Builders FirstSource (BLDR) director receives 299-share stock award

Rhea-AI Filing Summary

Builders FirstSource director Charles Dirkson reported an equity award of common stock. On March 1, 2026, he acquired 299 shares of Builders FirstSource, Inc. common stock at a price of $104.29 per share. The footnote explains this was an acquisition of shares in lieu of cash compensation for his services as a director under the company’s 2014 Incentive Plan and Amended and Restated Director Compensation Policy. After this award, Dirkson directly held 11,329 shares. The filing also notes an additional 5,000 shares held indirectly by a trust.

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

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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^*

Charles Dirkson R

(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)		299	A	$104.29	11,329	D
Common Stock, par value $0.01 per share								5,000	I	By 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).
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FAQ

What insider transaction did Builders FirstSource (BLDR) disclose for Charles Dirkson?

Builders FirstSource director Charles Dirkson reported receiving 299 shares of common stock as an award. The shares were granted instead of cash fees for board service under the company’s 2014 Incentive Plan and Amended and Restated Director Compensation Policy.

How many Builders FirstSource (BLDR) shares did Charles Dirkson hold after the reported award?

After the reported award, Charles Dirkson directly held 11,329 Builders FirstSource common shares. The filing also discloses an additional 5,000 shares held indirectly by a trust, reflecting both his direct and indirect ownership positions as of the transaction date.

Was the Builders FirstSource (BLDR) Form 4 transaction a purchase or an award?

The Form 4 transaction was an award, not an open-market purchase. Dirkson acquired 299 shares as compensation in stock rather than cash, pursuant to Builders FirstSource’s 2014 Incentive Plan and its Amended and Restated Director Compensation Policy.

At what price were the Builders FirstSource (BLDR) award shares valued for Charles Dirkson?

The 299 award shares for Charles Dirkson were reported at a value of $104.29 per share. This price reflects the grant value used for the compensation-in-stock transaction under Builders FirstSource’s director equity compensation arrangements.

Does the Builders FirstSource (BLDR) Form 4 show any indirect holdings for Charles Dirkson?

Yes. In addition to his direct holdings, the Form 4 lists 5,000 Builders FirstSource shares held indirectly by a trust. This indicates part of Dirkson’s ownership is structured through a trust, separate from the 11,329 directly held shares.