MasterBrand (MBC) tech chief granted 57,646 RSUs in new equity award

Rhea-AI Filing Summary

Grewal Navneet reported acquisition or exercise transactions in this Form 4 filing.

MasterBrand, Inc. executive Navneet Grewal, EVP and Chief Digital & Tech Officer, received a grant of 57,646 restricted stock units (RSUs) of common stock on March 16, 2026. The RSUs vest in three equal annual installments beginning on February 28, 2027. After this award, Grewal holds 213,913 shares, including 83,219 unvested RSUs.

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

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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^*

Grewal Navneet

(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 Digital & Tech Off.

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		57,646(1)	A	$0	213,913(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 83,219 RSUs that have not yet vested.

Remarks:

	/s/ Andrean R. Horton, attorney-in-fact for Nanveet Grewal	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 insider transaction did MasterBrand (MBC) report for Navneet Grewal?

MasterBrand reported that EVP and Chief Digital & Tech Officer Navneet Grewal received a grant of 57,646 restricted stock units. These RSUs are a form of equity compensation that convert into common shares over time if vesting conditions are met.

How many shares does Navneet Grewal hold after this Form 4 for MasterBrand (MBC)?

Following the reported award, Navneet Grewal holds 213,913 shares of MasterBrand common stock. This total includes existing holdings plus the new RSU grant, providing a clearer picture of his overall equity-based compensation and ownership stake.

How do the new RSUs for MasterBrand (MBC) executive Navneet Grewal vest?

The 57,646 restricted stock units granted to Navneet Grewal vest in three equal installments. Vesting occurs annually over three years, beginning on February 28, 2027, aligning the award with longer-term service and performance at MasterBrand.

What portion of Navneet Grewal’s MasterBrand (MBC) equity is still unvested?

The filing notes that Grewal’s holdings include 83,219 restricted stock units that have not yet vested. These unvested RSUs represent future potential shares that will only convert to common stock as vesting conditions are satisfied over time.

Was the MasterBrand (MBC) RSU transaction for Navneet Grewal a market purchase or sale?

The transaction was reported as a grant or award acquisition, not a market trade. Grewal received 57,646 RSUs at a reported price of $0.00 per unit, indicating equity compensation granted by the company rather than open-market buying or selling.