Document


WEC Energy Group Retirement Savings Plan
Report of Independent Registered Public Accounting Firm (December 31, 2023)
Report of Independent Registered Public Accounting Firm (December 31, 2022)
Statements of Net Assets Available for Benefits as of December 31, 2023 and 2022
Statement of Changes in Net Assets Available for Benefits for the Year Ended December 31, 2023
Notes to Financial Statements
Form 5500, Schedule H, Part IV, Line 4i -- Schedule of Assets (Held at End of Year) as of December 31, 2023


WEC ENERGY GROUP RETIREMENT SAVINGS PLAN

TABLE OF CONTENTS
						Page

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM (December 31, 2023)						3

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM (December 31, 2022)						4

FINANCIAL STATEMENTS:

Statements of Net Assets Available for Benefits as of December 31, 2023 and 2022						5

Statement of Changes in Net Assets Available for Benefits for the Year Ended December 31, 2023						6

Notes to Financial Statements						7-15

SUPPLEMENTAL SCHEDULE:

Form 5500, Schedule H, Part IV, Line 4i - Schedule of Assets (Held at End of Year) as of December 31, 2023						17

All other schedules required by Section 2520.103-10 of the Department of Labor Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974, as amended, have been omitted because they are not applicable.

We have audited the accompanying statement of net assets available for benefits of WEC Energy Group Retirement Savings Plan (the "Plan") as of December 31, 2023, the related statement of changes in net assets available for benefits for the year then ended, and the related notes (collectively referred to as the "financial statements"). In our opinion, the financial statements present fairly, in all material respects, the net assets available for benefits of the Plan as of December 31, 2023, and the changes in net assets available for benefits for the year then ended, in conformity with accounting principles generally accepted in the United States of America.

These financial statements are the responsibility of the Plan's management. Our responsibility is to express an opinion on the Plan's financial statements based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) ("PCAOB") and are required to be independent with respect to the Plan in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Plan is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audit, we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Plan’s internal control over financial reporting. Accordingly, we express no such opinion.

Our audit included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audit provides a reasonable basis for our opinion.

The supplemental Schedule H, Part IV, Line 4i – Schedule of Assets (Held at End of Year) as of December 31, 2023 has been subjected to audit procedures performed in conjunction with the audit of WEC Energy Group Retirement Savings Plan’s financial statements. The supplemental schedule is the responsibility of the Plan’s management. Our audit procedures included determining whether the information presented in the supplemental schedule reconciles to the financial statements or the underlying accounting and other records, as applicable, and performing procedures to test the completeness and accuracy of the information presented in the supplemental schedule. In forming our opinion on the supplemental schedule, we evaluated whether the supplemental schedule, including its form and content, is presented in conformity with the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. In our opinion, the supplemental schedule is fairly stated in all material respects in relation to the financial statements as a whole.

We have audited the accompanying statement of net assets available for benefits of the WEC Energy Group Retirement Savings Plan (the Plan) as of December 31, 2022, and the related notes to financial statements (collectively referred to as the financial statements). In our opinion, the financial statements present fairly, in all material respects, the net assets available for benefits of the Plan as of December 31, 2022, in conformity with accounting principles generally accepted in the United States of America.

These financial statements are the responsibility of the Plan's management. Our responsibility is to express an opinion on the Plan's financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Plan in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud.

Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.


(in thousands)	2023		2022
Investments:
Plan interest in Master Trust, at fair value	$	1,462,686	$	1,354,878
Plan interest in Master Trust, at contract value	54,855		72,402
Total investments	1,517,541		1,427,280

Receivables:
Employer contributions receivable	14,832		14,406

Notes receivable from participants	15,006		14,723
Total receivables	29,838		29,129

Net assets available for benefits	$	1,547,379	$	1,456,409


(in thousands)	2023
Additions to net assets attributed to:
Contributions:
Participants	$	37,045
Employer	33,046
Rollover	3,694
Total contributions	73,785
Investment income:
Plan interest in Master Trust investment income	197,843
Interest income from notes receivable from participants	938
Other income	399
Total investment income	199,180
Total additions, net	272,965

Deductions from net assets attributed to:
Benefits paid to participants	181,189
Administrative expenses	689
Total deductions	181,878

Net increase in net assets available for benefits before net transfers	91,087

Transfers as a result of transferred employees	(117)


Net assets available for benefits: Beginning of year	1,456,409
End of year	$	1,547,379

The following description of the WEC Energy Group Retirement Savings Plan (the "Plan") is provided for general information purposes only. More complete information regarding the Plan's provisions may be found in the Plan document.

General–WEC Energy Group, Inc. (the "Company") established the Plan effective September 14, 2016. The Plan is a defined contribution plan covering certain non-represented employees who are employed by a participating company and represented employees who are represented by a union which elected to participate in the Plan. Seasonal, limited term or temporary employees, project workers, students and interns, and leased employees are not eligible to participate in this Plan. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended ("ERISA").

The Plan assets are held in the WEC Energy Group Master Trust ("Master Trust"). Assets of two other savings plans sponsored by the Company are commingled with the Plan in the Master Trust. Each participating plan has a divided interest in specific assets of the Master Trust based on participant account balances.

The Plan has an automatic enrollment feature for all newly hired and rehired employees. These employees are enrolled automatically in the Plan at a pre-tax rate of 5% of their 401(k) eligible wages unless they make an alternate election. In addition, these 401(k) account contributions increase automatically by 1% in each subsequent year up to 10% of eligible wages. If employees enroll, or are automatically enrolled, in the Plan, but do not designate a desired investment strategy, the Trustee will direct the employee's contributions into a target retirement date-based Fidelity Freedom Fund.

Participant Contributions–Participants are allowed to make pre-tax, after-tax, and Roth contributions of up to 75% of their base wages, as defined, subject to certain limitations of the Internal Revenue Code ("IRC"). Participants may also contribute amounts representing distributions from other qualified defined benefit or defined contribution plans ("rollovers"). Additionally, each participant over age 50 may elect to make catch up contributions subject to certain limitations of the IRC.


			Employee group						Matching Contribution (% of eligible compensation)
			Non-represented management employees						100% of first 5%
			PGL Local 18007:
			Hired prior to May 1, 2008						60% of first 6%
			Hired on or after May 1, 2008 (1)						100% of first 5%
			PGL Local 18007C:
			Hired on or after September 11, 2016						100% of first 5%
			NSG Local 2285:
			Hired prior to July 1, 2008						60% of first 6%
			Hired on or after July 1, 2008 (1)						100% of first 5%
			WPSC Local 420:
			Hired prior to December 19, 2009						None
			Hired on or after December 19, 2009 (1)						100% of first 5%
			MGU Local 12295:
			Hired prior to January 16, 2010						100% of first 6%
			Hired on or after January 16, 2010 (1)						100% of first 5%
			WRPCO Local 1147:
			Hired prior to April 18, 2010						100% of first 4%
			Hired on or after April 18, 2010 (1)						100% of first 5%
			MERC Local 31:
			Hired prior to March 22, 2011						100% of first 6%
			Hired on or after March 22, 2011 (1)						100% of first 5%
			MERC Local 49						100% of first 5%
			MGU Local 417:
			Hired prior to February 16, 2012						100% of first 6%
			Hired on or after February 16, 2012 (1)						100% of first 5%

Each quarter, the Company contributes to the Plan on behalf of eligible employees represented by Wisconsin Public Service Corporation ("WPSC") Local 420, 2% of a participant's gross pay for that quarter. Also, an additional 2.7% of a participant's base pay is contributed to the Plan as described in the collective bargaining agreement.

Non-represented employees and represented New Program Participants receive an annual Company contribution to their 401(k) plan based on each employee's age and/or service points ("Age & Service Point Contribution") instead of being enrolled in the Company's defined benefit plans. The Age & Service Point Contribution is made annually, in the first quarter following the year for which the contribution is earned.

Company contributions are invested in the same manner as the investment elections set by the participant for his or her pre-tax contributions. However, participants may designate a different investment election for Company contributions than those designated for the participant's contributions. If investment elections have not been set by the participant for his or her pre-tax contributions, the Company match will be invested in the same target retirement date-based Fidelity Freedom Fund as the participant's pre-tax contributions.

Participant Accounts–Individual accounts are maintained for each of the Plan's participants to reflect the participant's contributions and withdrawals, Company contributions, as applicable, and the allocated share of the investment activities for each investment option in which he or she participates. Allocations of investment income and administrative expenses are based on participant earnings or account balances, or participant transactions, as defined. The benefit to which a participant is entitled is the benefit that can be provided by the participant's vested account.

Vesting–Participants are immediately vested in all contributions under the Plan, plus actual earnings thereon, except for the Age & Service Point Contribution. Participants vest in the Age & Service Point Contribution, plus actual earnings thereon, upon completion of three years of vesting service. Forfeited balances of terminated participants' non-vested accounts are used to reduce future Company contributions or to pay Plan expenses. At December 31, 2023 and 2022,

Investment Options–The participants' deposits and the Company's contributions are paid to the Trustee who invests the deposits, as directed (in whole percentages) by the participant, within prescribed limitations, into various investment funds offered by the Plan, including the WEC Common Stock Fund, which invests in Company common stock.

Employee Stock Ownership Plan–The employee stock ownership plan portion of the Plan permits participants invested in the WEC Common Stock Fund to elect to have dividends reinvested in additional units of the WEC Common Stock Fund or to be paid in cash as a taxable distribution.

Voting Rights–Each participant is entitled to exercise voting rights attributable to the shares of Company common stock allocated to the participant's account. Each participant is notified prior to the time such voting rights are to be exercised. The Trustee will vote any allocated shares for which instructions have not been given by participants in the same proportion as directed by participants who gave voting instructions.

Benefit Payments–A participant may take a distribution due under the Plan as a single lump-sum cash payment; installment payments over a period not extending beyond the life expectancy of the participant; or up to four partial withdrawals per Plan year. The full value of a participant's account is automatically distributed through a lump-sum cash payment to the employee or designated beneficiary upon retirement, termination of employment or death, for account balances less than $1,000. Although the Plan is primarily designed to meet long-term financial needs, employees may permanently withdraw amounts from their accounts under the terms of the Plan's financial hardship withdrawal guidelines. Additionally, participants may withdraw all or a portion of the value of their after-tax contributions; however, these withdrawals are limited to once per Plan year per participant.

Employee Transfers–In the event that an employee has a change in status and is no longer eligible for this Plan, participation in the Plan shall be suspended. Employees transferred to ineligible positions may be eligible for an elective transfer to another defined contribution plan maintained by the Company. The net transfer of accounts between plans is presented in the statement of changes in net assets available for benefits.

Notes Receivable from Participants–Participants may borrow from their fund accounts a minimum of $1,000 up to the lesser of 50% of their account balance or $50,000, minus any outstanding loan balances over the past 12 months. Participants are limited to two outstanding loans at any time. New loans are repayable monthly over periods not to exceed five years. The interest rate charged on participant loans is fixed at the beginning of each loan at the then current prime rate plus 1%. The interest paid by a participant on their loan balance is credited directly to their individual account.

The accompanying financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America. This requires the Plan's management to make estimates and assumptions that affect the reported amounts of assets and liabilities and changes therein, and disclosure of contingent assets and liabilities. Actual results could differ from those estimates.

Valuation of Investments in Master Trust–Investments of the Master Trust and the Plan's interest in the Master Trust are reported at fair value, with the exception of fully benefit-responsive investment contracts, which are presented at contract value. Contract value is the amount participants would receive if they were to initiate permitted transactions under the terms of the Plan and, thus, is the relevant measurement attribute for that portion of the net assets available for benefits of a defined-contribution plan attributable to fully benefit-responsive investment contracts.

Fair Value Measurements–The framework for measuring fair value provides a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (level 1) and the lowest priority to unobservable inputs (level 3). The three levels of the fair value hierarchy are described as follows:

• Level 1–Pricing inputs are unadjusted quoted prices available in active markets for identical assets or liabilities as of the reporting date. Active markets are those in which transactions for the asset or liability occur in sufficient frequency and volume to provide pricing information on an ongoing basis.

• Level 2–Pricing inputs are quoted prices for similar or identical assets or liabilities in active or inactive markets, either directly or indirectly observable, that reflect assumptions market participants would use to price the asset based on market data obtained from sources independent of the Plan. This may include matrix pricing, yield curves and indices. Other inputs are derived principally from or corroborated by observable market data by correlation or other means. If the asset or liability has a specified (i.e., contractual) term, the Level 2 input must be observable for substantially the full term of the asset or liability.

The asset or liability's fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used maximize the use of observable inputs and minimize the use of unobservable inputs.

• Mutual Funds: Valued at the daily closing price as reported by the fund. Mutual funds held by the Plan are open-end mutual funds that are registered with the Securities and Exchange Commission. These funds are required to publish their daily net asset value ("NAV") and to transact at that price. The mutual funds held by the Plan are deemed to be actively traded.

• WEC Common Stock Fund: Valued at the daily NAV of the underlying investment as calculated by the Trustee. The NAV is used as a practical expedient to estimate fair value. The NAV reflects the combined fair value of the underlying stock and fair value of the short-term cash position. The fair value of the common stock portion of the fund is based on the closing price as of the last day of the year of the stock on its primary exchange multiplied by the number of shares held in the fund. After determining the fair value of the stock portion of the fund, the fair value of the cash position, accrued dividends, expenses and/or other liabilities are calculated and the total (i.e., shareholder equity) is divided by the number of outstanding units.

• Common Collective Trust Funds: Valued at the NAV of units of bank collective trust. The NAV, as provided by the trustee, is used as a practical expedient to estimate fair value. The NAV is based on the fair value of the underlying investments held by the fund less its liabilities. This practical expedient is not used when it is determined to be probable that the fund will sell the investment for an amount different than the reported NAV.

Investment Transactions and Investment Income–Investment transactions of the Plan and the Master Trust are recorded on the trade date. Interest is recorded as earned on an accrual basis. Dividends are recorded on the ex-dividend date. Net appreciation (depreciation) includes gains and losses on investments bought and sold as well as held during the year.

Risks and Uncertainties–The Plan and the Master Trust provide for various investment options. Investments, in general, are exposed to various risks including, but not limited to, interest rate, credit, and overall market volatility. Due to the level of risk associated with certain investment securities, it is at least reasonably possible that changes in the values of investments will occur in the near term and that such changes could materially affect participants' account balances and the amounts reported in the financial statements.

Administrative Expenses–A flat amount is deducted quarterly from each participant's account to pay for the Plan's administrative expenses such as recordkeeping, communications, investment advisory, audit, reporting, and compliance costs. The Company pays the annual administrative expenses for which participant deductions were not sufficient; conversely, fees collected from participants in excess of the annual administrative costs are allocated back to participant accounts. Loan origination fees are paid by the borrowing participant and charged against the fund from which the borrowings are made. Investment-related expenses are included in the Plan interest in Master Trust net investment income.

Contributions–Participant contributions become payable to the Plan on the pay date on which the contribution was deducted from the employee's pay. The Plan records employer contributions receivable when earned by the participants.

Notes Receivable from Participants–Notes receivable from participants are measured at their unpaid principal balance plus accrued interest. Delinquent participant loans are reclassified as distributions based upon the terms of the Plan document.

Subsequent Events–Plan management has evaluated subsequent events and transactions for potential recognition or disclosure in the financial statements through June 20, 2024, the date on which the financial statements were issued, and is not aware of any subsequent events that would require recognition or disclosure.


	2023				2022
(in thousands)	Master Trust Balances		Plan Interest in Master Trust Balances		Master Trust Balances		Plan Interest in Master Trust Balances
Investments at fair value:
WEC common stock fund	$	591,539	$	250,125	$	676,538	$	293,479
Mutual funds	1,228,942		628,333		1,671,065		882,577
Common collective trust funds	1,352,053		584,228		559,731		178,822
Total investments at fair value	3,172,534		1,462,686		2,907,334		1,354,878
Blended Rate Income Fund, at contract value	155,255		54,855		208,182		72,402
Total investments	$	3,327,789	$	1,517,541	$	3,115,516	$	1,427,280


	December 31, 2023
(in thousands)	Level 1		Level 2		Level 3		Total
Mutual funds	$	1,228,942	$	—	$	—	$	1,228,942
Total assets in the fair value hierarchy	$	1,228,942	$	—	$	—	$	1,228,942
Investments measured at net asset value (1)							1,943,592
Total investments at fair value	$	1,228,942	$	—	$	—	$	3,172,534


	December 31, 2022
(in thousands)	Level 1		Level 2		Level 3		Total
Mutual funds	$	1,671,065	$	—	$	—	$	1,671,065
Total assets in the fair value hierarchy	$	1,671,065	$	—	$	—	$	1,671,065
Investments measured at net asset value (1)							1,236,269
Total investments at fair value	$	1,671,065	$	—	$	—	$	2,907,334

(1) Certain investments that were measured at net asset value per share (or its equivalent) have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to investments at fair value noted in the table at the beginning of this Note 3.

The following tables summarize the investments measured using the net asset value per share practical expedient as of December 31, 2023 and 2022, respectively. There are no participant redemption restrictions for these investments; the redemption notice period is applicable only to the Plan.

Fair Value Estimated Using Net Asset Value per Share

(in thousands)

December 31, 2023

Investment

Fair Value

Unfunded Commitment

Redemption Frequency

Redemption Notice Period

WEC common stock fund (1)

591,539

—

Daily

None

Common collective trust funds

1,352,053

—

Daily

None

Fair Value Estimated Using Net Asset Value per Share

(in thousands)

December 31, 2022

Investment

Fair Value

Unfunded Commitment

Redemption Frequency

Redemption Notice Period

WEC common stock fund (1)

676,538

—

Daily

None

Common collective trust funds

559,731

—

Daily

None

(1) The fund invests primarily in the common stock of WEC Energy Group, as well as in short-term investments. The amount of short-term investments on any given business day will vary with the amount of cash awaiting investment and with participant activity in the fund (contributions, redemptions, exchanges, withdrawals, etc.).

The Master Trust holds investments in synthetic guaranteed investment contracts as part of the Blended Rate Income Fund ("BRIF") investment option. The synthetic contracts, as valued by the Trustee, and corresponding credit ratings, as of December 31, were as follows (in thousands):


(in thousands)	S&P Credit Rating 2023	2023		S&P Credit Rating 2022	2022
JP Morgan Chase & Co.	A+	$	23,410	A+	$	31,854
Nationwide Life Ins. Co.	A+	18,779		A+	25,552
Prudential Ins. Co. of America	AA-	18,740		AA-	25,500
Transamerica Premier Life	A+	18,612		A+	25,325
Pacific Life Ins. Co.	AA-	16,172		AA-	22,006
American General Life Ins. Co.	A+	15,768		A+	21,456
Metropolitan Life Ins. Co.	AA-	15,639		AA-	21,280
Lincoln National Life Ins. Co.	A+	12,369		A+	16,831
State Street Bank & Trust Co. - Boston	AA-	10,046		AA-	11,250
Massachusetts Mutual	AA+	4,358		AA+	3,510
Short-term investment fund		1,362			3,618
All contracts		$	155,255		$	208,182

A wrap contract is an agreement by another party, such as a bank or insurer, to make payments to the fund in certain circumstances. Wrap contracts are designed to allow a stable value fund, such as the BRIF, to protect the fund in extreme circumstances. In a typical wrap contract, the wrap issuer agrees to pay the fund the difference between the contract value and the market value of the covered assets once the market value has been totally exhausted.

The Trustee generally purchases wrap contracts from issuers rated in the top three long-term categories (A- or the equivalent and above) by any one of the nationally recognized statistical rating organizations. The Trustee expects a substantial percentage (up to 99%) of the BRIF's assets to be covered by wrap contracts, although they may change this target from time-to-time. Assets not covered by wrap contracts will generally be invested in money market instruments and cash equivalents to provide necessary liquidity for participant withdrawals and exchanges.

Wrap contracts accrue interest using the crediting rate formula. This formula is used to convert market value changes in the covered assets into income distributions in order to minimize the difference between the market and contract value of the covered assets over time. Using the crediting rate formula, an estimated future market value is calculated by compounding the fund's current market value at the fund's current yield to maturity for a period equal to the fund's duration. The crediting rate is the discount rate that equates that estimated future market value with the fund's current contract value. Crediting rates are reset monthly. The wrap contracts provide a guarantee that the crediting rate will not fall below 0%.

The crediting rate, and hence the fund's return, may be affected by many factors, including purchases and redemptions by shareholders. The precise impact on the fund depends on whether the market value of the covered assets is higher or lower than the contract value of those assets. If the market value of the covered assets is higher than their contract value, the crediting rate will ordinarily be higher than the yield of the covered assets. Under these circumstances, cash from new investors will tend to lower the crediting rate and the fund's return, and redemptions by existing shareholders will tend to increase the crediting rate and the fund's return.

If the market value of the covered assets is lower than their contract value, the crediting rate will ordinarily be lower than the yield of the covered assets. When market value is lower than contract value, the fund will have, for example, less than $10.00 in cash and bonds for every $10.00 in net asset value. Under these circumstances, cash from new investors will tend to increase the market value attributed to the covered assets and to increase the crediting rate and

the fund's return. Redemptions by existing shareholders will have the opposite effect, and will tend to reduce the market value attributed to remaining covered assets and to reduce the crediting rate and the fund's return. Generally, the market value of covered assets will tend to be higher than contract value after interest rates have fallen due to higher bond prices. Conversely, the market value of covered assets will tend to be lower than their contract value after interest rates have risen due to lower bond prices.

If the fund experiences significant redemptions when the market value is below the contract value, the fund's yield may be reduced significantly, to a level that is not competitive with other investment options. This may result in additional redemptions, which would tend to lower the crediting rate further. If redemptions continued, the fund's yield could be reduced to zero. If redemptions continued thereafter, the fund might have insufficient assets to meet redemption requests, at which point the fund would require payments from the wrap issuer to pay further shareholder redemptions.

The fund and the wrap contracts purchased by the fund are designed to pay all participant-initiated transactions at contract value. Participant-initiated transactions are those transactions allowed by the underlying defined contribution plan (typically this would include withdrawals for benefits, loans, or transfers to non-competing funds within the plan). However, the wrap contracts limit the ability of the fund to transact at contract value upon the occurrence of certain events. These events include:

Although it has not expressed any intent to do so, the Company has the right under the Plan to discontinue its contributions at any time and to terminate the Plan subject to the provisions of ERISA and of the Company's labor agreements. In the event of Plan termination, participants will become 100% vested in their accounts.

The Internal Revenue Service has determined and informed the Company by a letter dated June 11, 2018 that the Plan was designed in accordance with the applicable regulations of the IRC. The Plan has been amended since filing for the determination letter; however, the Company and the Plan administrator believe that the Plan is currently designed and operated in compliance with the applicable requirements of the IRC and the Plan continues to be tax-exempt.

Accounting principles generally accepted in the United States of America require Plan management to evaluate tax positions taken by the Plan and recognize a liability if the Plan has taken an uncertain position that more likely than not would not be sustained upon examination by the Internal Revenue Service. The Plan is subject to routine audits by taxing jurisdictions; however, there are currently no audits for any tax periods in progress.

The Master Trust invests in Company common stock. In addition, certain Master Trust investments represent shares of mutual funds and a collective trust fund managed by the Trustee. These transactions and the notes receivable from participants are exempt party-in-interest transactions under ERISA regulations.

As of December 31, 2023 and 2022, the Master Trust held 6,969,954 and 7,138,207 shares of WEC common stock with a fair value of $586,661,028 and $669,278,288, respectively, in the WEC Common Stock Fund. The WEC Common Stock Fund is unitized and in total held 6,821,894 and 7,014,111 units as of December 31, 2023 and 2022, respectively. The Master Trust recorded dividend income related to WEC common stock of $21,952,597 in 2023. The Master Trust recorded $53,729,622 and $71,134,368 in purchases and sales, respectively, of WEC common stock during 2023.

Fees paid by the Master Trust for investment management services were included as a reduction of the return earned on each fund. Administrative expenses paid by the Plan qualify as exempt party-in-interest transactions. The Company provides certain administrative and accounting services to the Plan at no cost.


(in thousands)	2023		2022
Net assets available for benefits per the financial statements	$	1,547,379	$	1,456,409
Adjustment from contract value to fair value	(3,269)		(4,845)
Net assets available for benefits per the Form 5500	$	1,544,110	$	1,451,564


(in thousands)	2023
Net increase in net assets available for benefits before net transfers per the financial statements	$	91,087
Less: Adjustment from contract value to fair value, beginning of period	(4,845)
Add: Adjustment from contract value to fair value, end of period	(3,269)
Net increase in net assets available for benefits per the Form 5500	$	92,663


(a), (b), (c)	(d)		(e)

Identity of Issue and Description of Investment	Cost		Current Value
Other:
Participant loans, interest rates ranging from 4.25% - 10.25%, maturing through April 2032 *	$	—	$	15,006,000
Total	$	—	$	15,006,000


			WEC Energy Group Retirement Savings Plan
			Name of Plan

Date:	June 20, 2024	By:	/s/ Lisa R. George
			Lisa R. George, Vice President of Human Resources for WEC Energy Group, Inc.


(in thousands)	2023
Interest and dividend income	$	61,596
Net appreciation in the fair value of investments	378,793
Net investment income	$	440,389
Plan interest in Master Trust net investment income	$	197,843


	2023		2022
Based on actual earnings	3.49	%	2.54	%
Based on interest rate credited to participants	1.84	%	1.78	%


23.1 Consent of Independent Registered Public Accounting Firm -- Crowe LLP

23.2 Consent of Independent Registered Public Accounting Firm -- Baker Tilly US , LLP


WEC ENERGY GROUP						Plan: 049
RETIREMENT SAVINGS PLAN						EIN: 39-1391525