upward or downward. The amount of the individual claim reserve is based on the most recent information available.

Methodology

IBNR reserves are determined using actuarial methods to estimate losses that have occurred but have not yet been reported to us. We principally use the incurred Bornhuetter-Ferguson actuarial method ("BF method") to arrive at our loss reserve estimates for each line of business. This method estimates the reserves based on our initial expected loss ratio and expected reporting patterns for losses. Because we have a limited number of years of loss experience compared to the period over which we expect losses to be reported, we use industry and peer-group data, in addition to our own data, as a basis for selecting our expected reporting patterns. Since the incurred BF method does not directly use reported losses in the estimation of IBNR, it is less sensitive to our level of reported losses than other actuarial methods. This method avoids some of the distortions that could result from a large loss development factor being applied to a small base of reported losses to calculate ultimate losses. However, this method will react more slowly than some other loss development methods if reported loss experience deviates significantly from our expected losses.

Our Reserve Committee consists of our Chief Actuary and other select members of senior management. The Reserve Committee meets quarterly to review the actuarial recommendations made by the Chief Actuary. In establishing the actuarial recommendation for the reserves for losses and loss adjustment expenses, our actuary estimates an initial expected ultimate loss ratio for our statutory lines of business by accident year. Input from our underwriting and claims departments, including premium pricing assumptions and historical experience, is considered by our actuary in estimating the initial expected loss ratios. During each quarter, the Reserve Committee reviews the emergence of actual losses relative to expectations by line of business to assess whether the assumptions used in the reserving process continue to form a reasonable basis for the projection of liabilities for those product lines. Our reserving methodology uses a loss reserving model that calculates a point estimate for our ultimate losses. Although we believe that our assumptions and methodology are reasonable, our ultimate payments may vary, potentially materially, from the estimates we have made.

In addition, we retain an independent actuary annually to review our reserve levels. The independent actuary is not involved in the establishment and recording of our loss reserve. The actuarial consulting firm prepares its own estimate of our reserves for loss and loss adjustment expenses, and we compare their estimate to the reserves for losses and loss adjustment expenses reviewed and approved by the Reserve Committee in order to gain additional comfort on the adequacy of those reserves.

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While we believe that loss reserves at December 31, 2021 are adequate, new information, events, or circumstances may result in ultimate losses that are materially greater or less than our estimates. As previously noted, there are many factors that may cause reserves to increase or decrease, particularly those related to catastrophe losses and long-tailed lines of business.

Key assumptions

Expected loss ratios are a key assumption in estimates of ultimate losses for business at an early stage of development. A higher expected loss ratio results in a higher ultimate loss estimate, and vice versa. Assumed loss development patterns are another significant assumption in estimating loss reserves. Accelerating a loss development pattern results in lower ultimate losses, as the estimated proportion of losses already incurred would be higher. The uncertainty in estimating the loss development patterns is generally greater for a company with a relatively limited operating history, therefore, we rely on industry benchmarks to a certain extent when establishing loss reserve estimates.

Each of the impacts described below is estimated individually, without consideration for any correlation among key indicators or among lines of business. Therefore, it would be inappropriate to take each of the amounts described below and add them together in an attempt to estimate volatility for our reserves in total. For any one reserving line of business, the estimated variation in reserves due to changes in key indicators is a reasonable estimate of possible variation that may occur in the future. The variation discussed is not meant to be a worst-case scenario and, therefore, it is possible that future variation may be greater than the amounts shown below.

The impact of reasonably likely changes in the two key assumptions used to estimate net loss reserves at December 31, 2021 is as follows:

Development Pattern	Expected Loss Ratio
Property	10% lower		Unchanged		10% higher
	($ in millions)
2 months slower	$	7.6	$	10.5	$	13.4
Unchanged	(1.7)		—		1.7
2 months faster	(5.8)		(4.7)		(3.6)
Casualty Occurrence	5% lower		Unchanged		5% higher
6 months slower	$	22.9	$	62.4	$	101.9
Unchanged	(35.0)		—		35.0
6 months faster	(90.4)		(59.6)		(28.9)
Casualty Claims-Made	5% lower		Unchanged		5% higher
6 months slower	$	14.6	$	30.0	$	45.3
Unchanged	(12.7)		—		12.7
6 months faster	(38.0)		(27.7)		(17.4)

Reserve development

The amount by which estimated losses differ from those originally reported for a period is known as "development." Development is unfavorable when the losses ultimately settle for more than the amount reserved or subsequent estimates indicate a basis for reserve increases on unresolved claims. Development is favorable when losses ultimately settle for less than the amount reserved or subsequent estimates indicate a basis for reducing loss reserves

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on unresolved claims. We reflect favorable or unfavorable development of loss reserves in the results of operations in the period the estimates are changed. Refer to Note 7 to the consolidated financial statements for discussion on our reserve development for the years ended December 31, 2021 and 2020.

Fair value measurements

Like other accounting estimates, fair value measurements may be based on subjective information and generally involve uncertainty and judgment. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Market participants are assumed to be independent, knowledgeable, able and willing to transact an exchange and not acting under duress. Fair value hierarchy disclosures are based on the quality of inputs used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). Adjustments to transaction prices or quoted market prices may be required in illiquid or disorderly markets in order to estimate fair value. The three levels of the fair value hierarchy are described below:

Level 1 - Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities traded in active markets.

Level 2 - Inputs to the valuation methodology include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and market-corroborated inputs.

Level 3 - Inputs to the valuation methodology are unobservable for the asset or liability and are significant to the fair value measurement.

When the inputs used to measure fair value fall within different levels of the hierarchy, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement in its entirety. Thus, a Level 3 fair value measurement may include inputs that are observable (Level 1 and 2) and unobservable (Level 3). The use of valuation methodologies may require a significant amount of judgment. During periods of financial market disruption, including periods of rapidly widening credit spreads or illiquidity, it may be difficult to value certain of our securities if trading becomes less frequent or market data becomes less observable. We review the fair value hierarchy classifications on a quarterly basis. Changes in the observability of valuation inputs may result in a reclassification for certain financial assets and liabilities.

Fair values of our investment portfolio are estimated using unadjusted prices obtained by our investment accounting vendor from nationally recognized third-party pricing services, where available. For securities where we are unable to obtain fair values from a pricing service or broker, fair values are estimated using information obtained from our investment accounting vendor. We perform several procedures to ascertain the reasonableness of investment values included in the consolidated financial statements at December 31, 2021, including (1) obtaining and reviewing the internal control report from our investment accounting vendor that obtain fair values from third party pricing services, (2) discussing with our investment accounting vendor their process for reviewing and validating pricing obtained from outside pricing services and (3) reviewing the security pricing received from our investment accounting vendor and monitoring changes in unrealized gains and losses at the individual security level.

Investment securities are subject to fluctuations in fair value due to changes in issuer-specific circumstances, such as credit rating, and changes in industry-specific circumstances, such as movements in credit spreads based on the market’s perception of industry risks. In addition, fixed maturities are subject to fluctuations in fair value due to changes in interest rates. As a result of these potential fluctuations, it is possible to have significant unrealized gains or losses on a security.

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Reinsurance

We enter into reinsurance contracts to limit our exposure to potential large losses and to provide additional capacity for growth. Reinsurance refers to an arrangement in which a company called a reinsurer agrees in a contract (often referred to as a treaty) to assume specified risks written by an insurance company (known as a ceding company) by paying the insurance company all or a portion of the insurance company's losses arising under specified classes of insurance policies in return for a share in premiums.

Reinsurance recoverables recorded on insurance losses ceded under reinsurance contracts are subject to judgments and uncertainties similar to those involved in estimating gross loss reserves. In addition to these uncertainties, our reinsurance recoverables may prove uncollectible if the reinsurers are unable or unwilling to perform under the reinsurance contracts. In establishing our reinsurance allowance for credit losses, we evaluate the financial condition of our reinsurers and monitor concentration of credit risk arising from our exposure to individual reinsurers. To determine if an allowance is necessary, we consider, among other factors, published financial information, reports from rating agencies, payment history, collateral held and our legal right to offset balances recoverable against balances we may owe. Our reinsurance allowance for credit losses is subject to uncertainty and volatility due to the time lag involved in collecting amounts recoverable from reinsurers. Over the period of time that losses occur, reinsurers are billed and amounts are ultimately collected, economic conditions, as well as the operational and financial performance of particular reinsurers may change and these changes may affect the reinsurers’ willingness and ability to meet their contractual obligations to us. It is difficult to fully evaluate the impact of major catastrophic events on the financial stability of reinsurers, as well as the access to capital that reinsurers may have when such events occur. The ceding of insurance does not legally discharge us from our primary liability for the full amount of the policies, and we will be required to pay the loss and bear the collection risk if any reinsurer fails to meet its obligations under the reinsurance contracts. We target reinsurers with A.M. Best financial strength ratings of "A" (Excellent) or better. Based on our evaluation of the factors discussed above, the allowance for credit losses related to reinsurance balances was $0.4 million at December 31, 2021.

Recent Accounting Pronouncements

Refer to Note 1 – "Summary of significant accounting policies" of the Notes to Consolidated Financial Statements for further discussion.

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Item 7A. Quantitative and Qualitative Disclosures About Market Risk

Market risk is the risk of economic losses due to adverse changes in the estimated fair value of a financial instrument as the result of changes in interest rates, equity prices, foreign currency exchange rates and commodity prices. The primary components of market risk affecting us are credit risk, interest rate risk, and equity rate risk. We do not have significant exposure to foreign currency exchange rate risk or commodity risk.

Credit risk

Credit risk is the potential loss resulting from adverse changes in an issuer's ability to repay its debt obligations. We have exposure to credit risk as a holder of fixed-maturity investments. Our risk management strategy and investment policy are designed to primarily invest in debt instruments of high credit quality issuers and to limit the amount of credit exposure with respect to particular ratings categories and any one issuer. At December 31, 2021, our fixed-maturity portfolio, including cash equivalents, had an average rating of "AA-." Additionally, at December 31, 2021, approximately 81.5% of our fixed-maturity portfolio, excluding cash equivalents, was rated "A-" or better by at least one nationally recognized rating organization. Our policy is to invest in investment grade securities and to minimize investments in fixed maturities that are unrated or rated below investment grade. At December 31, 2021, approximately 4.4% of our fixed-maturity portfolio, excluding cash equivalents, was unrated or rated below investment grade. We monitor the financial condition of all of the issuers of fixed-maturity securities in our portfolio.

In addition, we are subject to credit risk with respect to our third-party reinsurers. Although our third-party reinsurers are obligated to reimburse us to the extent we cede risk to them, we are ultimately liable to our policyholders on all risks we have ceded. As a result, reinsurance contracts do not limit our ultimate obligations to pay claims covered under the insurance policies we issue and we might not collect amounts recoverable from our reinsurers. We address this credit risk by selecting reinsurers that have an A.M. Best rating of "A" (Excellent) or better at the time we enter into the agreement and by performing, along with our reinsurance broker, periodic credit reviews of our reinsurers. If one of our reinsurers suffers a credit downgrade, we may consider various options to lessen the risk of asset impairment, including commutation, novation and letters of credit.

Interest rate risk

Interest rate risk is the risk that we will incur economic losses due to adverse changes in interest rates. The primary market risk to the investment portfolio is interest rate risk associated with investments in fixed-maturity securities and non-redeemable preferred stock. Fluctuations in interest rates have a direct effect on the market valuation of these securities. When market interest rates rise, the fair value of our fixed-maturity securities and non-redeemable preferred stock decreases. Conversely, as interest rates fall, the fair value of our fixed-maturity securities and non-redeemable preferred stock increases. We manage this interest rate risk by investing in securities with varied maturity dates and by managing the duration of our investment portfolio to the duration of our reserves. Expressed in years, duration is the weighted average payment period of cash flows, where the weighting is based on the present value of the cash flows. We set duration targets for our fixed-maturity investment portfolios after consideration of the estimated duration of our liabilities and other factors. The effective weighted-average duration of the portfolio, including cash equivalents, was 4.3 years as of December 31, 2021.

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We had fixed-maturity securities and non-redeemable preferred stock with a fair value of $1.4 billion at December 31, 2021 and $1.1 billion at December 31, 2020 that were subject to interest rate risk. The table below illustrates the sensitivity of the fair value of our fixed-maturity securities and non-redeemable preferred stock to selected hypothetical changes in interest rates as of December 31, 2021 and 2020.

	December 31, 2021						December 31, 2020
	Estimated Fair Value		Estimated Change in Fair Value		Estimated % Increase (Decrease) in Fair Value		Estimated Fair Value		Estimated Change in Fair Value		Estimated % Increase (Decrease) in Fair Value
	($ in thousands)
200 basis points increase	$	1,308,401	$	(132,887)	(9.2)	%	$	1,009,976	$	(103,436)	(9.3)	%
100 basis points increase	$	1,373,259	$	(68,029)	(4.7)	%	$	1,060,970	$	(52,442)	(4.7)	%
No change	$	1,441,288	$	—	—	%	$	1,113,412	$	—	—	%
100 basis points decrease	$	1,500,093	$	58,805	4.1	%	$	1,146,035	$	32,623	2.9	%
200 basis points decrease	$	1,531,801	$	90,513	6.3	%	$	1,158,171	$	44,759	4.0	%

Changes in interest rates will have an immediate effect on comprehensive income and stockholders’ equity but will not ordinarily have an immediate effect on net income. Actual results may differ from the hypothetical change in market rates assumed in this disclosure. This sensitivity analysis does not reflect the results of any action that we may take to mitigate such hypothetical losses in fair value.

Equity risk

Equity risk represents the potential economic losses due to adverse changes in equity security prices. A portion of our portfolio is invested in ETF securities, which have historically produced higher long-term returns relative to fixed-maturity investments. As of December 31, 2021, approximately 7.3% of the fair value of our investment portfolio (including cash and cash equivalents) was invested in ETF securities. We manage equity price risk of our equity portfolio primarily through asset allocation techniques.

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Item 8. Financial Statements and Supplementary Data

INDEX TO FINANCIAL STATEMENTS

	Page
Audited Consolidated Financial Statements
Management's Report on Internal Control Over Financial Reporting	64
Reports of Independent Registered Public Accounting Firm	64
Consolidated Balance Sheets as of December 31, 2021 and 2020	68
Consolidated Statements of Income and Comprehensive Income for the Years Ended December 31, 2021, 2020 and 2019	69
Consolidated Statements of Changes in Stockholders' Equity for the Years Ended December 31, 2021, 2020 and 2019	70
Consolidated Statements of Cash Flows for the Years Ended December 31, 2021, 2020 and 2019	71
Notes to Consolidated Financial Statements	72
Schedule I - Summary of Investments - Other than Investments in Related Parties	98
Schedule II - Condensed Financial Information of Registrant - Parent Company Only	99
Schedule V - Valuation and Qualifying Accounts	104

Schedules other than those listed are omitted for the reason that they are not required, are not applicable or that equivalent information has been included in the financial statements or notes thereto or elsewhere herein.

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Management's Report on Internal Control Over Financial Reporting:

Management is responsible for establishing and maintaining adequate internal control over financial reporting, as defined in Rule 13a-15(f) under the Securities Exchange Act of 1934. Our internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.

Management does not expect that its internal control over financial reporting will prevent all errors and all fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Internal control over financial reporting is a process that involves human diligence and compliance and is subject to lapses in judgment and breakdowns resulting from human failures. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, have been detected. The design of any system of internal control over financial reporting also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions.

Management evaluated the effectiveness of our internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control-Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Management reviewed the results of its assessment with the Audit Committee of our Board of Directors. Based on our evaluation, we have concluded that we maintained effective internal control over financial reporting as of December 31, 2021.

KPMG LLP, our independent registered public accounting firm, has issued an opinion on the effectiveness of the Company's internal control over financial reporting, as stated in their report which is included herein.

Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors

Kinsale Capital Group, Inc.:

Opinion on Internal Control Over Financial Reporting

We have audited Kinsale Capital Group, Inc. and subsidiaries' (the Company) internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Company as of December 31, 2021 and 2020, the related consolidated statements of income and comprehensive income, changes in stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2021, and the related notes and financial statement schedules I, II, and V (collectively, the consolidated financial statements), and our report dated February 25, 2022 expressed an unqualified opinion on those consolidated financial statements.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management's Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the

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U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ KPMG LLP

Richmond, Virginia

February 25, 2022

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Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors

Kinsale Capital Group, Inc.:

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheets of Kinsale Capital Group, Inc. and subsidiaries (the Company) as of December 31, 2021 and 2020, the related consolidated statements of income and comprehensive income, changes in stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2021, and the related notes and financial statement schedules I, II, and V (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2021 and 2020, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2021, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated February 25, 2022 expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of a critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Reserves for unpaid losses and loss adjustment expenses

As described in Notes 1 and 7 to the consolidated financial statements, the Company records reserves for unpaid losses and loss adjustment expenses (reserves), which represent the Company’s best estimate of ultimate unpaid cost of all reported and unreported losses and loss adjustment expenses incurred prior to the financial statement date. This estimate is based on an actuarial method that uses the Company’s initial expected loss ratios, expected reporting patterns for losses based on historical Company and industry data, and the Company’s actual reported losses and loss adjustment expenses. All estimates are regularly reviewed and, as experience develops and new information becomes known, the reserves are adjusted as necessary. As of December 31, 2021, the Company recorded $881.3 million of reserves for unpaid losses and loss adjustment expenses.

We identified the evaluation of the estimation of reserves as a critical audit matter. The evaluation of the Company’s best estimate of reserves required complex auditor judgment due to the inherent uncertainty in the ultimate amount and timing of claim payments and required specialized actuarial skills and knowledge. In addition, the evaluation of

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the ultimate expected loss assumptions required subjective auditor judgment due to the Company’s limited historical claims data and, therefore, also involved a consideration of industry data.

The following are the primary procedures we performed to address this critical audit matter. We evaluated the design and tested the operating effectiveness of certain internal controls related to the Company’s reserving process. These included internal controls over the actuarial method and certain assumptions used to derive the Company’s best estimate of reserves and the comparison of the Company’s best estimate to the annual independent actuarial reserve estimate performed by an external consulting actuary. We also involved actuarial professionals with specialized skills and knowledge, who assisted in:

•comparing the actuarial methodology the Company used to determine the reserves to generally accepted actuarial standards and practices

•performing independent estimates of reserves for each line of business, using a combination of the Company’s underlying historical claims data and industry data

•developing an independent range of reserves using both the Company’s underlying historical claims data and industry data with respect to future claim reporting amounts and payment patterns and prior year independent selected loss rates

•assessing the position of the Company’s recorded reserves within this independent range in the current year and comparing to its relative position in the prior year.

/s/ KPMG LLP

We have served as the Company’s auditor since 2009.

Richmond, Virginia

February 25, 2022

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KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Consolidated Balance Sheets

	December 31,
	2021		2020
	(in thousands, except share and per share data)
Assets
Fixed-maturity securities available-for-sale, at fair value (amortized cost: $1,371,519 – 2021; $1,031,817 – 2020)	$	1,392,066	$	1,081,800
Equity securities, at fair value (cost: $118,895 – 2021; $98,758 – 2020)	172,611		129,662
Total investments	1,564,677		1,211,462
Cash and cash equivalents	121,040		77,093
Investment income due and accrued	7,658		6,637
Premiums receivable, net	71,004		48,641
Reinsurance recoverables, net	122,970		93,215
Ceded unearned premiums	33,679		24,265
Deferred policy acquisition costs, net of ceding commissions	41,968		31,912
Intangible assets	3,538		3,538
Deferred income tax asset, net	2,109		—
Other assets	57,012		50,133
Total assets	$	2,025,655	$	1,546,896
Liabilities and Stockholders' Equity
Reserves for unpaid losses and loss adjustment expenses	$	881,344	$	636,013
Unearned premiums	347,730		260,986
Payable to reinsurers	16,112		12,672
Accounts payable and accrued expenses	23,250		13,651
Credit facility	42,696		42,570
Deferred income tax liability, net	—		4,648
Other liabilities	15,188		118
Total liabilities	1,326,320		970,658
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.01 par value, 400,000,000 shares authorized, 22,834,377 shares issued and outstanding at December 31, 2021; 22,757,251 shares issued and outstanding at December 31, 2020	228		228
Additional paid-in capital	295,040		291,315
Retained earnings	385,942		243,315
Accumulated other comprehensive income	18,125		41,380
Stockholders’ equity	699,335		576,238
Total liabilities and stockholders’ equity	$	2,025,655	$	1,546,896

See accompanying notes to consolidated financial statements.

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KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Consolidated Statements of Income and Comprehensive Income

	Year Ended December 31,
	2021		2020		2019
	(in thousands, except per share data)
Revenues:
Gross written premiums	$	764,373	$	552,814	$	389,694
Ceded written premiums	(104,164)		(74,595)		(47,633)
Net written premiums	660,209		478,219		342,061
Change in unearned premiums	(77,330)		(65,465)		(59,080)
Net earned premiums	582,879		412,754		282,981
Net investment income	31,048		26,110		20,133
Change in fair value of equity securities	22,812		16,855		12,389
Net realized investment gains	2,828		3,533		359
Other income	212		634		26
Total revenues	639,779		459,886		315,888
Expenses:
Losses and loss adjustment expenses	324,415		263,802		169,563
Underwriting, acquisition and insurance expenses	124,900		94,296		70,217
Other expenses	1,663		1,375		57
Total expenses	450,978		359,473		239,837
Income before income taxes	188,801		100,413		76,051
Income tax expense	36,142		11,994		12,735
Net income	152,659		88,419		63,316
Other comprehensive (loss) income:
Change in unrealized (losses) gains on available-for-sale investments, net of taxes	(23,255)		27,862		14,774
Total comprehensive income	$	129,404	$	116,281	$	78,090

Earnings per share:
Basic	$	6.73	$	3.96	$	2.94
Diluted	$	6.62	$	3.87	$	2.86
Weighted-average shares outstanding:
Basic	22,693		22,319		21,528
Diluted	23,062		22,852		22,136

See accompanying notes to consolidated financial statements.

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KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Consolidated Statements of Changes in Stockholders' Equity

		Shares of Common Stock	Common Stock		Additional Paid-in Capital		Retained Earnings		Accumu- lated  Other Compre- hensive Income (Loss)		Total Stockholders' Equity
	(in thousands, except for per share data)
Balance at December 31, 2018		21,242	$	212	$	158,485	$	106,545	$	(1,256)	$	263,986
Issuance of common stock, net of issuance costs		742	8		65,871		—		—		65,879
Issuance of common stock under stock-based compensation plan		229	2		2,748		—		—		2,750
Stock-based compensation expense		—	—		2,742		—		—		2,742
Restricted shares withheld for taxes		(7)	—		(617)		—		—		(617)
Dividends declared ($0.32 per share)		—	—		—		(6,950)		—		(6,950)
Other comprehensive income, net of income taxes		—	—		—		—		14,774		14,774
Net income		—	—		—		63,316		—		63,316
Balance at December 31, 2019		22,206	222		229,229		162,911		13,518		405,880
Adoption of new accounting standard for credit losses, net		—	—		—		78		—		78
Issuance of common stock, net of issuance costs		311	3		56,695		—		—		56,698
Issuance of common stock under stock-based compensation plan		252	3		3,619		—		—		3,622
Stock-based compensation expense		—	—		3,575		—		—		3,575
Restricted shares withheld for taxes		(12)	—		(1,803)		—		—		(1,803)
Dividends declared ($0.36 per share)		—	—		—		(8,093)		—		(8,093)
Other comprehensive income, net of income taxes		—	—		—		—		27,862		27,862
Net income		—	—		—		88,419		—		88,419
Balance at December 31, 2020		22,757	228		291,315		243,315		41,380		576,238
Issuance of common stock under stock-based compensation plan		90	—		982		—		—		982
Stock-based compensation expense		—	—		4,844		—		—		4,844
Restricted shares withheld for taxes		(13)	—		(2,101)		—		—		(2,101)
Dividends declared ($0.44 per share)		—	—		—		(10,032)		—		(10,032)
Other comprehensive loss, net of income taxes		—	—		—		—		(23,255)		(23,255)
Net income		—	—		—		152,659		—		152,659
Balance at December 31, 2021		22,834	$	228	$	295,040	$	385,942	$	18,125	$	699,335

See accompanying notes to consolidated financial statements.

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KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Consolidated Statements of Cash Flows

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Operating activities:
Net income	$	152,659	$	88,419	$	63,316
Adjustments to reconcile net income to net cash provided by operating activities:
Net unrealized gains on equity securities	(22,812)		(16,855)		(12,389)
Net realized investment gains	(2,828)		(3,533)		(359)
Deferred tax (benefit) expense	(576)		616		(125)
Depreciation and amortization	2,308		1,574		682
Stock compensation expense	4,844		3,575		2,742
Change in operating assets and liabilities:
Investment income due and accrued	(1,021)		(1,894)		(960)
Premiums receivable, net	(22,363)		(14,158)		(10,230)
Reserves for unpaid loss and loss adjustment expenses	245,331		175,955		90,906
Unearned premiums	86,744		73,612		59,124
Reinsurance balances, net	(35,729)		(23,267)		(13,246)
Deferred policy acquisition costs	(10,056)		(8,348)		(8,763)
Income taxes (recoverable) payable	(3,882)		(1,611)		1,221
Accounts payable and accrued expenses	10,102		3,087		2,972
Other	4,321		2,802		3,466
Net cash provided by operating activities	407,042		279,974		178,357
Investing activities:
Purchase of property and equipment	(5,920)		(32,875)		(19,622)
Sale of property and equipment	—		5,077		—
Purchases – fixed-maturity securities	(654,922)		(530,732)		(306,203)
Purchases – equity securities	(24,867)		(36,822)		(29,887)
Sales – fixed-maturity securities	113,006		119,749		35,526
Sales – equity securities	4,617		2,367		21,459
Maturities and calls – fixed-maturity securities	216,131		93,803		67,934
Net cash used in investing activities	(351,955)		(379,433)		(230,793)
Financing activities:
Proceeds from issuance of common stock, net of issuance costs	—		56,698		65,879
Proceeds from credit facility	—		25,700		17,300
Debt issuance costs	—		—		(628)
Payroll taxes withheld and remitted on share-based payments	(2,101)		(1,803)		(617)
Common stock issued, stock options exercised	982		3,622		2,750
Dividends paid	(10,021)		(8,073)		(6,929)
Net cash (used in) provided by financing activities	(11,140)		76,144		77,755
Net change in cash and cash equivalents	43,947		(23,315)		25,319
Cash and cash equivalents at beginning of year	77,093		100,408		75,089
Cash and cash equivalents at end of year	$	121,040	$	77,093	$	100,408

See accompanying notes to consolidated financial statements.

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Kinsale Capital Group, Inc. and subsidiaries

Notes to consolidated financial statements

Description of business

Kinsale Capital Group, Inc., an insurance holding company, is a Delaware corporation that was formed in 2009 and conducts its operations through its wholly-owned subsidiaries (referred to as "Kinsale" or, with its subsidiaries, the "Company"). Kinsale Capital Group, Inc. writes excess and surplus lines insurance on a non-admitted basis principally through its insurance subsidiary, Kinsale Insurance Company ("Kinsale Insurance"), which is authorized to write business in 50 states, the District of Columbia, the Commonwealth of Puerto Rico and the U.S. Virgin Islands. Kinsale Capital Group, Inc. also markets certain products through its subsidiary, Aspera Insurance Services, Inc. ("Aspera"), an insurance broker.

1.Summary of significant accounting policies

Principles of consolidation

The accompanying consolidated financial statements include the accounts of Kinsale Capital Group, Inc. and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. Certain prior year amounts have been reclassified to conform to the current year's presentation.

Use of estimates

The preparation of consolidated financial statements in conformity with U.S. generally accepted accounting principles ("U.S. GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities, if any, at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Management periodically reviews its estimates and assumptions. These reviews include evaluating the adequacy of reserves for unpaid losses and loss adjustment expenses, allowance for credit losses and uncollectible reinsurance, fair value of investments, as well as evaluating the investment portfolio for credit impairments.

Cash and cash equivalents

The Company considers all highly liquid investments with an original maturity of three months or less to be cash equivalents.

Short-term investments

Short-term investments are carried at cost, which approximates fair value. Short-term investments have maturities greater than three months but less than one year at the date of purchase. There were no short-term investments at December 31, 2021 or December 31, 2020.

Fixed-maturity and equity securities

Fixed-maturity securities are classified as available-for-sale and reported at fair value. Unrealized gains and losses on these securities are excluded from earnings but are recorded as a separate component of other comprehensive income and stockholders' equity, net of deferred income taxes.

Equity securities are reported at fair value. Changes in unrealized gains and losses in fair value of these investments are recognized in net income.

The Company regularly reviews all its available-for-sale investments with unrealized losses to assess whether the decline in the fair value is deemed to be a credit loss. See Note 2 for further discussion regarding the determination of credit losses.

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Interest on fixed-maturity securities is credited to earnings as it accrues. Premiums and discounts are amortized or accreted using the effective interest method over the lives of the related fixed maturities, or to the earliest call date for securities purchased at a premium. This method includes an adjustment for estimated principal prepayments, if any, on asset- and mortgage-backed securities. To the extent that the estimated lives of such securities change as a result of changes in estimated prepayment rates, the adjustments are included in net investment income using the retrospective method.

Dividends on equity securities are included in earnings on the ex-dividend date.

Realized gains and losses on disposition of investments are based on specific identification of the investments sold on the trade date.

Reinsurance

Reinsurance premiums, commissions, and ceded unearned premiums on reinsured business are accounted for on a basis consistent with that used in accounting for the original policies issued and the terms of the reinsurance contracts. The Company receives ceding commissions in accordance with certain reinsurance treaties. The ceding commissions are capitalized and amortized as a reduction of underwriting, acquisition and insurance expenses.

Reinsurance recoverables represent paid losses and loss adjustment expenses and reserves for unpaid losses and loss adjustment expenses ceded to reinsurers that are subject to reimbursement under reinsurance treaties. The method for determining reinsurance recoverables for unpaid losses and loss adjustment expenses involves reviewing actuarial estimates of gross unpaid losses and loss adjustment expenses to determine the Company's ability to cede unpaid losses and loss adjustment expenses under the Company's existing reinsurance contracts. This method is continually reviewed and updated and any resulting adjustments are reflected in earnings in the period identified. See Note 8 for a further discussion of the Company's reinsurance program.

Premiums receivable, net

Premiums receivable balances are carried at face value, net of any allowance for credit losses. The allowance for credit losses represents an estimate of amounts considered uncollectible based on the Company’s assessment of the collectability of receivables that are past due. The Company recorded an allowance for credit losses of $3.4 million and $3.1 million at December 31, 2021 and 2020, respectively, and believes that all other amounts due are collectible.

Deferred policy acquisition costs, net of ceding commissions

The Company defers commissions, net of ceding commissions, and certain other costs that are directly related to the successful acquisition of insurance contracts. All eligible costs are capitalized and charged to expense in proportion to premium earned over the estimated policy life. To the extent that unearned premiums on existing policies are not adequate to cover the related costs and expenses, referred to as a premium deficiency, deferred policy acquisition costs are charged to earnings. The Company considers anticipated investment income in determining whether a premium deficiency exists.

Property and equipment, net

Property and equipment are stated at cost less accumulated depreciation. Depreciation of property and equipment is calculated using the straight-line method over the estimated useful lives of the assets. The estimated useful lives range from 39 years for the building and parking deck, 15 to 20 years for land improvements, 7 to 10 years for furniture and equipment, and 3 to 7 years for electronic data processing hardware and software.

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Property and equipment are included in "other assets" in the accompanying consolidated balance sheets and consists of the following:

	December 31,
	2021		2020
	(in thousands)
Building	$	33,101	$	31,675
Parking deck	5,072		5,072
Land	3,068		3,068
Equipment	3,143		2,770
Software	7,849		4,815
Furniture and fixtures	2,158		1,731
Land improvements	474		317
	54,865		49,448
Accumulated depreciation	(5,570)		(3,262)
Total property and equipment, net	$	49,295	$	46,186

During 2020, the Company sold a portion of both the land and parking deck for approximately $6.5 million to a real estate developer for the development of an apartment building. At December 31, 2020, the Company received $5.0 million of the proceeds from the sale and is expected to receive the remaining $1.5 million upon completion of the apartment building. This receivable is included in "other assets" on the accompanying consolidated balance sheet.

Intangible assets

Intangible assets are recorded at fair value at the date of acquisition. The Company's intangible assets are comprised solely of indefinite-lived intangible assets, which arose from regulatory approvals granted by the various state insurance departments to write insurance business in the respective states on a non-admitted basis. In accordance with U.S. GAAP, amortization of indefinite-lived intangible assets is not permitted. Indefinite-lived intangible assets are tested for impairment during the fourth quarter on an annual basis, or earlier if there is reason to suspect that their values may have been diminished or impaired. There were no impairments recognized in 2021, 2020, or 2019. In addition, as of December 31, 2021, no triggering events occurred that suggested an updated review was necessary.

Reserves for unpaid losses and loss adjustment expenses

Reserves for unpaid losses and loss adjustment expenses represent management's best estimate of ultimate unpaid cost of all reported and unreported losses and loss adjustment expenses incurred prior to the financial statement date. The estimates are based on an actuarial method that uses management’s initial expected loss ratios, expected reporting patterns for losses based on industry data and the Company’s actual reported losses and loss adjustment expenses. All estimates are regularly reviewed and, as experience develops and new information becomes known, the reserves for unpaid losses and loss adjustment expenses are adjusted as necessary. Such adjustments are reflected in the results of operations in the period in which they are determined. Although management believes that the reserves for losses and loss adjustment expenses are reasonable, due to the inherent uncertainty in estimating reserves for unpaid losses and loss adjustment expenses, it is possible that the Company’s actual incurred losses and loss adjustment expenses will not develop in a manner consistent with the assumptions inherent in the determination of these reserves. If actual liabilities exceed recorded amounts, there will be an increase to the Company’s reserves resulting in a reduction in net income and stockholders’ equity in the period in which the deficiency is identified. Furthermore, management may determine that recorded reserves are more than adequate to cover expected losses which will result in a reduction to the reserves. The Company believes that the reserves for unpaid losses and loss adjustment expenses at December 31, 2021 and 2020 are adequate and represent a reasonable estimate of the Company's future obligations. See Note 7 for a further discussion of reserves for unpaid losses and loss adjustment expenses.

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Revenue recognition

Premiums are recognized as revenue ratably over the term of the insurance contracts, net of ceded reinsurance. Unearned premiums are calculated on a daily pro rata basis.

Income taxes

Deferred income tax assets and liabilities are determined based on the differences between the recorded amounts and the tax bases of assets and liabilities, using enacted tax rates expected to be in effect during the year in which the basis differences reverse. The effect on deferred taxes of a change in tax rates is recognized in income in the period in which such change was enacted. Valuation allowances on deferred tax assets are estimated based on the Company's assessment of the realizability of such amounts. Valuation allowances are recorded when it is more likely than not that some portion, or all, of the deferred tax assets will not be realizable.

The Company provides for uncertain tax positions, and the related interest and penalties, based upon management’s assessment of whether a tax benefit is more likely than not to be sustained upon examination by tax authorities. To the extent that the anticipated tax outcome of these uncertain tax positions changes, such changes in estimate will impact the income tax provision in the period in which such determination is made. The Company recognizes accrued interest and penalties related to uncertain tax positions as a component of income tax expense.

The Company uses the portfolio approach to release stranded tax effects in accumulated other comprehensive income ("AOCI") related to its available-for-sale fixed-maturity securities. Under this approach, stranded tax effects remaining in AOCI are released only when the entire portfolio of the available-for-sale fixed-maturity securities are liquidated, sold or extinguished.

Commitments and contingencies

Liabilities for loss contingencies, arising from noninsurance policy claims, assessments, litigation, fines, and penalties and other sources, are recorded when it is probable that a liability has been incurred and the amount of the assessment and/or remediation can be reasonably estimated. Legal costs incurred in connection with loss contingencies are expensed as incurred.

Fair value of financial instruments

Fair value is estimated for each class of financial instrument based on the framework established in the fair value accounting guidance. This guidance requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Fair value hierarchy disclosures are based on the quality of inputs used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements).

See Note 3 for further details regarding fair value disclosures.

Stock-based compensation

Stock-based compensation is expensed based upon the estimated fair value of employee stock awards. Compensation cost for awards of equity instruments to employees is measured based on the grant-date fair value of those awards and compensation expense is recognized over the service period that the awards vest. Forfeitures of stock-based compensation awards are recognized as they occur. See Note 9 for further discussion and related disclosures regarding stock-based compensation.

Recently adopted accounting pronouncements

Accounting Standards Update ("ASU") 2016-13, Financial Instruments – Credit Losses (Topic 326)

On June 16, 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-13, "Financial Instruments - Credit Losses (Topic 326)" to provide more useful information about the expected credit losses on financial instruments. The update requires a financial asset measured at amortized cost to be presented at the net amount expected to be collected by means of an allowance for credit losses that runs through net income. Credit losses relating to available-for-sale fixed-

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maturity securities must also be recorded through an allowance for credit losses, which is limited to the amount by which fair value is below amortized cost. The measurement of credit losses on available-for-sale securities is similar under previous U.S. GAAP, but the update requires the use of the allowance account through which amounts can be reversed, rather than through an irreversible write-down. The FASB has issued additional ASUs on Topic 326 that do not change the core principle of the guidance in ASU 2016-13 but clarify certain aspects of it.

Effective January 1, 2020, the Company adopted this ASU using the modified-retrospective approach and recorded a cumulative effect adjustment to beginning retained earnings. The adoption of this ASU resulted in the recognition of an allowance for credit loss related to the Company’s reinsurance recoverables. However, since the Company enters into contracts with reinsurers that have A.M. Best ratings of “A” (Excellent) or better, the allowance was not material to the Company’s consolidated financial statements.

ASU 2019-12, Income Taxes - Simplifying the Accounting for Income Taxes

In December 2019, the FASB issued updated guidance for the accounting for income taxes. The updated guidance is intended to simplify the accounting for income taxes by removing several exceptions contained in existing guidance and amending other existing guidance to simplify several income tax accounting matters. Effective January 1, 2021, the Company adopted ASU 2019-12 using a modified-retrospective approach. The adoption of ASU 2019-12 did not have a material impact on the Company's consolidated financial statements.

Prospective accounting pronouncements

There are no other prospective accounting standards which, upon their effective date, would have a material impact on the Company's consolidated financial statements.

2.     Investments

Available-for-sale investments

The following tables summarize the Company’s available-for-sale investments at December 31, 2021 and 2020:

	December 31, 2021
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	6,936	$	—	$	(89)	$	6,847
Obligations of states, municipalities and political subdivisions	216,375		12,139		(469)		228,045
Corporate and other securities	450,594		11,714		(3,821)		458,487
Asset-backed securities	299,810		2,217		(252)		301,775
Residential mortgage-backed securities	340,804		1,804		(4,923)		337,685
Commercial mortgage-backed securities	57,000		2,433		(206)		59,227
Total fixed-maturity investments	$	1,371,519	$	30,307	$	(9,760)	$	1,392,066

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	December 31, 2020
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
Fixed maturities:
Obligations of states, municipalities and political subdivisions	$	216,181	$	14,792	$	(67)	$	230,906
Corporate and other securities	294,854		21,840		(86)		316,608
Asset-backed securities	236,813		4,230		(382)		240,661
Residential mortgage-backed securities	217,859		4,938		(141)		222,656
Commercial mortgage-backed securities	66,110		4,886		(27)		70,969
Total fixed-maturity investments	$	1,031,817	$	50,686	$	(703)	$	1,081,800

Available-for-sale investments in a loss position

The Company regularly reviews all its available-for-sale investments with unrealized losses to assess whether the decline in the fair value is deemed to be a credit loss. The Company considers a number of factors in completing its review of credit losses, including the extent to which a security's fair value has been below cost and the financial condition of an issuer. In addition to specific issuer information, the Company also evaluates the current market and interest rate environment. Generally, a change in a security’s value caused by a change in the market or interest rate environment does not constitute a credit loss.

For fixed-maturity securities, the Company also considers whether it intends to sell the security or if it is more likely than not that it will be required to sell the security before recovery and the ability to recover all amounts outstanding when contractually due. When assessing whether it intends to sell a fixed-maturity security or if it is likely to be required to sell a fixed-maturity security before recovery of its amortized cost, the Company evaluates facts and circumstances including, but not limited to, decisions to reposition the investment portfolio, potential sales of investments to meet cash flow needs and potential sales of investments to capitalize on favorable pricing.

For fixed-maturity securities where a decline in fair value is below the amortized cost basis and the Company intends to sell the security, or it is more likely than not that the Company will be required to sell the security before recovery of its amortized cost, an impairment is recognized in net income based on the fair value of the security at the time of assessment. For fixed-maturity securities that the Company does not intend to sell or for which it is more likely than not that the Company would not be required to sell before recovery of its amortized cost, the Company compares the estimated present value of the cash flows expected to be collected to the amortized cost of the security. The extent to which the estimated present value of the cash flows expected to be collected is less than the amortized cost of the security represents the credit-related portion of the impairment, which is recognized in net income through an allowance for credit losses. Any remaining decline in fair value represents the noncredit portion of the impairment, which is recognized in other comprehensive income.

The Company reports investment income due and accrued separately from fixed-maturity securities, available for sale, and has elected not to measure an allowance for credit losses for investment income due and accrued. Investment income due and accrued is written off through earnings at the time the issuer of the bond defaults or is expected to default on payments.

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The following tables summarize gross unrealized losses and estimated fair value for available-for-sale investments by length of time that the securities have continuously been in an unrealized loss position:

	December 31, 2021
	Less than 12 Months				12 Months or Longer				Total
	Estimated Fair Value		Gross Unrealized Losses		Estimated Fair Value		Gross Unrealized Losses		Estimated Fair Value		Gross Unrealized Losses
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	6,847	$	(89)	$	—	$	—	$	6,847	$	(89)
Obligations of states, municipalities and political subdivisions	23,870		(469)		—		—		23,870		(469)
Corporate and other securities	188,522		(3,718)		1,092		(103)		189,614		(3,821)
Asset-backed securities	136,669		(204)		4,452		(48)		141,121		(252)
Residential mortgage-backed securities	260,251		(4,329)		17,968		(594)		278,219		(4,923)
Commercial mortgage-backed securities	10,773		(206)		—		—		10,773		(206)
Total fixed-maturity investments	$	626,932	$	(9,015)	$	23,512	$	(745)	$	650,444	$	(9,760)

At December 31, 2021, the Company held 234 fixed-maturity securities with a total estimated fair value of $650.4 million and gross unrealized losses of $9.8 million. Of those securities, 10 were in a continuous unrealized loss position for greater than one year. As discussed above, the Company regularly reviews all fixed-maturity securities within its investment portfolio to determine whether a credit loss has occurred. Based on the Company's review as of December 31, 2021, unrealized losses were caused by interest rate changes or other market factors and were not credit-specific issues. At December 31, 2021, 81.5% of the Company’s fixed-maturity securities were rated "A-" or better and all of Company's fixed-maturity securities made expected coupon payments under the contractual terms of the securities. Based on its review, the Company concluded that there were no credit losses from fixed-maturity securities with unrealized losses for the year ended December 31, 2021.

	December 31, 2020
	Less than 12 Months				12 Months or Longer				Total
	Estimated Fair Value		Gross Unrealized Holding Losses		Estimated Fair Value		Gross Unrealized Holding Losses		Estimated Fair Value		Gross Unrealized Holding Losses
	(in thousands)
Fixed maturities:
Obligations of states, municipalities and political subdivisions	$	6,412	$	(67)	$	—	$	—	$	6,412	$	(67)
Corporate and other securities	3,829		(86)		—		—		3,829		(86)
Asset-backed securities	57,750		(149)		23,825		(233)		81,575		(382)
Residential mortgage-backed securities	46,869		(129)		266		(12)		47,135		(141)
Commercial mortgage-backed securities	4,971		(27)		—		—		4,971		(27)
Total fixed-maturity investments	$	119,831	$	(458)	$	24,091	$	(245)	$	143,922	$	(703)

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Contractual maturities of available-for-sale fixed-maturity securities

The amortized cost and estimated fair value of available-for-sale fixed-maturity securities at December 31, 2021 are summarized, by contractual maturity, as follows:

	Amortized		Estimated
	Cost		Fair Value
	(in thousands)
Due in one year or less	$	6,742	$	6,822
Due after one year through five years	185,273		189,497
Due after five years through ten years	226,707		232,197
Due after ten years	255,183		264,863
Asset-backed securities	299,810		301,775
Residential mortgage-backed securities	340,804		337,685
Commercial mortgage-backed securities	57,000		59,227
Total fixed maturities	$	1,371,519	$	1,392,066

Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties, and the lenders may have the right to put the securities back to the borrower.

Net investment income

The following table presents the components of net investment income:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Interest:
Taxable bonds	$	25,654	$	20,493	$	14,853
Municipal bonds (tax exempt)	3,501		3,618		3,692
Cash equivalents and short-term investments	12		262		842
Dividends on equity securities	3,962		3,512		2,136
Gross investment income	33,129		27,885		21,523
Investment expenses	(2,081)		(1,775)		(1,390)
Net investment income	$	31,048	$	26,110	$	20,133

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Realized investment gains and losses

The following table presents realized investment gains and losses:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Fixed-maturity securities:
Realized gains	$	2,944	$	4,022	$	567
Realized losses	(3)		(383)		(79)
Net realized gains from fixed-maturity securities	2,941		3,639		488
Equity securities:
Realized gains	97		—		556
Realized losses	(210)		(119)		(688)
Net realized losses from equity securities	(113)		(119)		(132)
Short-term securities - realized gains	—		13		3
Net realized investment gains	$	2,828	$	3,533	$	359

Change in net unrealized (losses) gains on fixed-maturity securities

The change in net unrealized (losses) gains for fixed-maturity securities was $(29.4) million, $35.3 million, and $18.7 million for the years ended December 31, 2021, 2020, and 2019 respectively.

Insurance – statutory deposits

The Company had invested assets with a carrying value of $6.7 million and $6.9 million on deposit with state regulatory authorities at December 31, 2021 and 2020, respectively.

Payable for investments purchased

The Company recorded a payable for investments purchased, not yet settled, of $15.0 million at December 31, 2021. The payable balance was included in the "other liabilities" line item of the consolidated balance sheet.

3.     Fair value measurements

Fair value is estimated for each class of financial instrument based on the framework established in the fair value accounting guidance. Fair value is defined as the price in the principal market that would be received for an asset or paid to transfer a liability to facilitate an orderly transaction between market participants on the measurement date. Market participants are assumed to be independent, knowledgeable, able and willing to transact an exchange and not acting under duress. Fair value hierarchy disclosures are based on the quality of inputs used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). Adjustments to transaction prices or quoted market prices may be required in illiquid or disorderly markets in order to estimate fair value.

The three levels of the fair value hierarchy are defined as follows:

Level 1 - Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities traded in active markets.

Level 2 - Inputs to the valuation methodology include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and market-corroborated inputs.

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Level 3 - Inputs to the valuation methodology are unobservable for the asset or liability and are significant to the fair value measurement.

Fair values of the Company's investment portfolio are estimated using unadjusted prices obtained by its investment accounting vendor from nationally recognized third-party pricing services, where available. Values for U.S. Treasuries and exchange traded funds are generally based on Level 1 inputs which use quoted prices in active markets for identical assets. For other fixed-maturity securities and non-redeemable preferred stock, the pricing vendors use a pricing methodology involving the market approach, including pricing models which use prices and relevant market information regarding a particular security or securities with similar characteristics to establish a valuation. The estimates of fair value of these investments are included in the amounts disclosed as Level 2. For those investments where significant inputs are unobservable, the Company's investment accounting vendor obtains valuations from pricing vendors or brokers using the market approach and income approach valuation techniques and are disclosed as Level 3.

Management performs several procedures to ascertain the reasonableness of investment values included in the consolidated financial statements at December 31, 2021 and 2020, including 1) obtaining and reviewing internal control reports from the Company's investment accounting vendor that assess fair values from third party pricing services, 2) discussing with the Company's investment accounting vendor its process for reviewing and validating pricing obtained from third party pricing services and 3) reviewing the security pricing received from the Company's investment accounting vendor and monitoring changes in unrealized gains and losses at the individual security level. The Company has evaluated the various types of securities in its investment portfolio to determine an appropriate fair value hierarchy level based upon trading activity and the observability of market inputs.

The following tables present the balances of assets measured at fair value on a recurring basis as of December 31, 2021 and 2020, by level within the fair value hierarchy.

	December 31, 2021
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	6,847	$	—	$	—	$	6,847
Obligations of states, municipalities and political subdivisions	—		228,045		—		228,045
Corporate and other securities	—		458,487		—		458,487
Asset-backed securities	—		301,775		—		301,775
Residential mortgage-backed securities	—		337,685		—		337,685
Commercial mortgage-backed securities	—		59,227		—		59,227
Total fixed maturities	6,847		1,385,219		—		1,392,066
Equity securities:
Exchange traded funds	123,389		—		—		123,389
Non-redeemable preferred stock	—		49,222		—		49,222
Total equity securities	123,389		49,222		—		172,611
Total	$	130,236	$	1,434,441	$	—	$	1,564,677

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	December 31, 2020
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets
Fixed maturities:
Obligations of states, municipalities and political subdivisions	$	—	$	230,906	$	—	$	230,906
Corporate and other securities	—		316,608		—		316,608
Asset-backed securities	—		240,661		—		240,661
Residential mortgage-backed securities	—		222,656		—		222,656
Commercial mortgage-backed securities	—		70,969		—		70,969
Total fixed maturities	—		1,081,800		—		1,081,800
Equity securities:
Exchange traded funds	98,050		—		—		98,050
Non-redeemable preferred stock	—		31,612		—		31,612
Total equity securities	98,050		31,612		—		129,662
Total	$	98,050	$	1,113,412	$	—	$	1,211,462

There were no assets or liabilities measured at fair value on a nonrecurring basis as of December 31, 2021 or 2020.

The Company holds cash equivalents that are managed as part of its investment portfolio and, due to the short-term maturities of these assets, the carrying value of these investments approximates fair value. The Company held cash equivalents of $44.7 million and $13.7 million at December 31, 2021 and 2020, respectively. In addition, the estimated fair value of the Credit Facility approximated its carrying value as of December 31, 2021 and 2020. See Note 11 for further information regarding the Credit Facility.

4.     Deferred policy acquisition costs

The following table presents the amounts of policy acquisition costs deferred and amortized for the years ended:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Balance, beginning of year	$	31,912	$	23,564	$	14,801
Policy acquisition costs deferred:
Direct commissions	111,463		80,682		56,841
Ceding commissions	(28,965)		(18,879)		(12,373)
Other underwriting and policy acquisition costs	6,191		4,478		3,727
Policy acquisition costs deferred	88,689		66,281		48,195
Amortization of net policy acquisition costs	(78,633)		(57,933)		(39,432)
Balance, end of year	$	41,968	$	31,912	$	23,564

Amortization of net policy acquisition costs is included in the line item "Underwriting, acquisition and insurance expenses" in the accompanying consolidated statements of income and comprehensive income.

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5.     Underwriting, acquisition and insurance expenses

Underwriting, acquisition and insurance expenses consist of the following:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Underwriting, acquisition and insurance expenses incurred:
Direct commissions	$	98,847	$	69,922	$	48,382
Ceding commissions	(25,702)		(16,145)		(12,347)
Other operating expenses	51,755		40,519		34,182
Total	$	124,900	$	94,296	$	70,217

Other operating expenses within underwriting, acquisition and insurance expenses included salaries, employee benefits and bonus expense of $48.9 million, $35.9 million and $27.8 million, for the years ended December 31, 2021, 2020 and 2019, respectively.

6.     Income taxes

The Company’s subsidiaries file a consolidated U.S. federal income tax return. Under a tax sharing agreement, Kinsale collects from or refunds to its subsidiaries the amount of taxes determined as if Kinsale and the subsidiaries filed separate returns. The Company is no longer subject to income tax examination by tax authorities for the years ended before January 1, 2018.

Income tax expense includes the following components for the years ending December 31, 2021, 2020 and 2019:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Current federal income tax expense	$	36,718	$	11,378	$	12,860
Deferred federal income tax (benefit) expense	(576)		616		(125)
Income tax expense	$	36,142	$	11,994	$	12,735

The Company paid $40.6 million, $13.0 million and $11.6 million in federal income taxes during the years ended December 31, 2021, 2020 and 2019, respectively. Current income taxes recoverable was $5.1 million and $1.2 million at December 31, 2021 and 2020, respectively and included in "other assets" in the accompanying consolidated balance sheets.

The prevailing federal income tax rate was 21% in 2021, 2020 and 2019. The Company’s effective income tax rate on income before income taxes differs from the prevailing federal income tax rate and is summarized as follows:

	Year ended December 31,
	2021		2020		2019
	(in thousands)
Income tax expense at federal income tax rate	$	39,648	$	21,087	$	15,971
Stock options exercised	(2,148)		(7,634)		(2,411)
Restricted stock award vesting	(677)		(658)		(153)
Tax-exempt investment income	(546)		(565)		(577)
Other	(135)		(236)		(95)
Total	$	36,142	$	11,994	$	12,735

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The significant components of the net deferred tax asset (liability) are summarized as follows:

	December 31,
	2021		2020
	(in thousands)
Deferred tax assets:
Unpaid losses and loss adjustment expenses	$	15,723	$	11,736
Unearned premiums	13,190		9,942
State operating loss carryforwards	4,554		3,833
Stock compensation	1,140		865
Allowance for credit losses	712		649
Other	278		254
Deferred tax assets before allowance	35,597		27,279
Less: valuation allowance	(4,159)		(3,491)
Total deferred tax assets	31,438		23,788
Deferred tax liabilities:
Unrealized gains on fixed-maturity securities	4,315		10,497
Unrealized gains on equity securities	11,368		6,552
Deferred policy acquisition costs, net of ceding commissions	8,813		6,701
Property and equipment	2,741		2,433
Transition adjustment for loss reserve discount	1,025		1,281
Intangible assets	743		743
Other	324		229
Total deferred tax liabilities	29,329		28,436
Net deferred tax asset (liability)	$	2,109	$	(4,648)

At December 31, 2021 and 2020, the Company had state net operating losses ("NOLs") of $96.1 million and $80.9 million, respectively. The state NOLs are available to offset future taxable income or reduce taxes payable and begin expiring in 2029. 

Management evaluates the need for a valuation allowance related to its deferred tax assets. At December 31, 2021 and 2020, the Company recorded a tax valuation allowance equal to the state NOLs and the deferred tax assets, net of existing deferred tax liabilities that were expected to reverse in future periods, related to certain state jurisdictions. No other valuation allowances were established against the Company’s deferred tax assets at December 31, 2021 and 2020, as the Company believes that it is more likely than not that the remaining deferred tax assets will be realized given the carry back availability, reversal of existing temporary differences and future taxable income.

The Company did not have any material uncertain tax positions in 2021 or 2020. Management is not aware of any events that would give rise to any uncertain tax positions.

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7.     Reserves for unpaid losses and loss adjustment expenses

The reserves for unpaid losses and loss adjustment expenses represent the Company's estimated ultimate cost of all unreported and reported but unpaid insured claims and the cost to adjust these losses that have occurred as of or before the balance sheet date. Reserves are estimated using individual case-basis valuations of reported claims and statistical analyses. Case reserves are established for individual claims that have been reported to the Company, typically by the Company's insureds or their brokers. Based on the information provided, case reserves are established by estimating the ultimate losses from the claim, including defense costs associated with the ultimate settlement of the claim. Incurred-but-not-reported ("IBNR") reserves are determined using actuarial methods to estimate losses that have occurred but have not yet been reported to the Company. The incurred Bornhuetter-Ferguson actuarial method ("BF method") is used to arrive at the Company's loss reserve estimates for each line of business. This method estimates the reserves based on the initial expected loss ratio and expected reporting patterns for losses. Because the Company has a limited number of years of loss experience compared to the period over which losses are expected to be reported, the Company uses industry and peer-group data, in addition to its own data, as a basis for selecting its expected reporting patterns.

As part of the reserving process, the Company reviews historical data and considers the effect of various factors on claims development patterns including polices written on a "claims made" versus "occurrence" basis. Policies written on a claims made basis provide coverage to the insured only for losses incurred during the coverage period, and only if the claim was reported during a specified reporting period. Policies written on an occurrence basis provide coverage to the insured for liabilities arising from events occurring during the term of the policy, regardless of when a claim is actually made. Accordingly, claims related to policies written on an occurrence basis may arise many years after a policy has lapsed. Property losses, while written on an occurrence basis, are generally reported within a short time from the date of loss, and in most instances, property claims are settled and paid within a relatively short period of time.

The following table presents a reconciliation of consolidated beginning and ending reserves for unpaid losses and loss adjustment expenses:

	December 31,
	2021		2020		2019
	(in thousands)
Gross reserves for unpaid losses and loss adjustment expenses, beginning of year	$	636,013	$	460,058	$	369,152
Less: reinsurance recoverable on unpaid losses	83,730		69,792		55,389
Adoption of new accounting standard for credit losses	—		(282)		—
Net reserves for unpaid losses and loss adjustment expenses, beginning of year	552,283		390,548		313,763
Incurred losses and loss adjustment expenses:
Current year	356,401		277,140		178,986
Prior year	(31,986)		(13,338)		(9,423)
Total net losses and loss adjustment expenses incurred	324,415		263,802		169,563
Payments:
Current year	23,765		27,664		19,054
Prior year	89,150		74,403		74,006
Total payments	112,915		102,067		93,060
Net reserves for unpaid losses and loss adjustment expenses, end of year	763,783		552,283		390,266
Reinsurance recoverable on unpaid losses, net of allowance	117,561		83,730		69,792
Gross reserves for unpaid losses and loss adjustment expenses, end of year	$	881,344	$	636,013	$	460,058

During the year ended December 31, 2021, prior accident years developed favorably by $32.0 million, of which $33.7 million was attributable to the 2020 accident year and was related to a lower-than-expected level of reported losses. Although the Company does not have any significant direct COVID-19 exposure, the related disruption in the court system and the general economy

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created additional uncertainty in estimating loss reserves in 2020. As a result, 2020 accident year actuarial assumptions were adjusted in 2020 to increase IBNR to account for this additional uncertainty. The Company's current outlook is more favorable than in the prior year and, based on observed trends, the Company reevaluated and adjusted certain assumptions for accident year 2020 in 2021 to reflect the favorable experience. In addition, $3.8 million of favorable development was attributable to accident year 2019 due to reported losses emerging at lower levels than expected. This favorable development was offset in part by adverse development, mostly attributable to the 2016 and 2018 accident years due to modest adjustments in actuarial assumptions.

Current accident year incurred losses and loss adjustment expenses for the year ended December 31, 2021 included $8.6 million of catastrophe losses primarily related to Hurricane Ida and winter storms Uri and Viola in Texas.

During the year ended December 31, 2020, our net incurred losses for accident years 2019 and prior developed favorably by $13.3 million. This favorable development included $10.5 million for the 2019 accident year and $1.8 million for the 2018 accident year. This favorable development was primarily due to reported losses emerging at a lower level than expected, largely across the other liability and excess lines of business.

Current year incurred losses and loss adjustment expenses for the year ended December 31, 2020 included $23.2 million of catastrophe losses primarily related to Hurricane Laura, Hurricane Sally and the California wildfires.

During the year ended December 31, 2019, our net incurred losses for accident years 2018 and prior developed favorably by $9.4 million. This favorable development included $13.0 million for the 2018 accident year, $1.6 million for the 2017 accident year. This favorable development was primarily due to reported losses emerging at a lower level than expected, on the other liability and products liability lines of business. The favorable development was offset by adverse development of $5.2 million for the 2011 through 2015 accident years. The unfavorable development was primarily attributable to the other liability occurrence line of business. This adverse development largely resulted from management’s decision to lengthen the actuarial loss development factors to provide for emergence of reported losses over a longer period of time based on trends observed in loss experience, which added a modest amount of conservatism to the Company’s IBNR reserves.

Incurred and Paid Claims Development

The following is information about incurred and paid claims development as of December 31, 2021, net of reinsurance, as well as cumulative claim frequency and the total of IBNR liabilities plus expected development on reported claims included within the net incurred claims amounts. The development and claims duration tables below exclude commuted multi-line quota-share reinsurance treaty ("MLQS") contracts, which would distort development patterns related to those transactions. Cumulative number of reported claims is reported on a per claim basis.

The information about incurred and paid claims development for the years ended December 31, 2012 to December 31, 2020, is presented as unaudited supplementary information.

Property

	Incurred Claims and Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,										As of December 31, 2021
Accident Year	2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021		Total of IBNR Liabilities Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
	($ in thousands)
2017	$	12,473	$	11,705	$	11,676	$	11,631	$	11,606	$	—	1,041
2018			11,559		12,004		12,698		12,704		26		650
2019					14,914		13,909		15,572		154		642
2020							40,612		37,939		1,234		2,294
2021									36,531		9,323		1,034
							Total		$	114,352

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	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,
Accident Year	2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021
	($ in thousands)
2017	$	9,938	$	11,233	$	11,602	$	11,608	$	11,605
2018			9,132		11,646		12,599		12,660
2019					9,852		12,581		13,996
2020							19,897		30,321
2021									14,268
							Total		82,850
			All outstanding liabilities before 2017, net of reinsurance						—
			Liabilities for claims and claim adjustment expenses, net of reinsurance						$	31,502

Historical Claims Duration

The following is supplementary information about average historical claims duration as of December 31, 2021:

Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	(Unaudited)
Years	1		2		3		4		5
Property	62.5	%	19.0	%	6.6	%	0.3	%	—	%

Casualty - Claims Made

	Incurred Claims and Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,																				As of December 31, 2021
Accident Year	2012 Unaudited		2013 Unaudited		2014 Unaudited		2015 Unaudited		2016 Unaudited		2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021		Total of IBNR Liabilities Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
2012	$	7,913	$	5,749	$	4,205	$	3,102	$	2,845	$	2,477	$	2,314	$	2,207	$	2,136	$	1,867	$	136	138
2013			15,238		11,639		9,113		7,917		7,002		6,463		6,128		6,087		6,215		356		228
2014					18,847		14,289		11,748		11,217		10,948		10,988		10,620		10,266		638		273
2015							18,883		16,777		14,896		13,583		13,942		13,548		13,414		937		258
2016									19,170		14,693		14,675		14,322		13,583		13,602		1,431		310
2017											18,116		17,097		16,120		15,794		14,989		2,434		371
2018													22,429		20,234		18,612		17,057		5,108		464
2019															34,693		29,056		26,426		11,037		550
2020																	55,630		44,641		31,667		772
2021																			84,018		74,017		1,035
																	Total		$	232,495

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	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,
Accident Year	2012 Unaudited		2013 Unaudited		2014 Unaudited		2015 Unaudited		2016 Unaudited		2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021
2012	$	153	$	475	$	877	$	1,024	$	1,090	$	1,882	$	1,946	$	1,946	$	1,946	$	1,732
2013			499		1,915		4,436		5,070		5,320		5,439		5,482		5,612		5,843
2014					435		1,865		5,039		6,385		8,290		9,415		9,491		9,628
2015							217		4,496		7,563		9,238		11,372		11,522		12,142
2016									1,158		3,015		6,907		9,839		11,381		12,105
2017											340		4,897		8,252		10,484		11,357
2018													507		5,030		8,931		10,330
2019															2,487		6,005		10,123
2020																	1,002		7,446
2021																			1,146
																	Total		81,852
	All outstanding liabilities before 2012, net of reinsurance																		56
	Liabilities for claims and claim adjustment expenses, net of reinsurance																		$	150,699

Casualty - Occurrence

	Incurred Claims and Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,																				As of December 31, 2021
Accident Year	2012 Unaudited		2013 Unaudited		2014 Unaudited		2015 Unaudited		2016 Unaudited		2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021		Total of IBNR Liabilities Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
2012	$	16,977	$	17,436	$	18,803	$	20,401	$	20,579	$	22,001	$	22,401	$	23,223	$	23,197	$	22,271	$	997	597
2013			30,616		28,771		28,037		29,039		31,731		33,248		33,973		33,128		33,002		2,273		872
2014					47,805		40,668		38,049		36,678		39,313		41,859		42,434		41,367		4,374		1,230
2015							59,717		51,739		49,122		52,100		54,697		54,090		54,090		7,108		1,700
2016									61,440		55,680		53,549		55,534		57,401		60,861		10,378		1,518
2017											71,126		67,151		68,985		70,641		71,117		18,282		1,843
2018													86,157		78,331		78,386		83,952		33,875		1,918
2019															112,266		109,994		108,138		63,673		2,006
2020																	154,619		136,212		119,143		1,761
2021																			200,598		190,069		1,332
																	Total		$	811,608

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	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,
Accident Year	2012 Unaudited		2013 Unaudited		2014 Unaudited		2015 Unaudited		2016 Unaudited		2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021
2012	$	757	$	4,441	$	7,850	$	11,238	$	14,382	$	16,474	$	19,383	$	20,707	$	21,408	$	20,805
2013			1,099		4,469		7,957		14,890		21,348		26,715		28,248		29,610		30,116
2014					698		3,081		8,489		17,576		23,771		31,026		34,338		35,807
2015							941		3,161		12,685		28,385		37,690		41,724		44,161
2016									1,099		6,015		17,225		28,924		34,437		43,311
2017											1,581		9,352		22,407		37,736		46,025
2018													2,638		10,995		22,860		35,138
2019															3,944		16,687		30,518
2020																	2,400		8,673
2021																			3,205
																	Total		297,759
					All outstanding liabilities before 2012, net of reinsurance														329
			Liabilities for claims and claim adjustment expenses, net of reinsurance																$	514,178

Historical Claims Duration

The following is supplementary information about average historical claims duration as of December 31, 2021:

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	(Unaudited)
Years	1		2		3		4		5		6		7		8		9		10
Casualty - claims made	4.9	%	20.5	%	25.7	%	12.6	%	9.9	%	12.3	%	2.4	%	1.1	%	1.9	%	—	%
Casualty - occurrence	2.4	%	9.1	%	15.0	%	20.4	%	14.4	%	13.0	%	7.6	%	4.5	%	2.3	%	—	%

Reconciliation of Incurred and Paid Claims Development to the Liability for Unpaid Claims and Claim Adjustment Expenses

The reconciliation of the net incurred and paid claims development tables to the liability for unpaid claims and claim adjustment expenses in the consolidated statement of financial position is as follows:

(in thousands)	December 31, 2021
Net outstanding liabilities
Property	$	31,502
Casualty - claims made	150,699
Casualty - occurrence	514,178
Liabilities for unpaid claims and claim adjustment expenses, net of reinsurance	696,379
Reinsurance recoverable on unpaid claims
Property	16,777
Casualty - claims made	16,581
Casualty - occurrence	84,203
Total reinsurance recoverable on unpaid claims	117,561
Unallocated claims adjustment expenses	67,404
Gross liability for unpaid claims and claim adjustment expense	$	881,344

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8.     Reinsurance

The Company purchases reinsurance from other insurance companies ("reinsurers") in order to limit its exposure to large losses and enable it to underwrite policies with sufficient limits to meet policyholder needs. In a reinsurance transaction, an insurance company transfers, or cedes, part or all of its exposure to the reinsurer that receives a portion of the premium. The ceding of insurance does not legally discharge the Company from its primary liability for the full amount of the policy coverage, and therefore the Company will be required to pay the loss and bear collection risk if the reinsurer fails to meet its obligations under the reinsurance agreement.

The following table summarizes the effect of reinsurance on premiums written and earned:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Written:
Direct	$	764,373	$	552,814	$	389,569
Assumed	—		—		125
Ceded	(104,164)		(74,595)		(47,633)
Net written	$	660,209	$	478,219	$	342,061
Earned:
Direct	$	677,630	$	479,181	$	330,464
Assumed	—		21		104
Ceded	(94,751)		(66,448)		(47,587)
Net earned	$	582,879	$	412,754	$	282,981

Incurred losses and loss adjustment expenses were net of reinsurance recoverables (ceded incurred losses and loss adjustment expenses) of $49.7 million, $42.0 million and $27.2 million for the years ended December 31, 2021, 2020 and 2019, respectively.

Reinsurance balances

The following table presents reinsurance recoverables on paid and unpaid losses as of December 31, 2021 and 2020:

	December 31, 2021		December 31, 2020
	(in thousands)
Reinsurance recoverables on paid losses	$	5,409	$	9,485
Reinsurance recoverables on unpaid losses	117,561		83,730
Reinsurance recoverables	$	122,970	$	93,215

Credit risk exists with reinsurance ceded to the extent that any reinsurer is unable to meet the obligations assumed under the reinsurance agreements. Allowances are established for amounts deemed uncollectible. The Company evaluates the financial condition of its reinsurers and monitors concentration of credit risk arising from its exposure to individual reinsurers. All reinsurance recoverables are from companies with A.M. Best ratings of "A" (Excellent) or better. To further reduce credit exposure to reinsurance recoverable balances, the Company has received letters of credit from certain reinsurers that are not authorized as reinsurers under U.S. state insurance regulations. The Company recorded an allowance for credit losses of $0.4 million and $0.3 million related to its reinsurance balances at December 31, 2021 and 2020, respectively; however, the deterioration in the credit quality of existing reinsurers or disputes over reinsurance agreements could result in future charges.

At December 31, 2021, reinsurance recoverables on paid and unpaid losses from the Company’s five largest reinsurers were $28.0 million, $27.4 million, $16.3 million, $10.2 million and $9.5 million, representing 74.3% of the total balance.

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At December 31, 2021, unearned premiums ceded to five reinsurers were $8.4 million, $5.5 million, $3.5 million, $3.3 million and $3.3 million, representing 71.6% of the total balance.

9.     Stockholders’ equity

Capital Stock

The Company’s authorized capital stock consists of 400,000,000 shares of common stock, par value $0.01 per share, and 100,000,000 shares of preferred stock, par value $0.01 per share. There were no shares of preferred stock issued or outstanding at December 31, 2021 or 2020.

Public Offerings

On August 7, 2020, the Company completed an underwritten public offering and sold and issued 310,500 shares of its common stock at a price of $190.00 per share. After deducting underwriting discounts and commissions and offering expenses, the Company received net proceeds of $56.7 million.

On August 12, 2019, the Company completed an underwritten public offering and sold and issued 741,750 shares of its common stock at a price of $93.00 per share. After deducting underwriter discounts and commissions and offering expenses, the Company received net proceeds from the offering of approximately $65.9 million.

Equity-based Compensation

On July 27, 2016, the Kinsale Capital Group, Inc. 2016 Omnibus Incentive Plan (the "2016 Incentive Plan") became effective. The 2016 Incentive Plan, which is administered by the Compensation, Nominating and Corporate Governance Committee of the Company's Board of Directors, provides for grants of stock options, restricted stock, restricted stock units and other stock-based awards to officers, employees, directors, independent contractors and consultants. The number of shares of common stock available for issuance under the 2016 Incentive Plan may not exceed 2,073,832.

The Company recognized total equity-based compensation expense of $4.8 million, $3.6 million and $2.7 million for the years ended December 31, 2021, 2020 and 2019, respectively.

Stock Options

On July 27, 2016, the Board of Directors approved, and the Company granted, 1,036,916 stock options with an exercise price equal to the initial public offering price of $16.00 per share. The options have a maximum contractual term of 10 years and vested in 4 equal annual installments following the date of the grant. The weighted average grant date fair value of options granted during 2016 was $2.71 per share.

The value of the options granted was estimated at the date of grant using the Black-Scholes pricing model using the following assumptions:

Risk-free rate of return	1.26	%
Dividend yield	1.25	%
Expected share price volatility(1)	18.50	%
Expected life in years(2)	6.3 years

(1)     Expected volatility was based on the Company’s competitors within the industry.

(2)     Expected life was calculated using the simplified method, which was an average of the contractual term of the option and its ordinary vesting period, as the Company did not have sufficient historical data for determining the expected term of our stock option awards.

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A summary of option activity as of December 31, 2021 and changes during the year then ended is presented below:

	Number of Shares	Weighted-average exercise price		Weighted-average remaining years of contractual life	Aggregate intrinsic value (in thousands)
Outstanding at December 31, 2020	387,738	$	16.00
Granted	—	—
Forfeited	(934)	16.00
Exercised	(61,371)	16.00
Outstanding at December 31, 2021	325,433	$	16.00	4.6	$	72,210
Exercisable at December 31, 2021	325,433	$	16.00	4.6	$	72,210

The total intrinsic value of options exercised was $10.4 million during the year ended December 31, 2021 and $37.0 million during the year ended December 31, 2020.

Restricted Stock Awards

During 2021, the Board of Directors approved, and the Company granted, restricted stock awards under the 2016 Incentive Plan. The restricted stock awards were valued on the date of grant and will vest over a period of 1 to 4 years corresponding to the anniversary date of the grants. The fair value of restricted stock awards was determined based on the closing trading price of the Company’s common stock on the grant date or, if no common stock was traded on the grant date, the last preceding date for which there was a sale of common stock. Except for restrictions placed on the transferability of restricted stock, holders of unvested restricted stock have full stockholder’s rights, including voting rights and the right to receive cash dividends. Unvested restricted stock awards and accrued dividends, if any, are forfeited upon the termination of service to or employment with the Company.

A summary of restricted stock activity under the equity compensation plans for the year ended is as follows:

	December 31, 2021
	Number of Shares	Weighted Average Grant Date Fair Value per Share
Nonvested outstanding at the beginning of the period	108,392	$	97.40
Granted	35,870	$	185.00
Vested	(41,121)	$	87.82
Forfeited	(7,157)	$	128.11
Nonvested outstanding at the end of the period	95,984	$	131.94

Employees surrender restricted stock awards to pay for withholding tax obligations resulting from any vesting of those awards. During the year ended December 31, 2021, restricted stock awards withheld for taxes in connection with the vesting of those awards totaled 12,958.

The per share weighted average grant-date fair value of the Company's restricted stock awards granted during the years ended December 31, 2021, 2020, and 2019 was $185.00, $147.45 and $80.59, respectively. The fair value of restricted stock awards that vested during the year ended December 31, 2021, 2020 and 2019 was $6.8 million, $5.8 million and $2.1 million respectively. As of December 31, 2021, the Company had $9.1 million of total unrecognized stock-based compensation expense expected to be charged to earnings over a weighted-average period of 2.6 years.

Subsequent Events

The Board of Directors granted 3,528 restricted stock awards on January 1, 2022 under the 2016 Incentive Plan to the Company’s non-employee directors. The restricted stock awards had a fair value on the date of grant of $237.89 per share and will vest on the first anniversary date of the grant.

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On February 14, 2022, the Company’s Board of Directors declared a cash dividend of $0.13 per share of common stock. This dividend is payable on March 14, 2022 to all stockholders of record on March 2, 2022.

10.    Earnings per share

The following table represents a reconciliation of the numerator and denominator of the basic and diluted earnings per share computations contained in the consolidated financial statements:

	Year ended December 31,
	2021		2020		2019
	(in thousands, except per share data)
Net income	$	152,659	$	88,419	$	63,316
Weighted average common shares outstanding - basic	22,693		22,319		21,528
Dilutive effect of shares issued under stock compensation arrangements:
Stock options	324		469		570
Restricted stock awards	45		64		38
Total dilutive effect of shares issued under stock compensation arrangements	369		533		608
Weighted average common shares outstanding - diluted	23,062		22,852		22,136
Earnings per common share:
Basic	$	6.73	$	3.96	$	2.94
Diluted	$	6.62	$	3.87	$	2.86

There were 30 thousand, 35 thousand and 54 thousand anti-dilutive stock awards for the years ended December 31, 2021, 2020 and 2019, respectively.

Basic earnings per share was computed by dividing the earnings attributable to the common stockholders by the weighted average number of shares of common stock outstanding during the period. Diluted earnings per share was computed by dividing earnings attributable to common stockholders by the weighted average number of shares of common stock outstanding during the period, including potentially dilutive shares of common stock for the period determined using the treasury stock method.

11.     Credit agreement

On May 28, 2019, the Company entered into a Credit Agreement (the “Credit Agreement”) that provided the Company with a $50.0 million senior unsecured revolving credit facility (the “Credit Facility”) and an uncommitted accordion feature that permits the Company to increase the commitments by an additional $30.0 million. The Credit Facility has a maturity of May 28, 2024. Borrowings under the Credit Facility were used to fund construction of the Company’s new headquarters and may also be used for working capital and general corporate purposes.

Loans under the Credit Facility may be subject to varying rates of interest depending on whether the loan is a Eurodollar loan or an alternate base rate (ABR) loan, at the Company's election. Eurodollar loans bear an interest rate per annum equal to adjusted LIBOR for the applicable interest period plus a margin of 1.75%. ABR loans bear an interest rate per annum equal to the higher of the prime rate, the New York Federal Reserve Board Rate or the one-month adjusted LIBOR, plus the applicable margin of 0.75% to 1.75%, depending on which interest option was applicable for the particular ABR loan. At December 31, 2021, there was $42.7 million outstanding under the Credit Facility, net of debt issuance cost of $0.3 million, with a weighted average interest rate of 1.92%. For the years ended December 31, 2021, 2020 and 2019, total interest expense under the Credit Facility was $1.0 million, $1.0 million and $0.2 million, respectively. For the years ended December 31, 2020 and 2019, $0.8 million and $0.2 million of interest expense was capitalized as part of the real estate project under construction, respectively. Interest paid was $0.9 million, $0.8 million and $0.1 million for the years ended December 31, 2021, 2020 and 2019, respectively.

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The Credit Agreement also contains representations and warranties and affirmative and negative covenants customary for financings of this type, as well as customary events of default. As of December 31, 2021, the Company was in compliance with all of its financial covenants under the Credit Facility.

12.     Contingencies

Contingencies arise in the normal conduct of the Company’s operations and are not expected to have a material effect on the Company’s financial condition or results of operations. However, adverse outcomes are possible and could negatively affect the Company’s financial condition and results of operations.

13.    Employee benefit plan

The Company has established a defined contribution employee retirement plan ("Plan") in accordance with Section 401(k) of the Internal Revenue Code. Expenses related to the Plan were $2.2 million, $1.7 million and $1.3 million in 2021, 2020 and 2019, respectively.

14.     Other comprehensive (loss) income

The following table summarizes the components of other comprehensive (loss) income:

	Year Ending December 31,
	2021		2020		2019
	(in thousands)
Unrealized (losses) gains on fixed-maturity securities arising during the period, before income taxes:	$	(26,792)	$	37,387	$	19,190
Income tax benefit (expense)	5,626		(7,851)		(4,029)
Unrealized (losses) gains arising during the period, net of income taxes	(21,166)		29,536		15,161
Less reclassification adjustment:
Net realized investment gains on available-for-sale investments	2,644		2,119		489
Income tax benefit	(555)		(445)		(102)
Reclassification adjustment included in net income	2,089		1,674		387
Other comprehensive (loss) income	$	(23,255)	$	27,862	$	14,774

The sale of an available-for-sale security results in amounts being reclassified from accumulated other comprehensive income to realized gains or losses in current period earnings. The related tax effect of the reclassification adjustment is recorded in income tax expense in current period earnings. See Note 2 for additional information.

15.      Underwriting information

The Company has one reportable segment, the Excess and Surplus Lines Insurance segment, which primarily offers commercial excess and surplus lines liability and property insurance products through its underwriting divisions. Gross written premiums by underwriting division are presented below:

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	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Commercial:
Small Business	$	112,142	$	83,289	$	63,181
Excess Casualty	109,464		76,715		51,225
Construction	103,540		87,206		71,035
Commercial Property	78,722		51,789		29,115
Allied Health	59,208		37,562		23,962
Products Liability	55,070		38,306		26,333
Life Sciences	41,297		31,027		17,821
General Casualty	36,042		24,591		20,931
Professional Liability	33,226		27,051		20,029
Management Liability	32,163		24,061		14,820
Energy	19,925		16,985		15,371
Environmental	13,584		8,568		5,179
Entertainment	12,396		4,614		2,348
Health Care	11,271		7,666		5,963
Inland Marine	9,703		6,910		3,467
Public Entity	9,207		3,007		580
Commercial Insurance	411		1,757		1,674
Total commercial	737,371		531,104		373,034
Personal:
Personal Insurance	27,002		21,710		16,660
Total	$	764,373	$	552,814	$	389,694

Small Business underwrites commercial general liability on smaller risks with an emphasis on artisan contractors and premises related exposures.

Excess Casualty underwrites excess liability over risks that would fit within the general casualty, construction, products liability and small business divisions. Coverage is written over the Company's primary liability policies as well as those of other insurers. This division also writes excess liability over primary commercial auto liability policies written by other carriers.

Construction underwrites commercial general liability coverage on contractors focusing on new residential construction, residential remodeling and renovation and commercial construction.

Commercial Property underwrites first-party coverage on manufacturing facilities, government and municipal buildings, professional buildings, offices and general commercial properties, vacant properties, as well as entertainment and retail facilities.

Allied Health underwrites commercial general liability, professional liability and excess liability on allied health and social service risks including assisted living facilities, home health care agencies and outpatient medical facilities.

Products Liability underwrites commercial general liability on manufacturers, distributors and importers of a wide array of consumer, commercial and industrial products.

Life Sciences underwrites general liability, products liability and professional liability coverage for manufacturers, distributors and developers of dietary supplements, medical devices, pharmaceuticals, biologics, health and beauty products, durable medical equipment and clinical trials.

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General Casualty underwrites general liability and liquor liability on hospitality, habitational and retail risks, among others, with similar premises liability loss exposures. During 2021, certain business previously underwritten by this division is now underwritten by the Entertainment division and prior year amounts have been reclassified to conform to the current year's presentation.

Professional Liability underwrites small-to-medium sized non-medical professional liability risks. The classes of risks include accountants, architects and engineers, financial planners, insurance agents, lawyers, realtors, and certain other professions.

Management Liability underwrites directors and officers liability, employment practices liability and fiduciary liability coverage on a variety of commercial and government risks.

Energy underwrites commercial general liability, pollution liability, professional liability and excess liability on enterprises engaged in the business of energy production or distribution or mining including drillers, lease operators, contractors, product manufacturers and alternative energy.

Environmental underwrites commercial general liability, pollution liability and professional liability on a wide range of commercial risks where environmental exposures exist that are operational in nature or related to the premises.

Entertainment underwrites commercial general liability for small-to-medium sized entertainment classes, including such classes as bowling alleys, campgrounds, escape rooms, fitness centers, museums and paintball facilities, among others. As previously discussed, during 2021, certain business previously underwritten by the General Casualty division is now underwritten by this division and prior year amounts have been reclassified to conform to the current year's presentation.

Health Care underwrites medical professional liability for physicians, surgeons, dentists, chiropractors and podiatrists. Policies cover both individuals and small practice groups.

Inland Marine underwrites a variety of inland marine coverages including builders risk, contractors' equipment, transportation risks and mobile equipment.

Public Entity underwrites law enforcement professional liability and school board liability.

Commercial Insurance underwrites commercial general liability on small accounts, through the Company's wholly-owned broker, Aspera.

Personal Insurance writes homeowners coverage on manufactured homes with catastrophe exposure due to coastal location.

The Company does business with two unaffiliated insurance brokers that generated $137.0 million and $118.8 million of gross written premiums for the year ended December 31, 2021, representing 17.9% and 15.5% of gross written premiums, respectively. No other broker generated 10.0% or more of the gross written premiums for the year ended December 31, 2021.

16. Statutory financial information

Kinsale Insurance maintains its accounts in conformity with accounting practices prescribed or permitted by state regulatory authorities that vary in certain respects from U.S. GAAP. In converting from statutory accounting principles to U.S. GAAP, typical adjustments include deferral of policy acquisition costs, the inclusion of statutory non-admitted assets and the inclusion of net unrealized gains or losses relating to fixed maturities in stockholders’ equity. The Company does not use any permitted practices that are different from prescribed statutory accounting practices.

Statutory net income and statutory capital and surplus for Kinsale Insurance as of December 31, 2021, 2020, and 2019 and for the years then ended are summarized as follows:

	Year ended December 31,
	2021		2020		2019
	(in thousands)
Statutory net income	$	115,885	$	54,338	$	40,917
Statutory capital and surplus	$	606,910	$	476,066	$	348,811

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Kinsale Insurance is subject to risk-based capital ("RBC") requirements. RBC is a method developed by the National Association of Insurance Commissioners ("NAIC") to determine the minimum amount of statutory capital appropriate for an insurance company to support its overall business operations in consideration of its size and risk profile. The formula for determining the amount of RBC is calculated using various factors, weighted based on the perceived degree of risk, which are applied to certain financial balances and financial activity. The adequacy of a company’s actual capital is evaluated by a comparison to the RBC results, as determined by the formula. Companies that do not maintain statutory capital and surplus at a level in excess of the company action level RBC are required to take specified actions. At December 31, 2021 and 2020, actual statutory capital and surplus for Kinsale Insurance substantially exceeded the regulatory requirements. 

Dividend payments to Kinsale from Kinsale Insurance are restricted by state insurance laws as to the amount that may be paid without prior approval of the regulatory authorities of Arkansas. The maximum dividend distribution is limited by Arkansas law to the greater of 10% of policyholder surplus as of December 31 of the previous year or statutory net income, not including realized capital gains, for the previous calendar year. Dividend payments are further limited to that part of available policyholder surplus which is derived from net profits on its business. The maximum dividend distribution that can be paid by Kinsale Insurance during 2022 without prior approval is $114.0 million.

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Schedule I

KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Summary of Investments—Other than Investments in Related Parties

Type of Investment	Cost or Amortized Cost		Fair Value		Amount at which shown on Balance Sheet
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	6,936	$	6,847	$	6,847
Obligations of states, municipalities and political subdivisions	216,375		228,045		228,045
Corporate and other securities	450,594		458,487		458,487
Asset-backed securities	299,810		301,775		301,775
Residential mortgage-backed securities	340,804		337,685		337,685
Commercial mortgage-backed securities	57,000		59,227		59,227
Total fixed maturities	1,371,519		1,392,066		1,392,066
Equity securities:
Exchange traded funds	70,151		123,389		123,389
Non-redeemable preferred stock	48,744		49,222		49,222
Total equity securities	118,895		172,611		172,611
Total investments	$	1,490,414	$	1,564,677	$	1,564,677

See accompanying Report of Independent Registered Public Accounting Firm.

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Schedule II

KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Condensed Financial Information of Registrant

Balance Sheets (Parent Company Only)

	December 31,
	2021		2020
	(in thousands)
Assets
Cash and cash equivalents	$	14,596	$	8,395
Due from subsidiaries	—		7,792
Investment in subsidiaries	721,369		600,931
Deferred income tax asset, net	934		587
Income taxes recoverable	5,059		1,177
Other assets	314		290
Total assets	$	742,272	$	619,172
Liabilities and Stockholders' Equity
Liabilities:
Accounts payable and accrued expenses	$	121	$	302
Due to subsidiaries	47		—
Credit facility	42,696		42,570
Other liabilities	73		62
Total liabilities	42,937		42,934
Stockholders’ equity:
Common stock	228		228
Additional paid-in capital	295,040		291,315
Retained earnings	385,942		243,315
Accumulated other comprehensive income	18,125		41,380
Stockholders’ equity	699,335		576,238
Total liabilities and stockholders’ equity	$	742,272	$	619,172

See accompanying notes to condensed financial information.

See accompanying Report of Independent Registered Public Accounting Firm.

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Schedule II

KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Condensed Financial Information of Registrant

Statements of Income and Comprehensive Income (Parent Company Only)

	Years Ended December 31,
	2021		2020		2019
	(in thousands)
Revenues:
Management fees from subsidiaries	$	7,002	$	5,709	$	4,502
Total revenues	7,002		5,709		4,502
Expenses:
Operating expenses	7,972		6,624		5,215
Other expenses	994		1,332		—
Total expenses	8,966		7,956		5,215
Loss before income taxes	(1,964)		(2,247)		(713)
Income tax benefit	(3,424)		(8,779)		(2,714)
Income before equity in net income of subsidiaries	1,460		6,532		2,001
Equity in net income of subsidiaries	151,199		81,887		61,315
Net income	152,659		88,419		63,316
Other comprehensive (loss) income:
Equity in other comprehensive (losses) earnings of subsidiaries	(23,255)		27,862		14,774
Total comprehensive income	$	129,404	$	116,281	$	78,090

See accompanying notes to condensed financial information.

See accompanying Report of Independent Registered Public Accounting Firm.

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Schedule II

KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Condensed Financial Information of Registrant

Statements of Cash Flows (Parent Company Only)

	Years Ended December 31,
	2021		2020		2019
	(in thousands)
Operating activities
Net income	$	152,659	$	88,419	$	63,316
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Deferred tax benefit	(347)		(68)		(150)
Stock compensation expense	4,844		3,575		2,742
Equity in undistributed earnings of subsidiaries	(151,199)		(81,887)		(61,315)
Changes in operating assets and liabilities	3,955		7,520		(14,247)
Dividends received from subsidiary	8,000		—		5,000
Net cash provided by (used in) operating activities	17,912		17,559		(4,654)
Investing activities
Contributions to subsidiary	(571)		(100,034)		(68,391)
Net cash used in investing activities	(571)		(100,034)		(68,391)
Financing activities
Common stock issued, net of transaction costs	—		56,698		65,879
Common stock issued, stock options exercised	982		3,622		2,750
Payroll taxes withheld and remitted on share-based payments	(2,101)		(1,803)		(617)
Dividends paid	(10,021)		(8,073)		(6,929)
Proceeds from credit facility	—		25,700		17,300
Debt issuance costs	—		—		(628)
Net cash (used in) provided by financing activities	(11,140)		76,144		77,755
Net change in cash and cash equivalents	6,201		(6,331)		4,710
Cash and cash equivalents at beginning of year	8,395		14,726		10,016
Cash and cash equivalents at end of year	$	14,596	$	8,395	$	14,726

See accompanying notes to condensed financial information.

See accompanying Report of Independent Registered Public Accounting Firm.

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KINSALE CAPITAL GROUP, INC.

Condensed Financial Information of Registrant

Notes to Condensed Financial Information

(Parent Company Only)

1. Accounting policies

Organization

Kinsale Capital Group, Inc. (the "Company"), a Delaware domiciled insurance holding company, was formed on June 3, 2009 for the purpose of acquiring and managing insurance entities.

Basis of presentation

The accompanying condensed financial statements have been prepared using the equity method. Under the equity method, the investment in consolidated subsidiaries is stated at cost plus equity in undistributed earnings of consolidated subsidiaries since the date of acquisition. These condensed financial statements should be read in conjunction with the Company’s consolidated financial statements.

Estimates and assumptions

Preparation of the condensed financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed financial statements and accompanying disclosures. Those estimates are inherently subject to change, and actual results may ultimately differ from those estimates.

Credit agreement

On May 28, 2019, the Company entered into a Credit Agreement (the “Credit Agreement”) that provided the Company with a $50.0 million senior unsecured revolving credit facility (the “Credit Facility”) and an uncommitted accordion feature that permits the Company to increase the commitments by an additional $30.0 million. The Credit Facility has a maturity of May 28, 2024. Borrowings under the Credit Facility were used to fund construction of the Company’s new headquarters and may also be used for working capital and general corporate purposes.

Loans under the Credit Facility may be subject to varying rates of interest depending on whether the loan is a Eurodollar loan or an alternate base rate (ABR) loan, at the Company's election. Eurodollar loans bear an interest rate per annum equal to adjusted LIBOR for the applicable interest period plus a margin of 1.75%. ABR loans bear an interest rate per annum equal to the higher of the prime rate, the New York Federal Reserve Board Rate or the one-month adjusted LIBOR, plus the applicable margin of 0.75% to 1.75%, depending on which interest option was applicable for the particular ABR loan. At December 31, 2021, there was $42.7 million outstanding under the Credit Facility, net of debt issuance cost of $0.3 million, with a weighted average interest rate of 1.92%. For the years ended December 31, 2021, 2020 and 2019, total interest expense under the Credit Facility was $1.0 million, $1.0 million and $0.2 million, respectively. For the years ended December 31, 2020 and 2019, $0.8 million and $0.2 million of interest expense was capitalized as part of the real estate project under construction, respectively. Interest paid was $0.9 million, $0.8 million and $0.1 million for the years ended December 31, 2021, 2020 and 2019, respectively.

The Credit Agreement also contains representations and warranties and affirmative and negative covenants customary for financings of this type, as well as customary events of default. As of December 31, 2021, the Company was in compliance with all of its financial covenants under the Credit Facility.

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Dividends from subsidiary

Cash dividends paid to Kinsale Capital Group, Inc. by its wholly-owned subsidiary, Kinsale Insurance Company, were $8.0 million for the year ended December 31, 2021 and $5.0 million for the year ended December 31, 2019. There were no cash dividends paid by the insurance subsidiary for the year ended December 31, 2020.

Commitments and contingencies

Liabilities for loss contingencies, arising from non-insurance policy claims, assessments, litigation, fines, and penalties and other sources, are recorded when it is probable that a liability has been incurred and the amount of the assessment and/or remediation can be reasonably estimated. Legal costs incurred in connection with loss contingencies are expensed as incurred.

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Schedule V

KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Valuation and Qualifying Accounts

			Additions		Deductions
(in thousands)	Balance at Beginning of Period (1)		Amounts Charged to Expense		Amounts Written Off or Disposals		Balance at End of Period
Year Ended December 31, 2021:
Allowance for premiums receivable	$	3,087	$	2,189	$	1,885	$	3,391
Valuation allowance for deferred tax assets	3,491		668		—		4,159
Allowance for reinsurance recoverables	282		118		—		400
Year Ended December 31, 2020:
Allowance for premiums receivable	2,345		1,240		498		3,087
Valuation allowance for deferred tax assets	1,592		1,899		—		3,491
Allowance for reinsurance recoverables	282		—		—		282
Year Ended December 31, 2019:
Allowance for premiums receivable	2,615		835		745		2,705
Valuation allowance for deferred tax assets	780		812		—		1,592

See accompanying Report of Independent Registered Public Accounting Firm.

(1) For the year ended December 31, 2020, the balance at the beginning of period included a reduction of $0.4 million to the allowance for premiums receivable and the establishment of an allowance for reinsurance recoverables of $0.3 million, each of which related to the adoption of the new accounting standard for credit losses.

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Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

Not applicable.

Item 9A. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in the Company’s reports under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to the Company’s management, including the Company’s President and Chief Executive Officer and the Company’s Executive Vice President, Chief Financial Officer and Treasurer, to allow timely decisions regarding required disclosures. Any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. The Company’s management, with the participation of the Company's President and Chief Executive Officer and the Company’s Executive Vice President, Chief Financial Officer and Treasurer, has evaluated the effectiveness of the design and operation of the Company’s disclosure controls and procedures as of the end of the period covered by this Annual Report on Form 10-K. Based upon that evaluation, the Company’s President and Chief Executive Officer and the Company’s Executive Vice President, Chief Financial Officer and Treasurer concluded that, as of December 31, 2021, the Company’s disclosure controls and procedures were effective to accomplish their objectives at the reasonable assurance level.

Management’s Report on Internal Control over Financial Reporting

Pursuant to Section 404 of the Sarbanes-Oxley Act of 2002, Management has evaluated the effectiveness of our internal control over financial reporting as of December 31, 2021. Management’s Report on Internal Control Over Financial Reporting and the report of the Company’s independent registered public accounting firm on the effectiveness of internal control over financial reporting as of December 31, 2021 are included in Part II, Item 8 of this Annual Report on Form 10-K.

Changes in Internal Control over Financial Reporting

There was no change in our internal control over financial reporting during the fourth quarter of 2021 that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

Item 9B. Other Information

Not applicable.

Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

Not applicable.

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PART III

Item 10. Directors, Executive Officers and Corporate Governance

The information required by Item 10 is incorporated by reference to the definitive Kinsale Capital Group, Inc. Proxy Statement to be filed with the SEC not later than 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K.

Item 11. Executive Compensation

The information required by Item 11 is incorporated by reference to the definitive Kinsale Capital Group, Inc. Proxy Statement to be filed with the SEC not later than 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The information required by Item 12 is incorporated by reference to the definitive Kinsale Capital Group, Inc. Proxy Statement to be filed with the SEC not later than 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K.

Item 13. Certain Relationships and Related Transactions, and Director Independence

The information required by Item 13 is incorporated by reference to the definitive Kinsale Capital Group, Inc. Proxy Statement to be filed with the SEC not later than 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K.

Item 14. Principal Accounting Fees and Services

Our independent registered public accounting firm is KPMG, LLP, Richmond, VA, Auditor Firm ID: 185.

The information required by Item 14 is incorporated by reference to the definitive Kinsale Capital Group, Inc. Proxy Statement to be filed with the SEC not later than 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K.

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PART IV

Item 15. Exhibits and Financial Statement Schedules

The following consolidated financial statements of Kinsale Capital Group, Inc. and subsidiaries are filed as part of this report under Item 8 — Financial Statements and Supplementary Data:

	Page
1. Audited Consolidated Financial Statements
Management's Report on Internal Control Over Financial Reporting	64
Reports of Independent Registered Public Accounting Firm	64
Consolidated Balance Sheets as of December 31, 2021 and 2020	68
Consolidated Statements of Income and Comprehensive Income for the Years Ended December 31, 2021, 2020 and 2019	69
Consolidated Statements of Changes in Stockholders' Equity for the Years Ended December 31, 2021, 2020 and 2019	70
Consolidated Statements of Cash Flows for the Years Ended December 31, 2021, 2020 and 2019	71
Notes to Consolidated Financial Statements	72
2. Financial Statement Schedules
Schedule I - Summary of Investments - Other than Investments in Related Parties	98
Schedule II - Condensed Financial Information of Registrant - Parent Company Only	99
Schedule V - Valuation and Qualifying Accounts	104

All other financial schedules are not required under the related instructions, or are inapplicable and therefore have been omitted.

Item 16. Form 10-K Summary

None.

Exhibit Index

Exhibit Number	Description
3.1	Second Amended and Restated Certificate of Incorporation of Kinsale Capital Group, Inc. (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed with the SEC on May 24, 2018)
3.2	Amended and Restated By-Laws of Kinsale Capital Group, Inc. (incorporated by reference to Exhibit 3.2 to the Company’s Current Report on Form 8-K filed with the SEC on May 24, 2018)
4.1	Description of Securities
10.1+	Kinsale Capital Group, Inc. 2016 Omnibus Incentive Plan (incorporated by reference to Exhibit 10.4 to Amendment No. 1 to the Registration Statement on Form S-1, filed with the SEC on July 18, 2016)
10.1a+	Amendment to Outstanding Awards under the Kinsale Capital Group Inc. 2016 Omnibus Incentive Plan (incorporated by reference to Exhibit 10.1a to the Company's Annual Report on Form 10-K, filed with the SEC on February 28, 2018)
10.2a+	Form of Stock Option Grant Notice and Award Agreement (Employee) (incorporated by reference to Exhibit 10.5a to Amendment No. 1 to the Registration Statement on Form S-1, filed with the SEC on July 18, 2016)
10.2b+	Form of Stock Option Grant Notice and Award Agreement (Director) (incorporated by reference to Exhibit 10.5b to Amendment No. 1 to the Registration Statement on Form S-1, filed with the SEC on July 18, 2016)
10.3+	Form of Restricted Share Award Agreement (incorporated by reference to Exhibit 10.3 to the Company's Annual Report on Form 10-K, filed with the SEC on February 28, 2018)
10.4+	Employment and Arbitration Agreement, dated as of June 4, 2009 between Kinsale Management, Inc. and Michael P. Kehoe (incorporated by reference to Exhibit 10.7 to the Registration Statement on Form S-1, filed with the SEC on July 1, 2016)
10.5	Form of Indemnification Agreement between Kinsale Capital Group, Inc. and each of its directors and executive officers (incorporated by reference to Exhibit 10.8 to Amendment No. 1 to the Registration Statement on Form S-1, filed with the SEC on July 18, 2016)
10.6	Credit Agreement, dated as of May 28, 2019, among Kinsale Capital Group, Inc., as borrower, JPMorgan Chase Bank, N.A., as administrative agent, and the lenders from time to time party thereto (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K, filed with the SEC on May 29, 2019)
21.1	List of subsidiaries of Kinsale Capital Group, Inc.
23.1	Consent of KPMG LLP, Independent Registered Public Accounting Firm
31.1	Certification of principal executive officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification of principal financial officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1*	Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2*	Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS	XBRL Instance Document (the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document)
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

*    This certification is deemed not filed for purposes of section 18 of the Exchange Act, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act or the Exchange Act.

+    Compensatory plan or arrangement

108

Signatures

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized on February 25, 2022.

KINSALE CAPITAL GROUP, INC.

By: /s/ Michael P. Kehoe                                    
  Michael P. Kehoe
  President and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Signature	Title	Date
/s/ Michael P. Kehoe
Michael P. Kehoe	President, Chief Executive Officer and Director	February 25, 2022
	(Principal Executive Officer)
/s/ Bryan P. Petrucelli
Bryan P. Petrucelli	Executive Vice President, Chief Financial Officer and Treasurer	February 25, 2022
	(Principal Financial and Accounting Officer)
/s/ Steven J. Bensinger
Steven J. Bensinger	Director	February 25, 2022
/s/ Teresa P. Chia
Teresa P. Chia	Director	February 25, 2022
/s/ Robert V. Hatcher, III
Robert V. Hatcher, III	Director	February 25, 2022
/s/ Anne C. Kronenberg
Anne C. Kronenberg	Director	February 25, 2022
/s/ Robert Lippincott III
Robert Lippincott III	Director	February 25, 2022
/s/ James J. Ritchie
James J. Ritchie	Director	February 25, 2022
/s/ Frederick L. Russell, Jr.
Frederick L. Russell, Jr.	Director	February 25, 2022
/s/ Gregory M. Share
Gregory M. Share	Director	February 25, 2022

109

EX-4.1

Exhibit 4.1

DESCRIPTION OF SECURITIES

The following description sets forth certain material terms of Kinsale Capital Group, Inc.’s (the “Company,” “we,” “us” and “our”) common stock, which is registered under Section 12(b) of the Securities Exchange Act of 1934, as amended. The following description is intended as a summary, and is qualified in its entirety by reference to our second amended and restated certificate of incorporation (our “Charter”) and our amended and restated by-laws (“By-Laws”), which are filed with the Securities and Exchange Commission and are exhibits to this Annual Report on Form 10-K, and the Delaware General Corporation Law (the “DGCL”).

Description Common Stock

All holders of our common stock are entitled to the same rights and privileges, as described below:

Authorized Capital Stock

We are authorized to issue up to 400,000,000 shares of common stock, par value $0.01 per share. Our common stock is listed on the New York Stock Exchange under the trading symbol “KNSL.”

Voting Rights

Each holder of our common stock is entitled to one vote for each share on all matters submitted to a vote of stockholders, including the election of directors. Holders of our common stock do not have cumulative voting rights in the election of directors.

Our By-Laws provide that each director will be elected by a majority of the votes cast with respect to such person, either in person or represented by properly authorized proxy, at each annual meeting at which a quorum is present; provided, that, each director will be elected by a plurality of the votes cast in the case of a contested election.

Dividend Rights

Subject to the prior rights of holders of any then-outstanding shares of our preferred stock, holders of our common stock are entitled to receive ratably any dividends that may be declared from time to time by our Board of Directors out of funds legally available therefor.

Liquidation Rights

Subject to the prior rights of our creditors and the satisfaction of any liquidation preference granted to the holders of any then-outstanding shares of our preferred stock, in the event of our liquidation, dissolution or winding up, holders of our common stock will be entitled to share ratably in all assets legally available for distribution to stockholders.

Preemptive Rights

Holders of our common stock are not entitled to preemptive or subscription rights.

Anti-takeover Effects of Certain Provisions of Delaware Law, our Charter and our By-Laws

Our Charter and By-Laws contain provisions that are intended to enhance the likelihood of continuity and stability in the composition of our Board of Directors and that could make it more difficult to acquire control of our company by means of a tender offer, an open market purchase, a proxy contest or otherwise. These provisions may discourage coercive takeover practices or inadequate takeover bids and are also designed to encourage persons seeking to acquire control of us to first negotiate with our Board of Directors, which we believe may result in an improvement of the terms of any such acquisition in favor of our stockholders. However, they also give our Board of Directors the power to discourage acquisitions that some stockholders may favor or may consider in their best interests. A summary of these provisions is set forth below.

Election of Directors

Our Charter provides that each director will be elected at each annual meeting of stockholders for a term expiring at the next succeeding annual meeting of stockholders and that each director will remain in office until his or her successor is duly elected or qualified, or until his or her earlier death, resignation, retirement, disqualification or removal.

If the number of directors is increased, any additional director elected to fill a newly elected directorship will hold office for a term expiring at the next annual meeting of stockholders. In no case will a decrease in the number of directors shorten the term of any incumbent director.

Vacancies Filled by the Board

Our Charter provides that, subject to the terms of any one or more classes or series of preferred stock then outstanding, any vacancy in our Board of Directors whether from an increase in the size of the board or otherwise will be filled only by a majority of the directors then in office, even if less than a quorum, or by a sole remaining director.

Calling of Special Meetings of Stockholders

Our Charter and By-Laws provide that special meetings of our stockholders for any purpose or purposes may be called at any time only (1) by the chairman of our Board of Directors, (2) by our chief executive officer (or, in the absence of a chief executive officer, our president) or (3) pursuant to a resolution adopted by a majority of our Board of Directors. Stockholders do not have the authority to call a special meeting of stockholders.

Advance Notice of Stockholder Nominations and Proposals

Our By-Laws establish an advance notice procedure for stockholder proposals to be brought before an annual meeting of stockholders, including proposed nominations of candidates for election to our Board of Directors. Stockholders at an annual meeting are only able to consider proposals or nominations specified in the notice of meeting or brought before the meeting by or at the direction of our Board of Directors, or by a stockholder who was a stockholder of record on the record date for the meeting, who is entitled to vote at the meeting and who has delivered timely written notice in proper form to our secretary of the stockholder’s intention to bring such business before the meeting. These provisions could have the effect of delaying stockholder actions until the next stockholder meeting (i.e., by precluding the conduct of certain business at the current annual meeting if the proper procedures are not followed) that are favored by the holders of a majority of our outstanding voting securities or may discourage or deter a potential acquirer from conducting a solicitation of proxies to elect its own slate of directors or otherwise attempting to obtain control of us.

EX-21.1

Exhibit 21.1

SUBSIDIARIES OF KINSALE CAPITAL GROUP, INC.

Subsidiary	Jurisdiction of Incorporation or Formation
Kinsale Insurance Company	Arkansas
Kinsale Management, Inc.	Delaware
Aspera Insurance Services, Inc.	Virginia
Kinsale Real Estate, Inc.	Delaware
2001 Maywill, LLC	Delaware

EX-23.1

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

The Board of Directors

Kinsale Capital Group, Inc.:

We consent to the incorporation by reference in the registration statements No. 333-233041 on Form S-3ASR and No. 333-212815 on Form S-8 of our reports dated February 25, 2022, with respect to the consolidated financial statements and financial statement schedules I, II, and V of Kinsale Capital Group, Inc. and the effectiveness of internal control over financial reporting.

/s/ KPMG LLP

Richmond, Virginia

February 25, 2022

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Michael P. Kehoe, certify that:

1.I have reviewed this annual report on Form 10-K of Kinsale Capital Group, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

February 25, 2022	/s/ Michael P. Kehoe
	Michael P. Kehoe
	President and Chief Executive Officer
	(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Bryan P. Petrucelli, certify that:

1.I have reviewed this annual report on Form 10-K of Kinsale Capital Group, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

February 25, 2022	/s/ Bryan P. Petrucelli
	Bryan P. Petrucelli
	Executive Vice President, Chief Financial Officer and Treasurer
	(Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350

In connection with the Annual Report on Form 10-K of Kinsale Capital Group, Inc. (the "Company") for the period ended December 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Michael P. Kehoe, President and Chief Executive Officer of the Company, certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

February 25, 2022	/s/ Michael P. Kehoe
	Michael P. Kehoe
	President and Chief Executive Officer
	(Principal Executive Officer)

EX-32.2

Exhibit 32.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350

In connection with the Annual Report on Form 10-K of Kinsale Capital Group, Inc. (the "Company") for the period ended December 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Bryan P. Petrucelli, Executive Vice President, Chief Financial Officer and Treasurer of the Company, certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

February 25, 2022	/s/ Bryan P. Petrucelli
	Bryan P. Petrucelli
	Executive Vice President, Chief Financial Officer and Treasurer
	(Principal Financial Officer)

XML

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2021	Feb. 17, 2022	Jun. 30, 2021
Document and Entity Information [Abstract]
Entity Registrant Name	KINSALE CAPITAL GROUP, INC.
Trading Symbol	KNSL
Entity Listing, Description	Common Stock, par value $0.01 per share
Entity Address, Address Line One	2035 Maywill Street
Entity Address, Address Line Two	Suite 100
Entity Address, City or Town	Richmond
Entity Address, State or Province	VA
Entity Address, Postal Zip Code	23230
City Area Code	804
Local Phone Number	289-1300
Entity Incorporation, State or Country Code	DE
Entity Central Index Key	0001669162
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-37848
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		22,840,083
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Public Float			$ 3,540,691,287
Security Exchange Name	NYSE
Entity Tax Identification Number	98-0664337
ICFR Auditor Attestation Flag	true
Auditor Name	KPMG, LLP
Auditor Location	Richmond, VA
Auditor Firm ID	185
Documents Incorporated by Reference	Portions of the registrant’s definitive proxy statement relating to its 2022 annual meeting of stockholders (the "2022 Proxy Statement") are incorporated by reference into Part III of this Annual Report on Form 10-K. The 2022 Proxy Statement will be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K.

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Investments:
Fixed-maturity securities available-for-sale, at fair value (amortized cost: $1,371,519 – 2021; $1,031,817 – 2020)	$ 1,392,066	$ 1,081,800
Equity securities, at fair value (cost: $118,895 – 2021; $98,758 – 2020)	172,611	129,662
Total investments	1,564,677	1,211,462
Cash and cash equivalents	121,040	77,093
Investment income due and accrued	7,658	6,637
Premiums receivable, net	71,004	48,641
Reinsurance recoverables	122,970	93,215
Ceded unearned premiums	33,679	24,265
Deferred policy acquisition costs, net of ceding commissions	41,968	31,912
Intangible assets	3,538	3,538
Deferred income tax asset, net	2,109	0
Other assets	57,012	50,133
Total assets	2,025,655	1,546,896
Liabilities:
Gross reserves for unpaid losses and loss adjustment expenses, beginning of year	881,344	636,013
Unearned premiums	347,730	260,986
Payable to reinsurers	16,112	12,672
Accounts payable and accrued expenses	23,250	13,651
Credit facility	42,696	42,570
Deferred income tax liability, net	0	4,648
Other liabilities	15,188	118
Total liabilities	1,326,320	970,658
Commitments and contingencies
Stockholders' equity:
Common stock, $0.01 par value, 400,000,000 shares authorized, 22,834,377 shares issued and outstanding at December 31, 2021; 22,757,251 shares issued and outstanding at December 31, 2020	228	228
Additional paid-in capital	295,040	291,315
Retained earnings	385,942	243,315
Accumulated other comprehensive income	18,125	41,380
Stockholders' equity	699,335	576,238
Total liabilities and stockholders' equity	$ 2,025,655	$ 1,546,896

XML

Consolidated Balance Sheets - (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Investments:
Fixed maturity securities available-for-sale, amortized cost	$ 1,371,519	$ 1,031,817
Equity securities - cost	$ 118,895	$ 98,758
Stockholders' equity:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, shares issued (in shares)	22,834,377	22,757,251
Common stock, shares outstanding (in shares)	22,834,377	22,757,251

XML

Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues:
Gross written premiums	$ 764,373	$ 552,814	$ 389,694
Ceded written premiums	(104,164)	(74,595)	(47,633)
Net written premiums	660,209	478,219	342,061
Change in unearned premiums	(77,330)	(65,465)	(59,080)
Net earned premiums	582,879	412,754	282,981
Net investment income	31,048	26,110	20,133
Change in the fair value of equity securities	22,812	16,855	12,389
Net realized investment gains	2,828	3,533	359
Other income	212	634	26
Total revenues	639,779	459,886	315,888
Expenses:
Losses and loss adjustment expenses	324,415	263,802	169,563
Underwriting, acquisition and insurance expenses	124,900	94,296	70,217
Other expenses	1,663	1,375	57
Total expenses	450,978	359,473	239,837
Income before income taxes	188,801	100,413	76,051
Income tax expense	36,142	11,994	12,735
Net income	152,659	88,419	63,316
Other comprehensive income (loss):
Change in unrealized (losses) gains on available-for-sale investments, net of taxes	(23,255)	27,862	14,774
Total comprehensive income	$ 129,404	$ 116,281	$ 78,090
Earnings per share:
Basic	$ 6.73	$ 3.96	$ 2.94
Diluted	$ 6.62	$ 3.87	$ 2.86
Weighted-average common shares outstanding:
Basic	22,693	22,319	21,528
Diluted	23,062	22,852	22,136

XML

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance, shares at Dec. 31, 2018	21,242,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued, shares	742,000
Stock-based compensation, shares	229,000
Restricted shares withheld for taxes, shares	(7,000)
Balance, shares at Dec. 31, 2019	22,206,000
Balance at Dec. 31, 2018	$ 263,986	$ 212	$ 158,485	$ 106,545	$ (1,256)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock, net of issuance costs	65,879	8	65,871
Issuance of stock under stock-based compensation plan	2,750	2	2,748
Stock-based compensation expense	2,742		2,742
Restricted shares withheld for taxes	(617)		(617)
Dividends declared	(6,950)			(6,950)
Other comprehensive income (loss), net of income tax	14,774				14,774
Net income	63,316			63,316
Balance at Dec. 31, 2019	$ 405,880	222	229,229	162,911	13,518
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued, shares	311,000
Stock-based compensation, shares	252,000
Restricted shares withheld for taxes, shares	(12,000)
Balance, shares at Dec. 31, 2020	22,757,251
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of new accounting standard for credit losses | Accounting Standards Update 2016-13 [Member]	$ 78			78
Issuance of common stock, net of issuance costs	56,698	3	56,695
Issuance of stock under stock-based compensation plan	3,622	3	3,619
Stock-based compensation expense	3,575		3,575
Restricted shares withheld for taxes	(1,803)		(1,803)
Dividends declared	(8,093)			(8,093)
Other comprehensive income (loss), net of income tax	27,862				27,862
Net income	88,419			88,419
Balance at Dec. 31, 2020	$ 576,238	228	291,315	243,315	41,380
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation, shares	90,000
Restricted shares withheld for taxes, shares	(13,000)
Balance, shares at Dec. 31, 2021	22,834,377
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of stock under stock-based compensation plan	$ 982	0	982
Stock-based compensation expense	4,844		4,844
Restricted shares withheld for taxes	(2,101)		(2,101)
Dividends declared	(10,032)			(10,032)
Other comprehensive income (loss), net of income tax	(23,255)				(23,255)
Net income	152,659			152,659
Balance at Dec. 31, 2021	$ 699,335	$ 228	$ 295,040	$ 385,942	$ 18,125

XML

Consolidated Statements of Changes in Stockholders' Equity (Parentheticals) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]
Dividends declared, per share	$ 0.44	$ 0.36	$ 0.32

XML

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating activities:
Net income	$ 152,659	$ 88,419	$ 63,316
Adjustments to reconcile net income to net cash provided by operating activities:
Net unrealized gains on equity securities	(22,812)	(16,855)	(12,389)
Net investment gains	(2,828)	(3,533)	(359)
Deferred tax (benefit) expense	(576)	616	(125)
Depreciation and amortization	2,308	1,574	682
Stock compensation expense	4,844	3,575	2,742
Change in operating assets and liabilities:
Investment income due and accrued	(1,021)	(1,894)	(960)
Premiums receivable, net	(22,363)	(14,158)	(10,230)
Reserves for unpaid loss and loss adjustment expenses	245,331	175,955	90,906
Unearned premiums	86,744	73,612	59,124
Reinsurance balances, net	(35,729)	(23,267)	(13,246)
Deferred policy acquisition costs	(10,056)	(8,348)	(8,763)
Income taxes (recoverable) payable	(3,882)	(1,611)	1,221
Accounts payable and accrued expenses	10,102	3,087	2,972
Other	4,321	2,802	3,466
Net cash provided by operating activities	407,042	279,974	178,357
Investing Activities:
Purchase of property and equipment	(5,920)	(32,875)	(19,622)
Sale of property and equipment	0	5,077	0
Purchases - fixed-maturity securities	(654,922)	(530,732)	(306,203)
Purchases - equity securities	(24,867)	(36,822)	(29,887)
Sales - fixed-maturity securities	113,006	119,749	35,526
Sales - equity securities	4,617	2,367	21,459
Maturities and calls - fixed-maturity securities	216,131	93,803	67,934
Net cash used in investing activities	(351,955)	(379,433)	(230,793)
Financing activities:
Proceeds from issuance of common stock, net of issuance costs	0	56,698	65,879
Proceeds from credit facility	0	25,700	17,300
Debt issuance costs	0	0	(628)
Payroll taxes withheld and remitted on share-based payments	(2,101)	(1,803)	(617)
Common stock issued, stock options exercised	982	3,622	2,750
Dividends paid	(10,021)	(8,073)	(6,929)
Net cash provided by (used in) financing activities	(11,140)	76,144	77,755
Net change in cash and cash equivalents	43,947	(23,315)	25,319
Cash and cash equivalents at beginning of period	77,093	100,408	75,089
Cash and cash equivalents at end of period	$ 121,040	$ 77,093	$ 100,408

XML

Description of business	12 Months Ended
	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of business	Description of businessKinsale Capital Group, Inc., an insurance holding company, is a Delaware corporation that was formed in 2009 and conducts its operations through its wholly-owned subsidiaries (referred to as "Kinsale" or, with its subsidiaries, the "Company"). Kinsale Capital Group, Inc. writes excess and surplus lines insurance on a non-admitted basis principally through its insurance subsidiary, Kinsale Insurance Company ("Kinsale Insurance"), which is authorized to write business in 50 states, the District of Columbia, the Commonwealth of Puerto Rico and the U.S. Virgin Islands. Kinsale Capital Group, Inc. also markets certain products through its subsidiary, Aspera Insurance Services, Inc. ("Aspera"), an insurance broker.

XML

Summary of significant accounting policies

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Summary of significant accounting policies

Summary of significant accounting policies

Principles of consolidation

The accompanying consolidated financial statements include the accounts of Kinsale Capital Group, Inc. and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. Certain prior year amounts have been reclassified to conform to the current year's presentation.

Use of estimates

The preparation of consolidated financial statements in conformity with U.S. generally accepted accounting principles ("U.S. GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities, if any, at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Management periodically reviews its estimates and assumptions. These reviews include evaluating the adequacy of reserves for unpaid losses and loss adjustment expenses, allowance for credit losses and uncollectible reinsurance, fair value of investments, as well as evaluating the investment portfolio for credit impairments.

Cash and cash equivalents

The Company considers all highly liquid investments with an original maturity of three months or less to be cash equivalents.

Short-term investments

Short-term investments are carried at cost, which approximates fair value. Short-term investments have maturities greater than three months but less than one year at the date of purchase. There were no short-term investments at December 31, 2021 or December 31, 2020.

Fixed-maturity and equity securities

Fixed-maturity securities are classified as available-for-sale and reported at fair value. Unrealized gains and losses on these securities are excluded from earnings but are recorded as a separate component of other comprehensive income and stockholders' equity, net of deferred income taxes.

Equity securities are reported at fair value. Changes in unrealized gains and losses in fair value of these investments are recognized in net income.

The Company regularly reviews all its available-for-sale investments with unrealized losses to assess whether the decline in the fair value is deemed to be a credit loss. See Note 2 for further discussion regarding the determination of credit losses.

Interest on fixed-maturity securities is credited to earnings as it accrues. Premiums and discounts are amortized or accreted using the effective interest method over the lives of the related fixed maturities, or to the earliest call date for securities purchased at a premium. This method includes an adjustment for estimated principal prepayments, if any, on asset- and mortgage-backed securities. To the extent that the estimated lives of such securities change as a result of changes in estimated prepayment rates, the adjustments are included in net investment income using the retrospective method.

Dividends on equity securities are included in earnings on the ex-dividend date.

Realized gains and losses on disposition of investments are based on specific identification of the investments sold on the trade date.

Reinsurance

Reinsurance premiums, commissions, and ceded unearned premiums on reinsured business are accounted for on a basis consistent with that used in accounting for the original policies issued and the terms of the reinsurance contracts. The Company receives ceding commissions in accordance with certain reinsurance treaties. The ceding commissions are capitalized and amortized as a reduction of underwriting, acquisition and insurance expenses.

Reinsurance recoverables represent paid losses and loss adjustment expenses and reserves for unpaid losses and loss adjustment expenses ceded to reinsurers that are subject to reimbursement under reinsurance treaties. The method for determining reinsurance recoverables for unpaid losses and loss adjustment expenses involves reviewing actuarial estimates of gross unpaid losses and loss adjustment expenses to determine the Company's ability to cede unpaid losses and loss adjustment expenses under the Company's existing reinsurance contracts. This method is continually reviewed and updated and any resulting adjustments are reflected in earnings in the period identified. See Note 8 for a further discussion of the Company's reinsurance program.

Premiums receivable, net

Premiums receivable balances are carried at face value, net of any allowance for credit losses. The allowance for credit losses represents an estimate of amounts considered uncollectible based on the Company’s assessment of the collectability of receivables that are past due. The Company recorded an allowance for credit losses of $3.4 million and $3.1 million at December 31, 2021 and 2020, respectively, and believes that all other amounts due are collectible.

Deferred policy acquisition costs, net of ceding commissions

The Company defers commissions, net of ceding commissions, and certain other costs that are directly related to the successful acquisition of insurance contracts. All eligible costs are capitalized and charged to expense in proportion to premium earned over the estimated policy life. To the extent that unearned premiums on existing policies are not adequate to cover the related costs and expenses, referred to as a premium deficiency, deferred policy acquisition costs are charged to earnings. The Company considers anticipated investment income in determining whether a premium deficiency exists.

Property and equipment, net

Property and equipment are stated at cost less accumulated depreciation. Depreciation of property and equipment is calculated using the straight-line method over the estimated useful lives of the assets. The estimated useful lives range from 39 years for the building and parking deck, 15 to 20 years for land improvements, 7 to 10 years for furniture and equipment, and 3 to 7 years for electronic data processing hardware and software.

Property and equipment are included in "other assets" in the accompanying consolidated balance sheets and consists of the following:

	December 31,
	2021		2020
	(in thousands)
Building	$	33,101	$	31,675
Parking deck	5,072		5,072
Land	3,068		3,068
Equipment	3,143		2,770
Software	7,849		4,815
Furniture and fixtures	2,158		1,731
Land improvements	474		317
	54,865		49,448
Accumulated depreciation	(5,570)		(3,262)
Total property and equipment, net	$	49,295	$	46,186

During 2020, the Company sold a portion of both the land and parking deck for approximately $6.5 million to a real estate developer for the development of an apartment building. At December 31, 2020, the Company received $5.0 million of the proceeds from the sale and is expected to receive the remaining $1.5 million upon completion of the apartment building. This receivable is included in "other assets" on the accompanying consolidated balance sheet.

Intangible assets

Intangible assets are recorded at fair value at the date of acquisition. The Company's intangible assets are comprised solely of indefinite-lived intangible assets, which arose from regulatory approvals granted by the various state insurance departments to write insurance business in the respective states on a non-admitted basis. In accordance with U.S. GAAP, amortization of indefinite-lived intangible assets is not permitted. Indefinite-lived intangible assets are tested for impairment during the fourth quarter on an annual basis, or earlier if there is reason to suspect that their values may have been diminished or impaired. There were no impairments recognized in 2021, 2020, or 2019. In addition, as of December 31, 2021, no triggering events occurred that suggested an updated review was necessary.

Reserves for unpaid losses and loss adjustment expenses

Reserves for unpaid losses and loss adjustment expenses represent management's best estimate of ultimate unpaid cost of all reported and unreported losses and loss adjustment expenses incurred prior to the financial statement date. The estimates are based on an actuarial method that uses management’s initial expected loss ratios, expected reporting patterns for losses based on industry data and the Company’s actual reported losses and loss adjustment expenses. All estimates are regularly reviewed and, as experience develops and new information becomes known, the reserves for unpaid losses and loss adjustment expenses are adjusted as necessary. Such adjustments are reflected in the results of operations in the period in which they are determined. Although management believes that the reserves for losses and loss adjustment expenses are reasonable, due to the inherent uncertainty in estimating reserves for unpaid losses and loss adjustment expenses, it is possible that the Company’s actual incurred losses and loss adjustment expenses will not develop in a manner consistent with the assumptions inherent in the determination of these reserves. If actual liabilities exceed recorded amounts, there will be an increase to the Company’s reserves resulting in a reduction in net income and stockholders’ equity in the period in which the deficiency is identified. Furthermore, management may determine that recorded reserves are more than adequate to cover expected losses which will result in a reduction to the reserves. The Company believes that the reserves for unpaid losses and loss adjustment expenses at December 31, 2021 and 2020 are adequate and represent a reasonable estimate of the Company's future obligations. See Note 7 for a further discussion of reserves for unpaid losses and loss adjustment expenses.

Revenue recognition

Premiums are recognized as revenue ratably over the term of the insurance contracts, net of ceded reinsurance. Unearned premiums are calculated on a daily pro rata basis.

Income taxes

Deferred income tax assets and liabilities are determined based on the differences between the recorded amounts and the tax bases of assets and liabilities, using enacted tax rates expected to be in effect during the year in which the basis differences reverse. The effect on deferred taxes of a change in tax rates is recognized in income in the period in which such change was enacted. Valuation allowances on deferred tax assets are estimated based on the Company's assessment of the realizability of such amounts. Valuation allowances are recorded when it is more likely than not that some portion, or all, of the deferred tax assets will not be realizable.

The Company provides for uncertain tax positions, and the related interest and penalties, based upon management’s assessment of whether a tax benefit is more likely than not to be sustained upon examination by tax authorities. To the extent that the anticipated tax outcome of these uncertain tax positions changes, such changes in estimate will impact the income tax provision in the period in which such determination is made. The Company recognizes accrued interest and penalties related to uncertain tax positions as a component of income tax expense.

The Company uses the portfolio approach to release stranded tax effects in accumulated other comprehensive income ("AOCI") related to its available-for-sale fixed-maturity securities. Under this approach, stranded tax effects remaining in AOCI are released only when the entire portfolio of the available-for-sale fixed-maturity securities are liquidated, sold or extinguished.

Commitments and contingencies

Liabilities for loss contingencies, arising from noninsurance policy claims, assessments, litigation, fines, and penalties and other sources, are recorded when it is probable that a liability has been incurred and the amount of the assessment and/or remediation can be reasonably estimated. Legal costs incurred in connection with loss contingencies are expensed as incurred.

Fair value of financial instruments

Fair value is estimated for each class of financial instrument based on the framework established in the fair value accounting guidance. This guidance requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Fair value hierarchy disclosures are based on the quality of inputs used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements).

See Note 3 for further details regarding fair value disclosures.

Stock-based compensation

Stock-based compensation is expensed based upon the estimated fair value of employee stock awards. Compensation cost for awards of equity instruments to employees is measured based on the grant-date fair value of those awards and compensation expense is recognized over the service period that the awards vest. Forfeitures of stock-based compensation awards are recognized as they occur. See Note 9 for further discussion and related disclosures regarding stock-based compensation.

Recently adopted accounting pronouncements

Accounting Standards Update ("ASU") 2016-13, Financial Instruments – Credit Losses (Topic 326)

On June 16, 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-13, "Financial Instruments - Credit Losses (Topic 326)" to provide more useful information about the expected credit losses on financial instruments. The update requires a financial asset measured at amortized cost to be presented at the net amount expected to be collected by means of an allowance for credit losses that runs through net income. Credit losses relating to available-for-sale fixed-

maturity securities must also be recorded through an allowance for credit losses, which is limited to the amount by which fair value is below amortized cost. The measurement of credit losses on available-for-sale securities is similar under previous U.S. GAAP, but the update requires the use of the allowance account through which amounts can be reversed, rather than through an irreversible write-down. The FASB has issued additional ASUs on Topic 326 that do not change the core principle of the guidance in ASU 2016-13 but clarify certain aspects of it.

Effective January 1, 2020, the Company adopted this ASU using the modified-retrospective approach and recorded a cumulative effect adjustment to beginning retained earnings. The adoption of this ASU resulted in the recognition of an allowance for credit loss related to the Company’s reinsurance recoverables. However, since the Company enters into contracts with reinsurers that have A.M. Best ratings of “A” (Excellent) or better, the allowance was not material to the Company’s consolidated financial statements.

ASU 2019-12, Income Taxes - Simplifying the Accounting for Income Taxes

In December 2019, the FASB issued updated guidance for the accounting for income taxes. The updated guidance is intended to simplify the accounting for income taxes by removing several exceptions contained in existing guidance and amending other existing guidance to simplify several income tax accounting matters. Effective January 1, 2021, the Company adopted ASU 2019-12 using a modified-retrospective approach. The adoption of ASU 2019-12 did not have a material impact on the Company's consolidated financial statements.

Prospective accounting pronouncements

There are no other prospective accounting standards which, upon their effective date, would have a material impact on the Company's consolidated financial statements.

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Investments

12 Months Ended

Dec. 31, 2021

Investments [Abstract]

Investments

Investments

Available-for-sale investments

The following tables summarize the Company’s available-for-sale investments at December 31, 2021 and 2020:

	December 31, 2021
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	6,936	$	—	$	(89)	$	6,847
Obligations of states, municipalities and political subdivisions	216,375		12,139		(469)		228,045
Corporate and other securities	450,594		11,714		(3,821)		458,487
Asset-backed securities	299,810		2,217		(252)		301,775
Residential mortgage-backed securities	340,804		1,804		(4,923)		337,685
Commercial mortgage-backed securities	57,000		2,433		(206)		59,227
Total fixed-maturity investments	$	1,371,519	$	30,307	$	(9,760)	$	1,392,066

	December 31, 2020
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
Fixed maturities:
Obligations of states, municipalities and political subdivisions	$	216,181	$	14,792	$	(67)	$	230,906
Corporate and other securities	294,854		21,840		(86)		316,608
Asset-backed securities	236,813		4,230		(382)		240,661
Residential mortgage-backed securities	217,859		4,938		(141)		222,656
Commercial mortgage-backed securities	66,110		4,886		(27)		70,969
Total fixed-maturity investments	$	1,031,817	$	50,686	$	(703)	$	1,081,800

Available-for-sale investments in a loss position

The Company regularly reviews all its available-for-sale investments with unrealized losses to assess whether the decline in the fair value is deemed to be a credit loss. The Company considers a number of factors in completing its review of credit losses, including the extent to which a security's fair value has been below cost and the financial condition of an issuer. In addition to specific issuer information, the Company also evaluates the current market and interest rate environment. Generally, a change in a security’s value caused by a change in the market or interest rate environment does not constitute a credit loss.

For fixed-maturity securities, the Company also considers whether it intends to sell the security or if it is more likely than not that it will be required to sell the security before recovery and the ability to recover all amounts outstanding when contractually due. When assessing whether it intends to sell a fixed-maturity security or if it is likely to be required to sell a fixed-maturity security before recovery of its amortized cost, the Company evaluates facts and circumstances including, but not limited to, decisions to reposition the investment portfolio, potential sales of investments to meet cash flow needs and potential sales of investments to capitalize on favorable pricing.

For fixed-maturity securities where a decline in fair value is below the amortized cost basis and the Company intends to sell the security, or it is more likely than not that the Company will be required to sell the security before recovery of its amortized cost, an impairment is recognized in net income based on the fair value of the security at the time of assessment. For fixed-maturity securities that the Company does not intend to sell or for which it is more likely than not that the Company would not be required to sell before recovery of its amortized cost, the Company compares the estimated present value of the cash flows expected to be collected to the amortized cost of the security. The extent to which the estimated present value of the cash flows expected to be collected is less than the amortized cost of the security represents the credit-related portion of the impairment, which is recognized in net income through an allowance for credit losses. Any remaining decline in fair value represents the noncredit portion of the impairment, which is recognized in other comprehensive income.

The Company reports investment income due and accrued separately from fixed-maturity securities, available for sale, and has elected not to measure an allowance for credit losses for investment income due and accrued. Investment income due and accrued is written off through earnings at the time the issuer of the bond defaults or is expected to default on payments.

The following tables summarize gross unrealized losses and estimated fair value for available-for-sale investments by length of time that the securities have continuously been in an unrealized loss position:

	December 31, 2021
	Less than 12 Months				12 Months or Longer				Total
	Estimated Fair Value		Gross Unrealized Losses		Estimated Fair Value		Gross Unrealized Losses		Estimated Fair Value		Gross Unrealized Losses
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	6,847	$	(89)	$	—	$	—	$	6,847	$	(89)
Obligations of states, municipalities and political subdivisions	23,870		(469)		—		—		23,870		(469)
Corporate and other securities	188,522		(3,718)		1,092		(103)		189,614		(3,821)
Asset-backed securities	136,669		(204)		4,452		(48)		141,121		(252)
Residential mortgage-backed securities	260,251		(4,329)		17,968		(594)		278,219		(4,923)
Commercial mortgage-backed securities	10,773		(206)		—		—		10,773		(206)
Total fixed-maturity investments	$	626,932	$	(9,015)	$	23,512	$	(745)	$	650,444	$	(9,760)

At December 31, 2021, the Company held 234 fixed-maturity securities with a total estimated fair value of $650.4 million and gross unrealized losses of $9.8 million. Of those securities, 10 were in a continuous unrealized loss position for greater than one year. As discussed above, the Company regularly reviews all fixed-maturity securities within its investment portfolio to determine whether a credit loss has occurred. Based on the Company's review as of December 31, 2021, unrealized losses were caused by interest rate changes or other market factors and were not credit-specific issues. At December 31, 2021, 81.5% of the Company’s fixed-maturity securities were rated "A-" or better and all of Company's fixed-maturity securities made expected coupon payments under the contractual terms of the securities. Based on its review, the Company concluded that there were no credit losses from fixed-maturity securities with unrealized losses for the year ended December 31, 2021.

	December 31, 2020
	Less than 12 Months				12 Months or Longer				Total
	Estimated Fair Value		Gross Unrealized Holding Losses		Estimated Fair Value		Gross Unrealized Holding Losses		Estimated Fair Value		Gross Unrealized Holding Losses
	(in thousands)
Fixed maturities:
Obligations of states, municipalities and political subdivisions	$	6,412	$	(67)	$	—	$	—	$	6,412	$	(67)
Corporate and other securities	3,829		(86)		—		—		3,829		(86)
Asset-backed securities	57,750		(149)		23,825		(233)		81,575		(382)
Residential mortgage-backed securities	46,869		(129)		266		(12)		47,135		(141)
Commercial mortgage-backed securities	4,971		(27)		—		—		4,971		(27)
Total fixed-maturity investments	$	119,831	$	(458)	$	24,091	$	(245)	$	143,922	$	(703)

Contractual maturities of available-for-sale fixed-maturity securities

The amortized cost and estimated fair value of available-for-sale fixed-maturity securities at December 31, 2021 are summarized, by contractual maturity, as follows:

	Amortized		Estimated
	Cost		Fair Value
	(in thousands)
Due in one year or less	$	6,742	$	6,822
Due after one year through five years	185,273		189,497
Due after five years through ten years	226,707		232,197
Due after ten years	255,183		264,863
Asset-backed securities	299,810		301,775
Residential mortgage-backed securities	340,804		337,685
Commercial mortgage-backed securities	57,000		59,227
Total fixed maturities	$	1,371,519	$	1,392,066

Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties, and the lenders may have the right to put the securities back to the borrower.

Net investment income

The following table presents the components of net investment income:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Interest:
Taxable bonds	$	25,654	$	20,493	$	14,853
Municipal bonds (tax exempt)	3,501		3,618		3,692
Cash equivalents and short-term investments	12		262		842
Dividends on equity securities	3,962		3,512		2,136
Gross investment income	33,129		27,885		21,523
Investment expenses	(2,081)		(1,775)		(1,390)
Net investment income	$	31,048	$	26,110	$	20,133

Realized investment gains and losses

The following table presents realized investment gains and losses:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Fixed-maturity securities:
Realized gains	$	2,944	$	4,022	$	567
Realized losses	(3)		(383)		(79)
Net realized gains from fixed-maturity securities	2,941		3,639		488
Equity securities:
Realized gains	97		—		556
Realized losses	(210)		(119)		(688)
Net realized losses from equity securities	(113)		(119)		(132)
Short-term securities - realized gains	—		13		3
Net realized investment gains	$	2,828	$	3,533	$	359

Change in net unrealized (losses) gains on fixed-maturity securities

The change in net unrealized (losses) gains for fixed-maturity securities was $(29.4) million, $35.3 million, and $18.7 million for the years ended December 31, 2021, 2020, and 2019 respectively.

Insurance – statutory deposits

The Company had invested assets with a carrying value of $6.7 million and $6.9 million on deposit with state regulatory authorities at December 31, 2021 and 2020, respectively.

Payable for investments purchased

The Company recorded a payable for investments purchased, not yet settled, of $15.0 million at December 31, 2021. The payable balance was included in the "other liabilities" line item of the consolidated balance sheet.

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Fair value measurements

12 Months Ended

Dec. 31, 2021

Fair Value Disclosures [Abstract]

Fair value measurements

Fair value measurements

Fair value is estimated for each class of financial instrument based on the framework established in the fair value accounting guidance. Fair value is defined as the price in the principal market that would be received for an asset or paid to transfer a liability to facilitate an orderly transaction between market participants on the measurement date. Market participants are assumed to be independent, knowledgeable, able and willing to transact an exchange and not acting under duress. Fair value hierarchy disclosures are based on the quality of inputs used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). Adjustments to transaction prices or quoted market prices may be required in illiquid or disorderly markets in order to estimate fair value.

The three levels of the fair value hierarchy are defined as follows:

Level 1 - Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities traded in active markets.

Level 2 - Inputs to the valuation methodology include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and market-corroborated inputs.

Level 3 - Inputs to the valuation methodology are unobservable for the asset or liability and are significant to the fair value measurement.

Fair values of the Company's investment portfolio are estimated using unadjusted prices obtained by its investment accounting vendor from nationally recognized third-party pricing services, where available. Values for U.S. Treasuries and exchange traded funds are generally based on Level 1 inputs which use quoted prices in active markets for identical assets. For other fixed-maturity securities and non-redeemable preferred stock, the pricing vendors use a pricing methodology involving the market approach, including pricing models which use prices and relevant market information regarding a particular security or securities with similar characteristics to establish a valuation. The estimates of fair value of these investments are included in the amounts disclosed as Level 2. For those investments where significant inputs are unobservable, the Company's investment accounting vendor obtains valuations from pricing vendors or brokers using the market approach and income approach valuation techniques and are disclosed as Level 3.

Management performs several procedures to ascertain the reasonableness of investment values included in the consolidated financial statements at December 31, 2021 and 2020, including 1) obtaining and reviewing internal control reports from the Company's investment accounting vendor that assess fair values from third party pricing services, 2) discussing with the Company's investment accounting vendor its process for reviewing and validating pricing obtained from third party pricing services and 3) reviewing the security pricing received from the Company's investment accounting vendor and monitoring changes in unrealized gains and losses at the individual security level. The Company has evaluated the various types of securities in its investment portfolio to determine an appropriate fair value hierarchy level based upon trading activity and the observability of market inputs.

The following tables present the balances of assets measured at fair value on a recurring basis as of December 31, 2021 and 2020, by level within the fair value hierarchy.

	December 31, 2021
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	6,847	$	—	$	—	$	6,847
Obligations of states, municipalities and political subdivisions	—		228,045		—		228,045
Corporate and other securities	—		458,487		—		458,487
Asset-backed securities	—		301,775		—		301,775
Residential mortgage-backed securities	—		337,685		—		337,685
Commercial mortgage-backed securities	—		59,227		—		59,227
Total fixed maturities	6,847		1,385,219		—		1,392,066
Equity securities:
Exchange traded funds	123,389		—		—		123,389
Non-redeemable preferred stock	—		49,222		—		49,222
Total equity securities	123,389		49,222		—		172,611
Total	$	130,236	$	1,434,441	$	—	$	1,564,677

	December 31, 2020
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets
Fixed maturities:
Obligations of states, municipalities and political subdivisions	$	—	$	230,906	$	—	$	230,906
Corporate and other securities	—		316,608		—		316,608
Asset-backed securities	—		240,661		—		240,661
Residential mortgage-backed securities	—		222,656		—		222,656
Commercial mortgage-backed securities	—		70,969		—		70,969
Total fixed maturities	—		1,081,800		—		1,081,800
Equity securities:
Exchange traded funds	98,050		—		—		98,050
Non-redeemable preferred stock	—		31,612		—		31,612
Total equity securities	98,050		31,612		—		129,662
Total	$	98,050	$	1,113,412	$	—	$	1,211,462

There were no assets or liabilities measured at fair value on a nonrecurring basis as of December 31, 2021 or 2020.

The Company holds cash equivalents that are managed as part of its investment portfolio and, due to the short-term maturities of these assets, the carrying value of these investments approximates fair value. The Company held cash equivalents of $44.7 million and $13.7 million at December 31, 2021 and 2020, respectively. In addition, the estimated fair value of the Credit Facility approximated its carrying value as of December 31, 2021 and 2020. See Note 11 for further information regarding the Credit Facility.

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Deferred policy acquisition costs

12 Months Ended

Dec. 31, 2021

Deferred Policy Acquisition Costs Disclosures [Abstract]

Deferred policy acquisition costs

Deferred policy acquisition costs

The following table presents the amounts of policy acquisition costs deferred and amortized for the years ended:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Balance, beginning of year	$	31,912	$	23,564	$	14,801
Policy acquisition costs deferred:
Direct commissions	111,463		80,682		56,841
Ceding commissions	(28,965)		(18,879)		(12,373)
Other underwriting and policy acquisition costs	6,191		4,478		3,727
Policy acquisition costs deferred	88,689		66,281		48,195
Amortization of net policy acquisition costs	(78,633)		(57,933)		(39,432)
Balance, end of year	$	41,968	$	31,912	$	23,564

Amortization of net policy acquisition costs is included in the line item "Underwriting, acquisition and insurance expenses" in the accompanying consolidated statements of income and comprehensive income.

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Underwriting, acquisition and insurance expenses

12 Months Ended

Dec. 31, 2021

Underwriting, Acquisition and Insurance Expenses [Abstract]

Underwriting, acquisition and insurance expenses

Underwriting, acquisition and insurance expenses

Underwriting, acquisition and insurance expenses consist of the following:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Underwriting, acquisition and insurance expenses incurred:
Direct commissions	$	98,847	$	69,922	$	48,382
Ceding commissions	(25,702)		(16,145)		(12,347)
Other operating expenses	51,755		40,519		34,182
Total	$	124,900	$	94,296	$	70,217

Other operating expenses within underwriting, acquisition and insurance expenses included salaries, employee benefits and bonus expense of $48.9 million, $35.9 million and $27.8 million, for the years ended December 31, 2021, 2020 and 2019, respectively.

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Income taxes

12 Months Ended

Dec. 31, 2021

Income Tax Disclosure [Abstract]

Income taxes

Income taxes

The Company’s subsidiaries file a consolidated U.S. federal income tax return. Under a tax sharing agreement, Kinsale collects from or refunds to its subsidiaries the amount of taxes determined as if Kinsale and the subsidiaries filed separate returns. The Company is no longer subject to income tax examination by tax authorities for the years ended before January 1, 2018.

Income tax expense includes the following components for the years ending December 31, 2021, 2020 and 2019:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Current federal income tax expense	$	36,718	$	11,378	$	12,860
Deferred federal income tax (benefit) expense	(576)		616		(125)
Income tax expense	$	36,142	$	11,994	$	12,735

The Company paid $40.6 million, $13.0 million and $11.6 million in federal income taxes during the years ended December 31, 2021, 2020 and 2019, respectively. Current income taxes recoverable was $5.1 million and $1.2 million at December 31, 2021 and 2020, respectively and included in "other assets" in the accompanying consolidated balance sheets.

The prevailing federal income tax rate was 21% in 2021, 2020 and 2019. The Company’s effective income tax rate on income before income taxes differs from the prevailing federal income tax rate and is summarized as follows:

	Year ended December 31,
	2021		2020		2019
	(in thousands)
Income tax expense at federal income tax rate	$	39,648	$	21,087	$	15,971
Stock options exercised	(2,148)		(7,634)		(2,411)
Restricted stock award vesting	(677)		(658)		(153)
Tax-exempt investment income	(546)		(565)		(577)
Other	(135)		(236)		(95)
Total	$	36,142	$	11,994	$	12,735

The significant components of the net deferred tax asset (liability) are summarized as follows:

	December 31,
	2021		2020
	(in thousands)
Deferred tax assets:
Unpaid losses and loss adjustment expenses	$	15,723	$	11,736
Unearned premiums	13,190		9,942
State operating loss carryforwards	4,554		3,833
Stock compensation	1,140		865
Allowance for credit losses	712		649
Other	278		254
Deferred tax assets before allowance	35,597		27,279
Less: valuation allowance	(4,159)		(3,491)
Total deferred tax assets	31,438		23,788
Deferred tax liabilities:
Unrealized gains on fixed-maturity securities	4,315		10,497
Unrealized gains on equity securities	11,368		6,552
Deferred policy acquisition costs, net of ceding commissions	8,813		6,701
Property and equipment	2,741		2,433
Transition adjustment for loss reserve discount	1,025		1,281
Intangible assets	743		743
Other	324		229
Total deferred tax liabilities	29,329		28,436
Net deferred tax asset (liability)	$	2,109	$	(4,648)

At December 31, 2021 and 2020, the Company had state net operating losses ("NOLs") of $96.1 million and $80.9 million, respectively. The state NOLs are available to offset future taxable income or reduce taxes payable and begin expiring in 2029. 

Management evaluates the need for a valuation allowance related to its deferred tax assets. At December 31, 2021 and 2020, the Company recorded a tax valuation allowance equal to the state NOLs and the deferred tax assets, net of existing deferred tax liabilities that were expected to reverse in future periods, related to certain state jurisdictions. No other valuation allowances were established against the Company’s deferred tax assets at December 31, 2021 and 2020, as the Company believes that it is more likely than not that the remaining deferred tax assets will be realized given the carry back availability, reversal of existing temporary differences and future taxable income.

The Company did not have any material uncertain tax positions in 2021 or 2020. Management is not aware of any events that would give rise to any uncertain tax positions.

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Reserves for unpaid losses and loss adjustment expenses

12 Months Ended

Dec. 31, 2021

Liability for Claims and Claims Adjustment Expense [Abstract]

Reserves for unpaid losses and loss adjustment expenses

Reserves for unpaid losses and loss adjustment expenses

The reserves for unpaid losses and loss adjustment expenses represent the Company's estimated ultimate cost of all unreported and reported but unpaid insured claims and the cost to adjust these losses that have occurred as of or before the balance sheet date. Reserves are estimated using individual case-basis valuations of reported claims and statistical analyses. Case reserves are established for individual claims that have been reported to the Company, typically by the Company's insureds or their brokers. Based on the information provided, case reserves are established by estimating the ultimate losses from the claim, including defense costs associated with the ultimate settlement of the claim. Incurred-but-not-reported ("IBNR") reserves are determined using actuarial methods to estimate losses that have occurred but have not yet been reported to the Company. The incurred Bornhuetter-Ferguson actuarial method ("BF method") is used to arrive at the Company's loss reserve estimates for each line of business. This method estimates the reserves based on the initial expected loss ratio and expected reporting patterns for losses. Because the Company has a limited number of years of loss experience compared to the period over which losses are expected to be reported, the Company uses industry and peer-group data, in addition to its own data, as a basis for selecting its expected reporting patterns.

As part of the reserving process, the Company reviews historical data and considers the effect of various factors on claims development patterns including polices written on a "claims made" versus "occurrence" basis. Policies written on a claims made basis provide coverage to the insured only for losses incurred during the coverage period, and only if the claim was reported during a specified reporting period. Policies written on an occurrence basis provide coverage to the insured for liabilities arising from events occurring during the term of the policy, regardless of when a claim is actually made. Accordingly, claims related to policies written on an occurrence basis may arise many years after a policy has lapsed. Property losses, while written on an occurrence basis, are generally reported within a short time from the date of loss, and in most instances, property claims are settled and paid within a relatively short period of time.

The following table presents a reconciliation of consolidated beginning and ending reserves for unpaid losses and loss adjustment expenses:

	December 31,
	2021		2020		2019
	(in thousands)
Gross reserves for unpaid losses and loss adjustment expenses, beginning of year	$	636,013	$	460,058	$	369,152
Less: reinsurance recoverable on unpaid losses	83,730		69,792		55,389
Adoption of new accounting standard for credit losses	—		(282)		—
Net reserves for unpaid losses and loss adjustment expenses, beginning of year	552,283		390,548		313,763
Incurred losses and loss adjustment expenses:
Current year	356,401		277,140		178,986
Prior year	(31,986)		(13,338)		(9,423)
Total net losses and loss adjustment expenses incurred	324,415		263,802		169,563
Payments:
Current year	23,765		27,664		19,054
Prior year	89,150		74,403		74,006
Total payments	112,915		102,067		93,060
Net reserves for unpaid losses and loss adjustment expenses, end of year	763,783		552,283		390,266
Reinsurance recoverable on unpaid losses, net of allowance	117,561		83,730		69,792
Gross reserves for unpaid losses and loss adjustment expenses, end of year	$	881,344	$	636,013	$	460,058

During the year ended December 31, 2021, prior accident years developed favorably by $32.0 million, of which $33.7 million was attributable to the 2020 accident year and was related to a lower-than-expected level of reported losses. Although the Company does not have any significant direct COVID-19 exposure, the related disruption in the court system and the general economy

created additional uncertainty in estimating loss reserves in 2020. As a result, 2020 accident year actuarial assumptions were adjusted in 2020 to increase IBNR to account for this additional uncertainty. The Company's current outlook is more favorable than in the prior year and, based on observed trends, the Company reevaluated and adjusted certain assumptions for accident year 2020 in 2021 to reflect the favorable experience. In addition, $3.8 million of favorable development was attributable to accident year 2019 due to reported losses emerging at lower levels than expected. This favorable development was offset in part by adverse development, mostly attributable to the 2016 and 2018 accident years due to modest adjustments in actuarial assumptions.

Current accident year incurred losses and loss adjustment expenses for the year ended December 31, 2021 included $8.6 million of catastrophe losses primarily related to Hurricane Ida and winter storms Uri and Viola in Texas.

During the year ended December 31, 2020, our net incurred losses for accident years 2019 and prior developed favorably by $13.3 million. This favorable development included $10.5 million for the 2019 accident year and $1.8 million for the 2018 accident year. This favorable development was primarily due to reported losses emerging at a lower level than expected, largely across the other liability and excess lines of business.

Current year incurred losses and loss adjustment expenses for the year ended December 31, 2020 included $23.2 million of catastrophe losses primarily related to Hurricane Laura, Hurricane Sally and the California wildfires.

During the year ended December 31, 2019, our net incurred losses for accident years 2018 and prior developed favorably by $9.4 million. This favorable development included $13.0 million for the 2018 accident year, $1.6 million for the 2017 accident year. This favorable development was primarily due to reported losses emerging at a lower level than expected, on the other liability and products liability lines of business. The favorable development was offset by adverse development of $5.2 million for the 2011 through 2015 accident years. The unfavorable development was primarily attributable to the other liability occurrence line of business. This adverse development largely resulted from management’s decision to lengthen the actuarial loss development factors to provide for emergence of reported losses over a longer period of time based on trends observed in loss experience, which added a modest amount of conservatism to the Company’s IBNR reserves.

Incurred and Paid Claims Development

The following is information about incurred and paid claims development as of December 31, 2021, net of reinsurance, as well as cumulative claim frequency and the total of IBNR liabilities plus expected development on reported claims included within the net incurred claims amounts. The development and claims duration tables below exclude commuted multi-line quota-share reinsurance treaty ("MLQS") contracts, which would distort development patterns related to those transactions. Cumulative number of reported claims is reported on a per claim basis.

The information about incurred and paid claims development for the years ended December 31, 2012 to December 31, 2020, is presented as unaudited supplementary information.

Property

	Incurred Claims and Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,										As of December 31, 2021
Accident Year	2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021		Total of IBNR Liabilities Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
	($ in thousands)
2017	$	12,473	$	11,705	$	11,676	$	11,631	$	11,606	$	—	1,041
2018			11,559		12,004		12,698		12,704		26		650
2019					14,914		13,909		15,572		154		642
2020							40,612		37,939		1,234		2,294
2021									36,531		9,323		1,034
							Total		$	114,352

	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,
Accident Year	2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021
	($ in thousands)
2017	$	9,938	$	11,233	$	11,602	$	11,608	$	11,605
2018			9,132		11,646		12,599		12,660
2019					9,852		12,581		13,996
2020							19,897		30,321
2021									14,268
							Total		82,850
			All outstanding liabilities before 2017, net of reinsurance						—
			Liabilities for claims and claim adjustment expenses, net of reinsurance						$	31,502

Historical Claims Duration

The following is supplementary information about average historical claims duration as of December 31, 2021:

Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	(Unaudited)
Years	1		2		3		4		5
Property	62.5	%	19.0	%	6.6	%	0.3	%	—	%

Casualty - Claims Made

	Incurred Claims and Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,																				As of December 31, 2021
Accident Year	2012 Unaudited		2013 Unaudited		2014 Unaudited		2015 Unaudited		2016 Unaudited		2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021		Total of IBNR Liabilities Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
2012	$	7,913	$	5,749	$	4,205	$	3,102	$	2,845	$	2,477	$	2,314	$	2,207	$	2,136	$	1,867	$	136	138
2013			15,238		11,639		9,113		7,917		7,002		6,463		6,128		6,087		6,215		356		228
2014					18,847		14,289		11,748		11,217		10,948		10,988		10,620		10,266		638		273
2015							18,883		16,777		14,896		13,583		13,942		13,548		13,414		937		258
2016									19,170		14,693		14,675		14,322		13,583		13,602		1,431		310
2017											18,116		17,097		16,120		15,794		14,989		2,434		371
2018													22,429		20,234		18,612		17,057		5,108		464
2019															34,693		29,056		26,426		11,037		550
2020																	55,630		44,641		31,667		772
2021																			84,018		74,017		1,035
																	Total		$	232,495

	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,
Accident Year	2012 Unaudited		2013 Unaudited		2014 Unaudited		2015 Unaudited		2016 Unaudited		2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021
2012	$	153	$	475	$	877	$	1,024	$	1,090	$	1,882	$	1,946	$	1,946	$	1,946	$	1,732
2013			499		1,915		4,436		5,070		5,320		5,439		5,482		5,612		5,843
2014					435		1,865		5,039		6,385		8,290		9,415		9,491		9,628
2015							217		4,496		7,563		9,238		11,372		11,522		12,142
2016									1,158		3,015		6,907		9,839		11,381		12,105
2017											340		4,897		8,252		10,484		11,357
2018													507		5,030		8,931		10,330
2019															2,487		6,005		10,123
2020																	1,002		7,446
2021																			1,146
																	Total		81,852
	All outstanding liabilities before 2012, net of reinsurance																		56
	Liabilities for claims and claim adjustment expenses, net of reinsurance																		$	150,699

Casualty - Occurrence

	Incurred Claims and Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,																				As of December 31, 2021
Accident Year	2012 Unaudited		2013 Unaudited		2014 Unaudited		2015 Unaudited		2016 Unaudited		2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021		Total of IBNR Liabilities Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
2012	$	16,977	$	17,436	$	18,803	$	20,401	$	20,579	$	22,001	$	22,401	$	23,223	$	23,197	$	22,271	$	997	597
2013			30,616		28,771		28,037		29,039		31,731		33,248		33,973		33,128		33,002		2,273		872
2014					47,805		40,668		38,049		36,678		39,313		41,859		42,434		41,367		4,374		1,230
2015							59,717		51,739		49,122		52,100		54,697		54,090		54,090		7,108		1,700
2016									61,440		55,680		53,549		55,534		57,401		60,861		10,378		1,518
2017											71,126		67,151		68,985		70,641		71,117		18,282		1,843
2018													86,157		78,331		78,386		83,952		33,875		1,918
2019															112,266		109,994		108,138		63,673		2,006
2020																	154,619		136,212		119,143		1,761
2021																			200,598		190,069		1,332
																	Total		$	811,608

	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,
Accident Year	2012 Unaudited		2013 Unaudited		2014 Unaudited		2015 Unaudited		2016 Unaudited		2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021
2012	$	757	$	4,441	$	7,850	$	11,238	$	14,382	$	16,474	$	19,383	$	20,707	$	21,408	$	20,805
2013			1,099		4,469		7,957		14,890		21,348		26,715		28,248		29,610		30,116
2014					698		3,081		8,489		17,576		23,771		31,026		34,338		35,807
2015							941		3,161		12,685		28,385		37,690		41,724		44,161
2016									1,099		6,015		17,225		28,924		34,437		43,311
2017											1,581		9,352		22,407		37,736		46,025
2018													2,638		10,995		22,860		35,138
2019															3,944		16,687		30,518
2020																	2,400		8,673
2021																			3,205
																	Total		297,759
					All outstanding liabilities before 2012, net of reinsurance														329
			Liabilities for claims and claim adjustment expenses, net of reinsurance																$	514,178

Historical Claims Duration

The following is supplementary information about average historical claims duration as of December 31, 2021:

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	(Unaudited)
Years	1		2		3		4		5		6		7		8		9		10
Casualty - claims made	4.9	%	20.5	%	25.7	%	12.6	%	9.9	%	12.3	%	2.4	%	1.1	%	1.9	%	—	%
Casualty - occurrence	2.4	%	9.1	%	15.0	%	20.4	%	14.4	%	13.0	%	7.6	%	4.5	%	2.3	%	—	%

Reconciliation of Incurred and Paid Claims Development to the Liability for Unpaid Claims and Claim Adjustment Expenses

The reconciliation of the net incurred and paid claims development tables to the liability for unpaid claims and claim adjustment expenses in the consolidated statement of financial position is as follows:

(in thousands)	December 31, 2021
Net outstanding liabilities
Property	$	31,502
Casualty - claims made	150,699
Casualty - occurrence	514,178
Liabilities for unpaid claims and claim adjustment expenses, net of reinsurance	696,379
Reinsurance recoverable on unpaid claims
Property	16,777
Casualty - claims made	16,581
Casualty - occurrence	84,203
Total reinsurance recoverable on unpaid claims	117,561
Unallocated claims adjustment expenses	67,404
Gross liability for unpaid claims and claim adjustment expense	$	881,344

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Reinsurance

12 Months Ended

Dec. 31, 2021

Reinsurance Disclosures [Abstract]

Reinsurance

Reinsurance

The Company purchases reinsurance from other insurance companies ("reinsurers") in order to limit its exposure to large losses and enable it to underwrite policies with sufficient limits to meet policyholder needs. In a reinsurance transaction, an insurance company transfers, or cedes, part or all of its exposure to the reinsurer that receives a portion of the premium. The ceding of insurance does not legally discharge the Company from its primary liability for the full amount of the policy coverage, and therefore the Company will be required to pay the loss and bear collection risk if the reinsurer fails to meet its obligations under the reinsurance agreement.

The following table summarizes the effect of reinsurance on premiums written and earned:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Written:
Direct	$	764,373	$	552,814	$	389,569
Assumed	—		—		125
Ceded	(104,164)		(74,595)		(47,633)
Net written	$	660,209	$	478,219	$	342,061
Earned:
Direct	$	677,630	$	479,181	$	330,464
Assumed	—		21		104
Ceded	(94,751)		(66,448)		(47,587)
Net earned	$	582,879	$	412,754	$	282,981

Incurred losses and loss adjustment expenses were net of reinsurance recoverables (ceded incurred losses and loss adjustment expenses) of $49.7 million, $42.0 million and $27.2 million for the years ended December 31, 2021, 2020 and 2019, respectively.

Reinsurance balances

The following table presents reinsurance recoverables on paid and unpaid losses as of December 31, 2021 and 2020:

	December 31, 2021		December 31, 2020
	(in thousands)
Reinsurance recoverables on paid losses	$	5,409	$	9,485
Reinsurance recoverables on unpaid losses	117,561		83,730
Reinsurance recoverables	$	122,970	$	93,215

Credit risk exists with reinsurance ceded to the extent that any reinsurer is unable to meet the obligations assumed under the reinsurance agreements. Allowances are established for amounts deemed uncollectible. The Company evaluates the financial condition of its reinsurers and monitors concentration of credit risk arising from its exposure to individual reinsurers. All reinsurance recoverables are from companies with A.M. Best ratings of "A" (Excellent) or better. To further reduce credit exposure to reinsurance recoverable balances, the Company has received letters of credit from certain reinsurers that are not authorized as reinsurers under U.S. state insurance regulations. The Company recorded an allowance for credit losses of $0.4 million and $0.3 million related to its reinsurance balances at December 31, 2021 and 2020, respectively; however, the deterioration in the credit quality of existing reinsurers or disputes over reinsurance agreements could result in future charges.

At December 31, 2021, reinsurance recoverables on paid and unpaid losses from the Company’s five largest reinsurers were $28.0 million, $27.4 million, $16.3 million, $10.2 million and $9.5 million, representing 74.3% of the total balance.

At December 31, 2021, unearned premiums ceded to five reinsurers were $8.4 million, $5.5 million, $3.5 million, $3.3 million and $3.3 million, representing 71.6% of the total balance.

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Stockholders' Equity

12 Months Ended

Dec. 31, 2021

Stockholders' Equity Attributable to Parent [Abstract]

Stockholders' equity

Stockholders’ equity

Capital Stock

The Company’s authorized capital stock consists of 400,000,000 shares of common stock, par value $0.01 per share, and 100,000,000 shares of preferred stock, par value $0.01 per share. There were no shares of preferred stock issued or outstanding at December 31, 2021 or 2020.

Public Offerings

On August 7, 2020, the Company completed an underwritten public offering and sold and issued 310,500 shares of its common stock at a price of $190.00 per share. After deducting underwriting discounts and commissions and offering expenses, the Company received net proceeds of $56.7 million.

On August 12, 2019, the Company completed an underwritten public offering and sold and issued 741,750 shares of its common stock at a price of $93.00 per share. After deducting underwriter discounts and commissions and offering expenses, the Company received net proceeds from the offering of approximately $65.9 million.

Equity-based Compensation

On July 27, 2016, the Kinsale Capital Group, Inc. 2016 Omnibus Incentive Plan (the "2016 Incentive Plan") became effective. The 2016 Incentive Plan, which is administered by the Compensation, Nominating and Corporate Governance Committee of the Company's Board of Directors, provides for grants of stock options, restricted stock, restricted stock units and other stock-based awards to officers, employees, directors, independent contractors and consultants. The number of shares of common stock available for issuance under the 2016 Incentive Plan may not exceed 2,073,832.

The Company recognized total equity-based compensation expense of $4.8 million, $3.6 million and $2.7 million for the years ended December 31, 2021, 2020 and 2019, respectively.

Stock Options

On July 27, 2016, the Board of Directors approved, and the Company granted, 1,036,916 stock options with an exercise price equal to the initial public offering price of $16.00 per share. The options have a maximum contractual term of 10 years and vested in 4 equal annual installments following the date of the grant. The weighted average grant date fair value of options granted during 2016 was $2.71 per share.

The value of the options granted was estimated at the date of grant using the Black-Scholes pricing model using the following assumptions:

Risk-free rate of return	1.26	%
Dividend yield	1.25	%
Expected share price volatility(1)	18.50	%
Expected life in years(2)	6.3 years

(1)     Expected volatility was based on the Company’s competitors within the industry.

(2)     Expected life was calculated using the simplified method, which was an average of the contractual term of the option and its ordinary vesting period, as the Company did not have sufficient historical data for determining the expected term of our stock option awards.

A summary of option activity as of December 31, 2021 and changes during the year then ended is presented below:

	Number of Shares	Weighted-average exercise price		Weighted-average remaining years of contractual life	Aggregate intrinsic value (in thousands)
Outstanding at December 31, 2020	387,738	$	16.00
Granted	—	—
Forfeited	(934)	16.00
Exercised	(61,371)	16.00
Outstanding at December 31, 2021	325,433	$	16.00	4.6	$	72,210
Exercisable at December 31, 2021	325,433	$	16.00	4.6	$	72,210

The total intrinsic value of options exercised was $10.4 million during the year ended December 31, 2021 and $37.0 million during the year ended December 31, 2020.

Restricted Stock Awards

During 2021, the Board of Directors approved, and the Company granted, restricted stock awards under the 2016 Incentive Plan. The restricted stock awards were valued on the date of grant and will vest over a period of 1 to 4 years corresponding to the anniversary date of the grants. The fair value of restricted stock awards was determined based on the closing trading price of the Company’s common stock on the grant date or, if no common stock was traded on the grant date, the last preceding date for which there was a sale of common stock. Except for restrictions placed on the transferability of restricted stock, holders of unvested restricted stock have full stockholder’s rights, including voting rights and the right to receive cash dividends. Unvested restricted stock awards and accrued dividends, if any, are forfeited upon the termination of service to or employment with the Company.

A summary of restricted stock activity under the equity compensation plans for the year ended is as follows:

	December 31, 2021
	Number of Shares	Weighted Average Grant Date Fair Value per Share
Nonvested outstanding at the beginning of the period	108,392	$	97.40
Granted	35,870	$	185.00
Vested	(41,121)	$	87.82
Forfeited	(7,157)	$	128.11
Nonvested outstanding at the end of the period	95,984	$	131.94

Employees surrender restricted stock awards to pay for withholding tax obligations resulting from any vesting of those awards. During the year ended December 31, 2021, restricted stock awards withheld for taxes in connection with the vesting of those awards totaled 12,958.

The per share weighted average grant-date fair value of the Company's restricted stock awards granted during the years ended December 31, 2021, 2020, and 2019 was $185.00, $147.45 and $80.59, respectively. The fair value of restricted stock awards that vested during the year ended December 31, 2021, 2020 and 2019 was $6.8 million, $5.8 million and $2.1 million respectively. As of December 31, 2021, the Company had $9.1 million of total unrecognized stock-based compensation expense expected to be charged to earnings over a weighted-average period of 2.6 years.

Subsequent Events

The Board of Directors granted 3,528 restricted stock awards on January 1, 2022 under the 2016 Incentive Plan to the Company’s non-employee directors. The restricted stock awards had a fair value on the date of grant of $237.89 per share and will vest on the first anniversary date of the grant.

On February 14, 2022, the Company’s Board of Directors declared a cash dividend of $0.13 per share of common stock. This dividend is payable on March 14, 2022 to all stockholders of record on March 2, 2022.

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Earnings per share

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Earnings per share

Earnings per share

The following table represents a reconciliation of the numerator and denominator of the basic and diluted earnings per share computations contained in the consolidated financial statements:

	Year ended December 31,
	2021		2020		2019
	(in thousands, except per share data)
Net income	$	152,659	$	88,419	$	63,316
Weighted average common shares outstanding - basic	22,693		22,319		21,528
Dilutive effect of shares issued under stock compensation arrangements:
Stock options	324		469		570
Restricted stock awards	45		64		38
Total dilutive effect of shares issued under stock compensation arrangements	369		533		608
Weighted average common shares outstanding - diluted	23,062		22,852		22,136
Earnings per common share:
Basic	$	6.73	$	3.96	$	2.94
Diluted	$	6.62	$	3.87	$	2.86

There were 30 thousand, 35 thousand and 54 thousand anti-dilutive stock awards for the years ended December 31, 2021, 2020 and 2019, respectively.

Basic earnings per share was computed by dividing the earnings attributable to the common stockholders by the weighted average number of shares of common stock outstanding during the period. Diluted earnings per share was computed by dividing earnings attributable to common stockholders by the weighted average number of shares of common stock outstanding during the period, including potentially dilutive shares of common stock for the period determined using the treasury stock method.

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Credit Agreement

12 Months Ended

Dec. 31, 2021

Debt Disclosure [Abstract]

Credit Agreement

Credit agreement

On May 28, 2019, the Company entered into a Credit Agreement (the “Credit Agreement”) that provided the Company with a $50.0 million senior unsecured revolving credit facility (the “Credit Facility”) and an uncommitted accordion feature that permits the Company to increase the commitments by an additional $30.0 million. The Credit Facility has a maturity of May 28, 2024. Borrowings under the Credit Facility were used to fund construction of the Company’s new headquarters and may also be used for working capital and general corporate purposes.

Loans under the Credit Facility may be subject to varying rates of interest depending on whether the loan is a Eurodollar loan or an alternate base rate (ABR) loan, at the Company's election. Eurodollar loans bear an interest rate per annum equal to adjusted LIBOR for the applicable interest period plus a margin of 1.75%. ABR loans bear an interest rate per annum equal to the higher of the prime rate, the New York Federal Reserve Board Rate or the one-month adjusted LIBOR, plus the applicable margin of 0.75% to 1.75%, depending on which interest option was applicable for the particular ABR loan. At December 31, 2021, there was $42.7 million outstanding under the Credit Facility, net of debt issuance cost of $0.3 million, with a weighted average interest rate of 1.92%. For the years ended December 31, 2021, 2020 and 2019, total interest expense under the Credit Facility was $1.0 million, $1.0 million and $0.2 million, respectively. For the years ended December 31, 2020 and 2019, $0.8 million and $0.2 million of interest expense was capitalized as part of the real estate project under construction, respectively. Interest paid was $0.9 million, $0.8 million and $0.1 million for the years ended December 31, 2021, 2020 and 2019, respectively.

The Credit Agreement also contains representations and warranties and affirmative and negative covenants customary for financings of this type, as well as customary events of default. As of December 31, 2021, the Company was in compliance with all of its financial covenants under the Credit Facility.

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Contingencies	12 Months Ended
	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Contingencies	ContingenciesContingencies arise in the normal conduct of the Company’s operations and are not expected to have a material effect on the Company’s financial condition or results of operations. However, adverse outcomes are possible and could negatively affect the Company’s financial condition and results of operations.

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Employee benefit plan	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Employee benefit plan	Employee benefit planThe Company has established a defined contribution employee retirement plan ("Plan") in accordance with Section 401(k) of the Internal Revenue Code. Expenses related to the Plan were $2.2 million, $1.7 million and $1.3 million in 2021, 2020 and 2019, respectively.

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Other comprehensive income (loss)

12 Months Ended

Dec. 31, 2021

Other Comprehensive Income (Loss), Net of Tax [Abstract]

Other comprehensive income (loss)

Other comprehensive (loss) income

The following table summarizes the components of other comprehensive (loss) income:

	Year Ending December 31,
	2021		2020		2019
	(in thousands)
Unrealized (losses) gains on fixed-maturity securities arising during the period, before income taxes:	$	(26,792)	$	37,387	$	19,190
Income tax benefit (expense)	5,626		(7,851)		(4,029)
Unrealized (losses) gains arising during the period, net of income taxes	(21,166)		29,536		15,161
Less reclassification adjustment:
Net realized investment gains on available-for-sale investments	2,644		2,119		489
Income tax benefit	(555)		(445)		(102)
Reclassification adjustment included in net income	2,089		1,674		387
Other comprehensive (loss) income	$	(23,255)	$	27,862	$	14,774

The sale of an available-for-sale security results in amounts being reclassified from accumulated other comprehensive income to realized gains or losses in current period earnings. The related tax effect of the reclassification adjustment is recorded in income tax expense in current period earnings. See Note 2 for additional information.

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Underwriting information

12 Months Ended

Dec. 31, 2021

Segment Reporting [Abstract]

Underwriting information

Underwriting informationThe Company has one reportable segment, the Excess and Surplus Lines Insurance segment, which primarily offers commercial excess and surplus lines liability and property insurance products through its underwriting divisions. Gross written premiums by underwriting division are presented below:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Commercial:
Small Business	$	112,142	$	83,289	$	63,181
Excess Casualty	109,464		76,715		51,225
Construction	103,540		87,206		71,035
Commercial Property	78,722		51,789		29,115
Allied Health	59,208		37,562		23,962
Products Liability	55,070		38,306		26,333
Life Sciences	41,297		31,027		17,821
General Casualty	36,042		24,591		20,931
Professional Liability	33,226		27,051		20,029
Management Liability	32,163		24,061		14,820
Energy	19,925		16,985		15,371
Environmental	13,584		8,568		5,179
Entertainment	12,396		4,614		2,348
Health Care	11,271		7,666		5,963
Inland Marine	9,703		6,910		3,467
Public Entity	9,207		3,007		580
Commercial Insurance	411		1,757		1,674
Total commercial	737,371		531,104		373,034
Personal:
Personal Insurance	27,002		21,710		16,660
Total	$	764,373	$	552,814	$	389,694

Small Business underwrites commercial general liability on smaller risks with an emphasis on artisan contractors and premises related exposures.

Excess Casualty underwrites excess liability over risks that would fit within the general casualty, construction, products liability and small business divisions. Coverage is written over the Company's primary liability policies as well as those of other insurers. This division also writes excess liability over primary commercial auto liability policies written by other carriers.

Construction underwrites commercial general liability coverage on contractors focusing on new residential construction, residential remodeling and renovation and commercial construction.

Commercial Property underwrites first-party coverage on manufacturing facilities, government and municipal buildings, professional buildings, offices and general commercial properties, vacant properties, as well as entertainment and retail facilities.

Allied Health underwrites commercial general liability, professional liability and excess liability on allied health and social service risks including assisted living facilities, home health care agencies and outpatient medical facilities.

Products Liability underwrites commercial general liability on manufacturers, distributors and importers of a wide array of consumer, commercial and industrial products.

Life Sciences underwrites general liability, products liability and professional liability coverage for manufacturers, distributors and developers of dietary supplements, medical devices, pharmaceuticals, biologics, health and beauty products, durable medical equipment and clinical trials.

General Casualty underwrites general liability and liquor liability on hospitality, habitational and retail risks, among others, with similar premises liability loss exposures. During 2021, certain business previously underwritten by this division is now underwritten by the Entertainment division and prior year amounts have been reclassified to conform to the current year's presentation.

Professional Liability underwrites small-to-medium sized non-medical professional liability risks. The classes of risks include accountants, architects and engineers, financial planners, insurance agents, lawyers, realtors, and certain other professions.

Management Liability underwrites directors and officers liability, employment practices liability and fiduciary liability coverage on a variety of commercial and government risks.

Energy underwrites commercial general liability, pollution liability, professional liability and excess liability on enterprises engaged in the business of energy production or distribution or mining including drillers, lease operators, contractors, product manufacturers and alternative energy.

Environmental underwrites commercial general liability, pollution liability and professional liability on a wide range of commercial risks where environmental exposures exist that are operational in nature or related to the premises.

Entertainment underwrites commercial general liability for small-to-medium sized entertainment classes, including such classes as bowling alleys, campgrounds, escape rooms, fitness centers, museums and paintball facilities, among others. As previously discussed, during 2021, certain business previously underwritten by the General Casualty division is now underwritten by this division and prior year amounts have been reclassified to conform to the current year's presentation.

Health Care underwrites medical professional liability for physicians, surgeons, dentists, chiropractors and podiatrists. Policies cover both individuals and small practice groups.

Inland Marine underwrites a variety of inland marine coverages including builders risk, contractors' equipment, transportation risks and mobile equipment.

Public Entity underwrites law enforcement professional liability and school board liability.

Commercial Insurance underwrites commercial general liability on small accounts, through the Company's wholly-owned broker, Aspera.

Personal Insurance writes homeowners coverage on manufactured homes with catastrophe exposure due to coastal location.

The Company does business with two unaffiliated insurance brokers that generated $137.0 million and $118.8 million of gross written premiums for the year ended December 31, 2021, representing 17.9% and 15.5% of gross written premiums, respectively. No other broker generated 10.0% or more of the gross written premiums for the year ended December 31, 2021.

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Statutory financial information

12 Months Ended

Dec. 31, 2021

Statutory Accounting Practices, Statutory Amount Available for Dividend Payments [Abstract]

Statutory financial information

Statutory financial information

Kinsale Insurance maintains its accounts in conformity with accounting practices prescribed or permitted by state regulatory authorities that vary in certain respects from U.S. GAAP. In converting from statutory accounting principles to U.S. GAAP, typical adjustments include deferral of policy acquisition costs, the inclusion of statutory non-admitted assets and the inclusion of net unrealized gains or losses relating to fixed maturities in stockholders’ equity. The Company does not use any permitted practices that are different from prescribed statutory accounting practices.

Statutory net income and statutory capital and surplus for Kinsale Insurance as of December 31, 2021, 2020, and 2019 and for the years then ended are summarized as follows:

	Year ended December 31,
	2021		2020		2019
	(in thousands)
Statutory net income	$	115,885	$	54,338	$	40,917
Statutory capital and surplus	$	606,910	$	476,066	$	348,811

Kinsale Insurance is subject to risk-based capital ("RBC") requirements. RBC is a method developed by the National Association of Insurance Commissioners ("NAIC") to determine the minimum amount of statutory capital appropriate for an insurance company to support its overall business operations in consideration of its size and risk profile. The formula for determining the amount of RBC is calculated using various factors, weighted based on the perceived degree of risk, which are applied to certain financial balances and financial activity. The adequacy of a company’s actual capital is evaluated by a comparison to the RBC results, as determined by the formula. Companies that do not maintain statutory capital and surplus at a level in excess of the company action level RBC are required to take specified actions. At December 31, 2021 and 2020, actual statutory capital and surplus for Kinsale Insurance substantially exceeded the regulatory requirements. 

Dividend payments to Kinsale from Kinsale Insurance are restricted by state insurance laws as to the amount that may be paid without prior approval of the regulatory authorities of Arkansas. The maximum dividend distribution is limited by Arkansas law to the greater of 10% of policyholder surplus as of December 31 of the previous year or statutory net income, not including realized capital gains, for the previous calendar year. Dividend payments are further limited to that part of available policyholder surplus which is derived from net profits on its business. The maximum dividend distribution that can be paid by Kinsale Insurance during 2022 without prior approval is $114.0 million.

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SEC Schedule, Article 12-15, Summary of Investments - Other than Investments in Related Parties

12 Months Ended

Dec. 31, 2021

SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Abstract]

SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties

Schedule I

KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Summary of Investments—Other than Investments in Related Parties

Type of Investment	Cost or Amortized Cost		Fair Value		Amount at which shown on Balance Sheet
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	6,936	$	6,847	$	6,847
Obligations of states, municipalities and political subdivisions	216,375		228,045		228,045
Corporate and other securities	450,594		458,487		458,487
Asset-backed securities	299,810		301,775		301,775
Residential mortgage-backed securities	340,804		337,685		337,685
Commercial mortgage-backed securities	57,000		59,227		59,227
Total fixed maturities	1,371,519		1,392,066		1,392,066
Equity securities:
Exchange traded funds	70,151		123,389		123,389
Non-redeemable preferred stock	48,744		49,222		49,222
Total equity securities	118,895		172,611		172,611
Total investments	$	1,490,414	$	1,564,677	$	1,564,677

See accompanying Report of Independent Registered Public Accounting Firm.

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Schedule II - Condensed Financial Information of Registrant

12 Months Ended

Dec. 31, 2021

Condensed Financial Information Disclosure [Abstract]

Condensed Financial Information of Parent Company Only Disclosure

Schedule II

KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Condensed Financial Information of Registrant

Balance Sheets (Parent Company Only)

	December 31,
	2021		2020
	(in thousands)
Assets
Cash and cash equivalents	$	14,596	$	8,395
Due from subsidiaries	—		7,792
Investment in subsidiaries	721,369		600,931
Deferred income tax asset, net	934		587
Income taxes recoverable	5,059		1,177
Other assets	314		290
Total assets	$	742,272	$	619,172
Liabilities and Stockholders' Equity
Liabilities:
Accounts payable and accrued expenses	$	121	$	302
Due to subsidiaries	47		—
Credit facility	42,696		42,570
Other liabilities	73		62
Total liabilities	42,937		42,934
Stockholders’ equity:
Common stock	228		228
Additional paid-in capital	295,040		291,315
Retained earnings	385,942		243,315
Accumulated other comprehensive income	18,125		41,380
Stockholders’ equity	699,335		576,238
Total liabilities and stockholders’ equity	$	742,272	$	619,172

See accompanying notes to condensed financial information.

See accompanying Report of Independent Registered Public Accounting Firm.

Schedule II

KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Condensed Financial Information of Registrant

Statements of Income and Comprehensive Income (Parent Company Only)

	Years Ended December 31,
	2021		2020		2019
	(in thousands)
Revenues:
Management fees from subsidiaries	$	7,002	$	5,709	$	4,502
Total revenues	7,002		5,709		4,502
Expenses:
Operating expenses	7,972		6,624		5,215
Other expenses	994		1,332		—
Total expenses	8,966		7,956		5,215
Loss before income taxes	(1,964)		(2,247)		(713)
Income tax benefit	(3,424)		(8,779)		(2,714)
Income before equity in net income of subsidiaries	1,460		6,532		2,001
Equity in net income of subsidiaries	151,199		81,887		61,315
Net income	152,659		88,419		63,316
Other comprehensive (loss) income:
Equity in other comprehensive (losses) earnings of subsidiaries	(23,255)		27,862		14,774
Total comprehensive income	$	129,404	$	116,281	$	78,090

See accompanying notes to condensed financial information.

See accompanying Report of Independent Registered Public Accounting Firm.

Schedule II

KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Condensed Financial Information of Registrant

Statements of Cash Flows (Parent Company Only)

	Years Ended December 31,
	2021		2020		2019
	(in thousands)
Operating activities
Net income	$	152,659	$	88,419	$	63,316
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Deferred tax benefit	(347)		(68)		(150)
Stock compensation expense	4,844		3,575		2,742
Equity in undistributed earnings of subsidiaries	(151,199)		(81,887)		(61,315)
Changes in operating assets and liabilities	3,955		7,520		(14,247)
Dividends received from subsidiary	8,000		—		5,000
Net cash provided by (used in) operating activities	17,912		17,559		(4,654)
Investing activities
Contributions to subsidiary	(571)		(100,034)		(68,391)
Net cash used in investing activities	(571)		(100,034)		(68,391)
Financing activities
Common stock issued, net of transaction costs	—		56,698		65,879
Common stock issued, stock options exercised	982		3,622		2,750
Payroll taxes withheld and remitted on share-based payments	(2,101)		(1,803)		(617)
Dividends paid	(10,021)		(8,073)		(6,929)
Proceeds from credit facility	—		25,700		17,300
Debt issuance costs	—		—		(628)
Net cash (used in) provided by financing activities	(11,140)		76,144		77,755
Net change in cash and cash equivalents	6,201		(6,331)		4,710
Cash and cash equivalents at beginning of year	8,395		14,726		10,016
Cash and cash equivalents at end of year	$	14,596	$	8,395	$	14,726

See accompanying notes to condensed financial information.

See accompanying Report of Independent Registered Public Accounting Firm.

KINSALE CAPITAL GROUP, INC.

Condensed Financial Information of Registrant

Notes to Condensed Financial Information

(Parent Company Only)

1. Accounting policies

Organization

Kinsale Capital Group, Inc. (the "Company"), a Delaware domiciled insurance holding company, was formed on June 3, 2009 for the purpose of acquiring and managing insurance entities.

Basis of presentation

The accompanying condensed financial statements have been prepared using the equity method. Under the equity method, the investment in consolidated subsidiaries is stated at cost plus equity in undistributed earnings of consolidated subsidiaries since the date of acquisition. These condensed financial statements should be read in conjunction with the Company’s consolidated financial statements.

Estimates and assumptions

Preparation of the condensed financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed financial statements and accompanying disclosures. Those estimates are inherently subject to change, and actual results may ultimately differ from those estimates.

Credit agreement

On May 28, 2019, the Company entered into a Credit Agreement (the “Credit Agreement”) that provided the Company with a $50.0 million senior unsecured revolving credit facility (the “Credit Facility”) and an uncommitted accordion feature that permits the Company to increase the commitments by an additional $30.0 million. The Credit Facility has a maturity of May 28, 2024. Borrowings under the Credit Facility were used to fund construction of the Company’s new headquarters and may also be used for working capital and general corporate purposes.

Loans under the Credit Facility may be subject to varying rates of interest depending on whether the loan is a Eurodollar loan or an alternate base rate (ABR) loan, at the Company's election. Eurodollar loans bear an interest rate per annum equal to adjusted LIBOR for the applicable interest period plus a margin of 1.75%. ABR loans bear an interest rate per annum equal to the higher of the prime rate, the New York Federal Reserve Board Rate or the one-month adjusted LIBOR, plus the applicable margin of 0.75% to 1.75%, depending on which interest option was applicable for the particular ABR loan. At December 31, 2021, there was $42.7 million outstanding under the Credit Facility, net of debt issuance cost of $0.3 million, with a weighted average interest rate of 1.92%. For the years ended December 31, 2021, 2020 and 2019, total interest expense under the Credit Facility was $1.0 million, $1.0 million and $0.2 million, respectively. For the years ended December 31, 2020 and 2019, $0.8 million and $0.2 million of interest expense was capitalized as part of the real estate project under construction, respectively. Interest paid was $0.9 million, $0.8 million and $0.1 million for the years ended December 31, 2021, 2020 and 2019, respectively.

The Credit Agreement also contains representations and warranties and affirmative and negative covenants customary for financings of this type, as well as customary events of default. As of December 31, 2021, the Company was in compliance with all of its financial covenants under the Credit Facility.

Dividends from subsidiary

Cash dividends paid to Kinsale Capital Group, Inc. by its wholly-owned subsidiary, Kinsale Insurance Company, were $8.0 million for the year ended December 31, 2021 and $5.0 million for the year ended December 31, 2019. There were no cash dividends paid by the insurance subsidiary for the year ended December 31, 2020.

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Schedule V - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2021

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

Schedule V - Valuation and Qualifying Accounts

Schedule V

KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Valuation and Qualifying Accounts

			Additions		Deductions
(in thousands)	Balance at Beginning of Period (1)		Amounts Charged to Expense		Amounts Written Off or Disposals		Balance at End of Period
Year Ended December 31, 2021:
Allowance for premiums receivable	$	3,087	$	2,189	$	1,885	$	3,391
Valuation allowance for deferred tax assets	3,491		668		—		4,159
Allowance for reinsurance recoverables	282		118		—		400
Year Ended December 31, 2020:
Allowance for premiums receivable	2,345		1,240		498		3,087
Valuation allowance for deferred tax assets	1,592		1,899		—		3,491
Allowance for reinsurance recoverables	282		—		—		282
Year Ended December 31, 2019:
Allowance for premiums receivable	2,615		835		745		2,705
Valuation allowance for deferred tax assets	780		812		—		1,592

See accompanying Report of Independent Registered Public Accounting Firm.

(1) For the year ended December 31, 2020, the balance at the beginning of period included a reduction of $0.4 million to the allowance for premiums receivable and the establishment of an allowance for reinsurance recoverables of $0.3 million, each of which related to the adoption of the new accounting standard for credit losses.

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Summary of significant accounting policies (Policies)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Principles of consolidation

Principles of consolidation

The accompanying consolidated financial statements include the accounts of Kinsale Capital Group, Inc. and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. Certain prior year amounts have been reclassified to conform to the current year's presentation.

Use of estimates

Use of estimatesThe preparation of consolidated financial statements in conformity with U.S. generally accepted accounting principles ("U.S. GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities, if any, at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Management periodically reviews its estimates and assumptions. These reviews include evaluating the adequacy of reserves for unpaid losses and loss adjustment expenses, allowance for credit losses and uncollectible reinsurance, fair value of investments, as well as evaluating the investment portfolio for credit impairments.

Cash and cash equivalents

Cash and cash equivalents

The Company considers all highly liquid investments with an original maturity of three months or less to be cash equivalents.

Short-term investments

Short-term investments

Short-term investments are carried at cost, which approximates fair value. Short-term investments have maturities greater than three months but less than one year at the date of purchase. There were no short-term investments at December 31, 2021 or December 31, 2020.

Fixed maturity and equity securities

Fixed-maturity and equity securities

Fixed-maturity securities are classified as available-for-sale and reported at fair value. Unrealized gains and losses on these securities are excluded from earnings but are recorded as a separate component of other comprehensive income and stockholders' equity, net of deferred income taxes.

Equity securities are reported at fair value. Changes in unrealized gains and losses in fair value of these investments are recognized in net income.

The Company regularly reviews all its available-for-sale investments with unrealized losses to assess whether the decline in the fair value is deemed to be a credit loss. See Note 2 for further discussion regarding the determination of credit losses.

Interest on fixed-maturity securities is credited to earnings as it accrues. Premiums and discounts are amortized or accreted using the effective interest method over the lives of the related fixed maturities, or to the earliest call date for securities purchased at a premium. This method includes an adjustment for estimated principal prepayments, if any, on asset- and mortgage-backed securities. To the extent that the estimated lives of such securities change as a result of changes in estimated prepayment rates, the adjustments are included in net investment income using the retrospective method.

Dividends on equity securities are included in earnings on the ex-dividend date.

Realized gains and losses on disposition of investments are based on specific identification of the investments sold on the trade date.

Reinsurance

Reinsurance

Reinsurance premiums, commissions, and ceded unearned premiums on reinsured business are accounted for on a basis consistent with that used in accounting for the original policies issued and the terms of the reinsurance contracts. The Company receives ceding commissions in accordance with certain reinsurance treaties. The ceding commissions are capitalized and amortized as a reduction of underwriting, acquisition and insurance expenses.

Reinsurance recoverables represent paid losses and loss adjustment expenses and reserves for unpaid losses and loss adjustment expenses ceded to reinsurers that are subject to reimbursement under reinsurance treaties. The method for determining reinsurance recoverables for unpaid losses and loss adjustment expenses involves reviewing actuarial estimates of gross unpaid losses and loss adjustment expenses to determine the Company's ability to cede unpaid losses and loss adjustment expenses under the Company's existing reinsurance contracts. This method is continually reviewed and updated and any resulting adjustments are reflected in earnings in the period identified. See Note 8 for a further discussion of the Company's reinsurance program.

Premiums receivable, net

Premiums receivable, net

Premiums receivable balances are carried at face value, net of any allowance for credit losses. The allowance for credit losses represents an estimate of amounts considered uncollectible based on the Company’s assessment of the collectability of receivables that are past due. The Company recorded an allowance for credit losses of $3.4 million and $3.1 million at December 31, 2021 and 2020, respectively, and believes that all other amounts due are collectible.

Deferred policy acquisition costs, net of ceding commissions

Deferred policy acquisition costs, net of ceding commissions

The Company defers commissions, net of ceding commissions, and certain other costs that are directly related to the successful acquisition of insurance contracts. All eligible costs are capitalized and charged to expense in proportion to premium earned over the estimated policy life. To the extent that unearned premiums on existing policies are not adequate to cover the related costs and expenses, referred to as a premium deficiency, deferred policy acquisition costs are charged to earnings. The Company considers anticipated investment income in determining whether a premium deficiency exists.

Property and equipment, net

Property and equipment, net

Property and equipment are stated at cost less accumulated depreciation. Depreciation of property and equipment is calculated using the straight-line method over the estimated useful lives of the assets. The estimated useful lives range from 39 years for the building and parking deck, 15 to 20 years for land improvements, 7 to 10 years for furniture and equipment, and 3 to 7 years for electronic data processing hardware and software.

Property and equipment are included in "other assets" in the accompanying consolidated balance sheets and consists of the following:

	December 31,
	2021		2020
	(in thousands)
Building	$	33,101	$	31,675
Parking deck	5,072		5,072
Land	3,068		3,068
Equipment	3,143		2,770
Software	7,849		4,815
Furniture and fixtures	2,158		1,731
Land improvements	474		317
	54,865		49,448
Accumulated depreciation	(5,570)		(3,262)
Total property and equipment, net	$	49,295	$	46,186

During 2020, the Company sold a portion of both the land and parking deck for approximately $6.5 million to a real estate developer for the development of an apartment building. At December 31, 2020, the Company received $5.0 million of the proceeds from the sale and is expected to receive the remaining $1.5 million upon completion of the apartment building. This receivable is included in "other assets" on the accompanying consolidated balance sheet.

Intangible assets

Intangible assets

Intangible assets are recorded at fair value at the date of acquisition. The Company's intangible assets are comprised solely of indefinite-lived intangible assets, which arose from regulatory approvals granted by the various state insurance departments to write insurance business in the respective states on a non-admitted basis. In accordance with U.S. GAAP, amortization of indefinite-lived intangible assets is not permitted. Indefinite-lived intangible assets are tested for impairment during the fourth quarter on an annual basis, or earlier if there is reason to suspect that their values may have been diminished or impaired. There were no impairments recognized in 2021, 2020, or 2019. In addition, as of December 31, 2021, no triggering events occurred that suggested an updated review was necessary.

Reserves for unpaid losses and loss adjustment expenses

Reserves for unpaid losses and loss adjustment expensesReserves for unpaid losses and loss adjustment expenses represent management's best estimate of ultimate unpaid cost of all reported and unreported losses and loss adjustment expenses incurred prior to the financial statement date. The estimates are based on an actuarial method that uses management’s initial expected loss ratios, expected reporting patterns for losses based on industry data and the Company’s actual reported losses and loss adjustment expenses. All estimates are regularly reviewed and, as experience develops and new information becomes known, the reserves for unpaid losses and loss adjustment expenses are adjusted as necessary. Such adjustments are reflected in the results of operations in the period in which they are determined. Although management believes that the reserves for losses and loss adjustment expenses are reasonable, due to the inherent uncertainty in estimating reserves for unpaid losses and loss adjustment expenses, it is possible that the Company’s actual incurred losses and loss adjustment expenses will not develop in a manner consistent with the assumptions inherent in the determination of these reserves. If actual liabilities exceed recorded amounts, there will be an increase to the Company’s reserves resulting in a reduction in net income and stockholders’ equity in the period in which the deficiency is identified. Furthermore, management may determine that recorded reserves are more than adequate to cover expected losses which will result in a reduction to the reserves. The Company believes that the reserves for unpaid losses and loss adjustment expenses at December 31, 2021 and 2020 are adequate and represent a reasonable estimate of the Company's future obligations. See Note 7 for a further discussion of reserves for unpaid losses and loss adjustment expenses.

Revenue recognition

Revenue recognition

Premiums are recognized as revenue ratably over the term of the insurance contracts, net of ceded reinsurance. Unearned premiums are calculated on a daily pro rata basis.

Income taxes

Income taxes

Deferred income tax assets and liabilities are determined based on the differences between the recorded amounts and the tax bases of assets and liabilities, using enacted tax rates expected to be in effect during the year in which the basis differences reverse. The effect on deferred taxes of a change in tax rates is recognized in income in the period in which such change was enacted. Valuation allowances on deferred tax assets are estimated based on the Company's assessment of the realizability of such amounts. Valuation allowances are recorded when it is more likely than not that some portion, or all, of the deferred tax assets will not be realizable.

The Company provides for uncertain tax positions, and the related interest and penalties, based upon management’s assessment of whether a tax benefit is more likely than not to be sustained upon examination by tax authorities. To the extent that the anticipated tax outcome of these uncertain tax positions changes, such changes in estimate will impact the income tax provision in the period in which such determination is made. The Company recognizes accrued interest and penalties related to uncertain tax positions as a component of income tax expense.

The Company uses the portfolio approach to release stranded tax effects in accumulated other comprehensive income ("AOCI") related to its available-for-sale fixed-maturity securities. Under this approach, stranded tax effects remaining in AOCI are released only when the entire portfolio of the available-for-sale fixed-maturity securities are liquidated, sold or extinguished.

Commitments and contingencies

Commitments and contingencies

Liabilities for loss contingencies, arising from noninsurance policy claims, assessments, litigation, fines, and penalties and other sources, are recorded when it is probable that a liability has been incurred and the amount of the assessment and/or remediation can be reasonably estimated. Legal costs incurred in connection with loss contingencies are expensed as incurred.

Fair value of financial instruments

Fair value of financial instruments

Fair value is estimated for each class of financial instrument based on the framework established in the fair value accounting guidance. This guidance requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Fair value hierarchy disclosures are based on the quality of inputs used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements).

See Note 3 for further details regarding fair value disclosures.

Stock-based compensation

Stock-based compensation

Stock-based compensation is expensed based upon the estimated fair value of employee stock awards. Compensation cost for awards of equity instruments to employees is measured based on the grant-date fair value of those awards and compensation expense is recognized over the service period that the awards vest. Forfeitures of stock-based compensation awards are recognized as they occur. See Note 9 for further discussion and related disclosures regarding stock-based compensation.

Recently adopted accounting pronouncements

Recently adopted accounting pronouncements

Accounting Standards Update ("ASU") 2016-13, Financial Instruments – Credit Losses (Topic 326)

On June 16, 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-13, "Financial Instruments - Credit Losses (Topic 326)" to provide more useful information about the expected credit losses on financial instruments. The update requires a financial asset measured at amortized cost to be presented at the net amount expected to be collected by means of an allowance for credit losses that runs through net income. Credit losses relating to available-for-sale fixed-

maturity securities must also be recorded through an allowance for credit losses, which is limited to the amount by which fair value is below amortized cost. The measurement of credit losses on available-for-sale securities is similar under previous U.S. GAAP, but the update requires the use of the allowance account through which amounts can be reversed, rather than through an irreversible write-down. The FASB has issued additional ASUs on Topic 326 that do not change the core principle of the guidance in ASU 2016-13 but clarify certain aspects of it.

Effective January 1, 2020, the Company adopted this ASU using the modified-retrospective approach and recorded a cumulative effect adjustment to beginning retained earnings. The adoption of this ASU resulted in the recognition of an allowance for credit loss related to the Company’s reinsurance recoverables. However, since the Company enters into contracts with reinsurers that have A.M. Best ratings of “A” (Excellent) or better, the allowance was not material to the Company’s consolidated financial statements.

ASU 2019-12, Income Taxes - Simplifying the Accounting for Income Taxes

In December 2019, the FASB issued updated guidance for the accounting for income taxes. The updated guidance is intended to simplify the accounting for income taxes by removing several exceptions contained in existing guidance and amending other existing guidance to simplify several income tax accounting matters. Effective January 1, 2021, the Company adopted ASU 2019-12 using a modified-retrospective approach. The adoption of ASU 2019-12 did not have a material impact on the Company's consolidated financial statements.

Prospective accounting pronouncements

Prospective accounting pronouncements

There are no other prospective accounting standards which, upon their effective date, would have a material impact on the Company's consolidated financial statements.

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Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

Property and equipment are included in "other assets" in the accompanying consolidated balance sheets and consists of the following:

	December 31,
	2021		2020
	(in thousands)
Building	$	33,101	$	31,675
Parking deck	5,072		5,072
Land	3,068		3,068
Equipment	3,143		2,770
Software	7,849		4,815
Furniture and fixtures	2,158		1,731
Land improvements	474		317
	54,865		49,448
Accumulated depreciation	(5,570)		(3,262)
Total property and equipment, net	$	49,295	$	46,186

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Investments (Tables)

12 Months Ended

Dec. 31, 2021

Investments [Abstract]

Available-for-sale Investments

The following tables summarize the Company’s available-for-sale investments at December 31, 2021 and 2020:

	December 31, 2021
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	6,936	$	—	$	(89)	$	6,847
Obligations of states, municipalities and political subdivisions	216,375		12,139		(469)		228,045
Corporate and other securities	450,594		11,714		(3,821)		458,487
Asset-backed securities	299,810		2,217		(252)		301,775
Residential mortgage-backed securities	340,804		1,804		(4,923)		337,685
Commercial mortgage-backed securities	57,000		2,433		(206)		59,227
Total fixed-maturity investments	$	1,371,519	$	30,307	$	(9,760)	$	1,392,066

	December 31, 2020
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
Fixed maturities:
Obligations of states, municipalities and political subdivisions	$	216,181	$	14,792	$	(67)	$	230,906
Corporate and other securities	294,854		21,840		(86)		316,608
Asset-backed securities	236,813		4,230		(382)		240,661
Residential mortgage-backed securities	217,859		4,938		(141)		222,656
Commercial mortgage-backed securities	66,110		4,886		(27)		70,969
Total fixed-maturity investments	$	1,031,817	$	50,686	$	(703)	$	1,081,800

Available-for-sale Securities in a Unrealized Loss Position

	December 31, 2021
	Less than 12 Months				12 Months or Longer				Total
	Estimated Fair Value		Gross Unrealized Losses		Estimated Fair Value		Gross Unrealized Losses		Estimated Fair Value		Gross Unrealized Losses
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	6,847	$	(89)	$	—	$	—	$	6,847	$	(89)
Obligations of states, municipalities and political subdivisions	23,870		(469)		—		—		23,870		(469)
Corporate and other securities	188,522		(3,718)		1,092		(103)		189,614		(3,821)
Asset-backed securities	136,669		(204)		4,452		(48)		141,121		(252)
Residential mortgage-backed securities	260,251		(4,329)		17,968		(594)		278,219		(4,923)
Commercial mortgage-backed securities	10,773		(206)		—		—		10,773		(206)
Total fixed-maturity investments	$	626,932	$	(9,015)	$	23,512	$	(745)	$	650,444	$	(9,760)

	December 31, 2020
	Less than 12 Months				12 Months or Longer				Total
	Estimated Fair Value		Gross Unrealized Holding Losses		Estimated Fair Value		Gross Unrealized Holding Losses		Estimated Fair Value		Gross Unrealized Holding Losses
	(in thousands)
Fixed maturities:
Obligations of states, municipalities and political subdivisions	$	6,412	$	(67)	$	—	$	—	$	6,412	$	(67)
Corporate and other securities	3,829		(86)		—		—		3,829		(86)
Asset-backed securities	57,750		(149)		23,825		(233)		81,575		(382)
Residential mortgage-backed securities	46,869		(129)		266		(12)		47,135		(141)
Commercial mortgage-backed securities	4,971		(27)		—		—		4,971		(27)
Total fixed-maturity investments	$	119,831	$	(458)	$	24,091	$	(245)	$	143,922	$	(703)

Contractual Maturities of Available-for-sale Fixed Maturity Securities

The amortized cost and estimated fair value of available-for-sale fixed-maturity securities at December 31, 2021 are summarized, by contractual maturity, as follows:

	Amortized		Estimated
	Cost		Fair Value
	(in thousands)
Due in one year or less	$	6,742	$	6,822
Due after one year through five years	185,273		189,497
Due after five years through ten years	226,707		232,197
Due after ten years	255,183		264,863
Asset-backed securities	299,810		301,775
Residential mortgage-backed securities	340,804		337,685
Commercial mortgage-backed securities	57,000		59,227
Total fixed maturities	$	1,371,519	$	1,392,066

Net Investment Income

The following table presents the components of net investment income:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Interest:
Taxable bonds	$	25,654	$	20,493	$	14,853
Municipal bonds (tax exempt)	3,501		3,618		3,692
Cash equivalents and short-term investments	12		262		842
Dividends on equity securities	3,962		3,512		2,136
Gross investment income	33,129		27,885		21,523
Investment expenses	(2,081)		(1,775)		(1,390)
Net investment income	$	31,048	$	26,110	$	20,133

Schedule of Realized Gain (Loss)

The following table presents realized investment gains and losses:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Fixed-maturity securities:
Realized gains	$	2,944	$	4,022	$	567
Realized losses	(3)		(383)		(79)
Net realized gains from fixed-maturity securities	2,941		3,639		488
Equity securities:
Realized gains	97		—		556
Realized losses	(210)		(119)		(688)
Net realized losses from equity securities	(113)		(119)		(132)
Short-term securities - realized gains	—		13		3
Net realized investment gains	$	2,828	$	3,533	$	359

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Fair value measurements (Tables)

12 Months Ended

Dec. 31, 2021

Fair Value Disclosures [Abstract]

Assets Measured at Fair Value on a Recurring Basis

The following tables present the balances of assets measured at fair value on a recurring basis as of December 31, 2021 and 2020, by level within the fair value hierarchy.

	December 31, 2021
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	6,847	$	—	$	—	$	6,847
Obligations of states, municipalities and political subdivisions	—		228,045		—		228,045
Corporate and other securities	—		458,487		—		458,487
Asset-backed securities	—		301,775		—		301,775
Residential mortgage-backed securities	—		337,685		—		337,685
Commercial mortgage-backed securities	—		59,227		—		59,227
Total fixed maturities	6,847		1,385,219		—		1,392,066
Equity securities:
Exchange traded funds	123,389		—		—		123,389
Non-redeemable preferred stock	—		49,222		—		49,222
Total equity securities	123,389		49,222		—		172,611
Total	$	130,236	$	1,434,441	$	—	$	1,564,677

	December 31, 2020
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets
Fixed maturities:
Obligations of states, municipalities and political subdivisions	$	—	$	230,906	$	—	$	230,906
Corporate and other securities	—		316,608		—		316,608
Asset-backed securities	—		240,661		—		240,661
Residential mortgage-backed securities	—		222,656		—		222,656
Commercial mortgage-backed securities	—		70,969		—		70,969
Total fixed maturities	—		1,081,800		—		1,081,800
Equity securities:
Exchange traded funds	98,050		—		—		98,050
Non-redeemable preferred stock	—		31,612		—		31,612
Total equity securities	98,050		31,612		—		129,662
Total	$	98,050	$	1,113,412	$	—	$	1,211,462

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Deferred policy acquisition costs (Tables)

12 Months Ended

Dec. 31, 2021

Deferred Policy Acquisition Costs Disclosures [Abstract]

Deferred Policy Acquisition Costs

The following table presents the amounts of policy acquisition costs deferred and amortized for the years ended:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Balance, beginning of year	$	31,912	$	23,564	$	14,801
Policy acquisition costs deferred:
Direct commissions	111,463		80,682		56,841
Ceding commissions	(28,965)		(18,879)		(12,373)
Other underwriting and policy acquisition costs	6,191		4,478		3,727
Policy acquisition costs deferred	88,689		66,281		48,195
Amortization of net policy acquisition costs	(78,633)		(57,933)		(39,432)
Balance, end of year	$	41,968	$	31,912	$	23,564

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Underwriting, acquisition and insurance expenses (Tables)

12 Months Ended

Dec. 31, 2021

Underwriting, Acquisition and Insurance Expenses [Abstract]

Underwriting, Acquisition and Insurance Expenses

Underwriting, acquisition and insurance expenses consist of the following:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Underwriting, acquisition and insurance expenses incurred:
Direct commissions	$	98,847	$	69,922	$	48,382
Ceding commissions	(25,702)		(16,145)		(12,347)
Other operating expenses	51,755		40,519		34,182
Total	$	124,900	$	94,296	$	70,217

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Income taxes (Tables)

12 Months Ended

Dec. 31, 2021

Income Tax Disclosure [Abstract]

Components of Income Tax Expense (Benefit)

Income tax expense includes the following components for the years ending December 31, 2021, 2020 and 2019:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Current federal income tax expense	$	36,718	$	11,378	$	12,860
Deferred federal income tax (benefit) expense	(576)		616		(125)
Income tax expense	$	36,142	$	11,994	$	12,735

Effective Income Tax Rate Reconciliation

The Company’s effective income tax rate on income before income taxes differs from the prevailing federal income tax rate and is summarized as follows:

	Year ended December 31,
	2021		2020		2019
	(in thousands)
Income tax expense at federal income tax rate	$	39,648	$	21,087	$	15,971
Stock options exercised	(2,148)		(7,634)		(2,411)
Restricted stock award vesting	(677)		(658)		(153)
Tax-exempt investment income	(546)		(565)		(577)
Other	(135)		(236)		(95)
Total	$	36,142	$	11,994	$	12,735

Deferred Tax Assets and Liabilities

The significant components of the net deferred tax asset (liability) are summarized as follows:

	December 31,
	2021		2020
	(in thousands)
Deferred tax assets:
Unpaid losses and loss adjustment expenses	$	15,723	$	11,736
Unearned premiums	13,190		9,942
State operating loss carryforwards	4,554		3,833
Stock compensation	1,140		865
Allowance for credit losses	712		649
Other	278		254
Deferred tax assets before allowance	35,597		27,279
Less: valuation allowance	(4,159)		(3,491)
Total deferred tax assets	31,438		23,788
Deferred tax liabilities:
Unrealized gains on fixed-maturity securities	4,315		10,497
Unrealized gains on equity securities	11,368		6,552
Deferred policy acquisition costs, net of ceding commissions	8,813		6,701
Property and equipment	2,741		2,433
Transition adjustment for loss reserve discount	1,025		1,281
Intangible assets	743		743
Other	324		229
Total deferred tax liabilities	29,329		28,436
Net deferred tax asset (liability)	$	2,109	$	(4,648)

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Reserves for unpaid losses and loss adjustment expenses (Tables)

12 Months Ended

Dec. 31, 2021

Liability for Claims and Claims Adjustment Expense [Abstract]

Unpaid Losses and Loss Adjustment Expenses

The following table presents a reconciliation of consolidated beginning and ending reserves for unpaid losses and loss adjustment expenses:

	December 31,
	2021		2020		2019
	(in thousands)
Gross reserves for unpaid losses and loss adjustment expenses, beginning of year	$	636,013	$	460,058	$	369,152
Less: reinsurance recoverable on unpaid losses	83,730		69,792		55,389
Adoption of new accounting standard for credit losses	—		(282)		—
Net reserves for unpaid losses and loss adjustment expenses, beginning of year	552,283		390,548		313,763
Incurred losses and loss adjustment expenses:
Current year	356,401		277,140		178,986
Prior year	(31,986)		(13,338)		(9,423)
Total net losses and loss adjustment expenses incurred	324,415		263,802		169,563
Payments:
Current year	23,765		27,664		19,054
Prior year	89,150		74,403		74,006
Total payments	112,915		102,067		93,060
Net reserves for unpaid losses and loss adjustment expenses, end of year	763,783		552,283		390,266
Reinsurance recoverable on unpaid losses, net of allowance	117,561		83,730		69,792
Gross reserves for unpaid losses and loss adjustment expenses, end of year	$	881,344	$	636,013	$	460,058

Claims Development

Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability

The reconciliation of the net incurred and paid claims development tables to the liability for unpaid claims and claim adjustment expenses in the consolidated statement of financial position is as follows:

(in thousands)	December 31, 2021
Net outstanding liabilities
Property	$	31,502
Casualty - claims made	150,699
Casualty - occurrence	514,178
Liabilities for unpaid claims and claim adjustment expenses, net of reinsurance	696,379
Reinsurance recoverable on unpaid claims
Property	16,777
Casualty - claims made	16,581
Casualty - occurrence	84,203
Total reinsurance recoverable on unpaid claims	117,561
Unallocated claims adjustment expenses	67,404
Gross liability for unpaid claims and claim adjustment expense	$	881,344

Property [Member]

Claims Development

Short-duration Insurance Contracts, Claims Development

Property

	Incurred Claims and Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,										As of December 31, 2021
Accident Year	2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021		Total of IBNR Liabilities Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
	($ in thousands)
2017	$	12,473	$	11,705	$	11,676	$	11,631	$	11,606	$	—	1,041
2018			11,559		12,004		12,698		12,704		26		650
2019					14,914		13,909		15,572		154		642
2020							40,612		37,939		1,234		2,294
2021									36,531		9,323		1,034
							Total		$	114,352

	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,
Accident Year	2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021
	($ in thousands)
2017	$	9,938	$	11,233	$	11,602	$	11,608	$	11,605
2018			9,132		11,646		12,599		12,660
2019					9,852		12,581		13,996
2020							19,897		30,321
2021									14,268
							Total		82,850
			All outstanding liabilities before 2017, net of reinsurance						—
			Liabilities for claims and claim adjustment expenses, net of reinsurance						$	31,502

Short-duration Insurance Contracts, Schedule of Historical Claims Duration

The following is supplementary information about average historical claims duration as of December 31, 2021:

Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	(Unaudited)
Years	1		2		3		4		5
Property	62.5	%	19.0	%	6.6	%	0.3	%	—	%

Casualty - claims made [Member]

Claims Development

Short-duration Insurance Contracts, Claims Development

Casualty - Claims Made

	Incurred Claims and Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,																				As of December 31, 2021
Accident Year	2012 Unaudited		2013 Unaudited		2014 Unaudited		2015 Unaudited		2016 Unaudited		2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021		Total of IBNR Liabilities Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
2012	$	7,913	$	5,749	$	4,205	$	3,102	$	2,845	$	2,477	$	2,314	$	2,207	$	2,136	$	1,867	$	136	138
2013			15,238		11,639		9,113		7,917		7,002		6,463		6,128		6,087		6,215		356		228
2014					18,847		14,289		11,748		11,217		10,948		10,988		10,620		10,266		638		273
2015							18,883		16,777		14,896		13,583		13,942		13,548		13,414		937		258
2016									19,170		14,693		14,675		14,322		13,583		13,602		1,431		310
2017											18,116		17,097		16,120		15,794		14,989		2,434		371
2018													22,429		20,234		18,612		17,057		5,108		464
2019															34,693		29,056		26,426		11,037		550
2020																	55,630		44,641		31,667		772
2021																			84,018		74,017		1,035
																	Total		$	232,495

	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,
Accident Year	2012 Unaudited		2013 Unaudited		2014 Unaudited		2015 Unaudited		2016 Unaudited		2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021
2012	$	153	$	475	$	877	$	1,024	$	1,090	$	1,882	$	1,946	$	1,946	$	1,946	$	1,732
2013			499		1,915		4,436		5,070		5,320		5,439		5,482		5,612		5,843
2014					435		1,865		5,039		6,385		8,290		9,415		9,491		9,628
2015							217		4,496		7,563		9,238		11,372		11,522		12,142
2016									1,158		3,015		6,907		9,839		11,381		12,105
2017											340		4,897		8,252		10,484		11,357
2018													507		5,030		8,931		10,330
2019															2,487		6,005		10,123
2020																	1,002		7,446
2021																			1,146
																	Total		81,852
	All outstanding liabilities before 2012, net of reinsurance																		56
	Liabilities for claims and claim adjustment expenses, net of reinsurance																		$	150,699

Casualty - occurrence [Member]

Claims Development

Short-duration Insurance Contracts, Claims Development

Casualty - Occurrence

	Incurred Claims and Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,																				As of December 31, 2021
Accident Year	2012 Unaudited		2013 Unaudited		2014 Unaudited		2015 Unaudited		2016 Unaudited		2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021		Total of IBNR Liabilities Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
2012	$	16,977	$	17,436	$	18,803	$	20,401	$	20,579	$	22,001	$	22,401	$	23,223	$	23,197	$	22,271	$	997	597
2013			30,616		28,771		28,037		29,039		31,731		33,248		33,973		33,128		33,002		2,273		872
2014					47,805		40,668		38,049		36,678		39,313		41,859		42,434		41,367		4,374		1,230
2015							59,717		51,739		49,122		52,100		54,697		54,090		54,090		7,108		1,700
2016									61,440		55,680		53,549		55,534		57,401		60,861		10,378		1,518
2017											71,126		67,151		68,985		70,641		71,117		18,282		1,843
2018													86,157		78,331		78,386		83,952		33,875		1,918
2019															112,266		109,994		108,138		63,673		2,006
2020																	154,619		136,212		119,143		1,761
2021																			200,598		190,069		1,332
																	Total		$	811,608

	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
	For the Years Ended December 31,
Accident Year	2012 Unaudited		2013 Unaudited		2014 Unaudited		2015 Unaudited		2016 Unaudited		2017 Unaudited		2018 Unaudited		2019 Unaudited		2020 Unaudited		2021
2012	$	757	$	4,441	$	7,850	$	11,238	$	14,382	$	16,474	$	19,383	$	20,707	$	21,408	$	20,805
2013			1,099		4,469		7,957		14,890		21,348		26,715		28,248		29,610		30,116
2014					698		3,081		8,489		17,576		23,771		31,026		34,338		35,807
2015							941		3,161		12,685		28,385		37,690		41,724		44,161
2016									1,099		6,015		17,225		28,924		34,437		43,311
2017											1,581		9,352		22,407		37,736		46,025
2018													2,638		10,995		22,860		35,138
2019															3,944		16,687		30,518
2020																	2,400		8,673
2021																			3,205
																	Total		297,759
					All outstanding liabilities before 2012, net of reinsurance														329
			Liabilities for claims and claim adjustment expenses, net of reinsurance																$	514,178

Casualty [Member]

Claims Development

Short-duration Insurance Contracts, Schedule of Historical Claims Duration

The following is supplementary information about average historical claims duration as of December 31, 2021:

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	(Unaudited)
Years	1		2		3		4		5		6		7		8		9		10
Casualty - claims made	4.9	%	20.5	%	25.7	%	12.6	%	9.9	%	12.3	%	2.4	%	1.1	%	1.9	%	—	%
Casualty - occurrence	2.4	%	9.1	%	15.0	%	20.4	%	14.4	%	13.0	%	7.6	%	4.5	%	2.3	%	—	%

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Reinsurance (Tables)

12 Months Ended

Dec. 31, 2021

Reinsurance Disclosures [Abstract]

Effects of Reinsurance on Premiums Written and Earned

The following table summarizes the effect of reinsurance on premiums written and earned:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Written:
Direct	$	764,373	$	552,814	$	389,569
Assumed	—		—		125
Ceded	(104,164)		(74,595)		(47,633)
Net written	$	660,209	$	478,219	$	342,061
Earned:
Direct	$	677,630	$	479,181	$	330,464
Assumed	—		21		104
Ceded	(94,751)		(66,448)		(47,587)
Net earned	$	582,879	$	412,754	$	282,981

Reinsurance Recoverables

The following table presents reinsurance recoverables on paid and unpaid losses as of December 31, 2021 and 2020:

	December 31, 2021		December 31, 2020
	(in thousands)
Reinsurance recoverables on paid losses	$	5,409	$	9,485
Reinsurance recoverables on unpaid losses	117,561		83,730
Reinsurance recoverables	$	122,970	$	93,215

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Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2021

Stockholders' Equity Attributable to Parent [Abstract]

Assumptions Used in Estimating Fair Value of Options Granted

The value of the options granted was estimated at the date of grant using the Black-Scholes pricing model using the following assumptions:

Risk-free rate of return	1.26	%
Dividend yield	1.25	%
Expected share price volatility(1)	18.50	%
Expected life in years(2)	6.3 years

Share-based Compensation, Stock Options, Activity

A summary of option activity as of December 31, 2021 and changes during the year then ended is presented below:

	Number of Shares	Weighted-average exercise price		Weighted-average remaining years of contractual life	Aggregate intrinsic value (in thousands)
Outstanding at December 31, 2020	387,738	$	16.00
Granted	—	—
Forfeited	(934)	16.00
Exercised	(61,371)	16.00
Outstanding at December 31, 2021	325,433	$	16.00	4.6	$	72,210
Exercisable at December 31, 2021	325,433	$	16.00	4.6	$	72,210

Nonvested Restricted Stock Shares Activity

A summary of restricted stock activity under the equity compensation plans for the year ended is as follows:

	December 31, 2021
	Number of Shares	Weighted Average Grant Date Fair Value per Share
Nonvested outstanding at the beginning of the period	108,392	$	97.40
Granted	35,870	$	185.00
Vested	(41,121)	$	87.82
Forfeited	(7,157)	$	128.11
Nonvested outstanding at the end of the period	95,984	$	131.94

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Earnings per share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Earnings Per Share

The following table represents a reconciliation of the numerator and denominator of the basic and diluted earnings per share computations contained in the consolidated financial statements:

	Year ended December 31,
	2021		2020		2019
	(in thousands, except per share data)
Net income	$	152,659	$	88,419	$	63,316
Weighted average common shares outstanding - basic	22,693		22,319		21,528
Dilutive effect of shares issued under stock compensation arrangements:
Stock options	324		469		570
Restricted stock awards	45		64		38
Total dilutive effect of shares issued under stock compensation arrangements	369		533		608
Weighted average common shares outstanding - diluted	23,062		22,852		22,136
Earnings per common share:
Basic	$	6.73	$	3.96	$	2.94
Diluted	$	6.62	$	3.87	$	2.86

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Other comprehensive income (loss) (Tables)

12 Months Ended

Dec. 31, 2021

Other Comprehensive Income (Loss), Net of Tax [Abstract]

Other Comprehensive Income (Loss)

The following table summarizes the components of other comprehensive (loss) income:

	Year Ending December 31,
	2021		2020		2019
	(in thousands)
Unrealized (losses) gains on fixed-maturity securities arising during the period, before income taxes:	$	(26,792)	$	37,387	$	19,190
Income tax benefit (expense)	5,626		(7,851)		(4,029)
Unrealized (losses) gains arising during the period, net of income taxes	(21,166)		29,536		15,161
Less reclassification adjustment:
Net realized investment gains on available-for-sale investments	2,644		2,119		489
Income tax benefit	(555)		(445)		(102)
Reclassification adjustment included in net income	2,089		1,674		387
Other comprehensive (loss) income	$	(23,255)	$	27,862	$	14,774

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Underwriting information (Tables)

12 Months Ended

Dec. 31, 2021

Segment Reporting [Abstract]

Gross Written Premiums by Underwriting Division

Gross written premiums by underwriting division are presented below:

	Year Ended December 31,
	2021		2020		2019
	(in thousands)
Commercial:
Small Business	$	112,142	$	83,289	$	63,181
Excess Casualty	109,464		76,715		51,225
Construction	103,540		87,206		71,035
Commercial Property	78,722		51,789		29,115
Allied Health	59,208		37,562		23,962
Products Liability	55,070		38,306		26,333
Life Sciences	41,297		31,027		17,821
General Casualty	36,042		24,591		20,931
Professional Liability	33,226		27,051		20,029
Management Liability	32,163		24,061		14,820
Energy	19,925		16,985		15,371
Environmental	13,584		8,568		5,179
Entertainment	12,396		4,614		2,348
Health Care	11,271		7,666		5,963
Inland Marine	9,703		6,910		3,467
Public Entity	9,207		3,007		580
Commercial Insurance	411		1,757		1,674
Total commercial	737,371		531,104		373,034
Personal:
Personal Insurance	27,002		21,710		16,660
Total	$	764,373	$	552,814	$	389,694

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Statutory financial information (Tables)

12 Months Ended

Dec. 31, 2021

Statutory Accounting Practices, Statutory Amount Available for Dividend Payments [Abstract]

Statutory Net Income and Statutory Capital and Surplus

Statutory net income and statutory capital and surplus for Kinsale Insurance as of December 31, 2021, 2020, and 2019 and for the years then ended are summarized as follows:

	Year ended December 31,
	2021		2020		2019
	(in thousands)
Statutory net income	$	115,885	$	54,338	$	40,917
Statutory capital and surplus	$	606,910	$	476,066	$	348,811

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Schedule II - Condensed Financial Information of Registrant (Tables)

12 Months Ended

Dec. 31, 2021

Condensed Financial Information Disclosure [Abstract]

Condensed Balance Sheet

	December 31,
	2021		2020
	(in thousands)
Assets
Cash and cash equivalents	$	14,596	$	8,395
Due from subsidiaries	—		7,792
Investment in subsidiaries	721,369		600,931
Deferred income tax asset, net	934		587
Income taxes recoverable	5,059		1,177
Other assets	314		290
Total assets	$	742,272	$	619,172
Liabilities and Stockholders' Equity
Liabilities:
Accounts payable and accrued expenses	$	121	$	302
Due to subsidiaries	47		—
Credit facility	42,696		42,570
Other liabilities	73		62
Total liabilities	42,937		42,934
Stockholders’ equity:
Common stock	228		228
Additional paid-in capital	295,040		291,315
Retained earnings	385,942		243,315
Accumulated other comprehensive income	18,125		41,380
Stockholders’ equity	699,335		576,238
Total liabilities and stockholders’ equity	$	742,272	$	619,172

Condensed Income Statement

	Years Ended December 31,
	2021		2020		2019
	(in thousands)
Revenues:
Management fees from subsidiaries	$	7,002	$	5,709	$	4,502
Total revenues	7,002		5,709		4,502
Expenses:
Operating expenses	7,972		6,624		5,215
Other expenses	994		1,332		—
Total expenses	8,966		7,956		5,215
Loss before income taxes	(1,964)		(2,247)		(713)
Income tax benefit	(3,424)		(8,779)		(2,714)
Income before equity in net income of subsidiaries	1,460		6,532		2,001
Equity in net income of subsidiaries	151,199		81,887		61,315
Net income	152,659		88,419		63,316
Other comprehensive (loss) income:
Equity in other comprehensive (losses) earnings of subsidiaries	(23,255)		27,862		14,774
Total comprehensive income	$	129,404	$	116,281	$	78,090

Condensed Cash Flow Statement

	Years Ended December 31,
	2021		2020		2019
	(in thousands)
Operating activities
Net income	$	152,659	$	88,419	$	63,316
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Deferred tax benefit	(347)		(68)		(150)
Stock compensation expense	4,844		3,575		2,742
Equity in undistributed earnings of subsidiaries	(151,199)		(81,887)		(61,315)
Changes in operating assets and liabilities	3,955		7,520		(14,247)
Dividends received from subsidiary	8,000		—		5,000
Net cash provided by (used in) operating activities	17,912		17,559		(4,654)
Investing activities
Contributions to subsidiary	(571)		(100,034)		(68,391)
Net cash used in investing activities	(571)		(100,034)		(68,391)
Financing activities
Common stock issued, net of transaction costs	—		56,698		65,879
Common stock issued, stock options exercised	982		3,622		2,750
Payroll taxes withheld and remitted on share-based payments	(2,101)		(1,803)		(617)
Dividends paid	(10,021)		(8,073)		(6,929)
Proceeds from credit facility	—		25,700		17,300
Debt issuance costs	—		—		(628)
Net cash (used in) provided by financing activities	(11,140)		76,144		77,755
Net change in cash and cash equivalents	6,201		(6,331)		4,710
Cash and cash equivalents at beginning of year	8,395		14,726		10,016
Cash and cash equivalents at end of year	$	14,596	$	8,395	$	14,726

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Description of business - (Details)	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of states in which company is authorized to write business	50

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Summary of significant accounting policies (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Allowance for credit losses	$ 3,400	$ 3,100
Short-term Investments	$ 0	$ 0

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Intangible assets and other information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Excess and surplus lines insurance authorization [Member]
Indefinite-lived Intangible Assets [Line Items]
Impairment of intangible assets	$ 0	$ 0	$ 0

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Summary of significant accounting policies Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 54,865	$ 49,448
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(5,570)	(3,262)
Property, Plant and Equipment, Net	49,295	46,186
Transaction price of sale of land and parking deck	6,500
Proceeds received from sale of land and parking deck	5,000
Proceeds receivable from sale of land and parking deck	1,500
Building [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 33,101	31,675
Building [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	39 years
Parking [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 5,072	5,072
Land [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	3,068	3,068
Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	3,143	2,770
Software Development [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	7,849	4,815
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 2,158	1,731
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	7 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	10 years
Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 474	$ 317
Land Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	15 years
Land Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	20 years
Technology Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Technology Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	7 years

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Investments, Available-for-sale Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 1,371,519	$ 1,031,817
Gross Unrealized Gains	30,307	50,686
Gross Unrealized Losses	9,760	703
Estimated Fair Value	1,392,066	1,081,800
U.S. Treasury Securities and Obligations of U.S. Government Agencies [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	6,936
Gross Unrealized Gains	0
Gross Unrealized Losses	89
Estimated Fair Value	6,847
Obligations of states, municipalities and political subdivisions [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	216,375	216,181
Gross Unrealized Gains	12,139	14,792
Gross Unrealized Losses	469	67
Estimated Fair Value	228,045	230,906
Corporate and other securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	450,594	294,854
Gross Unrealized Gains	11,714	21,840
Gross Unrealized Losses	3,821	86
Estimated Fair Value	458,487	316,608
Asset-backed securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	299,810	236,813
Gross Unrealized Gains	2,217	4,230
Gross Unrealized Losses	252	382
Estimated Fair Value	301,775	240,661
Residential mortgage-backed securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	340,804	217,859
Gross Unrealized Gains	1,804	4,938
Gross Unrealized Losses	4,923	141
Estimated Fair Value	337,685	222,656
Commercial mortgage-backed aecurities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	57,000	66,110
Gross Unrealized Gains	2,433	4,886
Gross Unrealized Losses	206	27
Estimated Fair Value	$ 59,227	$ 70,969

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Investments, Available-for-sale Securities in a Loss Position (Details) $ in Thousands	Dec. 31, 2021 USD ($) Rate	Dec. 31, 2020 USD ($)
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Estimated Fair Value	$ 626,932	$ 119,831
Less than 12 months, Gross Unrealized Losses	9,015	458
12 Months or Longer, Estimated Fair Value	23,512	24,091
12 Months or Longer, Gross Unrealized Losses	745	245
Total Estimated Fair Value	650,444	143,922
Total gross unrealized losses	$ 9,760	703
Number of available-for-sale securities in unrealized loss positions	234
Number of available-for-sale securities in unrealized loss positions, greater than one year	10
Fixed Maturities [Member]
Debt Securities, Available-for-sale [Line Items]
Percentage of securities rated A- or better | Rate	81.50%
Credit losses	$ 0
U.S. Treasury Securities and Obligations of U.S. Government Agencies [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Estimated Fair Value	6,847
Less than 12 months, Gross Unrealized Losses	89
12 Months or Longer, Estimated Fair Value	0
12 Months or Longer, Gross Unrealized Losses	0
Total Estimated Fair Value	6,847
Total gross unrealized losses	89
Obligations of states, municipalities and political subdivisions [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Estimated Fair Value	23,870	6,412
Less than 12 months, Gross Unrealized Losses	469	67
12 Months or Longer, Estimated Fair Value	0	0
12 Months or Longer, Gross Unrealized Losses	0	0
Total Estimated Fair Value	23,870	6,412
Total gross unrealized losses	469	67
Corporate and other securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Estimated Fair Value	188,522	3,829
Less than 12 months, Gross Unrealized Losses	3,718	86
12 Months or Longer, Estimated Fair Value	1,092	0
12 Months or Longer, Gross Unrealized Losses	103	0
Total Estimated Fair Value	189,614	3,829
Total gross unrealized losses	3,821	86
Asset-backed securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Estimated Fair Value	136,669	57,750
Less than 12 months, Gross Unrealized Losses	204	149
12 Months or Longer, Estimated Fair Value	4,452	23,825
12 Months or Longer, Gross Unrealized Losses	48	233
Total Estimated Fair Value	141,121	81,575
Total gross unrealized losses	252	382
Residential mortgage-backed securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Estimated Fair Value	260,251	46,869
Less than 12 months, Gross Unrealized Losses	4,329	129
12 Months or Longer, Estimated Fair Value	17,968	266
12 Months or Longer, Gross Unrealized Losses	594	12
Total Estimated Fair Value	278,219	47,135
Total gross unrealized losses	4,923	141
Commercial mortgage-backed aecurities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Estimated Fair Value	10,773	4,971
Less than 12 months, Gross Unrealized Losses	206	27
12 Months or Longer, Estimated Fair Value	0	0
12 Months or Longer, Gross Unrealized Losses	0	0
Total Estimated Fair Value	10,773	4,971
Total gross unrealized losses	$ 206	$ 27

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Investments, Contractual Maturities of Available-for-sale Fixed Maturity Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Amortized Cost [Abstract]
Due in one year or less, Amortized Cost	$ 6,742
Due after one year through five years, Amortized Cost	185,273
Due after five years through ten years, Amortized Cost	226,707
Due after ten years, Amortized Cost	255,183
Total fixed maturities, Amortized Cost	1,371,519	$ 1,031,817
Estimated Fair Value [Abstract]
Due in one year or less, Estimated Fair Value	6,822
Due after one year through five years, Estimated Fair Value	189,497
Due after five years through ten years, Estimated Fair Value	232,197
Due after ten years, Estimated Fair Value	264,863
Estimated Fair Value	1,392,066	1,081,800
Asset-backed securities [Member]
Amortized Cost [Abstract]
Without single maturity date, Amortized Cost	299,810
Total fixed maturities, Amortized Cost	299,810	236,813
Estimated Fair Value [Abstract]
Without single maturity date, Estimated Fair Value	301,775
Estimated Fair Value	301,775	240,661
Residential mortgage-backed securities [Member]
Amortized Cost [Abstract]
Without single maturity date, Amortized Cost	340,804
Total fixed maturities, Amortized Cost	340,804	217,859
Estimated Fair Value [Abstract]
Without single maturity date, Estimated Fair Value	337,685
Estimated Fair Value	337,685	222,656
Commercial mortgage-backed aecurities [Member]
Amortized Cost [Abstract]
Without single maturity date, Amortized Cost	57,000
Total fixed maturities, Amortized Cost	57,000	66,110
Estimated Fair Value [Abstract]
Without single maturity date, Estimated Fair Value	59,227
Estimated Fair Value	$ 59,227	$ 70,969

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Investments, Net Investment Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest [Abstract]
Taxable bonds	$ 25,654	$ 20,493	$ 14,853
Municipal bonds (tax exempt)	3,501	3,618	3,692
Cash equivalents and short-term investments	12	262	842
Dividends on equity securities	3,962	3,512	2,136
Gross investment income	33,129	27,885	21,523
Investment expenses	(2,081)	(1,775)	(1,390)
Net investment income	$ 31,048	$ 26,110	$ 20,133

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Investments Realized Investment Gains and Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Fixed-maturity securities - realized gains (losses) [Abstract]
Realized gains	$ 2,944	$ 4,022	$ 567
Realized losses	(3)	(383)	(79)
Net realized gains from fixed-maturity securities	2,941	3,639	488
Equity securities - realized gains (losses) [Abstract]
Realized gains	97	0	556
Realized losses	(210)	(119)	(688)
Net realized gains (losses) from equity securities	(113)	(119)	(132)
Short-term securities - realized gain	0	13	3
Net realized investment gains	$ 2,828	$ 3,533	$ 359

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Investments, Unrealized Gain (Losses) on Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Change in unrealized gains (losses), fixed-maturity securities	$ (29.4)	$ 35.3	$ 18.7

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Investments Investment Deposits and Payables (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Payable for investments purchased	$ 15.0
Invested assets on deposit with state regulatory authorities	$ 6.7	$ 6.9

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Fair value measurements (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	$ 1,392,066	$ 1,081,800
U.S. Treasury Securities and Obligations of U.S. Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	6,847
Obligations of states, municipalities and political subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	228,045	230,906
Corporate and other securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	458,487	316,608
Asset-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	301,775	240,661
Residential mortgage-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	337,685	222,656
Commercial mortgage-backed aecurities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	59,227	70,969
Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	1,564,677	1,211,462
Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	130,236	98,050
Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	1,434,441	1,113,412
Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Recurring [Member] | Fixed Maturities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	1,392,066	1,081,800
Recurring [Member] | Fixed Maturities [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	6,847	0
Recurring [Member] | Fixed Maturities [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	1,385,219	1,081,800
Recurring [Member] | Fixed Maturities [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Recurring [Member] | U.S. Treasury Securities and Obligations of U.S. Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	6,847
Recurring [Member] | U.S. Treasury Securities and Obligations of U.S. Government Agencies [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	6,847
Recurring [Member] | U.S. Treasury Securities and Obligations of U.S. Government Agencies [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0
Recurring [Member] | U.S. Treasury Securities and Obligations of U.S. Government Agencies [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0
Recurring [Member] | Obligations of states, municipalities and political subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	228,045	230,906
Recurring [Member] | Obligations of states, municipalities and political subdivisions [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Recurring [Member] | Obligations of states, municipalities and political subdivisions [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	228,045	230,906
Recurring [Member] | Obligations of states, municipalities and political subdivisions [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Recurring [Member] | Corporate and other securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	458,487	316,608
Recurring [Member] | Corporate and other securities [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Recurring [Member] | Corporate and other securities [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	458,487	316,608
Recurring [Member] | Corporate and other securities [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Recurring [Member] | Asset-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	301,775	240,661
Recurring [Member] | Asset-backed securities [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Recurring [Member] | Asset-backed securities [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	301,775	240,661
Recurring [Member] | Asset-backed securities [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Recurring [Member] | Residential mortgage-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	337,685	222,656
Recurring [Member] | Residential mortgage-backed securities [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Recurring [Member] | Residential mortgage-backed securities [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	337,685	222,656
Recurring [Member] | Residential mortgage-backed securities [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Recurring [Member] | Commercial mortgage-backed aecurities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	59,227	70,969
Recurring [Member] | Commercial mortgage-backed aecurities [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Recurring [Member] | Commercial mortgage-backed aecurities [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	59,227	70,969
Recurring [Member] | Commercial mortgage-backed aecurities [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Recurring [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	172,611	129,662
Recurring [Member] | Equity Securities [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	123,389	98,050
Recurring [Member] | Equity Securities [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	49,222	31,612
Recurring [Member] | Equity Securities [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Recurring [Member] | Exchange Traded Fund [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	123,389	98,050
Recurring [Member] | Exchange Traded Fund [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	123,389	98,050
Recurring [Member] | Exchange Traded Fund [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Recurring [Member] | Exchange Traded Fund [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Recurring [Member] | Nonredeemable Preferred Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	49,222	31,612
Recurring [Member] | Nonredeemable Preferred Stock [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Recurring [Member] | Nonredeemable Preferred Stock [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	49,222	31,612
Recurring [Member] | Nonredeemable Preferred Stock [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 0	$ 0

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Fair value measurements 2 (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents, Fair Value Disclosure	$ 44,700,000	$ 13,700,000
Fair Value, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value on a nonrecurring basis	0	0
Liabilities measured at fair value on a nonrecurring basis	$ 0	$ 0

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Deferred policy acquisition costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Movement analysis of deferred policy acquisition costs [Roll Forward]
Balance, beginning of period	$ 31,912	$ 23,564	$ 14,801
Policy acquisition costs deferred:
Direct commissions deferred	111,463	80,682	56,841
Ceding commissions deferred	(28,965)	(18,879)	(12,373)
Other underwriting and policy acquisition costs deferred	6,191	4,478	3,727
Policy acquisition costs deferred	88,689	66,281	48,195
Amortization of net policy acquisition costs	(78,633)	(57,933)	(39,432)
Balance, end of period	$ 41,968	$ 31,912	$ 23,564

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Underwriting, acquisition and insurance expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Underwriting, Acquisition and Insurance Expenses [Abstract]
Direct commissions	$ 98,847	$ 69,922	$ 48,382
Ceding commissions	(25,702)	(16,145)	(12,347)
Other expenses	51,755	40,519	34,182
Total	124,900	94,296	70,217
Salaries, employee benefits and bonus expense	$ 48,900	$ 35,900	$ 27,800

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Income taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Components of income tax expense
Current federal income tax expense	$ 36,718	$ 11,378	$ 12,860
Deferred federal income tax benefit	(576)	616	(125)
Income tax expense	36,142	11,994	12,735
Federal income taxes paid	40,600	13,000	$ 11,600
Income taxes receivable	$ 5,100	$ 1,200
Statutory income tax rate, percent	21.00%	21.00%	21.00%
Effective income tax rate reconciliation, amount [Abstract]
Income tax expense at federal income tax	$ 39,648	$ 21,087	$ 15,971
Stock options exercised	(2,148)	(7,634)	2,411
Restricted stock award vesting	(677)	(658)	(153)
Tax-exempt investment income	(546)	(565)	(577)
Other	(135)	(236)	(95)
Income tax expense	36,142	11,994	$ 12,735
Unrecognized tax positions	$ 0	$ 0

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Income taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets [Abstract]
Unpaid losses and loss adjustment expenses	$ 15,723	$ 11,736
Unearned premiums	13,190	9,942
State operating loss carryforwards	4,554	3,833
Stock compensation	1,140	865
Allowance for credit losses	712	649
Other	278	254
Deferred tax assets before allowance	35,597	27,279
Less: valuation allowance	(4,159)	(3,491)
Total deferred tax assets	31,438	23,788
Deferred tax liabilities [Abstract]
Unrealized gains on fixed-maturity securities	4,315	10,497
Unrealized gains on equity securities	11,368	6,552
Deferred policy acquisition costs, net of ceding commissions	8,813	6,701
Property and equipment	2,741	2,433
Transition adjustment for loss discounting	1,025	1,281
Intangible assets	743	743
Other	324	229
Total deferred tax liabilities	29,329	28,436
Deferred income tax asset, net	2,109
Net deferred tax liabilities		(4,648)
State Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 96,100	$ 80,900

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Reserves for unpaid losses and loss adjustment expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of consolidated beginning and ending reserves for unpaid losses and loss adjustment expenses [Roll Forward]
Gross reserves for unpaid losses and loss adjustment expenses, beginning of year	$ 881,344	$ 636,013	$ 460,058	$ 369,152
Adoption of new accounting standard for credit losses, allowance for reinsurance recoverables	300	300
Net reserves for unpaid losses and loss adjustment expenses, beginning of period	552,283	390,266	313,763
Incurred losses and loss adjustment expenses [Abstract]
Current year	356,401	277,140	178,986
Prior year losses and loss adjustment expense	(31,986)	(13,338)	(9,423)
Total net losses and loss adjustment expenses incurred	324,415	263,802	169,563
Payments [Abstract]
Current year	23,765	27,664	19,054
Prior years	89,150	74,403	74,006
Total payments	112,915	102,067	93,060
Net reserves for unpaid losses and loss adjustment expenses, end of period	763,783	552,283	390,266
Reinsurance recoverable for unpaid Claims losses, net, ending balance	117,561	83,730	69,792
Gross reserves for unpaid losses and loss adjustment expenses, end of year	$ 881,344	636,013	460,058
Cumulative Effect, Period of Adoption, Adjustment
Reconciliation of consolidated beginning and ending reserves for unpaid losses and loss adjustment expenses [Roll Forward]
Adoption of new accounting standard for credit losses, allowance for reinsurance recoverables		282
Cumulative Effect, Period of Adoption, Adjusted Balance
Reconciliation of consolidated beginning and ending reserves for unpaid losses and loss adjustment expenses [Roll Forward]
Net reserves for unpaid losses and loss adjustment expenses, beginning of period		$ 390,548
Payments [Abstract]
Net reserves for unpaid losses and loss adjustment expenses, end of period			$ 390,548

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Reserves for unpaid losses and loss adjustment expenses Liability for Unpaid Losses and Loss Adjustment Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Prior year losses and loss adjustment expense	$ (31,986)	$ (13,338)	$ (9,423)
Current year	356,401	277,140	178,986
Catastrophe [Member]
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Current year	8,600	23,200
Accident Year 2020 [Member]
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Prior year losses and loss adjustment expense	(33,700)
Accident Year 2019 [Member]
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Prior year losses and loss adjustment expense	$ (3,800)	(10,500)
Accident Year 2018 [Member]
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Prior year losses and loss adjustment expense		$ (1,800)	(13,000)
Accident Year 2017 [Member]
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Prior year losses and loss adjustment expense			(1,600)
Accident Years 2011 to 2015 [Member]
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Prior year losses and loss adjustment expense			$ 5,200

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Reserves for unpaid losses and loss adjustment expenses Reserve Development (Details)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)
Claims Development
Liability for claims and claim adjustment expense, net	$ 696,379,000
Property [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	82,850,000
All outstanding liabilities not separately presented, net of reinsurance	0
Liability for claims and claim adjustment expense, net	31,502,000
Incurred claims and claim adjustment expense, net	114,352,000
Casualty - claims made [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	81,852,000
All outstanding liabilities not separately presented, net of reinsurance	56,000
Liability for claims and claim adjustment expense, net	150,699,000
Incurred claims and claim adjustment expense, net	232,495,000
Casualty - occurrence [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	297,759,000
All outstanding liabilities not separately presented, net of reinsurance	329,000
Liability for claims and claim adjustment expense, net	514,178,000
Incurred claims and claim adjustment expense, net	811,608,000
Accident Year 2012 [Member] | Casualty - claims made [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	1,732,000	$ 1,946,000	$ 1,946,000	$ 1,946,000	$ 1,882,000	$ 1,090,000	$ 1,024,000	$ 877,000	$ 475,000	$ 153,000
Incurred claims and claim adjustment expense, net	1,867,000	2,136,000	2,207,000	2,314,000	2,477,000	2,845,000	3,102,000	4,205,000	5,749,000	7,913,000
Total of IBNR liabilities plus expected development on reported claims	$ 136,000
Cumulative number of reported claims	138
Accident Year 2012 [Member] | Casualty - occurrence [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 20,805,000	21,408,000	20,707,000	19,383,000	16,474,000	14,382,000	11,238,000	7,850,000	4,441,000	757,000
Incurred claims and claim adjustment expense, net	22,271,000	23,197,000	23,223,000	22,401,000	22,001,000	20,579,000	20,401,000	18,803,000	17,436,000	$ 16,977,000
Total of IBNR liabilities plus expected development on reported claims	$ 997,000
Cumulative number of reported claims	597
Accident Year 2013 [Member] | Casualty - claims made [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 5,843,000	5,612,000	5,482,000	5,439,000	5,320,000	5,070,000	4,436,000	1,915,000	499,000
Incurred claims and claim adjustment expense, net	6,215,000	6,087,000	6,128,000	6,463,000	7,002,000	7,917,000	9,113,000	11,639,000	15,238,000
Total of IBNR liabilities plus expected development on reported claims	$ 356,000
Cumulative number of reported claims	228
Accident Year 2013 [Member] | Casualty - occurrence [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 30,116,000	29,610,000	28,248,000	26,715,000	21,348,000	14,890,000	7,957,000	4,469,000	1,099,000
Incurred claims and claim adjustment expense, net	33,002,000	33,128,000	33,973,000	33,248,000	31,731,000	29,039,000	28,037,000	28,771,000	$ 30,616,000
Total of IBNR liabilities plus expected development on reported claims	$ 2,273,000
Cumulative number of reported claims	872
Accident Year 2014 [Member] | Casualty - claims made [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 9,628,000	9,491,000	9,415,000	8,290,000	6,385,000	5,039,000	1,865,000	435,000
Incurred claims and claim adjustment expense, net	10,266,000	10,620,000	10,988,000	10,948,000	11,217,000	11,748,000	14,289,000	18,847,000
Total of IBNR liabilities plus expected development on reported claims	$ 638,000
Cumulative number of reported claims	273
Accident Year 2014 [Member] | Casualty - occurrence [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 35,807,000	34,338,000	31,026,000	23,771,000	17,576,000	8,489,000	3,081,000	698,000
Incurred claims and claim adjustment expense, net	41,367,000	42,434,000	41,859,000	39,313,000	36,678,000	38,049,000	40,668,000	$ 47,805,000
Total of IBNR liabilities plus expected development on reported claims	$ 4,374,000
Cumulative number of reported claims	1,230
Accident Year 2015 [Member] | Casualty - claims made [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 12,142,000	11,522,000	11,372,000	9,238,000	7,563,000	4,496,000	217,000
Incurred claims and claim adjustment expense, net	13,414,000	13,548,000	13,942,000	13,583,000	14,896,000	16,777,000	18,883,000
Total of IBNR liabilities plus expected development on reported claims	$ 937,000
Cumulative number of reported claims	258
Accident Year 2015 [Member] | Casualty - occurrence [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 44,161,000	41,724,000	37,690,000	28,385,000	12,685,000	3,161,000	941,000
Incurred claims and claim adjustment expense, net	54,090,000	54,090,000	54,697,000	52,100,000	49,122,000	51,739,000	$ 59,717,000
Total of IBNR liabilities plus expected development on reported claims	$ 7,108,000
Cumulative number of reported claims	1,700
Accident Year 2016 [Member] | Casualty - claims made [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 12,105,000	11,381,000	9,839,000	6,907,000	3,015,000	1,158,000
Incurred claims and claim adjustment expense, net	13,602,000	13,583,000	14,322,000	14,675,000	14,693,000	19,170,000
Total of IBNR liabilities plus expected development on reported claims	$ 1,431,000
Cumulative number of reported claims	310
Accident Year 2016 [Member] | Casualty - occurrence [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 43,311,000	34,437,000	28,924,000	17,225,000	6,015,000	1,099,000
Incurred claims and claim adjustment expense, net	60,861,000	57,401,000	55,534,000	53,549,000	55,680,000	$ 61,440,000
Total of IBNR liabilities plus expected development on reported claims	$ 10,378,000
Cumulative number of reported claims	1,518
Accident Year 2017 [Member] | Property [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 11,605,000	11,608,000	11,602,000	11,233,000	9,938,000
Incurred claims and claim adjustment expense, net	11,606,000	11,631,000	11,676,000	11,705,000	12,473,000
Total of IBNR liabilities plus expected development on reported claims	$ 0
Cumulative number of reported claims	1,041
Accident Year 2017 [Member] | Casualty - claims made [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 11,357,000	10,484,000	8,252,000	4,897,000	340,000
Incurred claims and claim adjustment expense, net	14,989,000	15,794,000	16,120,000	17,097,000	18,116,000
Total of IBNR liabilities plus expected development on reported claims	$ 2,434,000
Cumulative number of reported claims	371
Accident Year 2017 [Member] | Casualty - occurrence [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 46,025,000	37,736,000	22,407,000	9,352,000	1,581,000
Incurred claims and claim adjustment expense, net	71,117,000	70,641,000	68,985,000	67,151,000	$ 71,126,000
Total of IBNR liabilities plus expected development on reported claims	$ 18,282,000
Cumulative number of reported claims	1,843
Accident Year 2018 [Member] | Property [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 12,660,000	12,599,000	11,646,000	9,132,000
Incurred claims and claim adjustment expense, net	12,704,000	12,698,000	12,004,000	11,559,000
Total of IBNR liabilities plus expected development on reported claims	$ 26,000
Cumulative number of reported claims	650
Accident Year 2018 [Member] | Casualty - claims made [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 10,330,000	8,931,000	5,030,000	507,000
Incurred claims and claim adjustment expense, net	17,057,000	18,612,000	20,234,000	22,429,000
Total of IBNR liabilities plus expected development on reported claims	$ 5,108,000
Cumulative number of reported claims	464
Accident Year 2018 [Member] | Casualty - occurrence [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 35,138,000	22,860,000	10,995,000	2,638,000
Incurred claims and claim adjustment expense, net	83,952,000	78,386,000	78,331,000	$ 86,157,000
Total of IBNR liabilities plus expected development on reported claims	$ 33,875,000
Cumulative number of reported claims	1,918
Accident Year 2019 [Member] | Property [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 13,996,000	12,581,000	9,852,000
Incurred claims and claim adjustment expense, net	15,572,000	13,909,000	14,914,000
Total of IBNR liabilities plus expected development on reported claims	$ 154,000
Cumulative number of reported claims	642
Accident Year 2019 [Member] | Casualty - claims made [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 10,123,000	6,005,000	2,487,000
Incurred claims and claim adjustment expense, net	26,426,000	29,056,000	34,693,000
Total of IBNR liabilities plus expected development on reported claims	$ 11,037,000
Cumulative number of reported claims	550
Accident Year 2019 [Member] | Casualty - occurrence [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 30,518,000	16,687,000	3,944,000
Incurred claims and claim adjustment expense, net	108,138,000	109,994,000	$ 112,266,000
Total of IBNR liabilities plus expected development on reported claims	$ 63,673,000
Cumulative number of reported claims	2,006
Accident Year 2020 [Member] | Property [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 30,321,000	19,897,000
Incurred claims and claim adjustment expense, net	37,939,000	40,612,000
Total of IBNR liabilities plus expected development on reported claims	$ 1,234,000
Cumulative number of reported claims	2,294
Accident Year 2020 [Member] | Casualty - claims made [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 7,446,000	1,002,000
Incurred claims and claim adjustment expense, net	44,641,000	55,630,000
Total of IBNR liabilities plus expected development on reported claims	$ 31,667,000
Cumulative number of reported claims	772
Accident Year 2020 [Member] | Casualty - occurrence [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 8,673,000	2,400,000
Incurred claims and claim adjustment expense, net	136,212,000	$ 154,619,000
Total of IBNR liabilities plus expected development on reported claims	$ 119,143,000
Cumulative number of reported claims	1,761
Accident Year 2021 | Property [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 14,268,000
Incurred claims and claim adjustment expense, net	36,531,000
Total of IBNR liabilities plus expected development on reported claims	$ 9,323,000
Cumulative number of reported claims	1,034
Accident Year 2021 | Casualty - claims made [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 1,146,000
Incurred claims and claim adjustment expense, net	84,018,000
Total of IBNR liabilities plus expected development on reported claims	$ 74,017,000
Cumulative number of reported claims	1,035
Accident Year 2021 | Casualty - occurrence [Member]
Claims Development
Cumulative paid claims and allocated claim adjustment expense, net	$ 3,205,000
Incurred claims and claim adjustment expense, net	200,598,000
Total of IBNR liabilities plus expected development on reported claims	$ 190,069,000
Cumulative number of reported claims	1,332

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Reserves for unpaid losses and loss adjustment expenses Historical Claims Duration (Details)	Dec. 31, 2021 Rate
Property [Member]
Historical Claims Duration [Line Items]
Historical Claims Duration, Year One	62.50%
Historical Claims Duration, Year Two	19.00%
Historical Claims Duration, Year Three	6.60%
Historical Claims Duration, Year Four	0.30%
Historical Claims Duration, Year Five	0.00%
Casualty - claims made [Member]
Historical Claims Duration [Line Items]
Historical Claims Duration, Year One	4.90%
Historical Claims Duration, Year Two	20.50%
Historical Claims Duration, Year Three	25.70%
Historical Claims Duration, Year Four	12.60%
Historical Claims Duration, Year Five	9.90%
Historical Claims Duration, Year Six	12.30%
Historical Claims Duration, Year Seven	2.40%
Historical Claims Duration, Year Eight	1.10%
Historical Claims Duration, Year Nine	1.90%
Historical Claims Duration, Year Ten	0.00%
Casualty - occurrence [Member]
Historical Claims Duration [Line Items]
Historical Claims Duration, Year One	2.40%
Historical Claims Duration, Year Two	9.10%
Historical Claims Duration, Year Three	15.00%
Historical Claims Duration, Year Four	20.40%
Historical Claims Duration, Year Five	14.40%
Historical Claims Duration, Year Six	13.00%
Historical Claims Duration, Year Seven	7.60%
Historical Claims Duration, Year Eight	4.50%
Historical Claims Duration, Year Nine	2.30%
Historical Claims Duration, Year Ten	0.00%

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Reserves for unpaid losses and loss adjustment expenses Reconciliation of Claims Development to Liability (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Liability for claims and claim adjustment expense, net	$ 696,379
Reinsurance recoverable for unpaid losses	117,561	$ 83,730	$ 69,792	$ 55,389
Unallocated claim adjustment expenses	67,404
Property [Member]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Liability for claims and claim adjustment expense, net	31,502
Reinsurance recoverable for unpaid losses	16,777
Casualty - claims made [Member]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Liability for claims and claim adjustment expense, net	150,699
Reinsurance recoverable for unpaid losses	16,581
Casualty - occurrence [Member]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Liability for claims and claim adjustment expense, net	514,178
Reinsurance recoverable for unpaid losses	$ 84,203

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Reinsurance, Effects of Reinsurance on Premiums Written and Earned (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Written [Abstract]
Direct	$ 764,373	$ 552,814	$ 389,569
Assumed	0	0	125
Ceded	(104,164)	(74,595)	(47,633)
Net written premiums	660,209	478,219	342,061
Earned [Abstract]
Direct	677,630	479,181	330,464
Assumed	0	21	104
Ceded	(94,751)	(66,448)	(47,587)
Net earned premiums	582,879	412,754	282,981
Ceded incurred losses and loss adjustment expenses	$ 49,700	$ 42,000	$ 27,200

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Reinsurance Reinsurance Balances (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reinsurance Disclosure [Abstract]
Reinsurance recoverables on paid losses, gross	$ 5,409	$ 9,485
Reinsurance recoverable for unpaid losses	117,561	83,730	$ 69,792	$ 55,389
Reinsurance recoverables	122,970	93,215
Reinsurance Recoverable, Allowance for Credit Loss	400	300	$ 300
Concentration Risk [Line Items]
Reinsurance recoverables	122,970	93,215
Ceded unearned premiums	33,679	$ 24,265
Credit Risk Reinsurer One [Member]
Reinsurance Disclosure [Abstract]
Reinsurance recoverables	28,000
Concentration Risk [Line Items]
Reinsurance recoverables	28,000
Ceded unearned premiums	8,400
Credit Risk Reinsurer Two [Member]
Reinsurance Disclosure [Abstract]
Reinsurance recoverables	27,400
Concentration Risk [Line Items]
Reinsurance recoverables	27,400
Ceded unearned premiums	5,500
Credit Risk Reinsurer Three [Member]
Reinsurance Disclosure [Abstract]
Reinsurance recoverables	16,300
Concentration Risk [Line Items]
Reinsurance recoverables	16,300
Ceded unearned premiums	3,500
Credit Risk Reinsurer Four [Member]
Reinsurance Disclosure [Abstract]
Reinsurance recoverables	10,200
Concentration Risk [Line Items]
Reinsurance recoverables	10,200
Ceded unearned premiums	3,300
Credit Risk Reinsurer Five [Member]
Reinsurance Disclosure [Abstract]
Reinsurance recoverables	9,500
Concentration Risk [Line Items]
Reinsurance recoverables	9,500
Ceded unearned premiums	$ 3,300
Prepaid reinsurance premiums ceded to five reinsurers as a percentage of total ceded unearned premium balance [Member] | Major Reinsurers [Member] | Reinsurer Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	71.60%
Reinsurance recoverables on paid and unpaid losses from the Company’s five largest reinsurers as percent of total reinsurance recoverables [Member] | Major Reinsurers [Member] | Reinsurer Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	74.30%

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Stockholders' Equity Capital Stock (Details) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock, shares issued	0	0
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	100,000,000	100,000,000
Preferred stock, outstanding (in shares)	0	0
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01

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Stockholders' Equity, Public Offering (Details) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	Aug. 07, 2020	Aug. 12, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Stockholders' Equity Attributable to Parent [Abstract]
Stock issued, shares	310,500	741,750		311,000	742,000
Share price (in dollars per share)	$ 190.00	$ 93.00
Net proceeds from public offering, net of discounts, commissions and other offering costs	$ 56,700	$ 65,900	$ 0	$ 56,698	$ 65,879

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Stockholders' Equity, Equity-based Compensation, Options (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Jul. 27, 2016	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation		$ 4,800	$ 3,600	$ 2,700
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Intrinsic value of options exercised		$ 10,400	$ 37,000
Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual term of option granted	10 years
Award vesting period	4 years
Granted (in dollars per share)	$ 2.71
Assumptions used in estimating fair value of options granted [Abstract]
Risk-free rate of return		1.26%
Dividend yield		1.25%
Expected share price volatility		18.50%
Expected life		6 years 3 months 18 days
Options outstanding, number of awards [Roll Forward]
Options, beginning of the year (in shares)		387,738
Granted, shares		0
Forfeited (in shares)		(934)
Exercised (in shares)		(61,371)
Options, end of year (in shares)		325,433	387,738
Exercisable, shares		325,433
Options outstanding, weighted average exercise price [Abstract]
Options beginning of the year (in dollars per share)		$ 16.00
Granted	$ 16.00	0
Forfeited		16.00
Exercised		16.00
Options end of the year (in dollars per share)		16.00	$ 16.00
Exercisable		$ 16.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Outstanding, weighted average remaining contractual term		4 years 7 months 6 days
Exercisable, weighted average remaining contractual term		4 years 7 months 6 days
Outstanding, aggregate intrinsic value		$ 72,210
Exercisable, aggregate intrinsic value		$ 72,210
2016 Omnibus Incentive Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance	2,073,832
2016 Omnibus Incentive Plan [Member] | Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted (in shares)	1,036,916

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Stockholders' Equity - Equity-based Compensation, Restricted Stock (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares withheld for taxes	13,000	12,000	7,000
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares withheld for taxes	12,958
Vested in period, fair value	$ 6.8	$ 5.8	$ 2.1
Nonvested Restricted Stock, Number of Shares [Roll Forward]
Nonvested outstanding at the beginning of the period, shares		108,392
Granted, shares	35,870
Vested, shares	(41,121)
Forfeited, shares	(7,157)
Nonvested outstanding at the end of the period, shares	95,984
Nonvested Restricted Stock, Weighted Average Grant Date Fair Value [Abstract]
Nonvested outstanding at the beginning of the period	$ 97.40
Granted	185.00	$ 147.45	$ 80.59
Vested	87.82
Forfeited	128.11
Nonvested outstanding at the end of the period	$ 131.94	$ 97.40
Unrecognized stock-based compensation expense	$ 9.1
Compensation cost not yet recognized, period	2 years 7 months 6 days
Minimum [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	1 year
Maximum [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	4 years

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Stockholders' Equity - Subsequent Event (Details) - $ / shares			12 Months Ended
	Feb. 14, 2022	Jan. 01, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Subsequent Event [Member] | Dividend Declared [Member]
Subsequent Event [Line Items]
Dividend declared date	Feb. 14, 2022
Dividends payable, per share	$ 0.13
Dividend payable date	Mar. 14, 2022
Dividend record date	Mar. 02, 2022
Restricted Stock [Member]
Subsequent Event [Line Items]
Grant date fair value			$ 185.00	$ 147.45	$ 80.59
Restricted Stock [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Granted		3,528
Grant date fair value		$ 237.89

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Earnings per share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of numerator and denominator of the basic and diluted earnings per share computations [Abstract]
Net income	$ 152,659	$ 88,419	$ 63,316
Basic earnings per share [Abstract]
Earnings per share - basic	$ 6.73	$ 3.96	$ 2.94
Diluted earnings per share [Abstract]
Earnings per share - diluted	$ 6.62	$ 3.87	$ 2.86
Basic weighted average shares outstanding [Abstract]
Weighted average shares outstanding - basic	22,693,000	22,319,000	21,528,000
Dilutive effect of shares issued under stock compensation arrangements [Abstract]
Dilutive effect of shares issued under stock compensation arrangements (in shares)	369,000	533,000	608,000
Diluted weighted average shares outstanding [Abstract]
Weighted average shares outstanding - diluted (in shares)	23,062,000	22,852,000	22,136,000
Antidilutive securities (in shares)	30,000	35,000	54,000
Stock options [Member]
Dilutive effect of shares issued under stock compensation arrangements [Abstract]
Dilutive effect of shares issued under stock compensation arrangements (in shares)	324,000	469,000	570,000
Restricted Stock [Member]
Dilutive effect of shares issued under stock compensation arrangements [Abstract]
Dilutive effect of shares issued under stock compensation arrangements (in shares)	45,000	64,000	38,000

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Credit Agreement (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Current borrowing capacity	$ 50,000
Accordion feature	$ 30,000
Maturity date	May 28, 2024
Interest rate description	Eurodollar loans bear an interest rate per annum equal to adjusted LIBOR for the applicable interest period plus a margin of 1.75%. ABR loans bear an interest rate per annum equal to the higher of the prime rate, the New York Federal Reserve Board Rate or the one-month adjusted LIBOR, plus the applicable margin of 0.75% to 1.75%, depending on which interest option was applicable for the particular ABR loan.
Credit facility	$ 42,696	$ 42,570
Debt issuance costs	$ 300
Weighted average interest rate	1.92%
Interest expense	$ 1,000	1,000	$ 200
Interest capitalized		800	200
Interest paid	$ 900	$ 800	$ 100

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Employee benefit plan (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Retirement Benefits [Abstract]
Expenses related to employee benefit plan	$ 2.2	$ 1.7	$ 1.3

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Other comprehensive income (loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized gains (losses) arising during the period, before income taxes	$ (26,792)	$ 37,387	$ 19,190
Income taxes	5,626	(7,851)	(4,029)
Unrealized gains (losses) arising during the period, net of income tax	(21,166)	29,536	15,161
Less reclassification adjustment [Abstract]
Net realized investment gains	2,644	2,119	489
Income taxes	(555)	(445)	(102)
Reclassification adjustment included in net income	2,089	1,674	387
Other comprehensive income (loss)	$ (23,255)	$ 27,862	$ 14,774

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Underwriting information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) Rate	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Revenue from External Customer [Line Items]
Number of operating segments	1
Gross written premiums	$ 764,373	$ 552,814	$ 389,694
Small Business [Member]
Revenue from External Customer [Line Items]
Gross written premiums	112,142	83,289	63,181
Excess Casualty [Member]
Revenue from External Customer [Line Items]
Gross written premiums	109,464	76,715	51,225
Construction [Member]
Revenue from External Customer [Line Items]
Gross written premiums	103,540	87,206	71,035
Commercial Property [Member]
Revenue from External Customer [Line Items]
Gross written premiums	78,722	51,789	29,115
Allied Health [Member]
Revenue from External Customer [Line Items]
Gross written premiums	59,208	37,562	23,962
Products Liability [Member]
Revenue from External Customer [Line Items]
Gross written premiums	55,070	38,306	26,333
Life Sciences [Member]
Revenue from External Customer [Line Items]
Gross written premiums	41,297	31,027	17,821
General Casualty [Member]
Revenue from External Customer [Line Items]
Gross written premiums	36,042	24,591	20,931
Professional Liability [Member]
Revenue from External Customer [Line Items]
Gross written premiums	33,226	27,051	20,029
Management Liability [Member]
Revenue from External Customer [Line Items]
Gross written premiums	32,163	24,061	14,820
Energy [Member]
Revenue from External Customer [Line Items]
Gross written premiums	19,925	16,985	15,371
Environmental [Member]
Revenue from External Customer [Line Items]
Gross written premiums	13,584	8,568	5,179
Entertainment
Revenue from External Customer [Line Items]
Gross written premiums	12,396	4,614	2,348
Health Care [Member]
Revenue from External Customer [Line Items]
Gross written premiums	11,271	7,666	5,963
Inland Marine [Member]
Revenue from External Customer [Line Items]
Gross written premiums	9,703	6,910	3,467
Public Entity [Member]
Revenue from External Customer [Line Items]
Gross written premiums	9,207	3,007	580
Commercial Insurance [Member]
Revenue from External Customer [Line Items]
Gross written premiums	411	1,757	1,674
Commercial [Member]
Revenue from External Customer [Line Items]
Gross written premiums	737,371	531,104	373,034
Personal Insurance [Member]
Revenue from External Customer [Line Items]
Gross written premiums	$ 27,002	$ 21,710	$ 16,660
Revenue Benchmark [Member]
Revenue from External Customer [Line Items]
Number of insurance brokers	2
Insurance brokers greater than 10% of gross written premium	0
Major Insurance Brokers, Group One [Member] | Revenue Benchmark [Member]
Revenue from External Customer [Line Items]
Gross written premiums
Major Insurance Brokers, Group One [Member] | Revenue Benchmark [Member] | Customer Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk, percentage | Rate	17.90%
Major Insurance Brokers, Group Two [Member] | Revenue Benchmark [Member]
Revenue from External Customer [Line Items]
Gross written premiums	$ 118,800
Major Insurance Brokers, Group Three [Member] | Revenue Benchmark [Member]
Revenue from External Customer [Line Items]
Gross written premiums	$ 137,000
Major Insurance Brokers, Group Three [Member] | Revenue Benchmark [Member] | Customer Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk, percentage | Rate	15.50%

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Statutory financial information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments [Abstract]
Statutory net income	$ 115,885	$ 54,338	$ 40,917
Statutory capital and surplus	$ 606,910	$ 476,066	$ 348,811
Percentage of policyholder surplus as of end of prior year used in determining maximum dividend distribution	10.00%
Maximum dividend distribution that can be paid without prior approval	$ 114,000

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Schedule I-Summary of Investments-Other than Related Parties (Details) $ in Thousands	Dec. 31, 2021 USD ($)
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	$ 1,490,414
Fair Value	1,564,677
Amount	1,564,677
Fixed Maturities [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	1,371,519
Fair Value	1,392,066
Amount	1,392,066
US Treasury and Government [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	6,936
Fair Value	6,847
Amount	6,847
US States and Political Subdivisions Debt Securities [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	216,375
Fair Value	228,045
Amount	228,045
Debt Security, Corporate, US [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	450,594
Fair Value	458,487
Amount	458,487
Asset-backed Securities [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	299,810
Fair Value	301,775
Amount	301,775
Residential Mortgage Backed Securities [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	340,804
Fair Value	337,685
Amount	337,685
Commercial mortgage-backed aecurities [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	57,000
Fair Value	59,227
Amount	59,227
Equity Securities, Investment Summary [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	118,895
Fair Value	172,611
Amount	172,611
Exchange Traded Funds [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	70,151
Fair Value	123,389
Amount	123,389
Nonredeemable Preferred Stock [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	48,744
Fair Value	49,222
Amount	$ 49,222

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Schedule II - Condensed Financial Information of Registrant, Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Assets
Cash and cash equivalents	$ 121,040	$ 77,093	$ 100,408	$ 75,089
Deferred income tax asset, net	2,109	0
Income taxes receivable	5,100	1,200
Other assets	57,012	50,133
Total assets	2,025,655	1,546,896
Liabilities:
Accounts payable and accrued expenses	23,250	13,651
Credit facility	42,696	42,570
Other liabilities	15,188	118
Total liabilities	1,326,320	970,658
Stockholders' Equity [Abstract]
Common stock	228	228
Additional paid-in capital	295,040	291,315
Retained earnings	385,942	243,315
Accumulated other comprehensive income	18,125	41,380
Stockholders' equity	699,335	576,238	405,880	263,986
Total liabilities and stockholders' equity	2,025,655	1,546,896
Parent Company [Member]
Assets
Cash and cash equivalents	14,596	8,395	$ 14,726	$ 10,016
Due from subsidiaries	0	7,792
Investment in subsidiaries	721,369	600,931
Deferred income tax asset, net	934	587
Income taxes receivable	5,059	1,177
Other assets	314	290
Total assets	742,272	619,172
Liabilities:
Accounts payable and accrued expenses	121	302
Due to Affiliate	47	0
Credit facility	42,696	42,570
Other liabilities	73	62
Total liabilities	42,937	42,934
Stockholders' Equity [Abstract]
Common stock	228	228
Additional paid-in capital	295,040	291,315
Retained earnings	385,942	243,315
Accumulated other comprehensive income	18,125	41,380
Stockholders' equity	699,335	576,238
Total liabilities and stockholders' equity	$ 742,272	$ 619,172

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Schedule II - Condensed Financial Information of Registrant, Statements of Income and Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues:
Revenues	$ 639,779	$ 459,886	$ 315,888
Expenses [Abstract]
Other expenses	1,663	1,375	57
Total expenses	450,978	359,473	239,837
Income tax benefit	36,142	11,994	12,735
Net income	152,659	88,419	63,316
Other Comprehensive Income (Loss) [Abstract]
Comprehensive income	129,404	116,281	78,090
Parent Company [Member]
Revenues:
Revenues	7,002	5,709	4,502
Expenses [Abstract]
Other operating expenses	7,972	6,624	5,215
Other expenses	994	1,332	0
Total expenses	8,966	7,956	5,215
Loss before equity in net income of subsidiaries	(1,964)	(2,247)	(713)
Income tax benefit	(3,424)	(8,779)	(2,714)
Income before equity in net income of subsidiaries	1,460	6,532	2,001
Equity in net income of subsidiaries	151,199	81,887	61,315
Net income	152,659	88,419	63,316
Other Comprehensive Income (Loss) [Abstract]
Equity in other comprehensive earnings (losses) of subsidiaries	(23,255)	27,862	14,774
Comprehensive income	$ 129,404	$ 116,281	$ 78,090

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Schedule II - Condensed Financial Information of Registrant, Statements of Cash Flows (Details) - USD ($)			12 Months Ended
	Aug. 07, 2020	Aug. 12, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating activities:
Net income			$ 152,659,000	$ 88,419,000	$ 63,316,000
Adjustments to reconcile net income to net cash used in operating activities:
Deferred tax (benefit) expense			(576,000)	616,000	(125,000)
Stock compensation expense			4,844,000	3,575,000	2,742,000
Dividends received from subsidiary			8,000,000	0	5,000,000
Net cash provided by operating activities			407,042,000	279,974,000	178,357,000
Net Cash Provided by (Used in) Investing Activities [Abstract]
Net cash provided by (used in) investing activities			(351,955,000)	(379,433,000)	(230,793,000)
Financing activities:
Proceeds from issuance of common stock, net of issuance costs	$ 56,700,000	$ 65,900,000	0	56,698,000	65,879,000
Common stock issued, stock options exercised			982,000	3,622,000	2,750,000
Payroll taxes withheld and remitted on share-based payments			(2,101,000)	(1,803,000)	(617,000)
Dividends paid			(10,021,000)	(8,073,000)	(6,929,000)
Proceeds from credit facility			0	25,700,000	17,300,000
Debt issuance costs			0	0	(628,000)
Net cash provided by (used in) financing activities			(11,140,000)	76,144,000	77,755,000
Net change in cash and cash equivalents			43,947,000	(23,315,000)	25,319,000
Cash and cash equivalents at beginning of period			77,093,000	100,408,000	75,089,000
Cash and cash equivalents at end of period			121,040,000	77,093,000	100,408,000
Parent Company [Member]
Operating activities:
Net income			152,659,000	88,419,000	63,316,000
Adjustments to reconcile net income to net cash used in operating activities:
Deferred tax (benefit) expense			(347,000)	(68,000)	(150,000)
Stock compensation expense			4,844,000	3,575,000	2,742,000
Equity in undistributed earnings of subsidiaries			(151,199,000)	(81,887,000)	(61,315,000)
Changes in operating assets and liabilities			3,955,000	7,520,000	(14,247,000)
Dividends received from subsidiary			8,000,000	0	5,000,000
Net cash provided by operating activities			17,912,000	17,559,000	(4,654,000)
Net Cash Provided by (Used in) Investing Activities [Abstract]
Contribution to subsidiary			(571,000)	100,034,000	68,391,000
Net cash provided by (used in) investing activities			(571,000)	(100,034,000)	(68,391,000)
Financing activities:
Proceeds from issuance of common stock, net of issuance costs			0	56,698,000	65,879,000
Common stock issued, stock options exercised			982,000	3,622,000	2,750,000
Payroll taxes withheld and remitted on share-based payments			(2,101,000)	(1,803,000)	617,000
Dividends paid			(10,021,000)	(8,073,000)	(6,929,000)
Proceeds from credit facility			0	25,700,000	17,300,000
Debt issuance costs			0	0	(628,000)
Net cash provided by (used in) financing activities			(11,140,000)	76,144,000	77,755,000
Net change in cash and cash equivalents			6,201,000	(6,331,000)	4,710,000
Cash and cash equivalents at beginning of period			8,395,000	14,726,000	10,016,000
Cash and cash equivalents at end of period			$ 14,596,000	$ 8,395,000	$ 14,726,000

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Schedule II - Condensed Financial Information of Registrant, Notes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Condensed Financial Information Disclosure [Abstract]
Current borrowing capacity	$ 50,000,000
Accordion feature	$ 30,000,000
Maturity date	May 28, 2024
Interest rate description	Eurodollar loans bear an interest rate per annum equal to adjusted LIBOR for the applicable interest period plus a margin of 1.75%. ABR loans bear an interest rate per annum equal to the higher of the prime rate, the New York Federal Reserve Board Rate or the one-month adjusted LIBOR, plus the applicable margin of 0.75% to 1.75%, depending on which interest option was applicable for the particular ABR loan.
Credit facility	$ 42,696,000	$ 42,570,000
Debt issuance costs	$ 300,000
Weighted average interest rate	1.92%
Interest expense	$ 1,000,000	1,000,000	$ 200,000
Interest capitalized		800,000	200,000
Interest paid	900,000	800,000	100,000
Cash dividends paid to parent company by consolidated subsidiaries	$ 8,000,000	$ 0	$ 5,000,000

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Schedule V - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Reinsurance Recoverable, Allowance for Credit Loss	$ 400	$ 300	$ 300
Accounting Standards Update 2016-13 [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Adoption of ASU 2016-13	400
Allowance for Premiums Receivable [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of period	3,087	2,705	2,615
Balance at beginning of period, net of adoption of new accounting standard for credit losses				$ 2,345
Additions amounts charged to expense	2,189	1,240	835
Deductions amounts written off or disposals	(1,885)	(498)	(745)
Balance at end of period	3,391	3,087	2,705
Valuation Allowance for Deferred Tax Assets [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of period	3,491	1,592	780
Additions amounts charged to expense	668	1,899	812
Deductions amounts written off or disposals	0	0	0
Balance at end of period	4,159	3,491	1,592
Allowance for Reinsurance Recoverable [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of period	282	282
Additions amounts charged to expense	118	0
Deductions amounts written off or disposals	0	0
Balance at end of period	$ 400	$ 282	$ 282