[Form 4] Builders FirstSource, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Renz Maria, a director of Builders FirstSource, Inc. (BLDR), acquired 225 shares of the company's common stock on 09/01/2025 at a price of $138.68 per share, increasing her beneficial ownership to 2,808 shares. The filing states these shares were issued in lieu of cash compensation under the company's 2014 Incentive Plan and the Amended and Restated Director Compensation Policy. The Form 4 was executed via power of attorney by Minator Azemi on 09/03/2025. The report is a single-person filing and identifies the reporting person as a director of the issuer.

Insights

Securities Analyst

TL;DR: Director received 225 shares as compensation, modestly increasing insider ownership; transaction appears routine.

The filing documents a non-derivative acquisition of 225 common shares by director Renz Maria at $138.68 per share, dated 09/01/2025, with beneficial ownership after the transaction reported as 2,808 shares. The shares were issued in lieu of cash under the 2014 Incentive Plan per the director compensation policy. From a securities-disclosure perspective, this is a standard Section 16 filing that notifies the market of insider compensation settled in equity; no derivative activity, option exercise, or disposition is reported.

Corporate Governance Expert

TL;DR: Transaction reflects routine director compensation mechanics; disclosure meets Section 16 reporting requirements.

The Form 4 indicates the acquisition resulted from an established director compensation mechanism (2014 Incentive Plan and Amended and Restated Director Compensation Policy). The filing is executed by power of attorney and is a single reporting-person submission. There is no indication of amendments, multiple reporting parties, or atypical transaction codes. For governance monitoring, this is a routine equity issuance tied to compensation rather than a market purchase or sale.

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^*

Renz Maria

(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)
09/01/2025

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	09/01/2025		A(1)		225	A	$138.68	2,808	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. 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	09/03/2025
	** 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.

FAQ

What transaction did BLDR director Renz Maria report on Form 4?

Renz Maria acquired 225 shares of Builders FirstSource common stock on 09/01/2025 at $138.68 per share.

Why were the 225 shares issued to Renz Maria?

The shares were issued in lieu of cash compensation for services as a director under the company's 2014 Incentive Plan and Amended and Restated Director Compensation Policy.

How many BLDR shares does Renz Maria beneficially own after the transaction?

2,808 shares of common stock were reported as beneficially owned following the transaction.

Who signed the Form 4 for Renz Maria and when?

Minator Azemi, by power of attorney, signed the Form 4 on 09/03/2025.