10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-Q

(Mark One)

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

For the quarterly period ended March 31, 2018

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: 001-38270

AQUANTIA CORP.

(Exact Name of Registrant as Specified in its Charter)

Delaware	20-1199709
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

105 E. Tasman Drive

San Jose, CA 95134

(Address of principal executive offices)

Registrant’s telephone number, including area code: (408) 228-8300

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 and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted 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 and post such files).    Yes  ☑    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, 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 Exchange Act.

Large accelerated filer	☐	Accelerated filer	☐
Non-accelerated filer	☑  (Do not check if a small reporting company)	Small 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 is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐    No  ☑

As of April 30, 2018, the registrant had 33,536,799 shares of common stock, $0.00001 par value per share, outstanding.

Table of Contents

		Page
PART I.	FINANCIAL INFORMATION	3
Item 1.	Financial Statements	3
	Unaudited Condensed Consolidated Balance Sheets as of March 31, 2018 and December 31, 2017	3
	Unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss for the Three Months Ended March 31, 2018 and 2017	4
	Unaudited Condensed Consolidated Statements of Cash Flows for the Three Months Ended March 31, 2018 and 2017	5
	Notes to Unaudited Condensed Consolidated Financial Statements	6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	17
Item 3.	Quantitative and Qualitative Disclosure About Market Risk	24
Item 4.	Controls and Procedures	25
PART II.	OTHER INFORMATION	26
Item 1.	Legal Proceedings	26
Item 1A.	Risk Factors	26
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	43
Item 6.	Exhibits	45
Exhibit Index
Signatures		46

2

PART I—FINANCIAL INFORMATION

Item 1. Financial Statements

AQUANTIA CORP.

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands, except for par value and share amounts)

(unaudited)

	March 31,			December 31,
	2018			2017
Assets
Current assets:
Cash and cash equivalents	$	4,606		$	8,040
Short-term investments		58,435			48,362
Accounts receivable		10,417			15,012
Inventories		16,156			18,469
Prepaid expenses and other current assets		3,466			5,623
Total current assets		93,080			95,506
Property and equipment, net		9,447			9,973
Intangible assets, net		4,354			4,556
Other assets		535			331
Total assets	$	107,416		$	110,366
Liabilities and Stockholders’ Equity (Deficit)
Current liabilities:
Accounts payable	$	5,792		$	7,059
Accrued liabilities		8,039			9,217
Total current liabilities		13,831			16,276
Other long-term liabilities		3,179			3,176
Total liabilities		17,010			19,452
Commitments and contingencies (Note 6)
Stockholders’ equity:
Common stock, $0.00001 par value, 400,000,000 shares authorized as of each    of March 31, 2018 and December 31, 2017; 33,536,799 and 33,523,683 shares    outstanding at March 31, 2018 and December 31, 2017, respectively		—			—
Additional paid-in capital		289,675			288,719
Accumulated other comprehensive loss		(227	)		(96	)
Accumulated deficit		(199,042	)		(197,709	)
Total stockholders’ equity		90,406			90,914
Total liabilities and stockholders’ equity	$	107,416		$	110,366

See accompanying notes to condensed consolidated financial statements.

3

AQUANTIA CORP.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS

(in thousands, except per share amounts)

(unaudited)

	Three Months Ended
	March 31,
	2018			2017
Revenue	$	28,358		$	23,643
Cost of revenue		12,241			10,047
Gross profit		16,117			13,596
Operating expenses:
Research and development		12,574			10,407
Sales and marketing		2,287			1,634
General and administrative		2,997			2,227
Total operating expenses		17,858			14,268
Loss from operations		(1,741	)		(672	)
Other income (expense):
Interest expense		—			(559	)
Change in fair value of convertible preferred stock warrant liability		—			(660	)
Other income, net		248			17
Total other income (expense)		248			(1,202	)
Loss before income tax expense		(1,493	)		(1,874	)
Provision for (benefit from) income taxes		(125	)		151
Net loss	$	(1,368	)	$	(2,025	)
Net loss per share, basic and diluted	$	(0.04	)	$	(0.45	)
Weighted-average shares used to compute net loss per share, basic and diluted		33,495			4,477
Comprehensive income:
Net loss	$	(1,368	)	$	(2,025	)
Other comprehensive income (loss), net of tax:
Unrealized gains and losses - short-term investments		(131	)		—
Comprehensive loss	$	(1,499	)	$	(2,025	)

See accompanying notes to condensed consolidated financial statements.

4

AQUANTIA CORP.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(unaudited)

	Three Months Ended
	March 31,
	2018			2017
Cash flows from operating activities
Net loss	$	(1,368	)	$	(2,025	)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization		1,385			1,033
Stock-based compensation expense		978			242
Change in fair value of convertible preferred stock warrant liability		—			660
Amortization of debt discount		—			105
Non-cash interest expense related to debt costs		—			81
Changes in operating assets and liabilities:
Accounts receivable		4,595			(2,226	)
Inventories		2,313			(579	)
Prepaid expenses and other assets		1,953			(838	)
Accounts payable		(1,193	)		(563	)
Accrued and other liabilities		(860	)		(1,236	)
Net cash provided by (used in) operating activities		7,803			(5,346	)
Cash flows from investing activities
Purchases of property and equipment		(731	)		(905	)
Proceeds from sales and maturity of short-term investments		5,400			—
Purchases of short-term investments		(15,604	)		—
Net cash used in investing activities		(10,935	)		(905	)
Cash flows from financing activities
Repayments on short and long-term borrowings		—			(2,525	)
Proceeds from exercise of stock options and preferred stock warrants, net		—			225
Purchases of IP licenses		(26	)		(65	)
Payment of costs related to initial public offering		(276	)		(68	)
Net cash used in financing activities		(302	)		(2,433	)
Net decrease in cash and cash equivalents		(3,434	)		(8,684	)
Cash and cash equivalents at beginning of period		8,040			28,893
Cash and cash equivalents at end of period	$	4,606		$	20,209
Non-cash financing and investing transactions
Cashless exercises of warrants, net of assumed proceeds from shares	$	550		$	—
Unpaid costs related to initial public offering	$	—		$	396
Property and equipment received and accrued	$	345		$	107

See accompanying notes to condensed consolidated financial statements.

5

AQUANTIA CORP.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

1. Organization, Description of Business and Basis for Presentation

Organization—Aquantia Corp. (together with its subsidiaries, the “Company”) was incorporated in Delaware on January 27, 2004. The Company is a leader in the design, development and marketing of advanced high-speed communications integrated circuits, or ICs, for Ethernet connectivity in the data center, enterprise infrastructure, access and automotive markets.

Initial Public Offering—On November 7, 2017, the Company completed its initial public offering (“IPO”) of 7,840,700 shares of its common stock at the offering price of $9.00 per share, including 1,022,700 shares pursuant to the underwriters’ option to purchase additional shares of the Company’s common stock, resulting in net proceeds to the Company of $65.6 million after deducting underwriters' discounts and commissions of $4.9 million, but before deducting total offering expenses of approximately $5.7 million which were reclassified to additional paid-in capital upon completion of the IPO. Immediately prior to the closing of the IPO, all outstanding shares of the Company’s convertible preferred stock automatically converted into shares of its common stock and the Company’s convertible preferred stock warrants automatically converted into warrants to purchase common stock.  The Company used $9.2 million and $0.3 million of the IPO proceeds, respectively, to repay the outstanding indebtedness under the Company’s loan from Pinnacle Ventures, L.L.C. and the termination fee for the line of credit from Hercules in 2017, respectively.

Basis of Presentation and Principles of Consolidation—The accompanying unaudited condensed consolidated financial statements included herein have been prepared by us in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”), for interim financial information and the rules and regulations of the Securities and Exchange Commission (“SEC”). In the opinion of management, normal recurring adjustments considered necessary for a fair presentation have been reflected in these condensed consolidated financial statements.  Certain information and note disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations.

The condensed consolidated balance sheet as of December 31, 2017 has been derived from the audited financial statements for the fiscal year then ended included in the Company’s Annual Report on Form 10-K filed with the SEC on March 7, 2018 (the “2017 Annual Report on Form 10-K”), but does not include all of the information and notes required by U.S. GAAP for complete consolidated financial statements. The financial information included in this Quarterly Report on Form 10-Q should be read in conjunction with the audited consolidated financial statements as of and for the fiscal year ended December 31, 2017 and the related notes thereto included in the 2017 Annual Report on Form 10-Q.

2. Summary of Significant Accounting Policies

During the three months ended March 31, 2018, there have been no changes in our significant accounting policies as described in the Company’s 2017Annual Report on Form 10-K, except as discussed below:

Recent Accounting Pronouncements—

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The new guidance requires entities to recognize assets and liabilities for leases with terms of more than 12 months and additional disclosures to better understand the amount, timing and uncertainty of cash flows arising from leases. The guidance is effective for financial statements issued for fiscal years beginning after December 15, 2018. Early adoption is permitted. Management has concluded that it will not early adopt this standard and is currently evaluating the impact of this new standard on the Company’s condensed consolidated financial statements.

Adopted

Revenue Recognition— In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers” related to the recognition and reporting of revenue that establishes a comprehensive new revenue recognition model designed to depict the transfer of goods or services to a customer in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services. The guidance allows for the use of either the full or modified retrospective transition method. This new standard was effective on January 1, 2018.

6

Under the new standard, the Company used the modified retrospective method and recognizes all revenue on sales to distributors upon shipment and transfer of control (known as “sell-in” revenue recognition), rather than deferring recognition until distributor report that they have sold the product to their customers (known as “sell-through” revenue recognition).  This change in methodology will cause a shift in the timing of when revenue is recognized for this class of customers comparing to prior periods.  The Company provides some of its distributors rights that would result in a deferral of revenue under the revenue standards before the adoption. Accordingly, the Company recorded $0.1 million of deferred revenue balance to retained earnings upon adoption of this new standard on the Company’s condensed consolidated financial statements. As a result of the adoption, the Company revised its accounting policy for revenue recognition as detailed below:

Revenue Recognition (applicable for periods commencing on or after January 1, 2018):

Product revenues consist of sales to customers which are mainly comprised of end customers, their manufacturing subcontractors, and distributors. Revenue is recognized after the Company (a) identifies the contract with a customer, (b) identifies the performance obligations in the contract, (c) determines the transaction price, (d) allocates the transaction price to the performance obligations in the contract, and (e) satisfies the performance obligation when the control of products is transferred to the customer.

The Company considers the purchase orders, which in some cases are governed by master sales agreements, to be the contract with its customers.  In evaluating the existence of the contract, the Company considers various factors relative to the contract including the customer’s ability to pay amounts due under the contract.  The Company is obligated to deliver a fixed number of products to its customers, each of which is distinct, and have been separately identified to be the performance obligations. The Company generally provides an assurance warranty that its products will substantially conform to the published specifications for twelve months from the date of shipment. The Company has not provided services in addition to the standard warranty. As such, the Company does not consider activities related to such warranty, if any, to be a separate performance obligation.

In determining the transaction price, the Company considers the variability of the amount due under the contract including amounts subject to refund or adjustment when determining the net consideration to which the Company expects to be entitled within the contract.  As the Company’s standard payment terms are less than one year, the Company has elected the practical expedient under the accounting guidance and does not assess whether the contract has a significant financing component.  The Company allocates revenue to each product based on their relative standalone selling price.  Frequently, the Company receives orders for products to be delivered over multiple dates that may extend across several reporting periods. The Company invoices for each delivery upon shipment and recognizes revenues for each distinct product delivered, assuming transfer of control has occurred. As scheduled delivery dates are within one year, under the optional exemption revenues allocated to future shipments of partially completed contracts are not disclosed.

Sales to certain of end customers include limited rebates.  The Company estimates these rebates, using historical volumes of such rebates, at the time revenue is recognized. Such rebates were not significant in any of the periods presented, and the differences between the actual amount of such rebates and our estimates also were not significant.

Sales to most of our distributors are made under contracts that allow for pricing credits upon shipment to the end customer and rights of return for on hand inventory at the distributor.  Under the accounting guidance, revenue is recognized at the point of transfer of control to the distributor, which typically occurs at the point of shipment.  The Company adjusts the transaction price for any unprocessed claims and for future estimated pricing credits which is recorded in accrued liabilities on our condensed consolidated balance sheets.  The adjustments for these estimates are recorded as a reduction to revenue in the same period when the related revenue is recorded and is calculated based on an analysis of the historical actual claims received, both in aggregate and at a distributor level to the extent that it is probable that a significant future reversal of revenue will not occur.  Historically, adjustments for actual pricing credits and product returns have not been significantly differed from the amounts estimated by the Company. As of March 31, 2108, the Company has recorded an accrued liability of $0.4 million relative to the above adjustments to transaction price.

3. Balance Sheet Components

Inventories consisted of the following (in thousands):

	As of March 31,		As of December 31,
	2018		2017
Processed wafers	$	1,960	$	3,523
Work in process		6,473		10,118
Finished goods		7,723		4,828
Total inventories	$	16,156	$	18,469

7

Prepaid expenses and other current assets consisted of the following (in thousands):

	As of March 31,		As of December 31,
	2018		2017
Processed wafer prepayments	$	1,639	$	3,443
Electronic design automation tools		389		519
Other prepaid and other current assets		1,438		1,661
Total other prepaid and other current assets	$	3,466	$	5,623

Property and equipment, net consisted of the following (in thousands):

		As of March 31,			As of December 31,
	Estimated Useful Lives	2018			2017
Machinery and equipment	2-3 years	$	13,863		$	13,268
Production masks	4 years		5,401			5,401
Software and computer equipment	3 years		3,881			3,820
Leasehold improvements	Shorter of estimated life of asset or remaining lease term		539			539
Office furniture and fixtures	3 years		114			114
Total property and equipment			23,798			23,142
Less: accumulated depreciation and    amortization			(14,351	)		(13,169	)
Property and equipment, net		$	9,447		$	9,973

Depreciation and amortization of property and equipment totaled $1.2 million and $0.8 million for the three months ended March 31, 2018 and 2017, respectively.

Intangible assets, net were carried at cost, less accumulated amortization. Intangible assets were as follows (in thousands):

		As of March 31,			As of December 31,
	Estimated Useful Lives	2018			2017
IP license	7 years	$	5,416		$	5,416
Patents	10-12 years		348			348
Total intangible assets			5,764			5,764
Less: accumulated amortization			(1,410	)		(1,208	)
Intangible assets, net		$	4,354		$	4,556

Amortization of intangible assets totaled $0.2 million and $0.2 million for the three months ended March 31, 2018 and 2017, respectively, respectively.

Amortization expense related to amortizable intangibles in future periods as of March 31, 2018 is expected to be as follows (in thousands):

2018 (remaining)	$	606
2019		808
2020		808
2021		808
2022 and thereafter		1,324
Total	$	4,354

8

Accrued liabilities consisted of the following (in thousands):

	As of March 31,		As of December 31,
	2018		2017
Accrued compensation and related benefits	$	4,586	$	5,242
Customer Deposit		852		1,154
Accrued IP License		316		343
Accrued technical consulting and professional services		231		259
Accrued royalty, rebates and commission		205		287
Other accrued liabilities		1,849		1,932
Total accrued liabilities	$	8,039	$	9,217

4. Financial Instruments

The following is a summary of financial instruments (in thousands):

	As of March 31, 2018
			Gross		Gross
			Unrealized		Unrealized			Estimated Fair
	Cost		Gains		Losses			Values
Available-for sale securities
Commercial Paper	$	18,412	$	—	$	(23	)	$	18,389
Money market funds		185		—		—			185
Corporate bonds		39,749		—		(199	)		39,550
U.S. government securities		2,493		—		(5	)		2,488
Total available-for-sale securities	$	60,839	$	—	$	(227	)	$	60,612
Reported in:
Cash and cash equivalents								$	2,177
Short-term investments									58,435
Total available-for-sale securities								$	60,612

	As of December 31, 2017
			Gross		Gross
			Unrealized		Unrealized			Estimated Fair
	Cost		Gains		Losses			Values
Available-for sale securities
Commercial paper	$	13,927	$	—	$	(11	)	$	13,916
Money market funds		1,269		—		—			1,269
Corporate bonds		36,534		—		(81	)		36,453
U.S. government securities		2,489		—		(4	)		2,485
Total available-for-sale securities	$	54,219	$	—	$	(96	)	$	54,123
Reported in:
Cash and cash equivalents								$	5,761
Short-term investments									48,362
Total available-for-sale securities								$	54,123

The contractual maturities of available-for-sale securities are presented in the following table (in thousands):

	As of March 31, 2018
	Amortized Cost Basis		Estimated Fair Value
Due in one year or less	$	46,314	$	46,188
Due between one and five years		14,525		14,424
	$	60,839	$	60,612

9

Gross realized gains and gross realized losses on sales of available-for-sale securities for the three months ended March 31, 2018 were not significant.As of March 31, 2018 and December 31, 2017, there were no individual securities that had been in a continuous loss position for 12 months or longer.

5. Fair Value Measurements

The Company defines fair value as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities which are required to be recorded at fair value, the Company considers the principal or most advantageous market in which to transact and the market-based risk. The Company applies fair value accounting for all financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis. Level 1 liabilities consist of accounts payable, accrued expense and long-term debt. The carrying amounts of accounts receivable, prepaid expenses, accounts payable and accrued liabilities approximate fair value due to the short-term nature of these items. Based on the borrowing rates currently available to the Company for debt with similar terms, the carrying value of the term debt approximates fair value as well. The Company categorizes assets and liabilities recorded at fair value based upon the level of judgment associated with inputs used to measure their fair value. The categories are as follows:

Level 1—Observable inputs, such as quoted prices in active markets for identical, unrestricted assets, or liabilities.

Level 2—Quoted prices for similar assets or liabilities, or inputs other than quoted prices in active markets that are observable either directly or indirectly.

Level 3—Unobservable inputs in which there is little or no market data, which require the Company to develop its own assumptions about the assumptions market participants would use in pricing the asset or liability. Valuation techniques include use of option-pricing models, discounted cash flows models, and similar techniques.

The hierarchy requires the Company to use observable market data, when available, and to minimize the use of unobservable inputs when determining fair value. The following tables represent the Company’s financial assets and financial liabilities measured at fair value on a recurring basis categorized by the fair value hierarchy as of March 31, 2018 and December 31, 2017 (in thousands):

	As of March 31, 2018
	Level 1		Level 2		Level 3		Total
Financial asset— available-for-sales securities
Money market funds	$	185	$	—	$	—	$	185
Commercial Paper		—		18,389		—		18,389
Corporate bonds		—		39,550		—		39,550
U.S. government securities		—		2,488		—		2,488
Total financial asset—available-for-sales securities	$	185	$	60,427	$	—	$	60,612

	As of December 31, 2017
	Level 1		Level 2		Level 3		Total
Financial asset— available-for-sales securities
Money market funds	$	1,269	$	—	$	—	$	1,269
Commercial paper		—		13,916		—		13,916
Corporate bonds		—		36,453		—		36,453
U.S. government securities		—		2,485		—		2,485
Total financial asset—available-for-sales securities	$	1,269	$	52,854	$	—	$	54,123

There were no transfers within the hierarchy during the three months ended March 31, 2018 and 2017.

6. Commitments and Contingencies

Lease and purchase obligations—The Company leases office and research facilities under operating leases for its U.S. headquarters and international locations that expire at various dates through March 2024. Under any lease agreement that contains escalating rent provisions, lease expense is recorded on a straight-line basis over the lease term. Rent expense for the three months ended March 31, 2018 and 2017 was $0.3 million and $0.2 million, respectively. In addition, the Company has purchase obligations which included agreements and issued purchase orders containing non-cancelable payment terms to purchase goods and services.

10

As of March 31, 2018, future minimum operating lease payments and purchase obligations are as follows (in thousands):

					Total
	Operating		Purchase		Lease and Purchase
	Leases		Obligations		Obligations
2018 (remaining)	$	644	$	10,494	$	11,138
2019		1,488		2,289		3,777
2020		1,535		1,549		3,084
2021		2,034		—		2,034
2022 and thereafter		4,299		—		4,299
Total	$	10,000	$	14,332	$	24,332

Litigation—The Company accrues for contingencies when it believes that a loss is probable and that it can reasonably estimate the amount of any such loss and the Company has made an assessment of the probability of incurring any such losses and whether or not those losses are estimable.

Although the Company is not currently subject to any litigation, and the Company is not aware of any litigation currently threatened against it, the Company may be subject to legal proceedings, claims and litigation, including intellectual property litigation, arising in the ordinary course of business. Such matters are subject to many uncertainties and outcomes and are not predictable with assurance. The Company accrues amounts that it believes are adequate to address any liabilities related to legal proceedings and other loss contingencies that it believes will result in a probable loss that is reasonably estimable.

To the extent there is a reasonable possibility that a loss exceeding amounts already recognized may be incurred and the amount of such additional loss would be material, the Company will either disclose the estimated additional loss or state that such an estimate cannot be made. The Company does not currently believe that it is reasonably possible that losses in connection with litigation arising in the ordinary course of business would be material.

Indemnification—Under the indemnification provisions of the Company’s standard sales-related contracts, the Company agrees to defend its customers against third-party claims asserting infringement of certain intellectual property rights, which may include patents, copyrights, trademarks, or trade secrets, and to pay judgments entered on such claims. Certain agreements include indemnification provisions that could potentially expose the Company to losses in excess of the amount received under the agreement. In addition, the Company indemnifies its directors and certain of its officers while they are serving in good faith in such capacities. To date, the Company has not incurred costs to defend lawsuits or settle claims related to these indemnification agreements. As of March 31, 2018 and December 31, 2017, no liability associated with such indemnifications had been recorded.

7. Shareholder’s Equity and Share-based Compensation

The Company’s certificate of incorporation, as of March 31, 2018 and December 31, 2017, authorized the Company to issue up to 400,000,000 shares of common stock and 10,000,000 shares of preferred stock, each at $0.00001 par value per share, respectively.

As of March 31, 2018, no preferred stock was outstanding. Each share of common stock is entitled to one vote. The holders of common stock are also entitled to receive dividends out of funds legally available. No dividends have been declared to date.

2015 Equity Incentive Plan and 2004 Equity Incentive Plan

Under the Company’s 2015 Equity Incentive Plan and 2004 Equity Incentive Plan, shares of common stock were reserved for the issuance of incentive stock options (“ISO”); nonstatutory stock options (“NSO”); or the sales of restricted common stock to employees, officers, directors, and consultants of the Company. The exercise price of an option is determined by the board of directors when the option is granted and may not be less than 85% of the fair market value of the shares on the date of grant, provided that the exercise price of an ISO is not less than 100% of the fair market value of the shares on the date of grant and the exercise price of any option granted to a 10% stockholder is not less than 110% of the fair market value of the shares on the date of grant. ISOs granted under the Plan generally vest 25% after the completion of 12 months of service and the balance in equal monthly installments over the next 36 months of service and expire 10 years from the grant date. NSOs vest as per the specific agreement and expire 10 years from the date of grant. The Plan allows for early exercise of options prior to full vesting as determined by the board of directors and set forth in the stock option agreements governing such options. Exercises of unvested options are subject to repurchase by the Company at not less than the original exercise price upon termination of employment.

11

2017 Equity Incentive Plan

In November 2017, the Company adopted the 2017 Equity Incentive Plan, or 2017 Plan, and all shares reserved for grant under the 2015 Equity Incentive Plan and 2004 Equity Incentive Plan were cancelled. The 2017 Plan had 1,618,735 common shares reserved, plus any shares subject to outstanding stock options or other stock awards that were granted under the 2015 Equity Incentive Plan and 2004 Equity Incentive Plan that were forfeited, terminate, expire or are otherwise not issued. In addition, the shares reserved under the 2017 Plan will automatically increase on the first day of each calendar year, beginning on January 1, 2018 and ending on January 1, 2027, by an amount equal to 5% of the total number of shares of the Company’s capital stock outstanding on the last day of the calendar month before the date of the automatic increase, or a lesser number of shares determined by the board ofdirectors prior to the date of such automatic increase. The 2017 Plan provides for the grant of common stock awards, including incentive stock options, non-statutory stock options, stock appreciation rights, restricted stock and restricted stock units, performance units and performance shares to employees, directors, and consultants of the Company. All granted shares that are canceled, forfeited or expired are returned to the 2017 Plan and are available for grant in conjunction with the issuance of new equity awards. Stock options may be granted at an exercise price per share not less than 100% of the fair market value at the date of grant. If a stock option is granted to a 10% stockholder, then the exercise price per share must not be less than 110% of the fair market value per share of common stock on the grant date. Options granted are exercisable over a maximum term of 10 years from the date of grant and generally vest over a period of four years. As of March 31, 2018, 1,698,413 shares are available for grant.

8. Common Stock

Stock Options

Activity under the Company’s stock option plan is set forth below:

						Weighted-
				Weighted		Average
				Average		Remaining		Aggregate
				Exercise		Contractual		Intrinsic Value
	Number of Shares			Price		Term (Years)		(in thousands)
Balance—December 31, 2016		2,906,596		$	3.20		8.1	$	4,941
Granted		1,320,382		$	7.08
Exercised		(388,621	)	$	3.28
Canceled		(104,813	)	$	4.53
Balance—December 31, 2017		3,733,544		$	4.53		7.9	$	25,386
Granted		—		$	—
Exercised		(3,466	)	$	3.68
Canceled		(92,830	)	$	5.64
Balance—March 31, 2018		3,637,248		$	4.47		7.3	$	1,899
Vested and exercisable—March 31, 2018		1,852,907		$	3.10		6.0	$	23,353
Vested and exercisable—December 31, 2017		1,648,917		$	2.89		6.7	$	13,924

As of March 31, 2018, approximately $4.6 million of unrecognized stock compensation costs related to awards were expected to be recognized over a weighted-average period of 2.6 years. As of December 31, 2017, approximately $4.8 million of unrecognized stock compensation costs related to awards were expected to be recognized over a weighted-average period of 3.1 years.

The aggregate intrinsic value of options exercised during the three months ended March 31, 2018 was $0.1 million. The aggregate intrinsic value of options exercised during the year ended December 31, 2017 was $1.6 million.

There were no options granted during the three months ended March 31, 2018. The weighted-average grant-date fair value of options granted during the year ended December 31, 2017 was $2.94 per share.

The calculated fair value of option grants was estimated using the Black-Scholes model with the following assumptions for which options were granted:

	Three Months Ended
	March 31,
	2018	2017
Risk-free interest rate	—	1.97% - 2.40%
Expected term	—	6.1 - 9.6 yrs
Expected dividends	—	0%
Volatility	—	30%

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Restricted Stock Unit Awards

The Company grants restricted stock units (RSU) to employees under the 2017 Plan. RSUs granted typically vest ratably over a four-year period and are converted into shares of the Company’s common stock upon vesting on a one-for-one basis subject to the employee’s continued service to the Company over that period. The fair value of RSUs is determined using the fair value of the Company’s common stock on the date of the grant, reduced by the discounted present value of dividends expected to be declared before the awards vest. Compensation expense is recognized on a straight-line basis over the requisite service period of each grant. Each RSU award granted from the 2017 Plan will reduce the number of shares available for issuance under the 2017 Plan by one share.

For the three months ended March 31, 2018, unamortized compensation expense related to RSU was approximately $1.9 million, to be recognized over 2.5 years. For the year ended December 31, 2017, unamortized compensation expense related to RSU was approximately $0.4 million, to be recognized over 1.8 years.  

Activity under the Company’s RSU is set forth below:

	Number of Shares
Balance—December 31, 2017		35,029
Granted		102,500
Released		—
Canceled		—
Balance—March 31, 2018		137,529

Employee Stock Purchase Plan

Concurrent with the completion of the IPO in November 2017, the Company adopted the 2017 Employee Stock Purchase Plan, or ESPP. The ESPP authorizes the issuance of 647,494 shares of common stock outstanding under purchase rights granted to its employees. In addition, the shares reserved under the ESPP Plan will automatically increase on the first day of each calendar year, beginning on January 1, 2018 and ending on January 1, 2027, by the lesser of (i) an amount equal to 2% of the total number of shares of the Company’s capital stock outstanding on the last day of the calendar month before the date of the automatic increase, (ii) 1,000,000 shares of common stock, and (iii) a lesser number of shares determined by the board of directors prior to the date of such automatic increase. The ESPP allows eligible employees to purchase shares of the Company’s common stock at a discount through payroll deductions of up to 15% of their eligible compensation, subject to any plan limitations. The ESPP generally provides for offering periods and purchase periods every six months, and at the end of each purchase period, employees are able to purchase shares at 85% of the lower of the fair market value of the Company’s common stock on the first trading day of the purchase period or on the last trading day of the offering period. Since the ESPP was established in November 2017, no shares were issued as of December 31, 2017. Shares expected to be issued under the ESPP were 226,000 for the offering period as of December 31, 2017. The calculated fair value of the shares under the ESPP was estimated using the Black-Scholes model with the following assumptions: risk-free interest rate of 1.31%, expected term of 0.5 year, expected dividends of 0% and volatility of 22%. For the three months ended March 31, 2018, unamortized compensation expense related to ESPP was approximately $0.1 million, to be recognized over approximately two months.  For the year ended December 31, 2017, unamortized compensation expense related to ESPP was approximately $0.5 million, to be recognized over approximately five months.  

The Company uses the straight-line vesting attribution method to record stock-based compensation expense. Stock-based compensation expense recognized in the consolidated statements of operations and comprehensive loss for options, restricted stock units and ESPP was as follows (in thousands):

	Three Months Ended
	March 31,
	2018		2017
Cost of revenue	$	25	$	7
Research and development	573		132
Sales and marketing	111		27
General and administrative	269		76
Total	$	978	$	242

No income tax benefit associated with stock-based compensation expense was recognized in the condensed consolidated statements of operations and comprehensive loss for the three months ended March 31, 2018 and 2017.

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9. Income Taxes

The Company recorded an income tax benefit of $0.1million and provision of $0.2 million for the three months ended March 31, 2018 and 2017, respectively. The income tax benefit for the three months ended March 31, 2018 consisted primarily of a credit to foreign jurisdiction.

As of March 31, 2018, based on the available objective evidence, management believes it is more likely than not that the net deferred tax assets will not be realized for federal and state purposes. Accordingly, management has applied a full valuation allowance against its federal and state net deferred tax assets as of March 31, 2018. A release of such valuation allowance could cause a material increase to income in the period such determination is made.

Internal Revenue Code Section 382 and similar California rules place a limitation on the amount of taxable income that can be offset by NOL carryforwards after a change in control (generally greater than 50% change in ownership). Generally, after a control change, a corporation cannot deduct NOL carryforwards in excess of the Section 382 limitations. Due to these provisions, utilization of NOL and tax credit carryforwards may be subject to annual limitations regarding their utilization against taxable income in future periods. The Company completed Section 382 analysis in 2016 and determined ownership changes occurred in July 2005, November 2009 and August 2017, which resulted in reductions to the U.S. federal and California net operating losses of $34.9 million and $24.1 million, respectively, and U.S. federal research and development credits by $1.8 million. Since no deferred tax assets have been recognized on our balance sheet related to our NOLs and tax credits, as they are fully reserved by a valuation allowance, there was no impact to the tax provision.

On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Act”). The Act makes broad and complex changes to the U.S. tax code including, but not limited to: (1) reducing the U.S. federal corporate tax rate from 35 percent to 21 percent; (2) requiring companies to pay a one-time transition tax on certain unrepatriated earnings of foreign subsidiaries; (3) generally eliminating U.S. federal income taxes on dividends from foreign subsidiaries; (4) requiring current inclusion in U.S. federal taxable income of certain earnings of controlled foreign corporations; (5) eliminating the corporate alternative minimum tax, or AMT, and changing how existing AMT credits can be realized; (6) creating the base erosion anti-abuse tax, or BEAT, a new minimum tax; (7) creating a new limitation on deductible interest expense; and (8) changing rules related to uses and limitations of net operating loss carryforwards created in tax years beginning after December 31, 2017.

As of December 31, 2017, the Company’s remeasured certain deferred tax assets and liabilities based on rates at which they are expected to reverse in the future, which is generally 21%. The rate reduction would generally take effect on January 1, 2018. Consequently, any changes in the U.S. corporate income tax rate will impact the carrying value of the deferred tax assets. Under the new corporate income tax rate of 21%, U.S. federal and state deferred tax assets decreased by approximately $15.7 million as of December 31, 2017 and the valuation allowance decreased by approximately the same amount.  Due to the valuation allowance on the deferred tax assets, the provisional amount recorded related to the remeasurement was zero.

As of December 31, 2017, the Company's foreign subsidiaries are in a cumulative deficit. Therefore, the one-time transition tax on deemed repatriation of previously untaxed accumulated earnings and profits of foreign subsidiaries has minimal impact on the Company. Undistributed earnings of foreign subsidiaries are determined to be reinvested indefinitely. Accounting for the transition tax and the conclusion on the Company’s indefinite reinvestment have been completed pursuant to the requirements of the Act.

The SEC staff issued Staff Accountant Bulletin No. 118, or SAB 118, which provides guidance on accounting for the tax effects of the Act. SAB 118 provides a measurement period that should not extend beyond one year from the Act enactment date for companies to complete the accounting under ASC 740. In accordance with SAB 118, a company must reflect the income tax effects of those aspects of the Act for which the accounting under ASC 740 is complete. To the extent that a company’s accounting for certain income tax effects of the Act is incomplete but it is able to determine a reasonable estimate, it must record a provisional estimate in the financial statements. If a company cannot determine a provisional estimate to be included in the financial statements, it should continue to apply ASC 740 on the basis of the provisions of the tax laws that were in effect immediately before the enactment of the Act. As noted above, the Company has recorded a provisional amount associated with the deferred tax assets and related valuation allowance as of March 31, 2018.  At March 31, 2018, the Company is still analyzing certain aspects of the Act including (a) provisions for Global Intangible Low-Taxed Income, or GILTI, wherein taxes on foreign income are imposed in excess of a deemed return on tangible assets of foreign corporations (including related accounting policy elections) and (b) state tax implications of the Act.

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10. Net Loss Per Share

The following table summarizes the computation of basic and diluted net loss per share (in thousands, except per share data):

	Three Month Ended
	March 31,
	2018			2017
Net loss	$	(1,368	)	$	(2,025	)
Weighted-average common shares outstanding		33,494,807			4,476,525
Less: Shares subject to repurchase		—			—
Weighted-average shares outstanding		33,494,807			4,476,525
Net loss per share, basic and diluted	$	(0.04	)	$	(0.45	)

Basic net loss per share is computed by dividing the net loss by the weighted-average number of common shares outstanding for the period. Basic and diluted net loss per share is presented in conformity with the two-class method required for participating securities. Prior to the IPO, the holders of the Company’s convertible preferred stock were entitled to receive non-cumulative dividends, payable prior and in preference to any dividends on shares of the common stock. Any additional dividends would be distributed among the holders of convertible preferred stock and common stock pro rata, assuming the conversion of all convertible preferred stock into common stock. After to the IPO, all convertible preferred stocks were converted to common stock and the Company has one class of stock issued and outstanding.

The following potentially dilutive securities outstanding have been excluded from the computation of diluted weighted-average shares outstanding because such securities have an antidilutive impact due to losses reported (in common stock equivalent shares):

	As of		As of
	March 31,		December 31,
	2018		2017
Stock options to purchase common stock		3,637,248		3,733,544
Common stock warrants		498,419		584,148
Total		4,135,667		4,317,692

11. Segment Reporting

The Company operates in one reportable segment related to the design, development and sale of network communication integrated circuits. The Company’s chief operating decision-maker (“CODM”) is its Chief Executive Officer, who reviews operating results on an aggregate basis and manages the Company’s operations as a whole for the purpose of evaluating financial performance and allocating resources. Substantially all of the Company’s long-lived assets were attributable to operations in the United States as of March 31, 2018 and December 31, 2017.

The following table summarizes revenue by market (in thousands):

	Three Months Ended
	March 31,
	2018		2017
Revenue by market:
Data Center	$	16,269	$	15,755
Enterprise Infrastructure		9,511		7,555
Access		2,531		333
Automotive		47		—
Total revenue	$	28,358	$	23,643

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The Company sells its products worldwide and attributes revenue to the geography where the product is shipped. The geographical distribution of revenue as a percentage of total revenue for the periods indicated was as follows:

	Three Months Ended
	March 31,
	2018			2017
Malaysia		62	%		64	%
China		22			26
United States		1			1
Other		15			9
Total		100	%		100	%

12. Concentrations

Credit—Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. The Company’s cash equivalents consist of cash and money market accounts with a financial institution that management believes to be of high-credit quality; however, at times, balances exceed federally insured limits. Amounts held on deposit at financial institutions in excess of Federal Deposit Insurance Corporation-insured amounts were $0.4 million and $0.9 million as of March 31, 2018 and December 31, 2017, respectively.

Significant Customers—Credit risk with respect to accounts receivable is concentrated with two large customers that contribute a majority of the Company’s business and is mitigated by a relatively short collection period. Collateral is not required for accounts receivable. The fair value of accounts receivable approximates their carrying value. Revenue and accounts receivable concentrated with significant customers and their manufacturing subcontractors as a percentage of accounts receivable and total revenue were as follows:

	As of			As of
	March 31,			December 31,
	2018			2017
Accounts Receivable:
Customer A		36	%		49	%
Customer B	49			34

	Three Months Ended
	March 31,
	2018			2017
Revenue:
Customer A		55	%		63	%
Customer B	28			26

13. Employee Benefit Plan

The Company has established a 401(k) plan, which permits participants to make contributions by salary deduction pursuant to Section 401(k) of the Internal Revenue Code. The Company may, at its discretion, make matching contributions to the 401(k) Plan. The Company has made no contributions to the 401(k) Plan since its inception.

14. Related Party Transaction

In 2016, the Company entered into an agreement with a significant stockholder to license certain technology intended to be incorporated into the Company’s products under development. Under this agreement, the Company agreed to pay an initial $2.0 million licensing fee and additional licensing fees at a later point of the development program upon the achievement of certain development milestones. In addition, royalties may be due on products sold utilizing the licensed technology. From time to time, the Company also purchases tooling, mask sets, wafers and services from this stockholder in its ordinary course of business. The Company recorded $2.8 million and $3.6 million to research and development expenses, inventory and cost of revenue for the three months ended March 31, 2018 and 2017 respectively, in relation to tooling, mask sets, wafers and services. As of March 31, 2018, the total balance due this stockholder was $4.0 million, which was included in accrued, accounts payable and other long-term liabilities.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

This Quarterly Report on Form 10-Q contains forward-looking statements, including statements based upon or relating to our expectations, estimates, and projections, which are subject to the safe harbor provisions created by the Private Securities Litigation Reform Act of 1995. Forward-looking statements generally relate to future events or our future financial or operating performance. In some cases, you can identify forward-looking statements because they contain words such as “anticipates,” “believes,” “contemplates,” “continue,” “could,” “estimates,” “expects,” “intends,” “may,” “plans,” “potential,” “predicts,” “projects,” “should,” “target,” or “will” or the negative of these words or other similar terms or expressions that concern our expectations, strategy, plans or intentions. These statements are not guarantees of future performance; they reflect our current views with respect to future events and are based on assumptions and are subject to known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from expectations or results projected or implied by forward-looking statements.

We discuss many of these risks in Part II of this Quarterly Report on Form 10-Q in greater detail under the heading “Risk Factors” and in other filings we make from time to time with the SEC. Also, these forward-looking statements represent our estimates and assumptions only as of the date of this Quarterly Report on Form 10-Q. Unless required by federal securities laws, we assume no obligation to update any of these forward-looking statements, or to update the reasons actual results could differ materially from those anticipated, to reflect circumstances or events that occur after the statements are made. Given these uncertainties, readers should not place undue reliance on these forward-looking statements.

The following discussion should be read in conjunction with (1) our condensed consolidated financial statements and the related notes included elsewhere in this Quarterly Report on Form 10-Q and (2) our audited consolidated financial statements and the related notes and management’s discussion and analysis of financial condition and results of operations for the fiscal year ended December 31, 2017 included in our Annual Report filed on Form 10-K and filed with the SEC on March 7, 2018, or the 2017 Annual Report. Unless otherwise indicated, all references in this Form 10-Q to Aquantia, we, us, our, and the Company refer to Aquantia Corp. and its subsidiaries.

Overview

We are a leader in the design, development and marketing of advanced high-speed communications integrated circuits, or ICs, for Ethernet connectivity in the data center, enterprise infrastructure and access markets. Our Ethernet solutions provide a critical interface between the high-speed analog signals transported over wired infrastructure and the digital information used in computing and networking equipment. Our products are designed to cost-effectively deliver leading-edge data speeds for use in the latest generation of communications infrastructure to alleviate network bandwidth bottlenecks caused by the exponential growth of global Internet Protocol, or IP, traffic. Many of our semiconductor solutions have established benchmarks in the industry in terms of performance, power consumption and density. Our innovative solutions enable our customers to differentiate their product offerings, position themselves to gain market share and drive the ongoing equipment infrastructure upgrade cycles in the data center, enterprise infrastructure and access markets.

We are a fabless semiconductor company. We have shipped more than 10 million ports to customers across three semiconductor process generations, and are currently in mass production in 28nm process node. 28nm and other silicon process geometries, such as 40nm and 90nm, refer to the size of the process node in nanometers for a particular semiconductor manufacturing process.

We derive revenue from our products, which include our 10GBASE-T physical layer devices, or PHYs, custom ASICs for Intel and our recently developed AQrate product line. We currently generate revenue from the sale of our products directly to IC suppliers, original equipment manufacturers, or OEMs, and original design manufacturers, or ODMs. We market and sell our products through our direct sales force.

We shipped our first products in 2009. Historically, a significant portion of our revenue has been generated from our largest customer, Intel, including sales to contract manufacturers or ODMs at the direction of this customer in the data center market. For the year ended December 31, 2017, Intel accounted for 60% and Cisco accounted for 28% of our revenue. For the three months ended March 31, 2018, Intel accounted for 55% and Cisco accounted for 28% of our revenue. To continue to grow our revenue, it is important that we acquire new customers and sell additional products to our existing customers.

While we intend to expand our customer base over time, the markets we serve tend to be highly concentrated, and we expect that a large portion of our revenue will continue to be derived from a relatively small number of customers for the foreseeable future.

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Key Factors Affecting Our Performance

Pricing and Product Cost. Our pricing and margins depend on the volumes and the features of the ICs we provide to our customers. We believe the primary driver of gross margin is the average selling prices, or ASPs, negotiated between us and our customers relative to volume, material costs and manufacturing yield. Typically, our selling prices are contractually set for multiple quarters and our prototype selling prices are higher than our selling prices at volume production. In certain cases, we have agreed in advance to modest price reductions, generally over a period of time ranging from 18 months to five years, once the specified product begins to ship in volume. However, our customers may change their purchase orders and demand forecasts at any time with limited notice, which can sometimes lead to price renegotiations. Although these price renegotiations can sometimes result in ASPs of our products fluctuating over the shorter term, we expect ASPs generally to decline over the longer term as our products mature. These declines often coincide with improvements in manufacturing yields and lower wafer, assembly and testing costs, which offset some or all of the margin reduction that results from lower ASPs. Since we rely on third-party wafer foundries and assembly and test contractors to manufacture, assemble and test our ICs, we maintain a close relationship with our suppliers to improve quality, increase yields and lower manufacturing costs. In addition, our customers may seek to renegotiate product pricing under the contracts or purchase orders we have with them based on volume or other factors, which could drive fluctuations in ASPs.

Design Wins with New and Existing Customers. Our existing and prospective customers tend to be multinational enterprises with large annual purchases of ICs that are continuously developing new products for existing and new application areas. Our solutions enable our customers to differentiate their product offerings and position themselves to gain market share and drive the next upgrade cycles in data center and enterprise infrastructure. We have programs in place to help our existing customers use our solutions throughout their product portfolio, and we work closely with our existing and prospective customers to understand their product roadmaps and strategies. Because of our extended sales cycle, our revenue in future years is highly dependent on design wins we are awarded today. Further, because we expect our revenue relating to our mature products to decline in the future, we consider design wins critical to our future success and anticipate being increasingly dependent on revenue from newer design wins for our newer products.

Customer Demand and Product Life Cycles. Once customers design our ICs into their products, we closely monitor all phases of the product life cycle, including the initial design phase, prototype production, volume production and inventories. For example, during the periods presented, we had several products progressing through their product life cycles. In the data center market, the majority of our revenue for the periods presented was derived from our 10GBASE-T custom ASIC product, which we refer to as Twinville. In late 2015, we introduced and began to record revenue from our Sageville and Coppervale products. We anticipate that our Twinville product will transition to these two newer ASIC products over time, although the timing and rate of such transition will depend on our customers’ adoption of these products and the demand for our customers’ products. In the enterprise infrastructure market, during the periods presented, we developed our 5GBASE-T and 2.5GBASE-T AQrate product. We first shipped our AQrate products into the enterprise infrastructure market in the fourth quarter of 2014. We began shipping AQrate products in volume in 2015 and 2016. We also started to ship our multiple lines of products into the access market in the fourth quarter of 2016. We expect the revenue from our AQrate products, and therefore the percentage of our total revenue attributable to the enterprise infrastructure and access markets, to increase from the current levels.

We also carefully monitor changes in customer demand and end-market demand, including seasonality, cyclicality and the competitive landscape. Our customers share their development schedules with us, including the projected launch dates of their product offerings. Once our customers are in production, they generally will provide nine to 12-month forecasts of expected demand, which gives us an indication of future demand. However, our customers may change their purchase orders and demand forecasts at any time with limited notice. In light of our significant customer concentration, our revenue is likely to be materially and disproportionally, due in part to fluctuating end-market demand, impacted by the purchasing decisions of our largest customers.

Seasonality

Our revenue is subject to some seasonal variation as we begin to serve many markets and end-markets which historically experience lower sales in the first quarter of the year which may result in slower growth and lower sales as compared to other quarters.

Components of Results of Operations

Revenue

We generate revenue from the sale of our products. We sell our products direct to our customers and to our customers’ manufacturing subcontractors, and do not currently have a material amount of revenue sold to distributors during the sales process. We offer a limited number of customer rebates and accrue an estimate of such rebates at the time revenue is recognized. Such rebates were not material in any of the periods presented, and the differences between the actual amount of such rebates and our estimates also were not material. Revenue is recognized when control of the promised goods is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods. Control of the goods is considered to have occurred when title and risk of loss have passed to the customer. With respect to collectability, we perform credit checks for new customers and perform ongoing evaluations of our existing customers’ financial condition. We defer revenue if any revenue recognition criteria have not been met.

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Our success and future revenue depend on our ability to achieve design wins and to convince our current and prospective customers to design our products into their product offerings. In addition, our revenue may fluctuate as a result of a variety of factors including customer demand and product life cycles, product cost and product mix sold during the period.

We anticipate that our revenue will fluctuate based on a variety of factors including the amount and timing of customer and end-market demand, product life cycles, average selling price which declines as our product reaches maturity, production schedule, and product mix sold during the period. In addition, we may introduce new products at lower average selling price than our existing products with the intent of increasing the market demand for our products, which may cause a fluctuation in our revenues during the period in which these new products are introduced.

Cost of Revenue

Cost of revenue consists of costs of materials, primarily wafers processed by third-party foundries, costs associated with packaging, assembly and testing paid to our third-party contract manufacturers, and personnel and other costs associated with our manufacturing operations. Our cost of revenue also includes allocation of overhead and facility costs, depreciation of production equipment, inventory write-downs and amortization of production mask costs. As we introduce new products, the cost of revenue will fluctuate depending on yield, volume and production cost of these products.

Gross Margin

Gross margin, or gross profit as a percentage of revenue, has been, and will continue to be, affected by a variety of factors, including product mix, ASPs, material costs, production costs that are themselves dependent upon improvements to yield, production efficiencies, elimination or addition to production processes as required by our end customers and timing of such improvements, and increasing manufacturing overhead to support the greater number of products and markets we serve.

We expect our gross margin to fluctuate on a quarterly basis as a result of changes in ASPs due to new product introductions, existing product transitions to high-volume manufacturing, product maturation and fluctuations in manufacturing costs.

Operating Expenses

Our operating expenses consist of research and development, sales and marketing and general and administrative expenses, and a collaboration and development charge. Personnel costs are the most significant component of our operating expenses and consist of salaries, benefits, bonuses, stock-based compensation and commissions. Our operating expenses also include allocated costs of facilities, information technology, depreciation and amortization. Although our operating expenses may fluctuate, we expect our overall operating expenses to increase in absolute dollars over time.

• Research and Development. Our research and development expenses consist primarily of personnel costs, pre-production engineering mask costs, software license and intellectual property expenses, design tools and prototype-related expenses, facility costs, supplies and depreciation expense. We expense research and development costs as incurred. In addition, we enter into development agreements with some of our customers that provide fees that partially offset development costs. Such fees are recognized upon completion of the contract deliverables or milestones, and acceptance by the customer if required. We believe that continued investment in our products and services is important for our future growth and acquisition of new customers and, as a result, we expect our research and development expenses to continue to increase on an absolute basis.

• Sales and Marketing. Sales and marketing expenses consist of personnel costs, field application engineering support, travel costs, professional and consulting fees and allocated overhead costs. We expect sales and marketing expense to increase in absolute dollars as we increase our sales and marketing personnel and grow our international operations.

• General and Administrative. General and administrative expenses consist of personnel costs, professional and consulting fees, legal and allocated overhead costs. We expect general and administrative expense to increase in absolute dollars as we grow our operations and incur additional expenses associated with operating as a public company.

Other Income (Expense)

Other income (expense) consists primarily of interest expense on our previously outstanding debt, change in fair value of convertible preferred stock warrant liability and foreign exchange gains and losses. See Note 7 to our condensed consolidated financial statements for more information about our debt and the repayment of such debt.

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Prior to the completion of our IPO, convertible preferred stock warrants were classified as liabilities on our condensed consolidated balance sheets and remeasured to fair value at each balance sheet date with the corresponding change recorded as other income (expense). Upon the exercise of the warrants, the liability was reclassified to convertible preferred stock at their then fair value. In November 2017, upon the completion of the IPO, the warrants were converted into warrants to purchase shares of common stock and the liability was reclassified to stockholders’ equity (deficit) at their then fair value and will no longer be subject to fair value accounting.

Income Tax Expense

Income tax expense consists primarily of state income taxes and income taxes in certain foreign jurisdictions in which we conduct business. We have a full valuation allowance for deferred tax assets as the realization of the full amount of our deferred tax assets is uncertain, including net operating loss, or NOL, carryforwards, and tax credits related primarily to research and development. We expect to maintain this full valuation allowance until realization of the deferred tax assets becomes more likely than not.

Results of Operations

The following table summarizes our results of operations for the periods presented. The period-to-period comparison of results is not necessarily indicative of results to be expected for future periods.

	Three Months Ended
	March 31,
	2018			2017
Consolidated Statements of Operations Data:	(in thousands)
Revenue	$	28,358		$	23,643
Cost of revenue		12,241			10,047
Gross profit		16,117			13,596
Operating expenses:
Research and development		12,574			10,407
Sales and marketing		2,287			1,634
General and administrative		2,997			2,227
Total operating expenses		17,858			14,268
Loss from operations		(1,741	)		(672	)
Other income (expense):
Interest expense		—			(559	)
Change in fair value of convertible preferred stock warrant liability		—			(660	)
Other income, net		248			17
Total other income (expense)		248			(1,202	)
Loss before income tax expense		(1,493	)		(1,874	)
Provision for (benefit from) income taxes		(125	)		151
Net loss	$	(1,368	)	$	(2,025	)

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The following table summarizes our results of operations as a percentage of revenue for each of the periods indicated:

	Three Months Ended
	March 31,
	2018				2017
Consolidated Statements of Operations Data:
Revenue		100		%		100		%
Cost of revenue		43				42
Gross profit		57				58
Operating expenses:
Research and development		44				44
Sales and marketing		8				7
General and administrative		11				10
Total operating expenses		63				61
Loss from operations		(6	)			(3	)
Other income (expense):
Interest expense		—				(2	)
Change in fair value of convertible preferred stock warrant liability		—				(3	)
Other income, net		1				—
Total other income (expense)		1				(5	)
Loss before income tax expense		(5	)			(8	)
Provision for (benefit from) income taxes		—				1
Net loss		(5	)	%		(9	)	%

Comparison of the Three Months Ended March 31, 2018 and 2017

Revenue

	Three Months Ended
	March 31,
	2018		2017		Change		% Change
	(dollars in thousands)
Revenue by market
Data center	$	16,269	$	15,755	$	514		3	%
Enterprise infrastructure		9,511		7,555		1,956		26
Access		2,531		333		2,198		660
Automotive		47		—		47	*
Total Revenue	$	28,358	$	23,643	$	4,715		20

* Percentage change not meaningful

Revenue increased by $4.7 million, or 20%, for the three months ended March 31, 2018 compared to the corresponding period in 2017, primarily due to higher product sales volume across all markets which accounted for $5.5 million increase, offset by lower ASP for product mix sold into the data center market.  

Cost of Revenue, Gross Profit and Gross Margin

	Three Months Ended
	March 31,
	2018			2017			Change		% Change
	(dollars in thousands)
Cost of revenue	$	12,241		$	10,047		$	2,194		22		%
Gross Profit	$	16,117		$	13,596		$	2,521		19		%
Gross Margin		57	%		58	%				(1	)	pts

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Cost of revenue increased by $2.2 million, or 22%, for the three months ended March 31, 2018 compared to the corresponding period in 2017, primarily due to costs on higher product sales of $2.1 million, offset by yield improvements for products sold in the data center market.

Gross profit increased by $2.5 million, or 19%, for the three months ended March 31, 2018 compared to the corresponding period in 2017. Gross margin decreased by 1 percentage point for the three months ended March 31, 2018 compared to the corresponding period in 2017 mainly due to overall lower ASP for products sold to the data center market.

Operating Expenses

	Three Months Ended
	March 31,
	2018		2017		Change		% Change
	(dollars in thousands)
Operating expenses:
Research and development	$	12,574	$	10,407	$	2,167		21	%
Sales and marketing		2,287		1,634		653		40
General and administrative		2,997		2,227		770		35
Total operating expenses	$	17,858	$	14,268	$	3,590		25

Research and development expenses increased by $2.2 million, or 21%, for the three months ended March 31, 2018 compared to the corresponding period in 2017, primarily due to increase in personnel-related costs of $0.8 million as we continued to expand our research and development headcount, increase in stock-based compensation expense of $0.4 million, increase in design tools and prototype-related expenses of $0.3 million, increase in consulting and design fees of $0.2 million, and higher depreciation and amortization related to lab equipment and licenses of $0.2 million.

Sales and marketing expenses increased by $0.7 million, or 40%, for the three months ended March 31, 2018 compared to the corresponding period in 2017, primarily due to an increase in personnel-related costs of $0.3 million, increase in consulting fees related to product marketing of $0.2 million and increase in stock-based compensation of $0.1 million.

General and administrative expenses increased by $0.8 million, or 35%, for the three months ended March 31, 2018 compared to the corresponding period in 2017, primarily due to increase in consulting, legal and audit fees incurred in connection with preparing to operate as a public company of $0.2 million, increase in stock-based compensation of $0.2 million, increase in insurance and facility costs of $0.2 million and increase in depreciation expense related to our new ERP system of $0.1 million.

Other Income (Expense)

	Three Months Ended
	March 31,
	2018		2017			Change		% Change
	(dollars in thousands)
Other income (expense):
Interest expense	$	—	$	(559	)	$	559	*	%
Change in fair value of
convertible preferred stock    warrant liability		—		(660	)		660	*
Other income, net		248		(6	)		254	*
Total other income (expense):	$	248	$	(1,225	)	$	1,473	*

* Percentage change not meaningful

Total other income (expense), net for the three months ended March 31, 2018 increased by $1.5 million compared to the corresponding period in 2017, primarily due to no interest expense as the principal of the debt was repaid in December 2017 and $0.7 million in non-cash expense resulted in decrease in the fair value of the convertible preferred stock warrant liability which converted to common stock warrants upon the completion of the IPO in November 2017, offset by investment income of $0.2 million.

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The convertible preferred stock warrant liability was reclassified to stockholders’ equity (deficit) upon the completion of our IPO and was no longer subject to fair value accounting.

Income Tax Expense

	Three Months Ended
	March 31,
	2018			2017		Change			% Change
	(dollars in thousands)
Provision for (benefit from) Income    taxes	$	(125	)	$	151	$	(276	)	*	%

* Percentage change not meaningful

Income tax expense decreased by $0.3 million for the three months ended March 31, 2018 compared to the corresponding period in 2017, primarily due to a research credit benefit from a foreign tax jurisdiction, offset by higher income tax related to our foreign subsidiaries.

Liquidity and Capital Resources

As of March 31, 2018, we had cash, cash equivalents and short-term investments of $63.0 million. We believe that our existing cash and cash equivalents and short-term investments, our expected cash flows from product sales, and funds available for borrowing under our credit facilities will be sufficient to meet our cash needs for at least the next 12 months. Over the longer term, our future capital requirements will depend on many factors, including our growth rate, the timing and extent of our sales and marketing and research and development expenditures, and the continuing market acceptance of our solutions.

Cash Flows

The following table summarizes our cash flows for the periods indicated:

	Three Months Ended
	March 31,
	2018			2017
	(in thousands)
Net cash provided by (used in) operating activities	$	7,803		$	(5,346	)
Net cash used in investing activities		(10,935	)		(905	)
Net cash used in financing activities		(302	)		(2,433	)
Net decrease in cash and cash equivalents	$	(3,434	)	$	(8,684	)

Operating Activities

We have historically used cash in operating activities due to our net losses, adjusted for changes in our operating assets and liabilities, particularly from accounts receivable, inventories, prepaid expenses and other assets, accounts payable and accrued expenses, deferred revenue and non-cash expense items such as depreciation and amortization, stock-based compensation expense, and prior to November 2017, issuance of convertible preferred stock warrants and the change in fair value of our convertible preferred stock warrant liability and amortization of our debt discount.

For the three months ended March 31, 2018, cash provided by operating activities was approximately $7.8 million. The cash from operating activities was primarily from the decrease in accounts receivable of $4.6 million and inventory of $2.3 million offset by a decrease in accounts payable and accrued liabilities of $2.1 million.  

For the three months ended March 31, 2017, cash used in operating activities was approximately $5.3 million. The cash used in operating activities was primarily due to $5.4 million in net change in operating assets and liabilities, a net loss of $2.0 million, offset by non-cash expenses of $2.1 million.

Investing Activities

Our investing activities consist of capital expenditures for property and equipment purchases and IP licenses. Our capital expenditures for property and equipment have primarily been for general business purposes, including machinery and equipment, leasehold improvements, software and computer equipment used internally, and production masks to manufacture our products.

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For the three months ended March 31, 2018, we used approximately $10.9 million in investing activities primarily for purchases of short-term investments net of sales and maturity of $10.2 million and for purchases of lab equipment, software and production equipment for general business purposes.

For the three months ended March 31, 2017, we used approximately $0.9 million in investing activities for the purchase of an ERP system and other property and equipment for general business purposes.

Financing Activities

Cash generated by financing activities includes proceeds from borrowings under our credit facilities, proceeds from our issuance of common stock following employee stock option exercises and issuance of convertible preferred stock. Cash used in financing activities includes repayment of debt under our credit facilities and payment of costs related to our IPO.

For the three months ended March 31, 2018, we used $0.3 million of cash in financing activities consisting primarily of costs related to our IPO.

For the three months ended March 31, 2017, we used $2.4 million of cash in financing activities, consisting of $2.5 million used in repayments of our borrowings and payments of $0.1 million on costs related to this offering, partially offset by $0.2 million in proceeds from the exercise of employee stock options.

Contractual Obligations and Commitments

There have been no material changes outside the ordinary course of our business to the contractual obligations during the three months ended March 31, 2018, as compared to those disclosed in the 2017 Annual Report on Form 10-K. See Notes 6 to our condensed consolidated financial statements for more information.

Off-Balance Sheet Arrangements

As of March 31, 2018, we had no material off-balance sheet arrangements, other than our facility operating leases.During the periods presented, we did not have any relationships with unconsolidated entities or financial partnerships, such as entities often referred to as structured finance or special purpose entities, which would have been established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes.

Item 3. Quantitative and Qualitative Disclosures about Market Risk

Credit—Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. The Company’s cash equivalents consist of cash and money market accounts with a financial institution that management believes to be of high-credit quality; however, at times, balances exceed federally insured limits. Amounts held on deposit at financial institutions in excess of Federal Deposit Insurance Corporation-insured amounts were $0.4 million and $0.9 million as of March 31, 2018 and December 31, 2017, respectively

Concentration of Credit Risk - We are exposed to the credit risk of our customers. Our concentration of accounts receivable with our significant customers and their manufacturing subcontractors as of March 31, 2018 and December 31, 2017 and revenue for the three months ended March 31, 2018 and 2017 was as follows:

	As of			As of
	March 31,			December 31,
	2018			2017
Accounts Receivable:
Customer A		36	%		49	%
Customer B	49			34

	Three Months Ended
	March 31,
	2018			2017
Revenue:
Customer A		55	%		63	%
Customer B	28			26

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Foreign Currency Risk

Our results of operations and cash flows are subject to fluctuations due to changes in foreign currency exchange rates. All of our revenue is denominated in U.S. dollars. Our expenses are generally denominated in the currencies in which our operations are located, which is primarily in the United States and to a lesser extent in India, the Netherlands and Russia. Our results of operations and cash flows are, therefore, subject to fluctuations due to changes in foreign currency exchange rates and may be adversely affected in the future due to changes in foreign exchange rates. The effect of a hypothetical 10% change in foreign currency exchanges rates applicable to our business would not have a material impact on our consolidated financial statements.

Interest Rate Risk

We had cash, cash equivalents and short-term investments of $63.0 million and $56.4 million as of March 31, 2018 and December 31, 2017, respectively, consisting of bank deposits, commercial paper, U.S. government securities, corporate bonds and money market funds. Our exposure to market interest-rate risk relates primarily to our investment portfolio. We do not use derivative financial instruments to hedge the market risks of our investments. We manage our total portfolio to encompass a diversified pool of investment-grade securities to preserve principal and maintain liquidity. We place our investments with high-quality issuers, money market funds and debt securities which includes fixed and floating rate instruments. Fixed rate securities may have their market value adversely impacted due to an increase in interest rates, while floating rate securities may produce less income than expected if interest rates fall. Due in part to these factors, our future investment income may fall short of expectations due to changes in interest rates or if the decline in fair value of our publicly traded debt investments is judged to be other-than-temporary. We may suffer losses in principal if we are forced to sell securities that have declined in market value due to changes in interest rates. However, the effect of a hypothetical 10% change in interest rates would not have a material impact on our consolidated financial statements.

Item 4. Controls and Procedures

Evaluation of disclosure controls and procedures

We maintain “disclosure controls and procedures,” as defined in Rule 13a-15(e) and Rule 15d-15(e) under the Exchange Act that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to our management, including our principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure.

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures as of the end of the period covered by this Quarterly Report on Form 10-Q.

Based on that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that as of March 31, 2018, our disclosure controls and procedures were effective at the reasonable assurance level.

Changes in internal control over financial reporting

There have been no changes in our internal control over financial reporting that occurred during the period covered by this Quarterly Report on Form 10-Q that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Inherent limitations

Our management, including our Chief Executive Officer and Chief Financial Officer, believes that our disclosure controls and procedures and internal control over financial reporting are designed to provide reasonable assurance of achieving their objectives and are effective at the reasonable assurance level. However, our management does not expect that our disclosure controls and procedures or our 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. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. 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. These inherent limitations include the realities that judgments in decision making can be faulty, and that breakdowns can occur because of a simple error or mistake. Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more people or by management override of the controls. The design of any system of controls 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; over time, controls may become inadequate because of changes in conditions, or the degree of compliance with policies or procedures may deteriorate. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

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PART II. OTHER INFORMATION

Item 1. Legal Proceedings

From time to time, we may become involved in legal proceedings arising in the ordinary course of our business. We are not currently a party to any legal proceedings the outcome of which, if determined adversely to us, would individually or in the aggregate have a material adverse effect on our business, operating results, financial condition or cash flows.

Item 1A.Risk Factors

Our operations and financial results are subject to various risks and uncertainties including those described below. You should consider carefully the risks and uncertainties described below, in addition to other information contained in this Quarterly Report on Form 10-Q, including our unaudited condensed consolidated financial statements and related notes. The risks and uncertainties described below are not the only ones we face. Additional risks and uncertainties that we are unaware of, or that we currently believe are not material, may also become important factors that adversely affect our business. If any of the following risks or others not specified below materialize, our business, financial condition and results of operations could be materially and adversely affected. In that case, the trading price of our common stock could decline.

Risks Related to Our Business and Our Industry

We depend on a limited number of customers for a substantial majority of our revenue. If we fail to retain or expand our customer relationships or if our customers cancel or reduce their purchase commitments, our revenue could decline significantly.

We derive a substantial majority of our revenue from a limited number of customers. We believe that our operating results for the foreseeable future will continue to depend on sales to Intel Corporation, or Intel, and Cisco Systems, Inc., or Cisco, our two largest customers. For the three months ended March 31, 2018 and 2017, sales to Intel accounted for approximately 55% and 63% of our revenue, respectively. For the three months ended March 31, 2018 and 2017, sales to Cisco accounted for approximately 28% and 26% of our revenue, respectively. Substantially all of our sales to date, including sales to Intel and Cisco, have been made on a purchase order basis, which orders may be cancelled, changed or delayed with little or no notice or penalty. As a result of this customer concentration, our revenue could fluctuate materially and could be materially and disproportionately impacted by purchasing decisions of Intel, Cisco or any other significant customer. In the future, Intel, Cisco or any other significant customer may decide to purchase fewer units than they have in the past, may alter their purchasing patterns at any time with limited notice, or may decide not to continue to purchase our semiconductor solutions at all, any of which could cause our revenue to decline materially and materially harm our financial condition and results of operations. In addition, our relationships with existing customers may deter potential customers who compete with these customers from buying our semiconductor solutions. If we are unable to diversify our customer base, we will continue to be susceptible to risks associated with customer concentration.

Our revenue and operating results may fluctuate from period to period, which could cause our stock price to fluctuate.

Our revenue and operating results have fluctuated in the past and may fluctuate from period to period in the future due to a variety of factors, many of which are beyond our control. Factors relating to our business that may contribute to these fluctuations include the following factors:

• customer demand and product life cycles;

• the receipt, reduction or cancellation of orders by customers;

• fluctuations in the levels of component inventories held by our customers, which have in the past caused significant fluctuations in our revenue;

• the gain or loss of significant customers;

• market acceptance of our products and our customers’ products;

• our ability to develop, introduce and market new products and technologies on a timely basis;

• the timing and extent of product development costs;

• new product announcements and introductions by us or our competitors;

• our research and development costs and related new product expenditures;

• seasonality and fluctuations in sales by product manufacturers that incorporate our semiconductor solutions into their products;

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• end-market demand into which we have limited insight, including cyclicality, seasonality and the competitive landscape;

• cyclical fluctuations in the semiconductor market;

• fluctuations in our manufacturing yields;

• significant warranty claims, including those not covered by our suppliers; and

• changes in our pricing, product cost and product mix.

As a result of these and other factors, you should not rely on the results of any prior quarterly or annual periods, or any historical trends reflected in such results, as indications of our future revenue or operating performance. Fluctuations in our revenue and operating results could cause our stock price to decline.

We have an accumulated deficit and have incurred net losses in the past, and we may continue to incur net losses in the future.

As of March 31, 2018, we had an accumulated deficit of $199.0 million. We generated net losses of $1.4 million and $2.0 million for the three months ended March 31, 2018 and 2017, respectively. We may continue to incur net losses in the future.

Our success and future revenue depend on our ability to achieve design wins and to convince our current and prospective customers to design our products into their product offerings. If we do not continue to win designs or our products are not designed into our customers’ product offerings, our results of operations and business will be harmed.

We sell our semiconductor solutions to customers who include our solutions in their hardware products. This selection process is typically lengthy and may require us to incur significant design and development expenditures and dedicate scarce engineering resources in pursuit of a single design win. If we fail to convince our current or prospective customers to include our products in their product offerings or fail to achieve a consistent number of design wins, our results of operations and business will be harmed.

Because of our extended sales cycle, our revenue in future years is highly dependent on design wins we are awarded today. It is typical that a design win today will not result in meaningful revenue until one year or later, if at all. For example, for the year ended December 31, 2017, substantially all of our revenue was derived from design wins for which revenue was first recognized more than 12 months beforehand. If we do not continue to win designs in the short term, our revenue in the following years will deteriorate.

Further, a significant portion of our revenue in any period may depend on a single product design win with a large customer. As a result, the loss of any key design win or any significant delay in the ramp of volume production of the customer’s products into which our product is designed could adversely affect our financial condition and results of operations. We may not be able to maintain sales to our key customers or continue to secure key design wins for a variety of reasons, and our customers can stop incorporating our products into their product offerings with limited notice to us and suffer little or no penalty.

The loss of a key customer or design win, a reduction in sales to any key customer, a significant delay or negative development in our customers’ product development plans, or our inability to attract new significant customers or secure new key design wins could seriously impact our revenue and materially and adversely affect our results of operations.

The success of our products is dependent on our customers’ ability to develop products that achieve market acceptance, and our customers’ failure to do so could negatively affect our business.

The success of our semiconductor solutions is heavily dependent on the timely introduction, quality and market acceptance of our customers’ products incorporating our solutions, which may be impacted by factors beyond our control. Our customers’ products are often very complex and subject to design complexities that may result in design flaws, as well as potential defects, errors and bugs. We have in the past been subject to delays and project cancellations as a result of design flaws in the products developed by our customers, changing market requirements, such as the customer adding a new feature, or because a customer’s product fails their end customer’s evaluation or field trial. In other cases, customer products are delayed due to incompatible deliverables from other vendors. We incur significant design and development costs in connection with designing our products for customers’ products that may not ultimately achieve market acceptance. If our customers discover design flaws, defects, errors or bugs in their products, or if they experience changing market requirements, failed evaluations or field trials, or incompatible deliverables from other vendors, they may delay, change or cancel a project, and we may have incurred significant additional development costs and may not be able to recoup our costs, which in turn would adversely affect our business and financial results.

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Defects in our products could harm our relationships with our customers and damage our reputation.

Defects in our products may cause our customers to be reluctant to buy our products, which could harm our ability to retain existing customers and attract new customers and adversely impact our reputation and financial results. The process of identifying a defective or potentially defective product in systems that have been widely distributed may be lengthy and require significant resources. Further, if we are unable to determine the root cause of a problem or find an appropriate solution, we may delay shipment to customers. As a result, we may incur significant replacement costs and contract damage claims from our customers, and our reputation and financial results may be adversely affected.

Our target markets may not grow or develop as we currently expect, and if we fail to penetrate new markets and scale successfully within those markets, our revenue and financial condition would be harmed.

A substantial majority of our revenue is derived from the data center market. In 2014, we began introducing products for the enterprise infrastructure market and, in 2016, we began introducing products into the access market which serves the client connectivity and carrier access markets. We are currently developing solutions for Multi-Gig Ethernet over copper with major car manufacturers and Tier-1 suppliers in the automotive market. Any deterioration in these markets or reduction in capital spending to support these markets could lead to a reduction in demand for our products, which would adversely affect our revenue and results of operations. Further, if our target markets do not grow or develop in ways that we currently expect, demand for our technology may not materialize as expected, which would also negatively impact our business.

We may be unable to predict the timing or development of trends in these end markets with any accuracy and these trends may not be beneficial to us. If we fail to accurately predict market requirements or market demand for these solutions, our business will suffer. A market shift towards an industry standard that we may not support could significantly decrease the demand for our solutions. For example, we have invested significant resources in developing semiconductor solutions to address 2.5 Gigabit Ethernet, or GbE, and 5GbE operation over today’s Cat5e and Cat6 cabling infrastructure. If these technologies are not adopted as an industry standard, our investment may not lead to future revenue.

Our future revenue growth, if any, will depend in part on our ability to expand within our existing markets, our ability to continue to penetrate newer markets, such as the access market which we entered in 2016, and our ability to enter into new markets, such as the automotive market. Each of these markets presents distinct and substantial challenges and risks and, in many cases, requires us to develop new customized solutions to address the particular requirements of that market. Meeting the technical requirements and securing design wins in any of these new markets will require a substantial investment of our time and resources. We cannot assure you that we will secure design wins from these or other new markets, or that we will achieve meaningful revenue from sales with these markets. If any of these markets do not develop as we currently anticipate or if we are unable to penetrate them and scale in them successfully, our projected revenue would decline.

If we are unable to manage our growth effectively, we may not be able to execute our business plan and our operating results and stock price could suffer.

In order to succeed in executing our business plan, we will need to manage our growth effectively as we make significant investments in research and development and sales and marketing, and expand our operations and infrastructure both domestically and internationally. In addition, in connection with operating as a public company, we will incur additional significant legal, accounting and other expenses that we did not incur as a private company. If our revenue does not increase to offset these increases in our expenses, we may not achieve or maintain profitability in future periods.

To manage our growth effectively, we must continue to expand our operations, engineering, financial accounting, internal management and other systems, procedures and controls. This may require substantial managerial and financial resources, and our efforts may not be successful. Any failure to successfully implement systems enhancements and improvements will likely have a negative impact on our ability to manage our expected growth, as well as our ability to ensure uninterrupted operation of key business systems and compliance with the rules and regulations applicable to public companies. If we are unable to manage our growth effectively, we may not be able to take advantage of market opportunities or develop new semiconductor solutions, and we may fail to satisfy customer product or support requirements, maintain the quality of our solutions, execute our business plan or respond to competitive pressures, any of which could negatively affect our brand, results of operations and overall business.

The average selling prices of our products and of other products in our markets have decreased historically over time and may do so in the future, which could harm our revenue and gross margins.

The average selling prices of our products and of other semiconductor products in the markets we serve generally have decreased over time. Our revenue is derived from sales to large customers and, in some cases, we have agreed in advance to modest price reductions, generally over a period of time ranging from 18 months to five years, once the specified product begins to ship in volume.

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However, our customers may change their purchase orders and demand forecasts at any time with limited notice due in part to fluctuating end-market demand, which can sometimes lead to price renegotiations. Although these price renegotiations can sometimes result in the average selling prices fluctuating over the shorter term, we expect average selling prices generally to decline over the longer term as our products mature.

We seek to offset the anticipated reductions in our average selling prices by reducing the cost of our products through improvements in manufacturing yields and lower wafer, assembly and testing costs, developing new products, enhancing lower-cost products on a timely basis and increasing unit sales. However, if we are unable to offset these anticipated reductions in our average selling prices, our results of operations, cash flows and overall business could be negatively affected.

If we are not able to successfully introduce and ship in volume new products as our existing products near the end of their product lifecycle, our business and revenue will suffer.

We have developed products that we anticipate will have product life cycles of 10 years or more, as well as other products in more volatile high growth or rapidly changing areas, which may have shorter life cycles. Our future success depends, in part, on our ability to develop and introduce new technologies and products that generate new sources of revenue to replace, or build upon, existing revenue streams that may be dependent upon limited product life cycles. If we are unable to repeatedly introduce, in successive years, new products that ship in volume, or if our transition to these new products does not successfully occur prior to any decrease in revenue from our prior products, our revenue will likely decline significantly and rapidly.

Our gross margins may fluctuate due to a variety of factors, which could negatively impact our results of operations and our financial condition.

Our gross margins may fluctuate due to a number of factors, including customer and product mix, market acceptance of our new products, timing and seasonality of the end-market demand, yield, wafer pricing, competitive pricing dynamics and geographic and market pricing strategies.

Further, because we are so dependent on a few large customers, these customers have significant leverage with respect to negotiating pricing and other terms with us and may put downward pressure on our margins. To attract new customers or retain existing customers, we have in the past and will in the future offer certain customers favorable prices, which would decrease our average selling prices and likely impact gross margins. Further, we may also offer pricing incentives to our customers on earlier generations of products that inherently have a higher cost structure, which would negatively affect our gross margins.

Because we do not operate our own manufacturing, assembly or testing facilities, we may not be able to reduce our costs as rapidly as companies that operate their own facilities, and our costs may even increase, which could further reduce our gross margins. We rely primarily on obtaining yield improvements and volume-based cost reductions to drive cost reductions in the manufacture of existing products, introducing new products that incorporate advanced features and optimize die size, and other price and performance factors that enable us to increase revenue while maintaining gross margins. To the extent that such cost reductions or revenue increases do not occur in a timely manner, our financial condition and results of operations could be adversely affected.

In addition, we maintain inventory of our products at various stages of production and in finished good inventory. We hold these inventories in anticipation of customer orders. If those customer orders do not materialize, we may have excess or obsolete inventory which we would have to reserve or write off, and our gross margins would be adversely affected.

Our customers require our products and our third-party contractors to undergo a lengthy and expensive qualification process which does not assure product sales. If we are unsuccessful or delayed in qualifying any of our products with a customer, our business and operating results would suffer.

Prior to purchasing our semiconductor solutions, our customers require that both our solutions and our third-party contractors undergo extensive qualification processes, which involve testing of our products in the customers’ systems, as well as testing for reliability. This qualification process may continue for several months. However, qualification of a product by a customer does not assure any sales of the product to that customer. Even after successful qualification and sales of a product to a customer, a subsequent revision in our third-party contractors’ manufacturing process or our selection of a new supplier may require a new qualification process with our customers, which may result in delays and in our holding excess or obsolete inventory. After our products are qualified, it can take several months or more before the customer commences volume production of components or systems that incorporate our products. Despite these uncertainties, we devote substantial resources, including design, engineering, sales, marketing and management efforts, to qualifying our products with customers in anticipation of sales. If we are unsuccessful or delayed in qualifying any of our products with a customer, sales of those products to the customer may be precluded or delayed, which would cause our business and operating results to suffer.

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We may be subject to warranty or product liability claims, which could result in unexpected expenses and loss of market share.

From time to time, we may be subject to warranty or product liability claims that may require us to make significant expenditures to defend those claims, replace our solutions, refund payments or pay damage awards. We generally agree to indemnify our customers for defects in our products.

If a customer’s equipment fails in use, the customer may incur significant monetary damages, including an equipment recall or associated replacement expenses as well as lost revenue. The customer may claim that a defect in our product caused the equipment failure and assert a claim against us to recover monetary damages. In certain situations, circumstances might warrant that we consider incurring the costs or expense related to a recall of one of our products in order to avoid the potential claims that may be raised should a customer reasonably rely upon our product and suffer a failure due to a design or manufacturing process defect. In addition, the cost of defending these claims and satisfying any arbitration award or judgment with respect to these claims would result in unexpected expenses and could harm our business prospects. Although we carry product liability insurance, this insurance is subject to significant deductibles and may not adequately cover our costs arising from defects in our products or otherwise.

If we fail to accurately anticipate and respond to rapid technological change in the industries in which we operate, our ability to attract and retain customers could be impaired and our competitive position could be harmed.

We operate in industries characterized by rapidly changing technologies as well as technological obsolescence. The introduction of new products by our competitors, the delay or cancellation of any of our customers’ product offerings for which our semiconductor solutions are designed, the market acceptance of products based on new or alternative technologies or the emergence of new industry standards could render our existing or future products uncompetitive, obsolete and otherwise unmarketable. Our failure to anticipate or timely develop new or enhanced products or technologies in response to changing market demand, whether due to technological shifts or otherwise, could result in the loss of customers and decreased revenue and have an adverse effect on our operating results.

If our products do not conform to, or are not compatible with, existing or emerging industry standards, demand for our existing solutions may decrease, which in turn would harm our business and operating results.

We design certain of our products to conform to current industry standards. Some industry standards may not be widely adopted or implemented uniformly, and competing standards may emerge that may be preferred by our customers or by our third-party suppliers. In addition, existing standards may be challenged as infringing upon the intellectual property rights of other companies or may be superseded by new innovations or standards.

Our ability to compete in the future will depend on our ability to identify and ensure compliance with evolving industry standards in our target markets, including in the data center and enterprise infrastructure markets. The emergence of new industry standards could render our products incompatible with products developed by third-party suppliers or make it difficult for our products to meet the requirements of certain original equipment manufacturers, or OEMs. If our customers or our third-party suppliers adopt new or competing industry standards with which our solutions are not compatible, or if industry groups fail to adopt standards with which our solutions are compatible, our products would become less desirable to our current or prospective customers. As a result, our sales would suffer, and we could be required to make significant expenditures to develop new solutions.

Although we believe our products are fully compliant with applicable industry standards, proprietary enhancements may not in the future result in full conformance with existing industry standards under all circumstances. Due to the interdependence of various components in the systems within which our products and the products of our competitors operate, once a design is adopted, customers are unlikely to switch to another design until the next generation of the applicable technology. For example, we have developed our AQrate technology, which is designed to address 2.5GbE and 5GbE operation over today’s Cat5e and Cat6 cabling infrastructure. If this semiconductor solution fails to meet the needs of our customers or penetrate new markets in a timely fashion, and does not gain acceptance, we may not maintain or may lose market share and our competitive position, and operating results will be adversely affected.

We may experience difficulties demonstrating the value to customers of newer solutions if they believe existing solutions are adequate to meet end customer expectations. If we are unable to sell new generations of our product, our business would be harmed.

As we develop and introduce new solutions, we face the risk that customers may not value or be willing to bear the cost of incorporating these newer solutions into their product offerings, particularly if they believe their customers are satisfied with those current offerings. Regardless of the improved features or superior performance of the newer solutions, customers may be unwilling to adopt our new solutions due to design or pricing constraints. Because of the extensive time and resources that we invest in developing new solutions, if we are unable to sell customers new generations of our solutions, our revenue could decline and our business, financial condition, results of operations and cash flows would be negatively affected.

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We depend on our executive officers and other key employees, and the loss of one or more of these employees or an inability to attract and retain highly skilled employees could adversely affect our business.

Our success depends largely upon the continued services of our executive officers and other key employees, including our design and technical personnel. From time to time, there may be changes in our executive management team or other key personnel, which could disrupt our business. We do not have employment agreements with our executive officers or other key personnel that require them to continue to work for us for any specified period and, therefore, they could terminate their employment with us at any time. The loss of one or more of our senior executive officers or other key employees could have an adverse effect on our business.

In addition, to execute our growth plan, we must attract and retain highly qualified personnel. Competition for these personnel in the San Francisco Bay Area, where our headquarters is located, and in other locations where we maintain offices, is intense, especially for engineers experienced in designing and developing semiconductor solutions. We have from time to time experienced, and we expect to continue to experience, difficulty in hiring and retaining employees with appropriate qualifications. Many of the companies with which we compete for experienced personnel have greater resources than we have. If we hire employees from competitors or other companies, their former employers may attempt to assert that these employees or we have breached legal obligations, resulting in a diversion of our time and resources if we respond to them. In addition, job candidates and existing employees often consider the value of the equity awards they receive in connection with their employment. If the perceived value of our equity awards declines, it may adversely affect our ability to recruit and retain highly skilled employees. If we fail to attract new personnel or fail to retain and motivate our current personnel, our business and future growth prospects could be adversely affected.

We may be unable to make the substantial investments that are required to remain competitive in our business.

The semiconductor industry requires substantial and continuous investment in research and development in order to bring to market new and enhanced solutions. Our research and development expenses were $12.6 million and $10.4 million for the three months ended March 31, 2018 and 2017, respectively. We expect to increase our research and development expenditures compared to prior periods as part of our strategy to increase demand for our solutions in our current markets and to expand into additional markets. We are a smaller company with limited resources, and we may not have sufficient resources to maintain the level of investment in research and development required to remain competitive. In addition, we cannot assure you that the technologies, which are the focus of our research and development expenditures, will become commercially successful or generate any revenue.

If we fail to compete effectively, we may lose or fail to gain market share, which could negatively impact our operating results and our business.

The global semiconductor market in general, and the data center and enterprise communications markets in particular, is highly competitive. We compete in our target markets on the basis of a number of competitive factors. We expect competition to increase and intensify as additional semiconductor companies enter our target markets, and as internal silicon design resources of large OEMs grow. Increased competition could result in price pressure, reduced gross margins and loss of market share, any of which could harm our business, revenue and results of operations. Our competitors range from large, international companies offering a wide range of semiconductor products to smaller companies specializing in narrow market verticals. In the markets we serve, our primary competitors are Broadcom and Marvell. We expect competition in our current markets to increase in the future as existing competitors improve or expand their product offerings and as new competitors enter these markets. In addition, our future growth will depend in part on our ability to successfully enter and compete in new markets, such as the access market. Some of these markets will likely be served by only a few large, multinational OEMs with substantial negotiating and buying power relative to us and, in some instances, with internally developed silicon solutions that can be competitive to our products.

Our ability to compete successfully depends, in part, on factors that are outside of our control, including industry and general economic trends. Many of our competitors are substantially larger, have greater financial, technical, marketing, distribution, customer support and other resources, are more established than we are and have significantly better brand recognition and broader product offerings, which may enable them to better withstand adverse economic or market conditions in the future and reduce their pricing so as to compete against us. Our ability to compete successfully will depend on a number of factors, including:

• our ability to define, design and regularly introduce new products that anticipate the functionality and integration needs of our customers’ next-generation products and applications;

• our ability to build strong and long-lasting relationships with our customers and other industry participants;

• our ability to capitalize on, and prevent losses due to, vertical integration by significant customers, including Intel and Cisco;

• our solutions’ performance and cost-effectiveness relative to those of competing products;

• the effectiveness and success of our customers’ products utilizing our solutions within their competitive end markets;

• our research and development capabilities to provide innovative solutions and maintain our product roadmap;

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• the strength of our sales and marketing efforts, and our brand awareness and reputation;

• our ability to deliver products in volume on a timely basis at competitive prices;

• our ability to build and expand international operations in a cost-effective manner;

• our ability to protect our intellectual property and obtain intellectual property rights from third parties that may be necessary to meet the evolving demands of the market;

• our ability to promote and support our customers’ incorporation of our solutions into their products;

• our ability to continue to develop products at each new technology node; and

• our ability to retain high-level talent, including our management team and engineers.

Our competitors may also establish cooperative relationships among themselves or with third parties or may acquire companies that provide similar products to ours. As a result, new competitors or alliances may emerge that could capture significant market share. Any of these factors, alone or in combination with others, could harm our business and result in a loss of market share and an increase in pricing pressure. In addition, a number of our competitors are able to sell their solutions through multiple channels, including through distributors and third-party sales organizations, while we rely primarily on direct sales, which may provide our competitors with a strategic advantage in sales of their solutions and could harm our prospects and business.

We depend on third parties for our wafer, assembly and testing operations, which exposes us to certain risks that may harm our business.

We operate an outsourced manufacturing business model. As a result, we rely on third parties for all of our manufacturing operations, including wafer fabrication, assembly and testing. Although we use multiple third-party supplier sources, we depend on these third parties to supply us with material of a requested quantity in a timely manner that meets our standards for yield, cost and manufacturing quality. We do not have any long-term supply agreements with any of our manufacturing suppliers. These third-party manufacturers often serve customers that are larger than us or require a greater portion of their services, which may decrease our relative importance and negotiating leverage with these third parties.

If market demand for wafers or production and assembly materials increases, or if a supplier of our wafers ceases or suspends operations, our supply of wafers and other materials could become limited. We currently rely on Taiwan Semiconductor Manufacturing Company, or TSMC, for most of our semiconductor wafer production, and any disruption in their supply of wafers or any increases in their wafer or materials prices could adversely affect our gross margins and our ability to meet customer demands in a timely manner, or at all, and lead to reduced revenue. Moreover, wafers constitute a large portion of our product cost. If we are unable to purchase wafers at favorable prices, our gross margins would be adversely affected.

To ensure continued wafer supply, we may be required to establish alternative wafer supply sources, which could require significant expenditures and limit our negotiating leverage. We currently rely on TSMC as our primary foundry; and only a few foundry vendors have the capability to manufacture our most advanced solutions. If we engage alternative supply sources, we may encounter start-up difficulties and incur additional costs. In addition, shipments could be significantly delayed while these sources are qualified for volume production.

Certain of our manufacturing facilities are located outside of the United States, where we are subject to increased risk of political and economic instability, difficulties in managing operations, difficulties in enforcing contracts and our intellectual property, and employment and labor difficulties. Any of these factors could result in manufacturing and supply problems, and delays in our ability to provide our solutions to our customers on a timely basis, or at all. If we experience manufacturing problems at a particular location, we may be required to transfer manufacturing to a new location or supplier. Converting or transferring manufacturing from a primary location or supplier to a backup facility could be expensive and could take several quarters or more. During such a transition, we would be required to meet customer demand from our then-existing inventory, as well as any partially finished goods that could be modified to the required product specifications. We do not seek to maintain sufficient inventory to address a lengthy transition period because we believe it is uneconomical to keep more than minimal inventory on hand and because semiconductors are subject to a rapid obsolescence timeline. As a result, we may not be able to meet customer needs during such a transition, which could damage our customer relationships.

If one or more of these vendors terminates its relationship with us, or if we encounter any problems with our manufacturing supply chain, our ability to ship our solutions to our customers on time and in the quantity required would be adversely affected, which in turn could cause an unanticipated decline in our sales and loss of customers.

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If the foundries that we employ do not achieve satisfactory yields or quality, our reputation and customer relationships could be harmed.

We depend on satisfactory foundry manufacturing capacity, wafer prices and production yields, as well as timely wafer delivery to meet customer demand and maintain gross margins. The fabrication of our products is a complex and technically demanding process. Minor deviations in the manufacturing process can cause substantial decreases in yields and, in some cases, cause production to be suspended. Our foundry vendors may experience manufacturing defects and reduced manufacturing yields from time to time. Further, any new foundry vendors we employ may present additional and unexpected manufacturing challenges that could require significant management time and focus. Changes in manufacturing processes or the inadvertent use of defective or contaminated materials by the foundries that we employ could result in lower than anticipated production yields or unacceptable performance of our devices. Many of these problems are difficult to detect at an early stage of the manufacturing process and may be time consuming and expensive to correct. Poor production yields from the foundries that we employ, or defects, integration issues or other performance problems in our solutions could significantly harm our customer relationships and financial results, and give rise to financial or other damages to our customers. Any product liability claim brought against us, even if unsuccessful, would likely be time consuming and costly to defend.

We rely on our relationships with industry and technology leaders to enhance our product offerings and our inability to continue to develop or maintain such relationships in the future would harm our ability to remain competitive.

We develop many of our semiconductor products for applications in systems that are driven by industry and technology leaders in the communications and computing markets. We work with IC suppliers, OEMs, system manufacturers and standards bodies, such as the Institute of Electrical and Electronics, or IEEE, and the NBASE-T Alliance, to define industry conventions and standards within our target markets. For example, AQrate has been established as the technology leader through its adoption by the IEEE as the baseline for the IEEE 802.3bz standard for 2.5GBASE-T and 5GBASE-T products. We believe that these relationships enhance our ability to achieve market acceptance and widespread adoption of our products. If we are unable to continue to develop or maintain these relationships, our semiconductor solutions could become less desirable to our customers, our sales could suffer and our competitive position could be harmed.

We are subject to the cyclical nature of the semiconductor industry.

The semiconductor industry is highly cyclical and is characterized by constant and rapid technological change, rapid product obsolescence, price erosion, evolving standards, short product life cycles and wide fluctuations in product supply and demand. The industry experienced a significant downturn during the most recent global recession. These downturns have been characterized by diminished product demand, production overcapacity, high inventory levels and accelerated erosion of average selling prices. Any future downturns in the semiconductor industry could harm our business and operating results. Furthermore, any significant upturn in the semiconductor industry could result in increased competition for access to third-party foundry and assembly capacity. We are dependent on the availability of this capacity to manufacture and assemble our products and we can provide no assurance that adequate capacity will be available to us in the future.

Deterioration of the financial conditions of our customers could adversely affect our operating results.

The deterioration of the financial condition of our customers could adversely impact our collection of accounts receivable. We regularly review the collectability and creditworthiness of our customers to determine an appropriate allowance for doubtful accounts. Based on our review of our customers, substantially all of which are very large IC Suppliers, OEMs, we currently have no reserve for doubtful accounts. If our doubtful accounts, however, were to exceed our current or future allowance for doubtful accounts, our operating results would be adversely affected.

In preparing our consolidated financial statements, we make good faith estimates and judgments that may change or turn out to be erroneous, which could adversely affect our operating results for the periods in which we revise our estimates or judgments.

In preparing our consolidated financial statements in conformity with U.S. generally accepted accounting principles, or GAAP, we must make estimates and judgments in applying our most critical accounting policies. Those estimates and judgments have a significant impact on the results we report in our consolidated financial statements. The most difficult estimates and subjective judgments that we make relate to revenue recognition, inventories, stock-based compensation and income taxes. We base our estimates on historical experience, input from outside experts and on various other assumptions that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. We also have other key accounting policies that are not as subjective, and therefore, their application would not require us to make estimates or judgments that are as difficult, but which nevertheless could significantly affect our financial reporting. Actual results may differ materially from these estimates. If these estimates, judgments or their related assumptions change, our operating results for the periods in which we revise our estimates, judgments or assumptions could be adversely and perhaps materially affected.

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Changes to financial accounting standards may affect our results of operations and could cause us to change our business practices.

We prepare our consolidated financial statements to conform to GAAP. These accounting principles are subject to interpretation by the Financial Accounting Standards Board, the Securities and Exchange Commission, or the SEC, and various bodies formed to interpret and create accounting rules and regulations. In the past few years, new accounting standards have been issued which are expected substantially change the accounting for most companies including those related to revenue recognition and leasing. Changes in accounting rules can have a significant effect on our reported financial results and may affect our reporting of transactions completed before a change is announced. Changes to those rules or the questioning of current practices may adversely affect our financial results or the way we conduct our business.

Future loan agreements could contain certain restrictive covenants that may limit our operating flexibility.

We have in the past, and may in the future, entered into loan agreements which could contain certain restrictive covenants that either limit our ability to, or require a mandatory prepayment in the event that, we incur additional indebtedness or liens, merge with other companies or consummate certain changes of control, acquire other companies, make certain investments, pay dividends, transfer or dispose of assets, amend certain material agreements or enter into various specified transactions. Furthermore, any restrictive terms may limit our operating flexibility which may in turn adversely impact our operating results. In addition, in the event of any future liquidation, any future lenders would be repaid all outstanding principal and interest prior to distribution of assets to unsecured creditors, and the holders of our common stock would receive a portion of any liquidation proceeds only if all of our creditors were first repaid in full.

We may not be able to accurately predict our future capital needs, and we may not be able to obtain additional financing to fund our operations.

We may need to raise additional funds in the future. Any required additional financing may not be available on terms acceptable to us, or at all. If we raise additional funds by issuing equity securities or convertible debt, investors may experience significant dilution of their ownership interest, and the newly-issued securities may have rights senior to those of the holders of our common stock. If we raise additional funds by obtaining loans from third parties, the terms of those financing arrangements may include negative covenants or other restrictions on our business that could impair our operational flexibility and would also require us to incur interest expense. If additional financing is not available when required or is not available on acceptable terms, we may have to scale back our operations or limit our production activities, and we may not be able to expand our business, develop or enhance our solutions, take advantage of business opportunities or respond to competitive pressures, which could negatively impact our revenue and the competitiveness of our products.

We may make acquisitions in the future that could disrupt our business, cause dilution to our stockholders, reduce our financial resources and harm our business.

In the future, we may acquire other businesses, products or technologies. Our ability to make acquisitions and successfully integrate personnel, technologies or operations of any acquired business is unproven. If we complete acquisitions, we may not achieve the combined revenue, cost synergies or other benefits from the acquisition that we anticipate, strengthen our competitive position or achieve our other goals in a timely manner, or at all, and these acquisitions may be viewed negatively by our customers, financial markets or investors. In addition, any acquisitions we make lead to difficulties in integrating personnel, technologies and operations from the acquired businesses and in retaining and motivating key personnel. Acquisitions may disrupt our ongoing operations, divert management from their primary responsibilities, subject us to additional liabilities, increase our expenses and adversely impact our business, results of operations, financial condition and cash flows. Acquisitions may also reduce our cash available for operations and other uses, and could result in an increase in amortization expense related to identifiable assets acquired, potentially dilutive issuances of equity securities or the incurrence of debt, any of which could harm our business.

A portion of our operations is located outside of the United States, which subjects us to additional risks, including increased complexity and costs of managing international operations and geopolitical instability.

We outsource the manufacturing of all of our products to third parties that are primarily located in Asia. In addition, we have research and development design centers in Canada, India, the Netherlands and Russia, and we expect to continue to conduct business with companies that are located outside the United States, particularly in Eastern Europe and Asia. As a result of our international focus, we face numerous challenges and risks, including:

• complexity and costs of managing international operations, including manufacture, assembly and testing of our products;

• geopolitical and economic instability and military conflicts;

• limited protection of our intellectual property and other assets;

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• compliance with local laws and regulations and unanticipated changes in local laws and regulations, including tax laws and regulations;

• trade and foreign exchange restrictions and higher tariffs;

• timing and availability of import and export licenses and other governmental approvals, permits and licenses, including export classification requirements;

• foreign currency fluctuations and exchange losses relating to our international operating activities;

• restrictions imposed by the U.S. government or foreign governments on our ability to do business with certain companies or in certain countries as a result of international political conflicts and the complexity of complying with those restrictions;

• transportation delays and other consequences of limited local infrastructure, and disruptions, such as large scale outages or interruptions of service from utilities or telecommunications providers;

• difficulties in staffing international operations;

• local business and cultural factors that differ from our normal standards and practices;

• differing employment practices and labor relations;

• heightened risk of terrorist acts;

• regional health issues, travel restrictions and natural disasters; and

• work stoppages.

Fluctuations in exchange rates between and among the currencies of the countries in which we do business could adversely affect our results of operations.

Our sales have been historically denominated in U.S. dollars. An increase in the value of the U.S. dollar relative to the currencies of the countries in which our customers operate could impair the ability of our customers to cost-effectively purchase or integrate our solutions into their product offerings, which may materially affect the demand for our solutions and cause these customers to reduce their orders, which in turn would adversely affect our revenue and business. If we increase operations in other currencies in the future, we may experience foreign exchange gains or losses due to the volatility of other currencies compared to the U.S. dollar. Certain of our employees are located in Canada, India, the Netherlands, Russia and Taiwan. Accordingly, a portion of our payroll as well as certain other operating expenses are paid in currencies other than the U.S. dollar. Our results of operations are denominated in U.S. dollars, and the difference in exchange rates in one period compared to another may directly impact period-to-period comparisons of our results of operations. Furthermore, currency exchange rates have been especially volatile in the recent past, and these currency fluctuations may make it difficult for us to predict our results of operations.

Failure to comply with the laws associated with our activities outside of the United States could subject us to penalties and other adverse consequences.

We face significant risks if we fail to comply with anti-corruption laws and anti-bribery laws, including, without limitation, the U.S. Foreign Corrupt Practices Act of 1977, as amended, or the FCPA, the U.S. Travel Act and the UK Bribery Act 2010, that prohibit improper payments or offers of payment to foreign governments and political parties by us for the purpose of obtaining or retaining business. In many foreign countries, particularly in countries with developing economies, it may be a local custom that businesses operating in such countries engage in business practices that are prohibited by the FCPA or other applicable laws and regulations. We are in the early stages of implementing our FCPA compliance program and cannot assure you that all of our employees and agents, as well as those companies to which we outsource certain of our business operations, will not take actions in violation of our policies and applicable law, for which we may be ultimately held responsible. Any violation of these laws could result in severe criminal or civil sanctions and, in the case of the FCPA, suspension or debarment from U.S. government contracting, which could have an adverse effect on our reputation, business, financial condition and results of operations.

We are subject to government regulation, including import, export and economic sanctions laws and regulations that may expose us to liability and increase our costs.

Our products and technology are subject to U.S. export controls, including the U.S. Department of Commerce’s Export Administration Regulations and economic and trade sanctions regulations administered by the U.S. Treasury Department’s Office of Foreign Assets Controls. These regulations may limit the export of our products and technology, and provision of our services outside of the United States, or may require export authorizations, including by license, a license exception or other appropriate government authorizations, including annual or semi-annual reporting and the filing of an encryption registration. Export control and economic

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sanctions laws may also include prohibitions on the sale or supply of certain of our products to embargoed or sanctioned countries, regions, governments, persons and entities. In addition, various countries regulate the importation of certain products, through import permitting and licensing requirements, and have enacted laws that could limit our ability to distribute our products. The exportation, reexportation, and importation of our products and technology and the provision of services, including by our partners, must comply with these laws or else we may be adversely affected, through reputational harm, government investigations, penalties, and a denial or curtailment of our ability to export our products and technology or provide services. Complying with export control and sanctions laws may be time consuming and may result in the delay or loss of sales opportunities. Although we take precautions to prevent our products and technology from being provided in violation of such laws, our products and technology may have previously been, and could in the future be, provided inadvertently in violation of such laws, despite the precautions we take. If we are found to be in violation of U.S. sanctions or export control laws, it could result in substantial fines and penalties for us and for the individuals working for us. Changes in export or import laws or corresponding sanctions, may adversely impact our operations, delay the introduction and sale of our products in international markets, or, in some cases, prevent the export or import of our products and technology to certain countries, regions, governments, persons or entities altogether, which could adversely affect our business, financial condition and results of operations.

New or future changes to U.S. and non-U.S. tax laws could materially adversely affect our company.

New or future changes in tax laws, regulations, and treaties, or the interpretation thereof, in addition to tax regulations enacted but not in effect, tax policy initiatives and reforms under consideration in the United States or related to the Organisation for Economic Co-operation and Development’s, or OECD, Base Erosion and Profit Shifting, or BEPS, Project, the European Commission’s state aid investigations, and other initiatives could have an adverse effect on the taxation of international businesses. Furthermore, countries where we are subject to taxes, including the United States, are independently evaluating their tax policy and we may see significant changes in legislation and regulations concerning taxation. Certain countries have already enacted legislation, including those related to BEPS Project, which could affect international businesses, and other countries have become more aggressive in their approach to audits and enforcement of their applicable tax laws. We are unable to predict what future tax reform may be proposed or enacted or what effect such changes would have on our business, but any such changes, to the extent they are brought into tax legislation, regulations, policies, or practices, could increase our effective tax rates in the countries where we have operations and have an adverse effect on our overall tax rate, along with increasing the complexity, burden and cost of tax compliance, all of which could impact our operating results, cash flows and financial condition.

The U.S. Tax Cuts and Jobs Act (the “Act”) was enacted on December 22, 2017. The Act among other changes, reduces the U.S. federal corporate tax rate from 35% to 21%, implements a modified territorial tax system that includes a one-time transition tax on deemed repatriation of previously untaxed accumulated earnings and profits of certain foreign subsidiaries, and creates new taxes on certain foreign-sourced earnings. Many of the provisions of the Act are highly complex and may be subject to further interpretive guidance from the Internal Revenue Service or others. The final impact of the Act may differ significantly from these estimates, due to, among other things, changes in interpretations and assumptions made by us as a result of additional information, additional guidance that may be issued by the U.S. Department of the Treasury. We continue to examine the impact of certain provisions of the Act that will become applicable in 2018 related to base erosion anti-abuse tax, global intangible low-taxed income, and other provisions that could adversely affect our effective tax rate in the future.  

We have recorded significant valuation allowances on our deferred tax assets, and the recording and release of such allowances may have a material impact on our results of operations and cause fluctuations in our stock price.

The need for a valuation allowance requires an assessment of both positive and negative evidence when determining whether it is more likely than not that deferred tax assets are recoverable; such assessment is required on a jurisdiction-by-jurisdiction basis. In making such assessment, significant weight is given to evidence that can be objectively verified. As such, we determined that full valuation allowance is required on our deferred tax assets.

In the future, we may release valuation allowance and recognize deferred tax assets depending on achieving profitability. We continue to monitor the likelihood that we will be able to recover our deferred tax asset. There can be no assurance that we will generate profits in future periods enabling it to fully realize its deferred tax. The timing of the reversal of such valuation allowance is subject to objective and subjective factors that cannot be readily predicted in advance. The reversal of a previously recorded valuation allowance may have a material impact on our financial results, which may lead to fluctuation in the value of our stock.

Tax regulatory authorities may disagree with our positions and conclusions regarding certain tax positions resulting in unanticipated costs or non-realization of expected benefits.

A tax authority may disagree with tax positions that we have taken. For example, the Internal Revenue Service or another tax authority could challenge our allocation of income by tax jurisdiction and the amounts paid between our affiliated companies pursuant to our intercompany arrangements and transfer pricing policies, including amounts paid with respect to our intellectual property in connection with our intercompany research and development cost sharing arrangement and legal structure. A tax authority may take the

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position that material income tax liabilities, interest and penalties are payable by us, in which case, we expect that we might contest such assessment. Contesting such an assessment may be lengthy and costly and if we were unsuccessful in disputing the assessment, the implications could materially and adversely affect our anticipated effective tax rate or operating income, where applicable.

Catastrophic events may disrupt our business.

Our corporate headquarters and our foundry vendors are located in areas that are in active earthquake zones. In the event of a major earthquake, hurricane or other catastrophic event such as fire, power loss, telecommunications failure, cyber-attack, war, terrorist attack or disease outbreak, we may be unable to continue our operations and may endure system interruptions, reputational harm, delays in our product development, breaches of data security, or loss of critical data, any of which could have an adverse effect on our future results of operations.

A breach of our security systems may damage our reputation and adversely affect our business.

Our security systems are designed to protect our customers’, suppliers’ and employees’ confidential information, as well as maintain the physical security of our facilities. We also rely on a number of third-party cloud-based service providers of corporate infrastructure services relating to, among other things, human resources, electronic communication services and some finance functions, and we are, of necessity, dependent on the security systems of these providers. Any security breaches or other unauthorized access by third parties to the systems of our cloud-based service providers or the existence of computer viruses in their data or software could expose us to a risk of information loss and misappropriation of confidential information. Accidental or willful security breaches or other unauthorized access by third parties to our information systems or facilities, or the existence of computer viruses in our data or software, could expose us to a risk of information loss and misappropriation of proprietary and confidential information. Any theft or misuse of this information could result in, among other things, unfavorable publicity, damage to our reputation, difficulty in marketing our products, allegations by our customers that we have not performed our contractual obligations, litigation by affected parties and possible financial obligations for liabilities and damages related to the theft or misuse of this information, any of which could have an adverse effect on our business, financial condition, our reputation and our relationships with our customers and suppliers. Since the techniques used to obtain unauthorized access or to sabotage systems change frequently and are often not recognized until after they are launched against a target, we may be unable to anticipate these techniques or to implement adequate preventative measures.

Risks Related to Our Intellectual Property and Potential Product Liability

Our failure to adequately protect our intellectual property rights could impair our ability to compete effectively or defend ourselves from litigation, which could harm our business, financial condition and results of operations.

Our success depends, in part, on our ability to protect our intellectual property. We rely primarily on patent, copyright, trademark and trade secret laws, as well as confidentiality and non-disclosure agreements and other contractual protections, to protect our technologies and proprietary know-how, all of which offer only limited protection. The steps we have taken to protect our intellectual property rights may not be adequate to prevent misappropriation of our proprietary information or infringement of our intellectual property rights, and our ability to prevent such misappropriation or infringement is uncertain, particularly in countries outside of the United States. As of March 31, 2018, we had 75 issued patents, expiring generally between 2024 and 2036, 28 pending and provisional patent applications in the United States and 12 issued international patents. Even if the pending patent applications are granted, the rights granted to us may not be meaningful or provide us with any commercial advantage. For example, these patents could be opposed, contested, circumvented, designed around by our competitors or be declared invalid or unenforceable in judicial or administrative proceedings. Further, we are a participant in the IEEE standard process and, as a result, have signed letters of assurance with the IEEE stipulating that we will agree to license to other members of the IEEE, under reasonable and non-discriminatory terms, patents containing essential claims that are necessary for the implementation of the IEEE standards for 10GBASE-T as well as 2.5GBASE-T and 5GBASE-T. Essential claims include any claim the practice of which was necessary to implement a portion of the IEEE standard when, at the time of IEEE’s approval, there was no commercially and technically feasible non-infringing alternative implementation method. To date, we do not license any of our patents to other members of the IEEE; however, we may decide, or otherwise be required pursuant to such letters of assurance, to enter into such licensing agreements with respect to a significant number of our patents relating to both our 10GBASE-T PHYs and our AQrate technology in the future. The failure of our patents to adequately protect our technology might make it easier for our competitors to offer similar products or technologies. Our foreign patent protection is generally not as comprehensive as our U.S. patent protection and may not protect our intellectual property in some countries where our products are sold or may be sold in the future. Many U.S.-based companies have encountered substantial intellectual property infringement in foreign countries, including countries where we sell products. Even if foreign patents are granted, effective enforcement in foreign countries may not be available. If such an impermissible use of our intellectual property or trade secrets were to occur, our ability to sell our solutions at competitive prices may be adversely affected and our business, financial condition, results of operations and cash flows could be adversely affected.

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The legal standards relating to the validity, enforceability and scope of protection of intellectual property rights are uncertain and evolving. We cannot assure you that others will not develop or patent similar or superior technologies or solutions, or that our patents, trademarks and other intellectual property will not be challenged, invalidated or circumvented by others.

Unauthorized copying or other misappropriation of our proprietary technologies could enable third parties to benefit from our technologies without paying us for doing so, which could harm our business. Monitoring unauthorized use of our intellectual property is difficult and costly. It is possible that unauthorized use of our intellectual property may have occurred or may occur without our knowledge. We cannot assure you that the steps we have taken will prevent unauthorized use of our intellectual property. Our failure to effectively protect our intellectual property could reduce the value of our technology in licensing arrangements or in cross-licensing negotiations.

We may in the future need to initiate infringement claims or litigation in order to try to protect our intellectual property rights. Litigation, whether we are a plaintiff or a defendant, can be expensive, time-consuming and may divert the efforts of our technical staff and management, which could harm our business, whether or not such litigation results in a determination favorable to us. Litigation also puts our patents at risk of being invalidated or interpreted narrowly and our patent applications at risk of not issuing. Additionally, any enforcement of our patents or other intellectual property may provoke third parties to assert counterclaims against us. If we are unable to protect our proprietary rights or if third parties independently develop or gain access to our or similar technologies, our business, revenue, reputation and competitive position could be harmed.

We have granted the right to manufacture our custom products to our customers upon the occurrence of certain events. If our customers exercise such rights, our business and financial results would suffer.

We have granted certain of our customers, including Intel and Cisco, a worldwide, nonexclusive, nontransferable, perpetual, irrevocable right and license to manufacture or have manufactured our products that have been customized for them. These rights are exercisable only upon the occurrence of certain events, including for example, if we fail to consistently supply products in quantities ordered, we discontinue manufacture of such products or we experience an insolvency event. If these rights are triggered, and our customers choose to exercise these rights, our business and financial results would suffer.

Third parties’ assertions of infringement of their intellectual property rights could result in our having to incur significant costs and cause our operating results to suffer.

The semiconductor industry is characterized by vigorous protection and pursuit of intellectual property rights and positions, which has resulted in protracted and expensive litigation for many companies. We expect that in the future, particularly as a public company with an increased profile and visibility, we may receive communications from others alleging our infringement of patents, trade secrets or other intellectual property rights. Lawsuits resulting from such allegations could subject us to significant liability for damages and invalidate our proprietary rights. Any potential intellectual property litigation also could force us to do one or more of the following:

• stop selling solutions or using technology that contain the allegedly infringing intellectual property;

• lose the opportunity to license our technology to others or to collect royalty payments based upon successful protection and assertion of our intellectual property against others;

• incur significant legal expenses;

• pay substantial damages to the party whose intellectual property rights we may be found to be infringing;

• redesign those products that contain the allegedly infringing intellectual property; or

• attempt to obtain a license to the relevant intellectual property from third parties, which may not be available on reasonable terms or at all.

Any significant impairment of our intellectual property rights from any litigation we face could harm our business and our ability to compete.

We may face claims of intellectual property infringement, which could be time-consuming and costly to defend or settle and which could result in the loss of significant rights and harm our relationships with our customers and distributors.

The semiconductor industry, the industry in which we operate, is characterized by companies that hold patents and other intellectual property rights and vigorously pursue, protect and enforce intellectual property rights. From time to time, third parties may assert against us and our customers and distributors their patent and other intellectual property rights to technologies that are important to our business.

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Claims that our products, processes or technology infringe third-party intellectual property rights, regardless of their merit or resolution, could be costly to defend or settle and could divert the efforts and attention of our management and technical personnel.

Infringement claims also could harm our relationships with our customers or distributors and might deter future customers from doing business with us. We do not know whether we will prevail in these proceedings given the complex technical issues and inherent uncertainties in intellectual property litigation. If any future proceedings result in an adverse outcome, we could be required to:

• cease the manufacture, use or sale of the infringing products, processes or technology;

• pay substantial damages for infringement by us or our customers;

• expend significant resources to develop non-infringing products, processes or technology, which may not be successful;

• license technology from the third-party claiming infringement, which license may not be available on commercially reasonable terms, or at all;

• cross-license our technology to a competitor to resolve an infringement claim, which could weaken our ability to compete with that competitor; or

• pay substantial damages to our customers or end users to discontinue their use of or to replace infringing technology sold to them with non-infringing technology, if available.

Any of the foregoing results could adversely affect our business, financial condition and results of operations.

Any potential dispute involving our patents or other intellectual property could affect our customers, which could trigger our indemnification obligations to them and result in substantial expense to us.

In any potential dispute involving our patents or other intellectual property, our customers could also become the target of litigation. Our agreements with customers and other third parties generally include indemnification or other provisions under which we agree to indemnify or otherwise be liable to them for losses suffered or incurred as a result of claims of intellectual property infringement, damages caused by us to property or persons, or other liabilities relating to or arising from our solutions included in their products. Large indemnity payments or damage claims from contractual breach could harm our business, operating results, and financial condition. From time to time, customers require us to indemnify or otherwise be liable to them for breach of confidentiality or failure to implement adequate security measures with respect to their intellectual property and trade secrets. Although we normally contractually limit our liability with respect to such obligations, we may still incur substantial liability related to them. Any litigation against our customers could trigger technical support and indemnification obligations under some of our agreements, which could result in substantial expense to us.

In addition, other customers or end customers with whom we do not have formal agreements requiring us to indemnify them may ask us to indemnify them if a claim is made as a condition to awarding future design wins to us. Because most of our customers are larger than we are and have greater resources than we do, they may be more likely to be the target of an infringement claim by third parties than we would be, which could increase our chances of becoming involved in a future lawsuit. If any such claims were to succeed, we might be forced to pay damages on behalf of our customers that could increase our expenses, disrupt our ability to sell our solutions and reduce our revenue. Any dispute with a customer with respect to such obligations could have adverse effects on our relationship with that customer and other current and prospective customers, reduce demand for our solutions, and harm our business and results of operations. In addition to the time and expense required for us to supply support or indemnification to our customers, any such litigation could severely disrupt or shut down the business of our customers, which in turn could hurt our relations with our customers and cause the sale of our products to decrease.

Risks Related to Our Common Stock

An active trading market for our common stock may not develop or be sustained.

Prior to the closing of our initial public offering, or IPO, in November 2017, no public market for our common stock existed. We cannot assure you that an active market in our common stock will continue to develop or that it will be sustained. Accordingly, we cannot assure you of the liquidity of any trading market for shares of our common stock, your ability to sell shares of our common stock when desired, or the prices that may be obtained for shares of our common stock.

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Our stock price has been and is likely to continue to be volatile, which could cause the value of our common stock to decline.

The trading price and volume of our common stock has been and is likely to continue to be volatile and could fluctuate significantly in response to numerous factors, many of which are beyond our control, including:

• actual or anticipated fluctuations in our results of operations due to, among other things, changes in customer demand, product life cycles, pricing, ordering patterns and unforeseen operating costs;

• the financial projections we may provide to the public, any changes in these projections or our failure to meet these projections;

• failure of securities analysts to initiate or maintain coverage of our company, changes in financial estimates or ratings by any securities analysts who follow our company, or our failure to meet these estimates or the expectations of investors;

• announcements by us or our competitors of significant technical innovations, acquisitions, strategic partnerships, joint ventures or capital commitments;

• announcements by our significant customers of changes to their product offerings, business plans or strategies;

• changes in operating performance and stock market valuations of other technology companies generally, or those in the semiconductor industry;

• timing and seasonality of the end-market demand;

• cyclical fluctuations in the semiconductor market;

• price and volume fluctuations in the overall stock market from time to time, including as a result of trends in the economy as a whole;

• actual or anticipated developments in our business or our competitors’ businesses or the competitive landscape generally;

• new laws or regulations or new interpretations of existing laws, or regulations applicable to our business;

• any major change in our management;

• lawsuits threatened or filed against us; and

• other events or factors, including those resulting from war, incidents of terrorism or responses to these events.

In addition, the market for technology stocks and the stock markets in general have experienced extreme price and volume fluctuations. Stock prices of many technology companies have fluctuated in a manner unrelated or disproportionate to the operating performance of those companies. In the past, stockholders have instituted securities class action litigation following periods of market volatility. If we were to become involved in securities litigation, it could subject us to substantial costs, divert resources and the attention of management from our business and adversely affect our business, results of operations, financial condition and cash flows.

Substantial future sales of shares of our common stock could cause the market price of our common stock to decline.

The market price of our common stock could decline as a result of substantial sales of our common stock, particularly sales by our directors, executive officers and significant stockholders, a large number of shares of our common stock becoming available for sale or the perception in the market that holders of a large number of shares intend to sell their shares. Subject to the restrictions under Rule 144 under the Securities Act of 1933, as amended, or the Securities Act, approximately 25.6 million shares of our common stock became eligible for sale on May 2, 2018 upon the expiration of market stand-off provisions or lock-up agreements entered into in connection with our IPO. The market price of our common stock could decline if the holders of those shares sell them or are perceived by the market as intending to sell them.

In addition, subject to the lock-up agreements described above, the holders of up to an aggregate of approximately 21.9 million shares of our common stock have rights, subject to certain conditions, to require us to file registration statements covering their shares or to include their shares in registration statements that we may file for ourselves or our stockholders. We also registered shares of common stock that we may issue under our employee equity incentive plans which shares will be able to be sold freely in the public market upon issuance, subject to existing market stand-off provisions or lock-up agreements.

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Our directors, officers and principal stockholders beneficially own a significant percentage of our stock and will be able to exert significant control over matters subject to stockholder approval.

Our directors, officers and beneficial owners of 5% or more of our outstanding stock and their respective affiliates beneficially owned more than 50% of our outstanding stock as of March 31, 2018. These stockholders have the ability to influence us through this ownership position. These stockholders may be able to determine all matters requiring stockholder approval. For example, these stockholders will be able to control elections of directors, amendments of our organizational documents, or the approval of any merger, sale of assets or other major corporate transaction. This may prevent or discourage unsolicited acquisition proposals or offers for our common stock that you may feel are in your best interest as one of our stockholders.

If securities analysts or industry analysts downgrade our common stock, publish negative research or reports or fail to publish reports about our business, our stock price and trading volume could decline.

The trading market for our common stock will be influenced by the research and reports that industry or securities analysts publish about us, our business and our market. If one or more analysts adversely changes their recommendation regarding our stock or changes their recommendation about our competitors’ stock, our stock price would likely decline. If one or more analysts cease coverage of us or fail to regularly publish reports on us, we could lose visibility in the financial markets which in turn could cause our stock price or trading volume to decline.

We may invest or spend the proceeds from our IPO in ways with which you may not agree or in ways which may not yield a return.

Our management will have considerable discretion in the application of the net proceeds, and our stockholders will not have the opportunity, as part of their investment decision, to assess whether the proceeds are being used appropriately. The net proceeds may be used for corporate purposes that do not increase the value of our business, which could cause our stock price to decline.

We do not intend to pay dividends on our common stock so any returns will be limited to changes in the value of our common stock.

We have never declared or paid any cash dividends on our common stock. We currently anticipate that we will retain future earnings for the development, operation, and expansion of our business and do not anticipate declaring or paying any cash dividends for the foreseeable future. In addition, our ability to pay cash dividends on our common stock is prohibited by the terms of our current debt financing arrangements. Any return to stockholders will therefore be limited to the increase, if any, in our stock price, which may never occur.

We might not be able to utilize a significant portion of our net operating loss carryforwards and research and development tax credit carryforwards.

As of December 31, 2017, we had U.S. federal and state net operating loss, or NOL, carryforwards of approximately $176.6 million and U.S. federal and state research and development tax credit carryforwards of approximately $6.9 million. The U.S. federal NOL carryforwards begin to expire in 2025 and the state NOL carryforwards begin to expire in 2018. The U.S. federal research and development tax credit carryforwards begin to expire in 2026 and the state research and development tax credit carryforwards carry forward indefinitely. These net operating loss and U.S. federal tax credit carryforwards could expire unused and be unavailable to offset future income tax liabilities. In addition, under Section 382 of the Internal Revenue Code of 1986, as amended, and corresponding provisions of California state law, if a corporation undergoes an “ownership change,” which is generally defined as a greater than 50% change, by value, in its equity ownership over a three-year period, the corporation’s ability to use its pre-change net operating loss carryforwards and other pre-change tax attributes to offset its post-change income may be limited. We completed Section 382 analysis and determined ownership changes occurred in July 2005, November 2009 and August 2017, which resulted in reductions to the U.S. federal and California net operating losses of $34.9 million and $24.1 million, respectively, and U.S. federal research and development credits by $1.8 million. In addition, we may experience ownership changes in the future as a result of subsequent shifts in our stock ownership, some of which may be outside of our control. If we determine that an ownership change has occurred and our ability to use our historical net operating loss and tax credit carryforwards is materially limited, it would harm our future operating results by effectively increasing our future tax obligations.

Our actual operating results may not meet our guidance and investor expectations, which would likely cause our stock price to decline.

From time to time, we may release guidance in our earnings releases, earnings conference calls or otherwise, regarding our future performance that represent our management’s estimates as of the date of release. If given, this guidance, which will include forward-looking statements, will be based on projections prepared by our management. Projections are based upon a number of assumptions and estimates that, while presented with numerical specificity, are inherently subject to significant business, economic and competitive uncertainties and contingencies, many of which are beyond our control. The principal reason that we expect to release guidance is to provide a basis for our management to discuss our business outlook with analysts and investors. With or without our

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guidance, analysts and other investors may publish expectations regarding our business, financial performance and results of operations. We do not accept any responsibility for any projections or reports published by any such third parties. Guidance is necessarily speculative in nature, and it can be expected that some or all of the assumptions of the guidance furnished by us will not materialize or will vary significantly from actual results. If our actual performance does not meet or exceed our guidance or investor expectations, the trading price of our common stock is likely to decline.

We may not be able to effectively or efficiently manage or transition to a public company.

We completed our IPO in November 2017 and anticipate to incurring significant legal, accounting and other expenses that we did not incur before as a private company. Our management team and other personnel will need to devote a substantial amount of time to, and we may not effectively or efficiently manage, our transition into a public company. We intend to hire additional accounting and finance personnel with system implementation experience and expertise regarding compliance with the Sarbanes-Oxley Act of 2002, or the Sarbanes-Oxley Act. We may be unable to locate and hire qualified professionals with requisite technical and public company experience when and as needed. In addition, new employees will require time and training to learn our business and operating processes and procedures. If we are unable to recruit and retain additional finance personnel or if our finance and accounting team is unable for any reason to respond adequately to the increased demands that will result from being a public company, the quality and timeliness of our financial reporting may suffer, which could result in the identification of material weaknesses in our internal controls. Any consequences resulting from inaccuracies or delays in our reported financial statements could cause our stock price to decline and could harm our business, operating results and financial condition.

If we fail to strengthen our financial reporting systems, infrastructure and internal control over financial reporting to meet the demands that will be placed upon us as a public company, including the requirements of the Sarbanes-Oxley Act, we may be unable to report our financial results timely and accurately and prevent fraud. We expect to incur significant expense and devote substantial management effort toward ensuring compliance with Section 404 of the Sarbanes-Oxley Act, or Section 404.

We implemented an enterprise resource planning, or ERP, system. This required significant investment of capital and human resources, the re-engineering of many processes of our business and the attention of many employees who would otherwise be focused on other aspects of our business. Any disruptions or deficiencies in the design and implementation of the improvements of our new ERP system could result in potentially much higher costs than we had anticipated and could adversely affect our ability to develop and launch solutions, fulfill contractual obligations, file reports with the SEC in a timely manner, otherwise operate our business or otherwise impact our controls environment. Any of these consequences could have an adverse effect on our results of operations and financial condition.

As a public company, we will become subject to additional regulatory compliance requirements, including Section 404, and if we fail to maintain an effective system of internal controls, we may not be able to accurately report our financial results or prevent fraud.

Rules and regulations such as the Sarbanes-Oxley Act have increased our legal and finance compliance costs and made some activities more time consuming and costly. For example, Section 404 requires that our management report on, and our independent auditors attest to, the effectiveness of our internal control structure and procedures for financial reporting. However, our auditors will not be required to formally attest to the effectiveness of our internal control over financial reporting pursuant to Section 404 until we are no longer an “emerging growth company,” as defined in the JOBS Act. Effective internal controls are necessary for us to provide reliable financial reports and effectively prevent fraud. Section 404 compliance may divert internal resources and will take a significant amount of time and effort to complete. We may not be able to successfully complete the procedures and certification and attestation requirements of Section 404 by the time we will be required to do so. Implementing these changes may take a significant amount of time and may require specific compliance training of our personnel. In the future, we may discover areas of our internal controls that need improvement. If our auditors or we discover a material weakness or significant deficiency, the disclosure of that fact, even if quickly remedied, could reduce the market’s confidence in our consolidated financial statements and harm our stock price. Any inability to provide reliable financial reports or prevent fraud would harm our business. We may not be able to effectively and timely implement necessary control changes and employee training to ensure continued compliance with the Sarbanes-Oxley Act and other regulatory and reporting requirements. If we fail to successfully complete the procedures and certification and attestation requirements of Section 404, or if in the future our Chief Executive Officer, Chief Financial Officer or independent registered public accounting firm determines that our internal controls over financial reporting are not effective as defined under Section 404, we could be subject to investigations or sanctions by the New York Stock Exchange, the SEC or other regulatory authorities. Furthermore, investor perceptions of our company may suffer, and this could cause a decline in the market price of our shares of common stock. We cannot assure you that we will be able to fully comply with the requirements of the Sarbanes-Oxley Act or that management or, when applicable, our auditors will conclude that our internal controls are effective in future periods. Irrespective of compliance with Section 404, any failure of our internal controls could have a material adverse effect on our stated results of operations and harm our reputation.

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Anti-takeover provisions in our charter documents and under Delaware law could make an acquisition of our company more difficult, limit attempts by our stockholders to replace or remove our current management and limit the market price of our common stock.

Provisions in our amended and restated certificate of incorporation and bylaws may have the effect of delaying or preventing a change of control or changes in our management. Our amended and restated certificate of incorporation and bylaws include provisions that:

• authorize our board of directors to issue, without further action by the stockholders, shares of undesignated preferred stock with terms, rights, and preferences determined by our board of directors that may be senior to our common stock;

• require that any action to be taken by our stockholders be effected at a duly called annual or special meeting and not by written consent;

• specify that special meetings of our stockholders can be called only by our board of directors, the Chairman of our board of directors, or our Chief Executive Officer;

• establish an advance notice procedure for stockholder proposals to be brought before an annual meeting, including proposed nominations of persons for election to our board of directors;

• establish that our board of directors is divided into three classes, with each class serving three-year staggered terms;

• prohibit cumulative voting in the election of directors;

• provide that our directors may be removed only for cause;

• provide that vacancies on our board of directors may be filled by a majority of directors then in office, even if less than a quorum; and

• require the approval of our board of directors or the holders of at least 66 2/3% of our outstanding shares of capital stock to amend our bylaws and certain provisions of our certificate of incorporation.

These provisions may frustrate or prevent any attempts by our stockholders to replace or remove our current management by making it more difficult for stockholders to replace members of our board of directors, which is responsible for appointing the members of our management. In addition, because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware General Corporation Law, which generally prohibits a Delaware corporation from engaging in any of a broad range of business combinations with any interested stockholder for a period of three years following the date on which the stockholder became an interested stockholder. Any delay or prevention of a change of control transaction or changes in our management could cause our stock price to decline.

Our charter documents designate the Court of Chancery of the State of Delaware as the sole and exclusive forum for certain types of actions and proceedings that may be initiated by our stockholders, which could limit our stockholders’ ability to obtain what they believe to be a favorable judicial forum for disputes with us or our directors, officers, or other employees.

Our amended and restated certificate of incorporation and bylaws provide that, unless we consent in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware shall be the sole and exclusive forum for (1) any derivative action or proceeding brought on our behalf, (2) any action asserting a claim of breach of a fiduciary duty owed by any of our directors, officers or other employees to us or our stockholders, (3) any action asserting a claim arising pursuant to any provision of the Delaware General Corporation Law, our amended and restated certificate of incorporation or our bylaws or (4) any action asserting a claim against us governed by the internal affairs doctrine. Any person or entity purchasing or otherwise acquiring any interest in shares of our capital stock shall be deemed to have notice of and consented to the provisions of our certificate of incorporation described above. This choice of forum provision may limit a stockholder’s ability to bring a claim in a judicial forum that it finds favorable for disputes with us or our directors, officers or other employees, which may discourage such lawsuits against us and our directors, officers, and other employees. Alternatively, if a court were to find these provisions of our amended and restated certificate of incorporation inapplicable to, or unenforceable in respect of, one or more of the specified types of actions or proceedings, we may incur additional costs associated with resolving such matters in other jurisdictions, which could adversely affect our business, financial condition or results of operations and result in a diversion of the time and resources of our management and board of directors.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Recent Sales of Unregistered Equity Securities

None

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Issuer Purchases of Equity Securities

From January 1, 2018 to March 31, 2018, we repurchased 3,626 shares of common stock for approximately $13,000 from employees pursuant to our option to repurchase unvested shares of common stock upon such employee’s termination.

Use of Proceeds

On November 7, 2017, we completed our IPO of 7,840,700 shares of our common stock at an offering price of $9.00 per share, including 1,022,700 shares pursuant to the underwriters’ over-allotment option to purchase additional shares of our common stock.  All shares issued and sold in our IPO were registered under the Securities Act pursuant to a Registration Statement on Form S-1 (File No.333-220871), which was declared effective by the SEC on November 2, 2017.

Morgan Stanley & Co. LLC, Barclays Capital Inc. and Deutsche Bank Securities Inc. acted as joint book-running managers for our IPO. Needham & Company LLC and Raymond James & Associates, Inc. acted as co-managers. The offering commenced on October 23, 2017 and, following the sale of the shares upon the closing of the IPO on November 7, 2017, the offer terminated. Net proceeds to us were $63.3 million after deducting underwriters’ discounts and commissions of $4.9 million and deducting estimated offering expenses payable of approximately $2.3 million. No payments were made by us to directors, officers or persons owning 10% or more of our common stock or to their associates, or to our affiliates.

We have used the net proceeds to us from our IPO as follows: (i) to pay fees and expenses of approximately $2.5 million in connection with our IPO, (ii) to repay in full the outstanding indebtedness under our loan with Pinnacle Ventures L.L.C. of approximately $9.2 million, including accrued interest and fees; (iii) to pay and terminate the line of credit with Hercules of approximately $0.3 million and (iv) approximately $0.5 million for other corporate purposes, including insurance premiums for being a publicly traded company.

(c) Issuer Purchases of Equity Securities

Not applicable.

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Item 6. Exhibits

Exhibit		Incorporation By Reference
Number	Description	Form	SEC File No.	Exhibit	Filing Date
3.1	Amended and Restated Certificate of Incorporation	8-K	001-38270	3.1	November 9, 2017
3.2	Amended and Restated Bylaws	S-1	333-220871	3.3	October 6, 2017
4.1	Form of Common Stock Certificate of the Registrant.	S-1	333-220871	4.1	October 6, 2017
31.1*	Certification of Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2*	Certification of the Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1**	Certification of the Principal Executive Officer and Principal Financial Officer pursuant to the 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS***	XBRL Instance 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

+ Indicates a management contract or compensatory plan or arrangement.

* Filed herewith.

** This certification is not deemed filed with the Securities and Exchange Commission and is not to be incorporated by reference into any filing of the Registrant under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date of this Form 10-Q, irrespective of any general incorporation language contained in such filing.

*** Submitted electronically with this Report.

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SIGNATURES

Pursuant to the requirements 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.

	Aquantia Corp.
Date:   May 9, 2018	By:	/s/ Mark Voll
		Mark Voll
		Chief Financial Officer (On behalf of Registrant and as Principal Financial and Accounting Officer)

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EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Faraj Aalaei, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Aquantia Corp. (the “registrant”) for the fiscal quarter ended March 31, 2018;

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 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)) 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) 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

(c) 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 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 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:

(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.

Date:   May 9, 2018	By:	/s/ Faraj Aalaei
		Faraj Aalaei
		Chairman, President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Mark Voll, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Aquantia Corp. (the “registrant”) for the fiscal quarter ended March 31, 2018;

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 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)) 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) 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

(c) 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 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 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:

(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.

Date:   May 9, 2018	By:	/s/ Mark Voll
		Mark Voll
		Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The undersigned, as Principal Executive Officer and as Principal Financial Officer of Aquantia Corp. (the “Company”), respectively, certify that, to the best of their knowledge and belief, the Company’s quarterly report on Form 10-Q for the quarter ended March 31, 2018, which accompanies this certification fully complies with the requirements of Section 13(a) and 15(d) of the Securities Exchange Act of 1934, as amended, and the information contained in the Company’s quarterly report on Form 10-Q for the quarter ended March 31, 2018 fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods indicated therein. The foregoing certifications are made pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. 1350) and shall not be relied upon for any other purpose.

/s/ Faraj Aalaei

Faraj Aalaei

Chairman, President and Chief Executive Officer

(Principal Executive Officer)

May 9, 2018

/s/ Mark Voll

Mark Voll

Chief Financial Officer

(Principal Financial and Accounting Officer)

May 9, 2018

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to Aquantia Corp. and will be retained by Aquantia Corp. and furnished to the Securities and Exchange Commission or its staff upon request.

This certification accompanies the Form 10-Q to which it relates, is not deemed filed with the Securities and Exchange Commission and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended (whether made before or after the date of the Form 10-Q), irrespective of any general incorporation language contained in such filing.

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Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	Apr. 30, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Trading Symbol	AQ
Entity Registrant Name	AQUANTIA CORP
Entity Central Index Key	0001316016
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		33,536,799

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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 4,606	$ 8,040
Short-term investments	58,435	48,362
Accounts receivable	10,417	15,012
Inventories	16,156	18,469
Prepaid expenses and other current assets	3,466	5,623
Total current assets	93,080	95,506
Property and equipment, net	9,447	9,973
Intangible assets, net	4,354	4,556
Other assets	535	331
Total assets	107,416	110,366
Current liabilities:
Accounts payable	5,792	7,059
Accrued liabilities	8,039	9,217
Total current liabilities	13,831	16,276
Other long-term liabilities	3,179	3,176
Total liabilities	17,010	19,452
Commitments and contingencies (Note 6)
Stockholders’ equity:
Additional paid-in capital	289,675	288,719
Accumulated other comprehensive loss	(227)	(96)
Accumulated deficit	(199,042)	(197,709)
Total stockholders’ equity	90,406	90,914
Total liabilities and stockholders’ equity	$ 107,416	$ 110,366

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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2018	Dec. 31, 2017
Statement Of Financial Position [Abstract]
Common stock, par value	$ 0.00001	$ 0.00001
Common stock, shares authorized	400,000,000	400,000,000
Common stock, shares issued	33,536,799	33,523,683
Common stock, shares outstanding	33,536,799	33,523,683

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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Revenue	$ 28,358	$ 23,643
Cost of revenue	12,241	10,047
Gross profit	16,117	13,596
Operating expenses:
Research and development	12,574	10,407
Sales and marketing	2,287	1,634
General and administrative	2,997	2,227
Total operating expenses	17,858	14,268
Loss from operations	(1,741)	(672)
Other income (expense):
Interest expense		(559)
Change in fair value of convertible preferred stock warrant liability		(660)
Other income, net	248	17
Total other income (expense)	248	(1,202)
Loss before income tax expense	(1,493)	(1,874)
Provision for (benefit from) income taxes	(125)	151
Net loss	$ (1,368)	$ (2,025)
Net loss per share, basic and diluted	$ (0.04)	$ (0.45)
Weighted-average shares used to compute net loss per share, basic and diluted	33,495	4,477
Comprehensive income:
Net loss	$ (1,368)	$ (2,025)
Other comprehensive income (loss), net of tax:
Unrealized gains and losses - short-term investments	(131)
Comprehensive loss	$ (1,499)	$ (2,025)

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities
Net loss	$ (1,368)	$ (2,025)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	1,385	1,033
Stock-based compensation expense	978	242
Change in fair value of convertible preferred stock warrant liability		660
Amortization of debt discount		105
Non-cash interest expense related to debt costs		81
Changes in operating assets and liabilities:
Accounts receivable	4,595	(2,226)
Inventories	2,313	(579)
Prepaid expenses and other assets	1,953	(838)
Accounts payable	(1,193)	(563)
Accrued and other liabilities	(860)	(1,236)
Net cash provided by (used in) operating activities	7,803	(5,346)
Cash flows from investing activities
Purchases of property and equipment	(731)	(905)
Proceeds from sales and maturity of short-term investments	5,400
Purchases of short-term investments	(15,604)
Net cash used in investing activities	(10,935)	(905)
Cash flows from financing activities
Repayments on short and long-term borrowings		(2,525)
Proceeds from exercise of stock options and preferred stock warrants, net		225
Purchases of IP licenses	(26)	(65)
Payment of costs related to initial public offering	(276)	(68)
Net cash used in financing activities	(302)	(2,433)
Net decrease in cash and cash equivalents	(3,434)	(8,684)
Cash and cash equivalents at beginning of period	8,040	28,893
Cash and cash equivalents at end of period	4,606	20,209
Non-cash financing and investing transactions
Cashless exercises of warrants, net of assumed proceeds from shares	550
Unpaid costs related to initial public offering		396
Property and equipment received and accrued	$ 345	$ 107

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Organization, Description of Business and Basis for Presentation

3 Months Ended

Mar. 31, 2018

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Organization, Description of Business and Basis for Presentation

1. Organization, Description of Business and Basis for Presentation

Organization—Aquantia Corp. (together with its subsidiaries, the “Company”) was incorporated in Delaware on January 27, 2004. The Company is a leader in the design, development and marketing of advanced high-speed communications integrated circuits, or ICs, for Ethernet connectivity in the data center, enterprise infrastructure, access and automotive markets.

Initial Public Offering—On November 7, 2017, the Company completed its initial public offering (“IPO”) of 7,840,700 shares of its common stock at the offering price of $9.00 per share, including 1,022,700 shares pursuant to the underwriters’ option to purchase additional shares of the Company’s common stock, resulting in net proceeds to the Company of $65.6 million after deducting underwriters' discounts and commissions of $4.9 million, but before deducting total offering expenses of approximately $5.7 million which were reclassified to additional paid-in capital upon completion of the IPO. Immediately prior to the closing of the IPO, all outstanding shares of the Company’s convertible preferred stock automatically converted into shares of its common stock and the Company’s convertible preferred stock warrants automatically converted into warrants to purchase common stock.  The Company used $9.2 million and $0.3 million of the IPO proceeds, respectively, to repay the outstanding indebtedness under the Company’s loan from Pinnacle Ventures, L.L.C. and the termination fee for the line of credit from Hercules in 2017, respectively.

Basis of Presentation and Principles of Consolidation—The accompanying unaudited condensed consolidated financial statements included herein have been prepared by us in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”), for interim financial information and the rules and regulations of the Securities and Exchange Commission (“SEC”). In the opinion of management, normal recurring adjustments considered necessary for a fair presentation have been reflected in these condensed consolidated financial statements.  Certain information and note disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations.

The condensed consolidated balance sheet as of December 31, 2017 has been derived from the audited financial statements for the fiscal year then ended included in the Company’s Annual Report on Form 10-K filed with the SEC on March 7, 2018 (the “2017 Annual Report on Form 10-K”), but does not include all of the information and notes required by U.S. GAAP for complete consolidated financial statements. The financial information included in this Quarterly Report on Form 10-Q should be read in conjunction with the audited consolidated financial statements as of and for the fiscal year ended December 31, 2017 and the related notes thereto included in the 2017 Annual Report on Form 10-Q.

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Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2018

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2. Summary of Significant Accounting Policies

During the three months ended March 31, 2018, there have been no changes in our significant accounting policies as described in the Company’s 2017Annual Report on Form 10-K, except as discussed below:

Recent Accounting Pronouncements—

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The new guidance requires entities to recognize assets and liabilities for leases with terms of more than 12 months and additional disclosures to better understand the amount, timing and uncertainty of cash flows arising from leases. The guidance is effective for financial statements issued for fiscal years beginning after December 15, 2018. Early adoption is permitted. Management has concluded that it will not early adopt this standard and is currently evaluating the impact of this new standard on the Company’s condensed consolidated financial statements.

Adopted

Revenue Recognition— In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers” related to the recognition and reporting of revenue that establishes a comprehensive new revenue recognition model designed to depict the transfer of goods or services to a customer in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services. The guidance allows for the use of either the full or modified retrospective transition method. This new standard was effective on January 1, 2018.

Under the new standard, the Company used the modified retrospective method and recognizes all revenue on sales to distributors upon shipment and transfer of control (known as “sell-in” revenue recognition), rather than deferring recognition until distributor report that they have sold the product to their customers (known as “sell-through” revenue recognition).  This change in methodology will cause a shift in the timing of when revenue is recognized for this class of customers comparing to prior periods.  The Company provides some of its distributors rights that would result in a deferral of revenue under the revenue standards before the adoption. Accordingly, the Company recorded $0.1 million of deferred revenue balance to retained earnings upon adoption of this new standard on the Company’s condensed consolidated financial statements. As a result of the adoption, the Company revised its accounting policy for revenue recognition as detailed below:

Revenue Recognition (applicable for periods commencing on or after January 1, 2018):

Product revenues consist of sales to customers which are mainly comprised of end customers, their manufacturing subcontractors, and distributors. Revenue is recognized after the Company (a) identifies the contract with a customer, (b) identifies the performance obligations in the contract, (c) determines the transaction price, (d) allocates the transaction price to the performance obligations in the contract, and (e) satisfies the performance obligation when the control of products is transferred to the customer.

The Company considers the purchase orders, which in some cases are governed by master sales agreements, to be the contract with its customers.  In evaluating the existence of the contract, the Company considers various factors relative to the contract including the customer’s ability to pay amounts due under the contract.  The Company is obligated to deliver a fixed number of products to its customers, each of which is distinct, and have been separately identified to be the performance obligations. The Company generally provides an assurance warranty that its products will substantially conform to the published specifications for twelve months from the date of shipment. The Company has not provided services in addition to the standard warranty. As such, the Company does not consider activities related to such warranty, if any, to be a separate performance obligation.

In determining the transaction price, the Company considers the variability of the amount due under the contract including amounts subject to refund or adjustment when determining the net consideration to which the Company expects to be entitled within the contract.  As the Company’s standard payment terms are less than one year, the Company has elected the practical expedient under the accounting guidance and does not assess whether the contract has a significant financing component.  The Company allocates revenue to each product based on their relative standalone selling price.  Frequently, the Company receives orders for products to be delivered over multiple dates that may extend across several reporting periods. The Company invoices for each delivery upon shipment and recognizes revenues for each distinct product delivered, assuming transfer of control has occurred. As scheduled delivery dates are within one year, under the optional exemption revenues allocated to future shipments of partially completed contracts are not disclosed.

Sales to certain of end customers include limited rebates.  The Company estimates these rebates, using historical volumes of such rebates, at the time revenue is recognized. Such rebates were not significant in any of the periods presented, and the differences between the actual amount of such rebates and our estimates also were not significant.

Sales to most of our distributors are made under contracts that allow for pricing credits upon shipment to the end customer and rights of return for on hand inventory at the distributor.  Under the accounting guidance, revenue is recognized at the point of transfer of control to the distributor, which typically occurs at the point of shipment.  The Company adjusts the transaction price for any unprocessed claims and for future estimated pricing credits which is recorded in accrued liabilities on our condensed consolidated balance sheets.  The adjustments for these estimates are recorded as a reduction to revenue in the same period when the related revenue is recorded and is calculated based on an analysis of the historical actual claims received, both in aggregate and at a distributor level to the extent that it is probable that a significant future reversal of revenue will not occur.  Historically, adjustments for actual pricing credits and product returns have not been significantly differed from the amounts estimated by the Company. As of March 31, 2108, the Company has recorded an accrued liability of $0.4 million relative to the above adjustments to transaction price.

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Balance Sheet Components

3 Months Ended

Mar. 31, 2018

Balance Sheets Components [Abstract]

Balance Sheet Components

3. Balance Sheet Components

Inventories consisted of the following (in thousands):

	As of March 31,		As of December 31,
	2018		2017
Processed wafers	$	1,960	$	3,523
Work in process		6,473		10,118
Finished goods		7,723		4,828
Total inventories	$	16,156	$	18,469

Prepaid expenses and other current assets consisted of the following (in thousands):

	As of March 31,		As of December 31,
	2018		2017
Processed wafer prepayments	$	1,639	$	3,443
Electronic design automation tools		389		519
Other prepaid and other current assets		1,438		1,661
Total other prepaid and other current assets	$	3,466	$	5,623

Property and equipment, net consisted of the following (in thousands):

		As of March 31,			As of December 31,
	Estimated Useful Lives	2018			2017
Machinery and equipment	2-3 years	$	13,863		$	13,268
Production masks	4 years		5,401			5,401
Software and computer equipment	3 years		3,881			3,820
Leasehold improvements	Shorter of estimated life of asset or remaining lease term		539			539
Office furniture and fixtures	3 years		114			114
Total property and equipment			23,798			23,142
Less: accumulated depreciation and    amortization			(14,351	)		(13,169	)
Property and equipment, net		$	9,447		$	9,973

Depreciation and amortization of property and equipment totaled $1.2 million and $0.8 million for the three months ended March 31, 2018 and 2017, respectively.

Intangible assets, net were carried at cost, less accumulated amortization. Intangible assets were as follows (in thousands):

		As of March 31,			As of December 31,
	Estimated Useful Lives	2018			2017
IP license	7 years	$	5,416		$	5,416
Patents	10-12 years		348			348
Total intangible assets			5,764			5,764
Less: accumulated amortization			(1,410	)		(1,208	)
Intangible assets, net		$	4,354		$	4,556

Amortization of intangible assets totaled $0.2 million and $0.2 million for the three months ended March 31, 2018 and 2017, respectively, respectively.

Amortization expense related to amortizable intangibles in future periods as of March 31, 2018 is expected to be as follows (in thousands):

2018 (remaining)	$	606
2019		808
2020		808
2021		808
2022 and thereafter		1,324
Total	$	4,354

Accrued liabilities consisted of the following (in thousands):

	As of March 31,		As of December 31,
	2018		2017
Accrued compensation and related benefits	$	4,586	$	5,242
Customer Deposit		852		1,154
Accrued IP License		316		343
Accrued technical consulting and professional services		231		259
Accrued royalty, rebates and commission		205		287
Other accrued liabilities		1,849		1,932
Total accrued liabilities	$	8,039	$	9,217

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Financial Instruments

3 Months Ended

Mar. 31, 2018

Investments All Other Investments [Abstract]

Financial Instruments

4. Financial Instruments

The following is a summary of financial instruments (in thousands):

	As of March 31, 2018
			Gross		Gross
			Unrealized		Unrealized			Estimated Fair
	Cost		Gains		Losses			Values
Available-for sale securities
Commercial Paper	$	18,412	$	—	$	(23	)	$	18,389
Money market funds		185		—		—			185
Corporate bonds		39,749		—		(199	)		39,550
U.S. government securities		2,493		—		(5	)		2,488
Total available-for-sale securities	$	60,839	$	—	$	(227	)	$	60,612
Reported in:
Cash and cash equivalents								$	2,177
Short-term investments									58,435
Total available-for-sale securities								$	60,612

	As of December 31, 2017
			Gross		Gross
			Unrealized		Unrealized			Estimated Fair
	Cost		Gains		Losses			Values
Available-for sale securities
Commercial paper	$	13,927	$	—	$	(11	)	$	13,916
Money market funds		1,269		—		—			1,269
Corporate bonds		36,534		—		(81	)		36,453
U.S. government securities		2,489		—		(4	)		2,485
Total available-for-sale securities	$	54,219	$	—	$	(96	)	$	54,123
Reported in:
Cash and cash equivalents								$	5,761
Short-term investments									48,362
Total available-for-sale securities								$	54,123

The contractual maturities of available-for-sale securities are presented in the following table (in thousands):

	As of March 31, 2018
	Amortized Cost Basis		Estimated Fair Value
Due in one year or less	$	46,314	$	46,188
Due between one and five years		14,525		14,424
	$	60,839	$	60,612

Gross realized gains and gross realized losses on sales of available-for-sale securities for the three months ended March 31, 2018 were not significant.As of March 31, 2018 and December 31, 2017, there were no individual securities that had been in a continuous loss position for 12 months or longer.

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Fair Value Measurements

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurements

5. Fair Value Measurements

The Company defines fair value as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities which are required to be recorded at fair value, the Company considers the principal or most advantageous market in which to transact and the market-based risk. The Company applies fair value accounting for all financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis. Level 1 liabilities consist of accounts payable, accrued expense and long-term debt. The carrying amounts of accounts receivable, prepaid expenses, accounts payable and accrued liabilities approximate fair value due to the short-term nature of these items. Based on the borrowing rates currently available to the Company for debt with similar terms, the carrying value of the term debt approximates fair value as well. The Company categorizes assets and liabilities recorded at fair value based upon the level of judgment associated with inputs used to measure their fair value. The categories are as follows:

Level 1—Observable inputs, such as quoted prices in active markets for identical, unrestricted assets, or liabilities.

Level 2—Quoted prices for similar assets or liabilities, or inputs other than quoted prices in active markets that are observable either directly or indirectly.

Level 3—Unobservable inputs in which there is little or no market data, which require the Company to develop its own assumptions about the assumptions market participants would use in pricing the asset or liability. Valuation techniques include use of option-pricing models, discounted cash flows models, and similar techniques.

The hierarchy requires the Company to use observable market data, when available, and to minimize the use of unobservable inputs when determining fair value. The following tables represent the Company’s financial assets and financial liabilities measured at fair value on a recurring basis categorized by the fair value hierarchy as of March 31, 2018 and December 31, 2017 (in thousands):

	As of March 31, 2018
	Level 1		Level 2		Level 3		Total
Financial asset— available-for-sales securities
Money market funds	$	185	$	—	$	—	$	185
Commercial Paper		—		18,389		—		18,389
Corporate bonds		—		39,550		—		39,550
U.S. government securities		—		2,488		—		2,488
Total financial asset—available-for-sales securities	$	185	$	60,427	$	—	$	60,612

	As of December 31, 2017
	Level 1		Level 2		Level 3		Total
Financial asset— available-for-sales securities
Money market funds	$	1,269	$	—	$	—	$	1,269
Commercial paper		—		13,916		—		13,916
Corporate bonds		—		36,453		—		36,453
U.S. government securities		—		2,485		—		2,485
Total financial asset—available-for-sales securities	$	1,269	$	52,854	$	—	$	54,123

There were no transfers within the hierarchy during the three months ended March 31, 2018 and 2017.

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2018

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

6. Commitments and Contingencies

Lease and purchase obligations—The Company leases office and research facilities under operating leases for its U.S. headquarters and international locations that expire at various dates through March 2024. Under any lease agreement that contains escalating rent provisions, lease expense is recorded on a straight-line basis over the lease term. Rent expense for the three months ended March 31, 2018 and 2017 was $0.3 million and $0.2 million, respectively. In addition, the Company has purchase obligations which included agreements and issued purchase orders containing non-cancelable payment terms to purchase goods and services.

As of March 31, 2018, future minimum operating lease payments and purchase obligations are as follows (in thousands):

					Total
	Operating		Purchase		Lease and Purchase
	Leases		Obligations		Obligations
2018 (remaining)	$	644	$	10,494	$	11,138
2019		1,488		2,289		3,777
2020		1,535		1,549		3,084
2021		2,034		—		2,034
2022 and thereafter		4,299		—		4,299
Total	$	10,000	$	14,332	$	24,332

Litigation—The Company accrues for contingencies when it believes that a loss is probable and that it can reasonably estimate the amount of any such loss and the Company has made an assessment of the probability of incurring any such losses and whether or not those losses are estimable.

Although the Company is not currently subject to any litigation, and the Company is not aware of any litigation currently threatened against it, the Company may be subject to legal proceedings, claims and litigation, including intellectual property litigation, arising in the ordinary course of business. Such matters are subject to many uncertainties and outcomes and are not predictable with assurance. The Company accrues amounts that it believes are adequate to address any liabilities related to legal proceedings and other loss contingencies that it believes will result in a probable loss that is reasonably estimable.

To the extent there is a reasonable possibility that a loss exceeding amounts already recognized may be incurred and the amount of such additional loss would be material, the Company will either disclose the estimated additional loss or state that such an estimate cannot be made. The Company does not currently believe that it is reasonably possible that losses in connection with litigation arising in the ordinary course of business would be material.

Indemnification—Under the indemnification provisions of the Company’s standard sales-related contracts, the Company agrees to defend its customers against third-party claims asserting infringement of certain intellectual property rights, which may include patents, copyrights, trademarks, or trade secrets, and to pay judgments entered on such claims. Certain agreements include indemnification provisions that could potentially expose the Company to losses in excess of the amount received under the agreement. In addition, the Company indemnifies its directors and certain of its officers while they are serving in good faith in such capacities. To date, the Company has not incurred costs to defend lawsuits or settle claims related to these indemnification agreements. As of March 31, 2018 and December 31, 2017, no liability associated with such indemnifications had been recorded.

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Shareholders' Equity and Share-based Compensation

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Shareholders' Equity and Share-based Compensation

7. Shareholder’s Equity and Share-based Compensation

The Company’s certificate of incorporation, as of March 31, 2018 and December 31, 2017, authorized the Company to issue up to 400,000,000 shares of common stock and 10,000,000 shares of preferred stock, each at $0.00001 par value per share, respectively.

As of March 31, 2018, no preferred stock was outstanding. Each share of common stock is entitled to one vote. The holders of common stock are also entitled to receive dividends out of funds legally available. No dividends have been declared to date.

2015 Equity Incentive Plan and 2004 Equity Incentive Plan

Under the Company’s 2015 Equity Incentive Plan and 2004 Equity Incentive Plan, shares of common stock were reserved for the issuance of incentive stock options (“ISO”); nonstatutory stock options (“NSO”); or the sales of restricted common stock to employees, officers, directors, and consultants of the Company. The exercise price of an option is determined by the board of directors when the option is granted and may not be less than 85% of the fair market value of the shares on the date of grant, provided that the exercise price of an ISO is not less than 100% of the fair market value of the shares on the date of grant and the exercise price of any option granted to a 10% stockholder is not less than 110% of the fair market value of the shares on the date of grant. ISOs granted under the Plan generally vest 25% after the completion of 12 months of service and the balance in equal monthly installments over the next 36 months of service and expire 10 years from the grant date. NSOs vest as per the specific agreement and expire 10 years from the date of grant. The Plan allows for early exercise of options prior to full vesting as determined by the board of directors and set forth in the stock option agreements governing such options. Exercises of unvested options are subject to repurchase by the Company at not less than the original exercise price upon termination of employment.

2017 Equity Incentive Plan

In November 2017, the Company adopted the 2017 Equity Incentive Plan, or 2017 Plan, and all shares reserved for grant under the 2015 Equity Incentive Plan and 2004 Equity Incentive Plan were cancelled. The 2017 Plan had 1,618,735 common shares reserved, plus any shares subject to outstanding stock options or other stock awards that were granted under the 2015 Equity Incentive Plan and 2004 Equity Incentive Plan that were forfeited, terminate, expire or are otherwise not issued. In addition, the shares reserved under the 2017 Plan will automatically increase on the first day of each calendar year, beginning on January 1, 2018 and ending on January 1, 2027, by an amount equal to 5% of the total number of shares of the Company’s capital stock outstanding on the last day of the calendar month before the date of the automatic increase, or a lesser number of shares determined by the board ofdirectors prior to the date of such automatic increase. The 2017 Plan provides for the grant of common stock awards, including incentive stock options, non-statutory stock options, stock appreciation rights, restricted stock and restricted stock units, performance units and performance shares to employees, directors, and consultants of the Company. All granted shares that are canceled, forfeited or expired are returned to the 2017 Plan and are available for grant in conjunction with the issuance of new equity awards. Stock options may be granted at an exercise price per share not less than 100% of the fair market value at the date of grant. If a stock option is granted to a 10% stockholder, then the exercise price per share must not be less than 110% of the fair market value per share of common stock on the grant date. Options granted are exercisable over a maximum term of 10 years from the date of grant and generally vest over a period of four years. As of March 31, 2018, 1,698,413 shares are available for grant.

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Common Stock

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Common Stock

8. Common Stock

Stock Options

Activity under the Company’s stock option plan is set forth below:

						Weighted-
				Weighted		Average
				Average		Remaining		Aggregate
				Exercise		Contractual		Intrinsic Value
	Number of Shares			Price		Term (Years)		(in thousands)
Balance—December 31, 2016		2,906,596		$	3.20		8.1	$	4,941
Granted		1,320,382		$	7.08
Exercised		(388,621	)	$	3.28
Canceled		(104,813	)	$	4.53
Balance—December 31, 2017		3,733,544		$	4.53		7.9	$	25,386
Granted		—		$	—
Exercised		(3,466	)	$	3.68
Canceled		(92,830	)	$	5.64
Balance—March 31, 2018		3,637,248		$	4.47		7.3	$	1,899
Vested and exercisable—March 31, 2018		1,852,907		$	3.10		6.0	$	23,353
Vested and exercisable—December 31, 2017		1,648,917		$	2.89		6.7	$	13,924

As of March 31, 2018, approximately $4.6 million of unrecognized stock compensation costs related to awards were expected to be recognized over a weighted-average period of 2.6 years. As of December 31, 2017, approximately $4.8 million of unrecognized stock compensation costs related to awards were expected to be recognized over a weighted-average period of 3.1 years.

The aggregate intrinsic value of options exercised during the three months ended March 31, 2018 was $0.1 million. The aggregate intrinsic value of options exercised during the year ended December 31, 2017 was $1.6 million.

There were no options granted during the three months ended March 31, 2018. The weighted-average grant-date fair value of options granted during the year ended December 31, 2017 was $2.94 per share.

The calculated fair value of option grants was estimated using the Black-Scholes model with the following assumptions for which options were granted:

	Three Months Ended
	March 31,
	2018	2017
Risk-free interest rate	—	1.97% - 2.40%
Expected term	—	6.1 - 9.6 yrs
Expected dividends	—	0%
Volatility	—	30%

Restricted Stock Unit Awards

The Company grants restricted stock units (RSU) to employees under the 2017 Plan. RSUs granted typically vest ratably over a four-year period and are converted into shares of the Company’s common stock upon vesting on a one-for-one basis subject to the employee’s continued service to the Company over that period. The fair value of RSUs is determined using the fair value of the Company’s common stock on the date of the grant, reduced by the discounted present value of dividends expected to be declared before the awards vest. Compensation expense is recognized on a straight-line basis over the requisite service period of each grant. Each RSU award granted from the 2017 Plan will reduce the number of shares available for issuance under the 2017 Plan by one share.

For the three months ended March 31, 2018, unamortized compensation expense related to RSU was approximately $1.9 million, to be recognized over 2.5 years. For the year ended December 31, 2017, unamortized compensation expense related to RSU was approximately $0.4 million, to be recognized over 1.8 years.  

Activity under the Company’s RSU is set forth below:

	Number of Shares
Balance—December 31, 2017		35,029
Granted		102,500
Released		—
Canceled		—
Balance—March 31, 2018		137,529

Employee Stock Purchase Plan

Concurrent with the completion of the IPO in November 2017, the Company adopted the 2017 Employee Stock Purchase Plan, or ESPP. The ESPP authorizes the issuance of 647,494 shares of common stock outstanding under purchase rights granted to its employees. In addition, the shares reserved under the ESPP Plan will automatically increase on the first day of each calendar year, beginning on January 1, 2018 and ending on January 1, 2027, by the lesser of (i) an amount equal to 2% of the total number of shares of the Company’s capital stock outstanding on the last day of the calendar month before the date of the automatic increase, (ii) 1,000,000 shares of common stock, and (iii) a lesser number of shares determined by the board of directors prior to the date of such automatic increase. The ESPP allows eligible employees to purchase shares of the Company’s common stock at a discount through payroll deductions of up to 15% of their eligible compensation, subject to any plan limitations. The ESPP generally provides for offering periods and purchase periods every six months, and at the end of each purchase period, employees are able to purchase shares at 85% of the lower of the fair market value of the Company’s common stock on the first trading day of the purchase period or on the last trading day of the offering period. Since the ESPP was established in November 2017, no shares were issued as of December 31, 2017. Shares expected to be issued under the ESPP were 226,000 for the offering period as of December 31, 2017. The calculated fair value of the shares under the ESPP was estimated using the Black-Scholes model with the following assumptions: risk-free interest rate of 1.31%, expected term of 0.5 year, expected dividends of 0% and volatility of 22%. For the three months ended March 31, 2018, unamortized compensation expense related to ESPP was approximately $0.1 million, to be recognized over approximately two months.  For the year ended December 31, 2017, unamortized compensation expense related to ESPP was approximately $0.5 million, to be recognized over approximately five months.  

The Company uses the straight-line vesting attribution method to record stock-based compensation expense. Stock-based compensation expense recognized in the consolidated statements of operations and comprehensive loss for options, restricted stock units and ESPP was as follows (in thousands):

	Three Months Ended
	March 31,
	2018		2017
Cost of revenue	$	25	$	7
Research and development	573		132
Sales and marketing	111		27
General and administrative	269		76
Total	$	978	$	242

No income tax benefit associated with stock-based compensation expense was recognized in the condensed consolidated statements of operations and comprehensive loss for the three months ended March 31, 2018 and 2017.

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Income Taxes

3 Months Ended

Mar. 31, 2018

Income Tax Disclosure [Abstract]

Income Taxes

9. Income Taxes

The Company recorded an income tax benefit of $0.1million and provision of $0.2 million for the three months ended March 31, 2018 and 2017, respectively. The income tax benefit for the three months ended March 31, 2018 consisted primarily of a credit to foreign jurisdiction.

As of March 31, 2018, based on the available objective evidence, management believes it is more likely than not that the net deferred tax assets will not be realized for federal and state purposes. Accordingly, management has applied a full valuation allowance against its federal and state net deferred tax assets as of March 31, 2018. A release of such valuation allowance could cause a material increase to income in the period such determination is made.

Internal Revenue Code Section 382 and similar California rules place a limitation on the amount of taxable income that can be offset by NOL carryforwards after a change in control (generally greater than 50% change in ownership). Generally, after a control change, a corporation cannot deduct NOL carryforwards in excess of the Section 382 limitations. Due to these provisions, utilization of NOL and tax credit carryforwards may be subject to annual limitations regarding their utilization against taxable income in future periods. The Company completed Section 382 analysis in 2016 and determined ownership changes occurred in July 2005, November 2009 and August 2017, which resulted in reductions to the U.S. federal and California net operating losses of $34.9 million and $24.1 million, respectively, and U.S. federal research and development credits by $1.8 million. Since no deferred tax assets have been recognized on our balance sheet related to our NOLs and tax credits, as they are fully reserved by a valuation allowance, there was no impact to the tax provision.

On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Act”). The Act makes broad and complex changes to the U.S. tax code including, but not limited to: (1) reducing the U.S. federal corporate tax rate from 35 percent to 21 percent; (2) requiring companies to pay a one-time transition tax on certain unrepatriated earnings of foreign subsidiaries; (3) generally eliminating U.S. federal income taxes on dividends from foreign subsidiaries; (4) requiring current inclusion in U.S. federal taxable income of certain earnings of controlled foreign corporations; (5) eliminating the corporate alternative minimum tax, or AMT, and changing how existing AMT credits can be realized; (6) creating the base erosion anti-abuse tax, or BEAT, a new minimum tax; (7) creating a new limitation on deductible interest expense; and (8) changing rules related to uses and limitations of net operating loss carryforwards created in tax years beginning after December 31, 2017.

As of December 31, 2017, the Company’s remeasured certain deferred tax assets and liabilities based on rates at which they are expected to reverse in the future, which is generally 21%. The rate reduction would generally take effect on January 1, 2018. Consequently, any changes in the U.S. corporate income tax rate will impact the carrying value of the deferred tax assets. Under the new corporate income tax rate of 21%, U.S. federal and state deferred tax assets decreased by approximately $15.7 million as of December 31, 2017 and the valuation allowance decreased by approximately the same amount.  Due to the valuation allowance on the deferred tax assets, the provisional amount recorded related to the remeasurement was zero.

As of December 31, 2017, the Company's foreign subsidiaries are in a cumulative deficit. Therefore, the one-time transition tax on deemed repatriation of previously untaxed accumulated earnings and profits of foreign subsidiaries has minimal impact on the Company. Undistributed earnings of foreign subsidiaries are determined to be reinvested indefinitely. Accounting for the transition tax and the conclusion on the Company’s indefinite reinvestment have been completed pursuant to the requirements of the Act.

The SEC staff issued Staff Accountant Bulletin No. 118, or SAB 118, which provides guidance on accounting for the tax effects of the Act. SAB 118 provides a measurement period that should not extend beyond one year from the Act enactment date for companies to complete the accounting under ASC 740. In accordance with SAB 118, a company must reflect the income tax effects of those aspects of the Act for which the accounting under ASC 740 is complete. To the extent that a company’s accounting for certain income tax effects of the Act is incomplete but it is able to determine a reasonable estimate, it must record a provisional estimate in the financial statements. If a company cannot determine a provisional estimate to be included in the financial statements, it should continue to apply ASC 740 on the basis of the provisions of the tax laws that were in effect immediately before the enactment of the Act. As noted above, the Company has recorded a provisional amount associated with the deferred tax assets and related valuation allowance as of March 31, 2018.  At March 31, 2018, the Company is still analyzing certain aspects of the Act including (a) provisions for Global Intangible Low-Taxed Income, or GILTI, wherein taxes on foreign income are imposed in excess of a deemed return on tangible assets of foreign corporations (including related accounting policy elections) and (b) state tax implications of the Act.

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Net Loss Per Share

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Net Loss Per Share

10. Net Loss Per Share

The following table summarizes the computation of basic and diluted net loss per share (in thousands, except per share data):

	Three Month Ended
	March 31,
	2018			2017
Net loss	$	(1,368	)	$	(2,025	)
Weighted-average common shares outstanding		33,494,807			4,476,525
Less: Shares subject to repurchase		—			—
Weighted-average shares outstanding		33,494,807			4,476,525
Net loss per share, basic and diluted	$	(0.04	)	$	(0.45	)

Basic net loss per share is computed by dividing the net loss by the weighted-average number of common shares outstanding for the period. Basic and diluted net loss per share is presented in conformity with the two-class method required for participating securities. Prior to the IPO, the holders of the Company’s convertible preferred stock were entitled to receive non-cumulative dividends, payable prior and in preference to any dividends on shares of the common stock. Any additional dividends would be distributed among the holders of convertible preferred stock and common stock pro rata, assuming the conversion of all convertible preferred stock into common stock. After to the IPO, all convertible preferred stocks were converted to common stock and the Company has one class of stock issued and outstanding.

The following potentially dilutive securities outstanding have been excluded from the computation of diluted weighted-average shares outstanding because such securities have an antidilutive impact due to losses reported (in common stock equivalent shares):

	As of		As of
	March 31,		December 31,
	2018		2017
Stock options to purchase common stock		3,637,248		3,733,544
Common stock warrants		498,419		584,148
Total		4,135,667		4,317,692

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Segment Reporting

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Segment Reporting

11. Segment Reporting

The Company operates in one reportable segment related to the design, development and sale of network communication integrated circuits. The Company’s chief operating decision-maker (“CODM”) is its Chief Executive Officer, who reviews operating results on an aggregate basis and manages the Company’s operations as a whole for the purpose of evaluating financial performance and allocating resources. Substantially all of the Company’s long-lived assets were attributable to operations in the United States as of March 31, 2018 and December 31, 2017.

The following table summarizes revenue by market (in thousands):

	Three Months Ended
	March 31,
	2018		2017
Revenue by market:
Data Center	$	16,269	$	15,755
Enterprise Infrastructure		9,511		7,555
Access		2,531		333
Automotive		47		—
Total revenue	$	28,358	$	23,643

The Company sells its products worldwide and attributes revenue to the geography where the product is shipped. The geographical distribution of revenue as a percentage of total revenue for the periods indicated was as follows:

	Three Months Ended
	March 31,
	2018			2017
Malaysia		62	%		64	%
China		22			26
United States		1			1
Other		15			9
Total		100	%		100	%

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Concentrations

3 Months Ended

Mar. 31, 2018

Risks And Uncertainties [Abstract]

Concentrations

12. Concentrations

Credit—Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. The Company’s cash equivalents consist of cash and money market accounts with a financial institution that management believes to be of high-credit quality; however, at times, balances exceed federally insured limits. Amounts held on deposit at financial institutions in excess of Federal Deposit Insurance Corporation-insured amounts were $0.4 million and $0.9 million as of March 31, 2018 and December 31, 2017, respectively.

Significant Customers—Credit risk with respect to accounts receivable is concentrated with two large customers that contribute a majority of the Company’s business and is mitigated by a relatively short collection period. Collateral is not required for accounts receivable. The fair value of accounts receivable approximates their carrying value. Revenue and accounts receivable concentrated with significant customers and their manufacturing subcontractors as a percentage of accounts receivable and total revenue were as follows:

	As of			As of
	March 31,			December 31,
	2018			2017
Accounts Receivable:
Customer A		36	%		49	%
Customer B	49			34

	Three Months Ended
	March 31,
	2018			2017
Revenue:
Customer A		55	%		63	%
Customer B	28			26

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Employee Benefit Plan

3 Months Ended

Mar. 31, 2018

Text Block [Abstract]

Employee Benefit Plan

13. Employee Benefit Plan

The Company has established a 401(k) plan, which permits participants to make contributions by salary deduction pursuant to Section 401(k) of the Internal Revenue Code. The Company may, at its discretion, make matching contributions to the 401(k) Plan. The Company has made no contributions to the 401(k) Plan since its inception.

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Related Party Transaction

3 Months Ended

Mar. 31, 2018

Related Party Transactions [Abstract]

Related Party Transaction

14. Related Party Transaction

In 2016, the Company entered into an agreement with a significant stockholder to license certain technology intended to be incorporated into the Company’s products under development. Under this agreement, the Company agreed to pay an initial $2.0 million licensing fee and additional licensing fees at a later point of the development program upon the achievement of certain development milestones. In addition, royalties may be due on products sold utilizing the licensed technology. From time to time, the Company also purchases tooling, mask sets, wafers and services from this stockholder in its ordinary course of business. The Company recorded $2.8 million and $3.6 million to research and development expenses, inventory and cost of revenue for the three months ended March 31, 2018 and 2017 respectively, in relation to tooling, mask sets, wafers and services. As of March 31, 2018, the total balance due this stockholder was $4.0 million, which was included in accrued, accounts payable and other long-term liabilities.

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Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2018

Accounting Policies [Abstract]

Recent Accounting Pronouncements

Recent Accounting Pronouncements—

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The new guidance requires entities to recognize assets and liabilities for leases with terms of more than 12 months and additional disclosures to better understand the amount, timing and uncertainty of cash flows arising from leases. The guidance is effective for financial statements issued for fiscal years beginning after December 15, 2018. Early adoption is permitted. Management has concluded that it will not early adopt this standard and is currently evaluating the impact of this new standard on the Company’s condensed consolidated financial statements.

Adopted

Revenue Recognition

Revenue Recognition— In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers” related to the recognition and reporting of revenue that establishes a comprehensive new revenue recognition model designed to depict the transfer of goods or services to a customer in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services. The guidance allows for the use of either the full or modified retrospective transition method. This new standard was effective on January 1, 2018.

Under the new standard, the Company used the modified retrospective method and recognizes all revenue on sales to distributors upon shipment and transfer of control (known as “sell-in” revenue recognition), rather than deferring recognition until distributor report that they have sold the product to their customers (known as “sell-through” revenue recognition).  This change in methodology will cause a shift in the timing of when revenue is recognized for this class of customers comparing to prior periods.  The Company provides some of its distributors rights that would result in a deferral of revenue under the revenue standards before the adoption. Accordingly, the Company recorded $0.1 million of deferred revenue balance to retained earnings upon adoption of this new standard on the Company’s condensed consolidated financial statements. As a result of the adoption, the Company revised its accounting policy for revenue recognition as detailed below:

Revenue Recognition (applicable for periods commencing on or after January 1, 2018):

Product revenues consist of sales to customers which are mainly comprised of end customers, their manufacturing subcontractors, and distributors. Revenue is recognized after the Company (a) identifies the contract with a customer, (b) identifies the performance obligations in the contract, (c) determines the transaction price, (d) allocates the transaction price to the performance obligations in the contract, and (e) satisfies the performance obligation when the control of products is transferred to the customer.

The Company considers the purchase orders, which in some cases are governed by master sales agreements, to be the contract with its customers.  In evaluating the existence of the contract, the Company considers various factors relative to the contract including the customer’s ability to pay amounts due under the contract.  The Company is obligated to deliver a fixed number of products to its customers, each of which is distinct, and have been separately identified to be the performance obligations. The Company generally provides an assurance warranty that its products will substantially conform to the published specifications for twelve months from the date of shipment. The Company has not provided services in addition to the standard warranty. As such, the Company does not consider activities related to such warranty, if any, to be a separate performance obligation.

In determining the transaction price, the Company considers the variability of the amount due under the contract including amounts subject to refund or adjustment when determining the net consideration to which the Company expects to be entitled within the contract.  As the Company’s standard payment terms are less than one year, the Company has elected the practical expedient under the accounting guidance and does not assess whether the contract has a significant financing component.  The Company allocates revenue to each product based on their relative standalone selling price.  Frequently, the Company receives orders for products to be delivered over multiple dates that may extend across several reporting periods. The Company invoices for each delivery upon shipment and recognizes revenues for each distinct product delivered, assuming transfer of control has occurred. As scheduled delivery dates are within one year, under the optional exemption revenues allocated to future shipments of partially completed contracts are not disclosed.

Sales to certain of end customers include limited rebates.  The Company estimates these rebates, using historical volumes of such rebates, at the time revenue is recognized. Such rebates were not significant in any of the periods presented, and the differences between the actual amount of such rebates and our estimates also were not significant.

Sales to most of our distributors are made under contracts that allow for pricing credits upon shipment to the end customer and rights of return for on hand inventory at the distributor.  Under the accounting guidance, revenue is recognized at the point of transfer of control to the distributor, which typically occurs at the point of shipment.  The Company adjusts the transaction price for any unprocessed claims and for future estimated pricing credits which is recorded in accrued liabilities on our condensed consolidated balance sheets.  The adjustments for these estimates are recorded as a reduction to revenue in the same period when the related revenue is recorded and is calculated based on an analysis of the historical actual claims received, both in aggregate and at a distributor level to the extent that it is probable that a significant future reversal of revenue will not occur.  Historically, adjustments for actual pricing credits and product returns have not been significantly differed from the amounts estimated by the Company. As of March 31, 2108, the Company has recorded an accrued liability of $0.4 million relative to the above adjustments to transaction price.

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Balance Sheet Components (Tables)

3 Months Ended

Mar. 31, 2018

Balance Sheets Components [Abstract]

Schedule of Inventories

Inventories consisted of the following (in thousands):

	As of March 31,		As of December 31,
	2018		2017
Processed wafers	$	1,960	$	3,523
Work in process		6,473		10,118
Finished goods		7,723		4,828
Total inventories	$	16,156	$	18,469

Schedule of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following (in thousands):

	As of March 31,		As of December 31,
	2018		2017
Processed wafer prepayments	$	1,639	$	3,443
Electronic design automation tools		389		519
Other prepaid and other current assets		1,438		1,661
Total other prepaid and other current assets	$	3,466	$	5,623

Schedule of Property and Equipment, Net

Property and equipment, net consisted of the following (in thousands):

		As of March 31,			As of December 31,
	Estimated Useful Lives	2018			2017
Machinery and equipment	2-3 years	$	13,863		$	13,268
Production masks	4 years		5,401			5,401
Software and computer equipment	3 years		3,881			3,820
Leasehold improvements	Shorter of estimated life of asset or remaining lease term		539			539
Office furniture and fixtures	3 years		114			114
Total property and equipment			23,798			23,142
Less: accumulated depreciation and    amortization			(14,351	)		(13,169	)
Property and equipment, net		$	9,447		$	9,973

Schedule of Intangible Assets

Intangible assets, net were carried at cost, less accumulated amortization. Intangible assets were as follows (in thousands):

		As of March 31,			As of December 31,
	Estimated Useful Lives	2018			2017
IP license	7 years	$	5,416		$	5,416
Patents	10-12 years		348			348
Total intangible assets			5,764			5,764
Less: accumulated amortization			(1,410	)		(1,208	)
Intangible assets, net		$	4,354		$	4,556

Schedule of Amortization Expense Related to Amortizable Intangibles In Future Periods

Amortization expense related to amortizable intangibles in future periods as of March 31, 2018 is expected to be as follows (in thousands):

2018 (remaining)	$	606
2019		808
2020		808
2021		808
2022 and thereafter		1,324
Total	$	4,354

Schedule of Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

	As of March 31,		As of December 31,
	2018		2017
Accrued compensation and related benefits	$	4,586	$	5,242
Customer Deposit		852		1,154
Accrued IP License		316		343
Accrued technical consulting and professional services		231		259
Accrued royalty, rebates and commission		205		287
Other accrued liabilities		1,849		1,932
Total accrued liabilities	$	8,039	$	9,217

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Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2018

Investments All Other Investments [Abstract]

Summary of Financial Instruments

The following is a summary of financial instruments (in thousands):

	As of March 31, 2018
			Gross		Gross
			Unrealized		Unrealized			Estimated Fair
	Cost		Gains		Losses			Values
Available-for sale securities
Commercial Paper	$	18,412	$	—	$	(23	)	$	18,389
Money market funds		185		—		—			185
Corporate bonds		39,749		—		(199	)		39,550
U.S. government securities		2,493		—		(5	)		2,488
Total available-for-sale securities	$	60,839	$	—	$	(227	)	$	60,612
Reported in:
Cash and cash equivalents								$	2,177
Short-term investments									58,435
Total available-for-sale securities								$	60,612

	As of December 31, 2017
			Gross		Gross
			Unrealized		Unrealized			Estimated Fair
	Cost		Gains		Losses			Values
Available-for sale securities
Commercial paper	$	13,927	$	—	$	(11	)	$	13,916
Money market funds		1,269		—		—			1,269
Corporate bonds		36,534		—		(81	)		36,453
U.S. government securities		2,489		—		(4	)		2,485
Total available-for-sale securities	$	54,219	$	—	$	(96	)	$	54,123
Reported in:
Cash and cash equivalents								$	5,761
Short-term investments									48,362
Total available-for-sale securities								$	54,123

Summary of Contractual Maturities of Available-for-sale Securities

The contractual maturities of available-for-sale securities are presented in the following table (in thousands):

	As of March 31, 2018
	Amortized Cost Basis		Estimated Fair Value
Due in one year or less	$	46,314	$	46,188
Due between one and five years		14,525		14,424
	$	60,839	$	60,612

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Schedule of Financial Assets and Financial Liabilities Measured at Fair Value on a Recurring Basis

The following tables represent the Company’s financial assets and financial liabilities measured at fair value on a recurring basis categorized by the fair value hierarchy as of March 31, 2018 and December 31, 2017 (in thousands):

	As of March 31, 2018
	Level 1		Level 2		Level 3		Total
Financial asset— available-for-sales securities
Money market funds	$	185	$	—	$	—	$	185
Commercial Paper		—		18,389		—		18,389
Corporate bonds		—		39,550		—		39,550
U.S. government securities		—		2,488		—		2,488
Total financial asset—available-for-sales securities	$	185	$	60,427	$	—	$	60,612

	As of December 31, 2017
	Level 1		Level 2		Level 3		Total
Financial asset— available-for-sales securities
Money market funds	$	1,269	$	—	$	—	$	1,269
Commercial paper		—		13,916		—		13,916
Corporate bonds		—		36,453		—		36,453
U.S. government securities		—		2,485		—		2,485
Total financial asset—available-for-sales securities	$	1,269	$	52,854	$	—	$	54,123

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Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2018

Commitments And Contingencies Disclosure [Abstract]

Schedule of Future Minimum Operating Lease Payments and Purchase Obligations

As of March 31, 2018, future minimum operating lease payments and purchase obligations are as follows (in thousands):

					Total
	Operating		Purchase		Lease and Purchase
	Leases		Obligations		Obligations
2018 (remaining)	$	644	$	10,494	$	11,138
2019		1,488		2,289		3,777
2020		1,535		1,549		3,084
2021		2,034		—		2,034
2022 and thereafter		4,299		—		4,299
Total	$	10,000	$	14,332	$	24,332

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Common Stock (Tables)

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Summary of Stock Option Plan

Activity under the Company’s stock option plan is set forth below:

						Weighted-
				Weighted		Average
				Average		Remaining		Aggregate
				Exercise		Contractual		Intrinsic Value
	Number of Shares			Price		Term (Years)		(in thousands)
Balance—December 31, 2016		2,906,596		$	3.20		8.1	$	4,941
Granted		1,320,382		$	7.08
Exercised		(388,621	)	$	3.28
Canceled		(104,813	)	$	4.53
Balance—December 31, 2017		3,733,544		$	4.53		7.9	$	25,386
Granted		—		$	—
Exercised		(3,466	)	$	3.68
Canceled		(92,830	)	$	5.64
Balance—March 31, 2018		3,637,248		$	4.47		7.3	$	1,899
Vested and exercisable—March 31, 2018		1,852,907		$	3.10		6.0	$	23,353
Vested and exercisable—December 31, 2017		1,648,917		$	2.89		6.7	$	13,924

Schedule of Fair Value Assumptions for Option Grants

The calculated fair value of option grants was estimated using the Black-Scholes model with the following assumptions for which options were granted:

	Three Months Ended
	March 31,
	2018	2017
Risk-free interest rate	—	1.97% - 2.40%
Expected term	—	6.1 - 9.6 yrs
Expected dividends	—	0%
Volatility	—	30%

Summary of Company 's RSU

Activity under the Company’s RSU is set forth below:

	Number of Shares
Balance—December 31, 2017		35,029
Granted		102,500
Released		—
Canceled		—
Balance—March 31, 2018		137,529

Schedule of Stock-Based Compensation Expense

Stock-based compensation expense recognized in the consolidated statements of operations and comprehensive loss for options, restricted stock units and ESPP was as follows (in thousands):

	Three Months Ended
	March 31,
	2018		2017
Cost of revenue	$	25	$	7
Research and development	573		132
Sales and marketing	111		27
General and administrative	269		76
Total	$	978	$	242

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Net Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Summary of Computation of Basic and Diluted Net Loss Per Share Attributable to Common Shareholders

The following table summarizes the computation of basic and diluted net loss per share (in thousands, except per share data):

Summary of Potentially Dilutive Securities Outstanding Excluded from Computation of Diluted Weighted-average Shares Outstanding

The following potentially dilutive securities outstanding have been excluded from the computation of diluted weighted-average shares outstanding because such securities have an antidilutive impact due to losses reported (in common stock equivalent shares):

	As of		As of
	March 31,		December 31,
	2018		2017
Stock options to purchase common stock		3,637,248		3,733,544
Common stock warrants		498,419		584,148
Total		4,135,667		4,317,692

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Segment Reporting (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Schedule of Revenue from Segments

The following table summarizes revenue by market (in thousands):

	Three Months Ended
	March 31,
	2018		2017
Revenue by market:
Data Center	$	16,269	$	15,755
Enterprise Infrastructure		9,511		7,555
Access		2,531		333
Automotive		47		—
Total revenue	$	28,358	$	23,643

Schedule of Geographical Distribution of Revenue

The geographical distribution of revenue as a percentage of total revenue for the periods indicated was as follows:

	Three Months Ended
	March 31,
	2018			2017
Malaysia		62	%		64	%
China		22			26
United States		1			1
Other		15			9
Total		100	%		100	%

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Concentrations (Tables)

3 Months Ended

Mar. 31, 2018

Risks And Uncertainties [Abstract]

Schedule of Customer Concentration as Percentage of Accounts Receivable and Total Revenue

Revenue and accounts receivable concentrated with significant customers and their manufacturing subcontractors as a percentage of accounts receivable and total revenue were as follows:

	As of			As of
	March 31,			December 31,
	2018			2017
Accounts Receivable:
Customer A		36	%		49	%
Customer B	49			34

	Three Months Ended
	March 31,
	2018			2017
Revenue:
Customer A		55	%		63	%
Customer B	28			26

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Organization, Description of Business and Basis for Presentation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Nov. 07, 2017	Mar. 31, 2018	Mar. 31, 2017
Subsidiary Sale of Stock [Line Items]
Offering expense		$ 276	$ 68
Proceeds used to repay outstanding indebtedness			$ 2,525
IPO
Subsidiary Sale of Stock [Line Items]
Net proceeds from IPO	$ 65,600
Underwriting discounts and commissions	4,900
Offering expense	5,700
Proceeds used to repay outstanding indebtedness	9,200
Line of credit termination fee	$ 300
IPO | Common Stock
Subsidiary Sale of Stock [Line Items]
Number of shares issued	7,840,700
Offering price per share	$ 9.00
IPO | Common Stock | Underwriters
Subsidiary Sale of Stock [Line Items]
Number of shares issued	1,022,700

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Summary of Significant Accounting Policies - Additional Information (Details) $ in Millions	Mar. 31, 2018 USD ($)
Summary Of Significant Accounting Policy [Line Items]
Accrued liabilities	$ 0.4
ASU 2014-09
Summary Of Significant Accounting Policy [Line Items]
Deferred revenue balance to retained earnings upon adoption of new standard	$ 0.1

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Balance Sheet Components - Schedule of Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Processed wafers	$ 1,960	$ 3,523
Work in process	6,473	10,118
Finished goods	7,723	4,828
Total inventories	$ 16,156	$ 18,469

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Balance Sheet Components - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Prepaid Expense And Other Assets Current [Abstract]
Processed wafer prepayments	$ 1,639	$ 3,443
Electronic design automation tools	389	519
Other prepaid and other current assets	1,438	1,661
Total other prepaid and other current assets	$ 3,466	$ 5,623

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Balance Sheet Components - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 23,798	$ 23,142
Less: accumulated depreciation and amortization	(14,351)	(13,169)
Property and equipment, net	9,447	9,973
Machinery and Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 13,863	13,268
Machinery and Equipment | Minimum
Property Plant And Equipment [Line Items]
Property and equipment, estimated useful lives	2 years
Machinery and Equipment | Maximum
Property Plant And Equipment [Line Items]
Property and equipment, estimated useful lives	3 years
Production Masks
Property Plant And Equipment [Line Items]
Property and equipment, estimated useful lives	4 years
Property and equipment, gross	$ 5,401	5,401
Software and Computer Equipment
Property Plant And Equipment [Line Items]
Property and equipment, estimated useful lives	3 years
Property and equipment, gross	$ 3,881	3,820
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, estimated useful lives	Shorter of estimated life of asset or remaining lease term
Property and equipment, gross	$ 539	539
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Property and equipment, estimated useful lives	3 years
Property and equipment, gross	$ 114	$ 114

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Balance Sheet Components - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Balance Sheets Components [Abstract]
Depreciation and amortization of property and equipment	$ 1.2	$ 0.8
Amortization of intangible assets	$ 0.2	$ 0.2

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Balance Sheet Components - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Finite Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 5,764	$ 5,764
Less: accumulated amortization	(1,410)	(1,208)
Intangible assets, net	$ 4,354	4,556
IP license
Finite Lived Intangible Assets [Line Items]
Intangible assets, estimated useful lives	7 years
Intangible assets, gross	$ 5,416	5,416
Patents
Finite Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 348	$ 348
Patents | Minimum
Finite Lived Intangible Assets [Line Items]
Intangible assets, estimated useful lives	10 years
Patents | Maximum
Finite Lived Intangible Assets [Line Items]
Intangible assets, estimated useful lives	12 years

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Balance Sheet Components - Schedule of Amortization Expense Related to Amortizable Intangibles In Future Periods (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Finite Lived Intangible Assets Future Amortization Expense [Abstract]
2018 (remaining)	$ 606
2019	808
2020	808
2021	808
2022 and thereafter	1,324
Intangible assets, net	$ 4,354	$ 4,556

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Balance Sheet Components - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Accrued Liabilities Current [Abstract]
Accrued compensation and related benefits	$ 4,586	$ 5,242
Customer Deposit	852	1,154
Accrued IP License	316	343
Accrued technical consulting and professional services	231	259
Accrued royalty, rebates and commission	205	287
Other accrued liabilities	1,849	1,932
Total accrued liabilities	$ 8,039	$ 9,217

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Financial Instruments - Summary of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Schedule Of Available For Sale Securities [Line Items]
Cost	$ 60,839	$ 54,219
Gross Unrealized Losses	(227)	(96)
Estimated Fair Values	60,612	54,123
Commercial Paper
Schedule Of Available For Sale Securities [Line Items]
Cost	18,412	13,927
Gross Unrealized Losses	(23)	(11)
Estimated Fair Values	18,389	13,916
Money Market Fund
Schedule Of Available For Sale Securities [Line Items]
Cost	185	1,269
Estimated Fair Values	185	1,269
Corporate Bonds
Schedule Of Available For Sale Securities [Line Items]
Cost	39,749	36,534
Gross Unrealized Losses	(199)	(81)
Estimated Fair Values	39,550	36,453
U.S. Government Securities
Schedule Of Available For Sale Securities [Line Items]
Cost	2,493	2,489
Gross Unrealized Losses	(5)	(4)
Estimated Fair Values	2,488	2,485
Cash and Cash Equivalents
Schedule Of Available For Sale Securities [Line Items]
Estimated Fair Values	2,177	5,761
Short-term Investments
Schedule Of Available For Sale Securities [Line Items]
Estimated Fair Values	$ 58,435	$ 48,362

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Financial Instruments - Summary of Contractual Maturities of Available-for-sale Securities (Details) $ in Thousands	Mar. 31, 2018 USD ($)
Amortized Cost Basis
Due in one year or less	$ 46,314
Due between one and five years	14,525
Total	60,839
Estimated Fair Values
Due in one year or less	46,188
Due between one and five years	14,424
Total	$ 60,612

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Financial Instruments - Additional Information (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Investments Debt And Equity Securities [Abstract]
Available for sale securities, continuous loss position, 12 months or longer	$ 0	$ 0

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Fair Value Measurements - Schedule of Financial Assets and Financial Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Estimated Fair Values	$ 60,612	$ 54,123
Corporate Bonds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Estimated Fair Values	39,550	36,453
Recurring Basis
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Estimated Fair Values	60,612	54,123
Recurring Basis | Money Market Fund
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Estimated Fair Values	185	1,269
Recurring Basis | Commercial Paper
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Estimated Fair Values	18,389	13,916
Recurring Basis | U.S. Government Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Estimated Fair Values	2,488	2,485
Recurring Basis | Corporate Bonds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Estimated Fair Values	39,550	36,453
Recurring Basis | Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Estimated Fair Values	185	1,269
Recurring Basis | Level 1 | Money Market Fund
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Estimated Fair Values	185	1,269
Recurring Basis | Fair Value, Inputs, Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Estimated Fair Values	60,427	52,854
Recurring Basis | Fair Value, Inputs, Level 2 | Commercial Paper
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Estimated Fair Values	18,389	13,916
Recurring Basis | Fair Value, Inputs, Level 2 | U.S. Government Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Estimated Fair Values	2,488	2,485
Recurring Basis | Fair Value, Inputs, Level 2 | Corporate Bonds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Estimated Fair Values	$ 39,550	$ 36,453

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Fair Value Measurements - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Transfers within hierarchy	$ 0	$ 0

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Commitments and Contingencies - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Commitments And Contingencies Disclosure [Abstract]
Rent expense	$ 300,000	$ 200,000
Liability associated with indemnifications	$ 0		$ 0
Operating Leases, Indemnification Agreements, Description	Under the indemnification provisions of the Company’s standard sales-related contracts, the Company agrees to defend its customers against third-party claims asserting infringement of certain intellectual property rights, which may include patents, copyrights, trademarks, or trade secrets, and to pay judgments entered on such claims. Certain agreements include indemnification provisions that could potentially expose the Company to losses in excess of the amount received under the agreement. In addition, the Company indemnifies its directors and certain of its officers while they are serving in good faith in such capacities. To date, the Company has not incurred costs to defend lawsuits or settle claims related to these indemnification agreements.

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Commitments and Contingencies - Schedule of Future Minimum Operating Lease Payments and Purchase Obligations (Details) $ in Thousands	Mar. 31, 2018 USD ($)
Operating Leases
2018 (remaining)	$ 644
2019	1,488
2020	1,535
2021	2,034
2022 and thereafter	4,299
Total	10,000
Purchase Obligations
2018 (remaining)	10,494
2019	2,289
2020	1,549
Total	14,332
Total Lease and Purchase Obligations
2018 (remaining)	11,138
2019	3,777
2020	3,084
2021	2,034
2022 and thereafter	4,299
Total	$ 24,332

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Shareholder's Equity and Share-based Compensation - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Common stock, shares authorized	400,000,000	400,000,000
Common stock, par value	$ 0.00001	$ 0.00001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, par value	$ 0.00001	$ 0.00001
Preferred stock, shares outstanding	0
Dividends declared	$ 0
2015 Equity Incentive Plan and 2004 Equity Incentive Plan | Incentive Stock Options
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Exercise price determination description	The exercise price of an option is determined by the board of directors when the option is granted and may not be less than 85% of the fair market value of the shares on the date of grant, provided that the exercise price of an ISO is not less than 100% of the fair market value of the shares on the date of grant and the exercise price of any option granted to a 10% stockholder is not less than 110% of the fair market value of the shares on the date of grant.
Exercise price per share	85.00%
Equity incentive plan expiration period	10 years
2015 Equity Incentive Plan and 2004 Equity Incentive Plan | Nonstatutory
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Equity incentive plan expiration period	10 years
2017 Equity Incentive Plan
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Vesting period	4 years
Common shares reserved	1,618,735
Percentage of increase in common shares reserved	5.00%
Shares available for grant	1,698,413
Share-based Compensation Award, Tranche One | 2015 Equity Incentive Plan and 2004 Equity Incentive Plan | Incentive Stock Options
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Vesting percentage	25.00%
Vesting period	12 months
Share-based Compensation Award, Tranche Two | 2015 Equity Incentive Plan and 2004 Equity Incentive Plan | Incentive Stock Options
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Vesting percentage	25.00%
Vesting period	12 months
Share-based Compensation Award, Tranche Three | 2015 Equity Incentive Plan and 2004 Equity Incentive Plan | Incentive Stock Options
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Vesting percentage	25.00%
Vesting period	12 months
Share Based Compensation Award Tranche Four | 2015 Equity Incentive Plan and 2004 Equity Incentive Plan | Incentive Stock Options
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Vesting percentage	25.00%
Vesting period	12 months
Maximum
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Common stock, shares authorized	400,000,000	400,000,000
Maximum | 2015 Equity Incentive Plan and 2004 Equity Incentive Plan | Incentive Stock Options
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Exercise price per share	100.00%
Maximum | 2015 Equity Incentive Plan and 2004 Equity Incentive Plan | Incentive Stock Options | 10% stockholder
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Exercise price per share	110.00%
Maximum | 2017 Equity Incentive Plan
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Exercise price per share	100.00%
Options granted exercise period	10 years
Maximum | 2017 Equity Incentive Plan | 10% stockholder
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Exercise price per share	110.00%

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Common Stock - Summary of Stock Option Plan (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted	0
Incentive Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Beginning balance	3,733,544	2,906,596
Granted		1,320,382
Exercised	(3,466)	(388,621)
Canceled	(92,830)	(104,813)
Ending balance	3,637,248	3,733,544	2,906,596
Number of shares, vested and exercisable	1,852,907	1,648,917
Weighted average exercise price, beginning balance	$ 4.53	$ 3.20
Weighted average exercise price, granted		7.08
Weighted average exercise price, exercised	3.68	3.28
Weighted average exercise price, canceled	5.64	4.53
Weighted average exercise price, ending balance	4.47	4.53	$ 3.20
Weighted average exercise price, vested and exercisable	$ 3.10	$ 2.89
Weighted average remaining contractual term	7 years 3 months 18 days	7 years 10 months 25 days	8 years 1 month 6 days
Weighted average remaining contractual term, vested and exercisable	6 years	6 years 8 months 12 days
Aggregate intrinsic value	$ 1,899	$ 25,386	$ 4,941
Aggregate intrinsic value, vested and exercisable	$ 23,353	$ 13,924

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Common Stock - Additional Information (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Nov. 07, 2017
Class Of Stock [Line Items]
Unrecognized stock compensation costs	$ 4,600,000		$ 4,800,000
Unrecognized stock compensation costs recognition period	2 years 7 months 6 days		3 years 1 month 6 days
Aggregate intrinsic value of options exercised	$ 100,000		$ 1,600,000
Granted	0
Weighted-average grant-date fair value of options granted			$ 2.94
Expected dividends		0.00%
Expected volatility rate		30.00%
Income tax benefit associated with stock-based compensation expense	$ 0	$ 0
2017 Equity Incentive Plan
Class Of Stock [Line Items]
Vesting period	4 years
Description of restricted stock unit awards conversion basis upon vesting			one-for-one
Number of shares reduced from shares available for issuance upon restricted stock unit awards grants			1
Common shares reserved	1,618,735
Shares available for grant	1,698,413
ESPP
Class Of Stock [Line Items]
Unrecognized stock compensation costs recognition period	2 months		5 months
Unamortized compensation expense to be recognized	$ 100,000		$ 500,000
Common stock shares authorized				647,494
Percentage of shares of capital stock outstanding	2.00%
Common shares reserved	1,000,000
Percentage of payroll deduction on eligible compensation	15.00%
Percentage of shares purchased at fair market value of common stock	85.00%
Shares issued under plan	0
Shares available for grant	226,000
Risk free interest rate	1.31%
Expected term	6 months
Expected dividends	0.00%
Expected volatility rate	22.00%
Restricted Stock Unit Awards | 2017 Equity Incentive Plan
Class Of Stock [Line Items]
Unrecognized stock compensation costs recognition period	2 years 6 months		1 year 9 months 18 days
Vesting period			4 years
Unamortized compensation expense to be recognized	$ 1,900,000		$ 400,000

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Common Stock - Schedule of Fair Value Assumptions for Option Grants (Details)	3 Months Ended
	Mar. 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Risk-free interest rate, minimum	1.97%
Risk-free interest rate, maximum	2.40%
Expected dividends	0.00%
Volatility	30.00%
Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term	6 years 1 month 6 days
Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term	9 years 7 months 6 days

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Common Stock - Summary of Company 's RSU (Details) - Restricted Stock Unit Awards	3 Months Ended
	Mar. 31, 2018 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, beginning balance	35,029
Number of shares, Granted	102,500
Number of shares, ending balance	137,529

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Common Stock - Schedule of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 978	$ 242
Cost of Revenue
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	25	7
Research and Development
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	573	132
Sales and Marketing
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	111	27
General and Administrative
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 269	$ 76

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Income Taxes - Additional Information (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Operating Loss Carryforwards [Line Items]
Provision for (benefit from) income taxes	$ (125,000)	$ 151,000
Federal net operating loss carryforwards	34,900,000
State net operating loss carryforwards	24,100,000
Federal research and development credits	1,800,000
Deferred tax assets recognized	$ 0
Federal tax at statutory rate	21.00%		35.00%
Amount of deferred tax assets decreased	$ 15,700,000
Provisional amount recorded related to the remeasurement	$ 0
Minimum
Operating Loss Carryforwards [Line Items]
Change in ownership percentage	50.00%

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Net Loss Per Share - Summary of Computation of Basic and Diluted Net Loss Per Share Attributable to Common Shareholders (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
Net loss	$ (1,368)	$ (2,025)
Weighted-average common shares outstanding	33,494,807	4,476,525
Weighted-average shares outstanding	33,494,807	4,476,525
Net loss per share, basic and diluted	$ (0.04)	$ (0.45)

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Net Loss Per Share - Summary of Potentially Dilutive Securities Outstanding Excluded from Computation of Diluted Weighted-average Shares Outstanding (Details) - shares	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Potential dilutive securities outstanding excluded from computation of diluted weighted-average shares outstanding	4,135,667	4,317,692
Incentive Stock Options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Potential dilutive securities outstanding excluded from computation of diluted weighted-average shares outstanding	3,637,248	3,733,544
Common Stock Warrants
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Potential dilutive securities outstanding excluded from computation of diluted weighted-average shares outstanding	498,419	584,148

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Segment Reporting (Details)	3 Months Ended
	Mar. 31, 2018 Segment
Segment Reporting [Abstract]
Number of reportable segments	1

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Segment Reporting - Schedule of Revenue from Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Revenue	$ 28,358	$ 23,643
Data Center
Segment Reporting Information [Line Items]
Revenue	16,269	15,755
Enterprise Infrastructure
Segment Reporting Information [Line Items]
Revenue	9,511	7,555
Access
Segment Reporting Information [Line Items]
Revenue	2,531	$ 333
Automotive
Segment Reporting Information [Line Items]
Revenue	$ 47

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Segment Reporting - Schedule of Geographical Distribution of Revenue (Details) - Revenue - Geographic Concentration Risk	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues From External Customers And Long Lived Assets [Line Items]
Percentage of revenue	100.00%	100.00%
Malaysia
Revenues From External Customers And Long Lived Assets [Line Items]
Percentage of revenue	62.00%	64.00%
China
Revenues From External Customers And Long Lived Assets [Line Items]
Percentage of revenue	22.00%	26.00%
United States
Revenues From External Customers And Long Lived Assets [Line Items]
Percentage of revenue	1.00%	1.00%
Other
Revenues From External Customers And Long Lived Assets [Line Items]
Percentage of revenue	15.00%	9.00%

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Concentrations - Additional Information (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Risks And Uncertainties [Abstract]
Amounts held on deposit at financial institutions in excess of FDIC insured limits	$ 0.4	$ 0.9

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Concentrations - Schedule of Customer Concentration as Percentage of Accounts Receivable and Total Revenue (Details) - Customer Concentration Risk	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Accounts Receivable | Customer A
Concentration Risk [Line Items]
Concentration risk, percentage	36.00%		49.00%
Accounts Receivable | Customer B
Concentration Risk [Line Items]
Concentration risk, percentage	49.00%		34.00%
Revenue | Customer A
Concentration Risk [Line Items]
Concentration risk, percentage	55.00%	63.00%
Revenue | Customer B
Concentration Risk [Line Items]
Concentration risk, percentage	28.00%	26.00%

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Employee Benefit Plan - Additional Information (Details)	3 Months Ended
	Mar. 31, 2018 USD ($)
401 (k)
Defined Contribution Plan Disclosure [Line Items]
Company contribution	$ 0

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Related Party Transaction - Additional Information (Details) - Significant Stockholder - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
License agreement initial payment			$ 2.0
Research and development expenses, inventory and cost of revenue	$ 2.8	$ 3.6
Due to related parties	$ 4.0