Builders FirstSource director granted 371 shares

Builders FirstSource, Inc. director William B. Hayes acquired 371 shares of common stock on March 1, 2026 at $104.29 per share.

Accepted by SEC EDGAR 03/03/2026 - 04:05 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Builders FirstSource, Inc. director William B. Hayes acquired 371 shares of common stock on March 1, 2026 at $104.29 per share. These shares were granted in lieu of cash compensation for his board service under the company’s 2014 Incentive Plan and Amended and Restated Director Compensation Policy.

After this grant, Hayes directly holds 16,572 shares. He also reports indirect ownership of 14,593 shares held by a Spousal Lifetime Access Trust.

Insider Trade Summary

Grant/Award: 371 shares

Grant/Award 1 txn

Insider Hayes William B

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.01 per share	371	$104.29	$39K
Holding	Common Stock, par value $0.01 per share	--	--	--

Holdings After Transaction: Common Stock, par value $0.01 per share — 16,572 shares (Direct); Common Stock, par value $0.01 per share — 14,593 shares (Indirect, By Spousal Lifetime Access Trust)

Holdings Before and After: Common Stock, par value $0.01 per share, 16,201 to 16,572 shares (Direct)

Footnotes (1)

1. F1. Reflects acquisition of shares in lieu of cash compensation for services as a director under the Corporation's 2014 Incentive Plan pursuant to the Corporation's Amended and Restated Director Compensation Policy.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did BLDR director William B. Hayes report?

William B. Hayes reported receiving 371 Builders FirstSource shares as a stock grant. The grant represents compensation for his service as a director, taken in shares instead of cash under the company’s 2014 Incentive Plan and Director Compensation Policy.

At what price were the BLDR shares granted to William B. Hayes valued?

The 371 Builders FirstSource shares granted to William B. Hayes were valued at $104.29 per share. This per-share value is used to measure the equity portion of his director compensation in lieu of cash fees for board service.

How many Builders FirstSource shares does William B. Hayes own after this Form 4?

After the March 1, 2026 grant, William B. Hayes directly owns 16,572 Builders FirstSource shares. He also reports indirect ownership of 14,593 additional shares held through a Spousal Lifetime Access Trust, as disclosed in the Form 4 filing.

Why did William B. Hayes receive Builders FirstSource shares instead of cash?

Hayes received Builders FirstSource shares instead of cash as part of the company’s director compensation structure. The Form 4 notes the shares reflect fees taken in stock under the 2014 Incentive Plan and the Amended and Restated Director Compensation Policy.

What type of Form 4 transaction code applies to William B. Hayes’ BLDR grant?

The transaction is coded “A” on Form 4, meaning a grant, award, or other acquisition. This indicates Hayes did not buy the shares on the open market but received them as equity compensation for his role as a director.

How are indirect BLDR shares held for William B. Hayes reported?

The Form 4 lists 14,593 Builders FirstSource shares as indirectly owned by William B. Hayes. These shares are held by a Spousal Lifetime Access Trust, which is specifically identified as the nature of his indirect ownership in the filing.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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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^*

Hayes William B

(Last) (First) (Middle)

C/O BUILDERS FIRSTSOURCE, INC.

6031 CONNECTION DR., STE. 400

(Street)

IRVING TX 75039

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Builders FirstSource, Inc. [ BLDR ]

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
03/01/2026

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

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

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

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	03/01/2026		A(1)		371	A	$104.29	16,572	D
Common Stock, par value $0.01 per share								14,593	I	By Spousal Lifetime Access Trust

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. Reflects acquisition of shares in lieu of cash compensation for services as a director under the Corporation's 2014 Incentive Plan pursuant to the Corporation's Amended and Restated Director Compensation Policy.

	/s/ Minator Azemi, by power of attorney	03/03/2026
	** 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.