MasterBrand (MBC) COO awarded 39442 RSUs in new equity grant

Rhea-AI Filing Summary

Wanninger Kurt reported acquisition or exercise transactions in this Form 4 filing.

MasterBrand, Inc. executive Kurt Wanninger, EVP & Chief Operations Officer, received a grant of 39442 restricted stock units (RSUs) of common stock on March 16, 2026. The grant was recorded at a price of $0.00 per share as a compensation award, not a market purchase.

Each RSU represents one share of common stock and vests in equal one-third increments over three years beginning on February 28, 2027. After this grant, Wanninger directly holds 251199 shares, including 56645 unvested RSUs, 676 shares in the company 401(k) plan, and 40348 deferred compensation shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Wanninger Kurt

Role EVP & Chief Operations Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.01 per share	39,442	$0.00	--

Holdings After Transaction: Common Stock, par value $0.01 per share — 251,199 shares (Direct)

Footnotes (1)

1. Represents shares of restricted stock units ("RSUs") granted to the reporting person. Each RSU represents a contingent right to receive one share of common stock of MasterBrand, Inc. The RSUs vest in equal one-third increments over three years beginning on February 28, 2027. Includes 56,645 RSUs that have not yet vested, 676 shares held in the issuer's 401(k) plan, and 40,348 shares, the receipt of which has been deferred under the issuer's deferred compensation plan.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Wanninger Kurt

(Last) (First) (Middle)

3300 ENTERPRISE PARKWAY

SUITE 300

(Street)

BEACHWOOD OHIO 44122

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MasterBrand, Inc. [ MBC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP & Chief Operations Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/16/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, par value $0.01 per share	03/16/2026		A		39,442(1)	A	$0	251,199(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents shares of restricted stock units ("RSUs") granted to the reporting person. Each RSU represents a contingent right to receive one share of common stock of MasterBrand, Inc. The RSUs vest in equal one-third increments over three years beginning on February 28, 2027.

2. Includes 56,645 RSUs that have not yet vested, 676 shares held in the issuer's 401(k) plan, and 40,348 shares, the receipt of which has been deferred under the issuer's deferred compensation plan.

Remarks:

	/s/ Andrean R. Horton, attorney-in-fact for Kurt Wanninger	03/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did MasterBrand (MBC) report in this Form 4 for Kurt Wanninger?

MasterBrand reported that EVP & Chief Operations Officer Kurt Wanninger received 39442 restricted stock units as a compensation grant. These RSUs convert into common shares over time, increasing his equity-based stake in the company as they vest.

How many MasterBrand (MBC) RSUs were granted to Kurt Wanninger and on what date?

Kurt Wanninger was granted 39442 restricted stock units of MasterBrand common stock on March 16, 2026. The RSUs are a form of equity compensation and do not involve an open-market purchase price at the time of grant.

What is the vesting schedule for Kurt Wanninger’s new MasterBrand (MBC) RSUs?

The 39442 RSUs vest in equal one-third increments over three years beginning on February 28, 2027. Each vesting tranche delivers common shares, aligning Wanninger’s compensation with the company’s long-term performance and share price over that period.

Was Kurt Wanninger’s MasterBrand (MBC) Form 4 transaction a stock purchase?

No, the Form 4 shows a grant of 39442 RSUs at a price of $0.00 per share. This indicates an equity award as part of compensation, not an open-market stock purchase involving cash paid by the executive.

What are Kurt Wanninger’s total MasterBrand (MBC) holdings after this RSU grant?

After the grant, Wanninger directly holds 251199 shares in total. This includes 56645 unvested RSUs, 676 shares in the company’s 401(k) plan, and 40348 shares whose receipt has been deferred under MasterBrand’s deferred compensation plan.

What role does Kurt Wanninger hold at MasterBrand (MBC) in this Form 4?

Kurt Wanninger is identified as Executive Vice President & Chief Operations Officer of MasterBrand. The RSU grant ties a portion of his compensation to future company performance and share value, reinforcing alignment with shareholders over the multi-year vesting period.