mbc-20260626

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 11-K


x			ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
			For the fiscal year ended December 31, 2025

			OR


o			TRANSITION REPORT PURSUANT TO 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission file number 001-41545

A. Full title of the plan and the address of the plan, if different from that of the issuer named below:

MasterBrand, Inc. Retirement Savings Plan

B. Name of the issuer of the securities held pursuant to the plan and the address of its principal executive office:

MasterBrand, Inc.

3300 Enterprise Parkway, Suite 300

Beachwood, Ohio 44122

Table of Contents


			Page
Report of Independent Registered Public Accounting Firm			1
Financial Statements			3
Statements of Net Assets Available For Benefits			3
Statements of Changes in Net Assets Available For Benefits			4
Notes to Financial Statements			5

Schedule H, Line 4i—Schedule of Assets (Held at End of Year)			13
Signature			14
Exhibit Index			14
Exhibit 23.1 Consent of Independent Registered Public Accounting Firm			14

Note: Other supplemental schedules required by the Employee Retirement Income Security Act have been omitted because such supplemental schedules are not applicable to the MasterBrand, Inc. Retirement Savings Plan.

Report of Independent Registered Public Accounting Firm

Plan Participants and Associate Benefits Committee

MasterBrand, Inc. Retirement Savings Plan

Beachwood, Ohio

Opinion on the Financial Statements

We have audited the accompanying statements of net assets available for benefits of the MasterBrand, Inc. Retirement Savings Plan (the Plan) as of December 31, 2025 and 2024, the related statements of changes in net assets available for benefits for the years then ended, and the related notes (collectively, 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, 2025 and 2024, and the changes in net assets available for benefits for the years then ended, in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

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. 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 audits 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 audits included performing procedures to assess the risk 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 the Plan’s management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Supplemental Information

The supplemental information in the accompanying ERISA-required Supplemental Schedule H, line 4i- Schedule of Assets (Held at End of Year) as of December 31, 2025, have been subjected to audit procedures performed in conjunction with the audit of the Plan’s financial statements. The supplemental information is presented for the purpose of additional analysis and is not a required part of the financial statements but included supplemental information required by the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. The supplemental information is the responsibility of the Plan’s management. Our audit procedures included determining whether the supplemental information 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 information. In forming our opinion on the supplemental information, we evaluated whether the supplemental information, 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 information is fairly stated, in all material respects, in relation to the financial statements as a whole.

/s/ BDO USA, P.C.

We have served as the Plan’s auditor since 2024.

Grand Rapids, Michigan

June 26, 2026

MasterBrand, Inc. Retirement Savings Plan

STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS

As of December 31, 2025 and 2024


	December 31,		December 31,
(U.S. Dollars presented in millions)	2025		2024
Assets
Investments, at fair value	$	674.8	$	534.9
Receivables


Notes receivable from participants	9.9		9.4
Total receivables	9.9		9.4
Net assets available for benefits	$	684.7	$	544.3

See accompanying notes to financial statements.

MasterBrand, Inc. Retirement Savings Plan

STATEMENTS OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS

For the Years Ended December 31, 2025 and 2024


	For years ended
(U.S. Dollars presented in millions)	2025		2024
Additions to net assets attributed to:
Contributions
Participants	$	29.8	$	26.3
Employer	14.1		16.9
Rollover	5.3		10.3
Total contributions	49.2		53.5
Investment income
Interest and dividends	2.8		2.5
Net appreciation in fair value of investments	82.5		66.3
Total investment income	85.3		68.8
Interest income on notes receivable from participants	0.8		0.7
Total additions	135.3		123.0

Deductions to net assets attributed to:
Benefits paid to participants	66.0		62.7
Administrative expenses	0.8		0.7
Total deductions	66.8		63.4
Net increase prior to transfers	68.5		59.6

Transfers of assets to plan	71.9		—

Net assets available for benefits
Beginning of year	544.3		484.7
End of year	$	684.7	$	544.3

See accompanying notes to financial statements.

MasterBrand, Inc. Retirement Savings Plan

NOTES TO FINANCIAL STATEMENTS

As of and for the Years Ended December 31, 2025 and 2024

NOTE A - DESCRIPTION OF PLAN

The following provides a brief description of the Plan. Participants should refer to the Plan document for a more complete description of the Plan’s provisions.

General

MasterBrand, Inc. (“MasterBrand”) is a leading manufacturer of residential cabinets in North America with a portfolio of leading residential cabinetry products for the kitchen, bathroom and other parts of the home. References to “Cabinets,” “MasterBrand,” “the Company,” “we,” “our” and “us” refer to MasterBrand, Inc. and its consolidated subsidiaries, unless the context otherwise requires.

MasterBrand, Inc. maintains a tax-qualified defined contribution retirement plan, named the MasterBrand, Inc. Retirement Savings Plan (the “Plan”), covering eligible employees of MasterBrand and its operating companies. The Plan is designed to encourage and facilitate systematic savings and investment by eligible employees for their retirement. The Plan is maintained by MasterBrand, Inc. and is intended to comply with Section 401(a) of the Internal Revenue Code of 1986, as amended (the “Code”), and is subject to various provisions of the Code and the Employee Retirement Income Security Act of 1974, as amended (“ERISA”). The MasterBrand, Inc. Associate Benefits Committee serves as the Plan’s administrator (“Plan Administrator”). Fidelity Management Trust Company is the Plan trustee (“Trustee”).

MasterBrand and each of its operating companies that participate in the Plan are referred to collectively as the “Companies” and individually as a “Company.” Operating companies that participated in the Plan during the year ended December 31, 2025 included: MasterBrand Cabinets LLC, MasterBrand Home Products, LLC, and Norcraft Companies, L.P. Supreme Cabinetry Brands, Inc, Dura-Supreme, LLC, Bertch Cabinet, LLC, and SCB Transportation, LLC also participated in the Plan during the year ended December 31, 2025, effective July 2, 2025.

Contributions

Plan contributions are held by the Trustee and accumulated in individual participant accounts. Pursuant to the terms of the Plan, participants may make tax-deferred contributions and/or Roth 401(k) contributions of up to 50% of their “eligible compensation” (as defined under the Plan), subject to lower limits for “highly compensated employees” (as defined under the Code). In 2025 and 2024, the sum of each participant’s annual tax-deferred contributions and Roth 401(k) contributions were limited by the Code to $23,500 and $23,000, respectively. During the year in which a participant attains age 50 (and in subsequent years), the participant may elect to make additional unmatched, pretax “catch up” contributions and/or Roth “catch up” contributions. In 2025 and 2024, participants that met this requirement were permitted to make “catch up” contributions of up to $7,500.

The Plan permits participants to make after-tax contributions and to elect to automatically make after-tax contributions after reaching the dollar limitation on tax-deferred contributions and/or Roth 401(k) contributions. The sum of tax-deferred contributions, Roth 401(k) contributions, and after-tax contributions may not exceed 50% of the participant’s total eligible compensation (lower limitations apply to participants who are highly compensated employees).

Participants eligible to make tax-deferred contributions and/or Roth 401(k) contributions may roll over balances from another eligible tax-qualified retirement plan or individual retirement account into the Plan. Eligible employees who have neither enrolled in the Plan nor affirmatively declined enrollment in the Plan are automatically enrolled and are deemed to have elected to make tax-deferred contributions equal to 3% of their eligible compensation. In addition, participants who are automatically enrolled have their contribution rate increased by 1% (unless it would cause the participant’s deferral rate to exceed 6%) annually in May, unless they affirmatively declined participation in the automatic increase program.

MasterBrand, Inc. Retirement Savings Plan

NOTES TO FINANCIAL STATEMENTS

As of and for the Years Ended December 31, 2025 and 2024

Participants may elect to change or discontinue their participation in the automatic enrollment and automatic deferral rate increase programs at any time.

The Plan Administrator provides a matching contribution equal to 100% of participant deferrals, up to 5% of eligible compensation.

The Plan makes various investment funds available to participants to direct the investment of their accounts, including a Company stock fund, which gives participants the option to purchase shares of MasterBrand Common Stock.

Participant account balances are maintained to reflect each participant’s beneficial interest in each of the investment funds available under the Plan. Participant account balances are increased by participant contributions, including rollovers, and Company contributions and decreased by the amount of withdrawals and distributions. Income and losses on Plan assets are allocated to participants’ accounts based on the ratio of each participant’s account balance invested in an investment fund to the total of all participants’ account balances invested in that fund as of the preceding valuation date.

Contributions Receivable

Participant contributions and any related employer matching contributions are recognized in the period during which the Company makes the respective payroll deduction from the participant’s compensation. Non-elective/Profit sharing contributions are recorded in the relevant period in accordance with the terms in the Plan document.

Vesting

Participant contributions and earnings on those contributions vest immediately. For employer matching contributions, vesting in the matching contribution and earnings on those contributions occurs upon on the earliest of the following: (1) death; (2) termination of employment due to disability; (3) attainment of normal retirement age (generally 65); (4) termination of employment without fault, and (5) after one year of service.

Surplus in Plan Assets from Termination of Defined Benefit Pension Plan

In 2025, MasterBrand, Inc. terminated its defined benefit pension plan. As a result of this termination, the Company recognized a surplus in plan assets. The Company used the surplus to satisfy other Company obligations for qualified replacement plans, including the MasterBrand, Inc. Retirement Savings Plan. The surplus was used to fund $5.2 million of Company contributions to the MasterBrand, Inc. Retirement Savings Plan in 2025. As of December 31, 2025, there was $1.2 million of remaining surplus from the termination of the defined benefit pension plan that can be used to pay expenses related to the MasterBrand, Inc. Retirement Savings Plan.

Forfeitures

Forfeited non-vested accounts, including the remaining surplus from the termination of the defined benefit pension plan, totaled $1.7 million and $0.1 million as of December 31, 2025 and December 31, 2024, respectively. These accounts are used to reduce future Company contributions or to pay Plan expenses. No forfeitures were used to reduce Company contributions in 2025. Forfeitures were used to reduce Company contributions by $0.6 million in 2024. Forfeitures were used to pay $0.2 million and $0.1 million in Plan expenses in 2025 and 2024, respectively.

MasterBrand, Inc. Retirement Savings Plan

NOTES TO FINANCIAL STATEMENTS

As of and for the Years Ended December 31, 2025 and 2024

Notes Receivable from Participants

A participant may apply for up to two loans of at least $1,000 each from the vested portion of the participant’s account balance (excluding the portion in certain subaccounts). Loan amounts may not exceed the lesser of one-half of the participant’s vested balance or $50,000 where the maximum is reduced by the participant’s highest outstanding loan balance on any loans during the preceding twelve months. The term of any loan shall not exceed five years, unless the loan is related to the purchase of the participant’s principal residence, in which case the term of the loan shall not exceed ten years.

Each loan bears a rate of interest commensurate with prevailing market rates at the time of issuance. Repayment is made through payroll deductions so that the loan is repaid evenly over the term of the loan.

Distributions and Withdrawals

Benefits are distributed from a participant’s account upon death, retirement or other termination of employment and are payable in cash (generally, in a lump sum or installment payments and in some cases, in the form of an annuity) or rolled over (into a traditional or Roth IRA). The Plan also permits in-service withdrawals to be made by participants who have incurred a “hardship” as defined in the Plan, who have attained age 59-1/2, or who are performing qualified military service as described in the Plan.

NOTE B - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Accounting

The accompanying financial statements have been prepared on the accrual basis of accounting in accordance with U.S. generally accepted accounting principles (“GAAP”).

Use of Estimates

The preparation of the Plan’s financial statements in conformity with GAAP requires the Plan Administrator to make estimates and assumptions that affect the reported amounts of net assets available for Plan benefits and the changes in net assets available for Plan benefits and, when applicable, the disclosures of contingent assets and liabilities. Actual results could differ from those estimates.

Investment Valuation

The Plan’s investments are reflected at fair value. Fair value is defined as the price that would be received (i) to sell an asset, or (ii) paid to transfer a liability (an exit price) in an orderly transaction between market participants at the measurement date in the principal or most advantageous market for the asset or liability. Inputs are used in applying the various valuation techniques and broadly refer to the assumptions that market participants use to make valuation decisions, including assumptions about risk.

The Plan’s management follows ASC 820, Fair Value Measurements and Disclosures, which established a three-tiered hierarchy of inputs to establish a classification of fair value measurements for disclosure purposes. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements).

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

Level 1 inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. An active market for the asset or liability is a market in which transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis.

MasterBrand, Inc. Retirement Savings Plan

NOTES TO FINANCIAL STATEMENTS

As of and for the Years Ended December 31, 2025 and 2024

Level 2 inputs are other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly, including:

1.Quoted prices for similar assets or liabilities in active markets.

2.Quoted prices for identical or similar assets or liabilities in inactive markets.

3.Inputs other than quoted prices that are observable for the assets or liabilities (including volatilities).

4.Inputs that are derived principally from or corroborated by observable market data by correlation or other means.

If the asset or liability has a specified (contractual) term, the Level 2 input must be observable for substantially the full term of the asset or liability.

Level 3 inputs are unobservable for the asset or liability (including the entity’s own assumptions about the assumptions that market participants would use in pricing the asset or liability) and significant to the fair value measurement.

The asset’s 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 need to maximize the use of observable inputs and minimize the use of unobservable inputs.

The Plan’s investments as of December 31, 2025 and December 31, 2024 are presented at fair value, which has been determined based on the fair value of the underlying investments.

The investments held by the Plan and the methods and significant assumptions used by Plan management to estimate fair value of investments are presented below. As of December 31, 2025, there have been no changes in the methodologies used at December 31, 2024.

Mutual funds: Valued at the fair value of shares held by the plan at year end, which is obtained from an active market.

Self-directed brokerage accounts: Valued based on the underlying holdings which consist of various investment types, including mutual funds, common stock, and interest-bearing cash. While interest-bearing cash is valued at cost plus earnings from investments for the period, which approximates fair market value due to the short-term duration, all other investments in the self-directed brokerage accounts are valued in accordance with the valuation methods described above and below.

Company common stock: Valued at the closing price reported on the active market on which the security is traded.

MasterBrand, Inc. Retirement Savings Plan

NOTES TO FINANCIAL STATEMENTS

As of and for the Years Ended December 31, 2025 and 2024

Collective trust funds: Valued at the net asset value (“NAV”) of units of each bank collective trust. The NAV is used as a practical expedient to estimate fair value. The NAV, as provided by the Trustee, is based on the fair value of the underlying investments held by the funds less their liabilities. As of December 31, 2025 and December 31, 2024, there is no intention to sell or otherwise dispose of the investments in collective trust funds at prices different than their respective NAV. Participant transactions (purchases and sales) may occur daily. Were the Plan to initiate a full redemption of a collective trust, the investment advisor generally reserves the right to temporarily delay withdrawal from the trust in order to ensure that securities liquidations would be carried out in an orderly business manner. There were no significant unfunded commitments to the collective trust funds as of December 31, 2025 and December 31, 2024.

The preceding methods described may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, although the Plan believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in different fair value measurements at the reporting date.

See Note C – “Fair Value Measurements,” for the investments held by the Plan as of December 31, 2025 and December 31, 2024, by level within the fair value hierarchy.

Notes Receivable from Participants

Notes receivable from participants are measured at their unpaid principal balance plus any accrued but unpaid interest. Interest income is recorded on the accrual basis. Related fees are recorded as administrative expenses and are expensed when they are incurred. If a participant ceases to make loan repayments and the Plan Administrator deems the participant loan to be in default, the participant loan balance is reduced, and a benefit payment is recorded.

Income Recognition

Security transactions are accounted for on the trade-date basis. Dividend income is accrued on the ex- dividend date and interest income is recorded on the accrual basis. Both dividend income and interest income are recorded in the accompanying statements of changes in net assets available for benefits as interest and dividends. Net realized and unrealized appreciation is recorded in the accompanying statements of changes in net assets available for benefits as net appreciation in fair value of investments.

Benefits Paid to Participants

Distributions and withdrawals are recorded when paid.

Administrative Expenses

Certain investment expenses incurred by the Plan are netted against earnings prior to allocation to participant accounts and are recorded in the accompanying statements of changes in net assets available for benefits as administrative expenses. Participants’ accounts are directly charged for certain administrative expenses and any remaining expenses are paid directly by the Plan’s suspense account.

MasterBrand, Inc. Retirement Savings Plan

NOTES TO FINANCIAL STATEMENTS

As of and for the Years Ended December 31, 2025 and 2024

Transfers of Assets to Plan

During the year ended December 31, 2025, the Plan recognized $71.9 million of transfers of assets into the Plan.

Effective July 2, 2025, the Plan was amended to add Dura Supreme LLC and Dura Supreme Holdings, Inc. (“Supreme”) as a participating employer. The Supreme Cabinetry Brands Retirement Savings Plan was merged into the Plan and plan assets of approximately $65.5 million were transferred into the Plan during the year ended December 31, 2025.

Additionally, during 2025, $6.4 million was transferred in from the MasterBrand, Inc. Pension Plan to fund employer contributions. See Note A for further discussion.

NOTE C - FAIR VALUE MEASUREMENTS

The following table presents the Plan’s investments by level, within the fair value hierarchy as of December 31, 2025 and December 31, 2024:


	As of December 31, 2025
(U.S. Dollars presented in millions)	Level 1		Level 2		Level 3		Total
Mutual funds	$	35.4	$	—	$	—	$	35.4
Self-directed brokerage accounts	19.8		—		—		19.8
Company common stock	3.6		—		—		3.6
Total assets in the fair value hierarchy	$	58.8	$	—	$	—	$	58.8
Investments measured at NAV (a)
Collective trust funds (a)							616.0
Total investments at fair value							$	674.8

	As of December 31, 2024
	Level 1		Level 2		Level 3		Total
Mutual funds	$	33.7	$	—	$	—	$	33.7
Self-directed brokerage accounts	16.1		—		—		16.1
Company common stock	4.3		—		—		4.3
Total assets in the fair value hierarchy	$	54.1	$	—	$	—	$	54.1
Investments measured at NAV (a)
Collective trust funds (a)							480.8
Total investments at fair value							$	534.9

(a) In accordance with the Financial Accounting Standards Board (FASB) Accounting Standards Codification Subtopic 820-10, certain investments that were measured at NAV per share (or its equivalent) have not been classified in the fair value hierarchy. The fair value amounts presented in these tables are intended to permit reconciliation of the fair value hierarchy to the line items presented in the statements of net assets available for benefits.

MasterBrand, Inc. Retirement Savings Plan

NOTES TO FINANCIAL STATEMENTS

As of and for the Years Ended December 31, 2025 and 2024

NOTE D - RISKS AND UNCERTAINTIES

The Plan provides for various investments in mutual funds, self-directed brokerage accounts, Company common stock, and collective trust funds. Investment securities are exposed to various risks, such as interest rate risk, market risk and credit risk. Due to the level of risk associated with certain investment securities and the level of uncertainty related to changes in the value of investment securities, it is at least reasonably possible that changes in market value could materially affect participants’ account balances and the amounts reported in the statements of net assets available for benefits and the statements of changes in net assets available for benefits.

NOTE E - TAX STATUS

The Internal Revenue Service (“IRS”) issued an opinion letter dated June 30, 2020 indicating that the pre-approved defined contribution plan document adopted by the Plan, as then-designed, was in compliance with applicable requirements of the Internal Revenue Code (“IRC”). The Company has determined that it is eligible to, and has chosen to, rely on the current IRS pre-approved plan opinion letter. Once qualified, the Plan is required to operate in conformity with the IRC to maintain its qualification. The Plan has been amended subsequent to the IRS ruling. The Plan Administrator believes the Plan is being operated in compliance with the applicable requirements of the IRC and, therefore, believes the Plan is qualified. Therefore, no provision for income taxes has been included in the Plan’s financial statements.

GAAP requires Plan management to evaluate tax positions taken by the Plan and recognize a tax liability if the organization has taken an uncertain position that more likely than not would not be sustained upon examination by the IRS. The Plan is subject to routine audits by taxing authorities; however, there are currently no audits for any tax periods in progress.

NOTE F - RELATED-PARTY AND PARTY-IN-INTEREST TRANSACTIONS

Fidelity Management Trust Company is the Plan trustee. Fidelity Management Trust company does not manage any investments of the Plan.

At December 31, 2025, the Plan held 329,695 shares of MasterBrand, Inc. common stock, valued at $3.6 million, or a fair market value of $11.04 per share. During the 2025 plan year the plan acquired 81,511 shares of MasterBrand, Inc. common stock valued at $1.0 million and sold 45,177 shares valued at $0.5 million. At December 31, 2024, the Plan held 293,361 shares of MasterBrand, Inc. common stock, valued at $4.3 million, or a fair market value of $14.61 per share. During the 2024 plan year the plan acquired 102,997 shares of MasterBrand, Inc. common stock valued at $1.6 million and sold 25,696 shares valued at $0.3 million.

Notes receivable from participants are considered party-in-interest transactions. Additionally, transactions involving these investments are allowable party-in-interest transactions under ERISA.

NOTE G—PLAN TERMINATION

Although they have not expressed any intent to do so, the Companies have the right under the Plan to discontinue contributions at any time. MasterBrand, Inc., as Plan sponsor, has the right to terminate the Plan at any time subject to the provisions of ERISA. In the event of Plan termination, participants will become fully vested in the Company contribution portion of their accounts.

MasterBrand, Inc. Retirement Savings Plan

NOTES TO FINANCIAL STATEMENTS

As of and for the Years Ended December 31, 2025 and 2024

NOTE H—SUBSEQUENT EVENTS

Management of the Plan has evaluated the impact of events that have occurred after December 31, 2025, through June 26, 2026, which is the date the financial statements were available to be issued, for possible recognition or disclosure in those financial statements. On May 28, 2026 (the “Closing Date”), MasterBrand completed its previously announced transaction with American Woodmark Corporation (“American Woodmark”). Pursuant to the Agreement and Plan of Merger, dated as of August 5, 2025 (the “Merger Agreement”), on the Closing Date, Maple Merger Sub, Inc., a Virginia corporation and wholly-owned subsidiary of MasterBrand merged with and into American Woodmark at the effective time of the Merger, with American Woodmark continuing as the surviving entity. Pursuant to the Merger Agreement, each share of American Woodmark common stock outstanding was converted into the right to receive 5.150 shares of MasterBrand common stock, plus cash in lieu of any fractional shares. The Plan evaluated the impact of this merger and determined that it did not have an impact on the Plan’s net assets available for benefits or changes in net assets.

MasterBrand, Inc. Retirement Savings Plan

SCHEDULE H, LINE 4i – SCHEDULE OF ASSETS (HELD AT END OF YEAR)

EIN #88-3479920

PLAN NUMBER 008

As of December 31, 2025

(U.S. Dollars presented in millions)

(a)

(b)

(c)

(e)

Identity of issuer, borrower, lessor, or similar party

Description of investment including maturity date, rate of interest, collateral, par or maturity value

Current value at December 31, 2025

Collective Trust Funds

BlackRock Equity Index

Collective trust funds

149.3

BlackRock LifePath Index 2035

Collective trust funds

68.6

BlackRock LifePath Index 2030

Collective trust funds

68.4

BlackRock LifePath Index 2040

Collective trust funds

67.4

BlackRock LifePath Index 2045

Collective trust funds

50.9

BlackRock LifePath Index Retirement

Collective trust funds

47.5

BlackRock LifePath Index 2050

Collective trust funds

41.6

BlackRock LifePath Index 2055

Collective trust funds

32.4

BlackRock LifePath Index 2060

Collective trust funds

17.1

BlackRock Extended Market Index

Collective trust funds

15.3

Invesco Stable Value

Collective trust funds

14.2

BlackRock US Total Return

Collective trust funds

14.0

BlackRock ACWI ex-U.S. IMI Index

Collective trust funds

13.4

BlackRock LifePath Index 2065

Collective trust funds

8.9

BlackRock US Debt Index

Collective trust funds

6.5

BlackRock Strategic Completion Fund

Collective trust funds

0.5

T. Rowe Price Stable Value

Collective trust funds

—

Total Collective Trust Funds

616.0

Mutual Funds

William Blair Small Cap Growth

Mutual funds

15.9

Dodge & Cox International Stock

Mutual funds

14.4

Segall Bryant & Hamill Small Cap Value

Mutual funds

5.1

Total Mutual Funds

35.4

Self-Directed Brokerage Accounts

Total Self-Directed Brokerage Accounts

19.8

Company Common Stock

MasterBrand, Inc. Common Stock

Company common stock

3.6

Total Investments

674.8

Participant Loans

Loans (3.25% to 9.50%)

9.9

* Indicates a party-in-interest to the Plan.

Note: The “Cost” column (d) is not applicable because all the Plan’s investment options are participant directed.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the trustees (or other persons who administer the employee benefit plan) have duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized.


		MASTERBRAND, INC. RETIREMENT SAVINGS PLAN
June 26, 2026	By:	/s/ Shane Davis
		Shane Davis
		Associate Benefits Committee of MasterBrand, Inc.

EXHIBIT INDEX


Exhibit Number			Description
23.1			Consent of Independent Registered Public Accounting Firm

SEC Form 11-K filed by MasterBrand Inc.