Builders FirstSource director granted 489 shares

Builders FirstSource director Maria Renz received stock in lieu of cash fees, modestly increasing her equity stake.

Rhea-AI Filing Summary

Builders FirstSource, Inc. (BLDR) reported that director Maria Renz received a grant of 489 shares of common stock on September 10, 2026. The shares were acquired at $0.00 per share in lieu of cash compensation under the company’s 2026 Incentive Plan, and she now holds 6,870 shares directly.

Insider Trade Summary

Grant/Award: 489 shares

Grant/Award 1 txn

Insider Renz Maria

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.01 per share F1	489	$0.00	$0.00

Holdings After Transaction: Common Stock, par value $0.01 per share — 6,870 shares (Direct)

Footnotes (1)

1. F1. Reflects acquisition of shares in lieu of cash compensation for services as a director under the Corporation's 2026 Incentive Plan pursuant to the Corporation's Amended and Restated Director Compensation Policy.

Key Figures

Shares granted: 489 shares Price per share: $0.00 per share Post-transaction holdings: 6,870 shares +2 more

5 metrics

Shares granted 489 shares Common stock granted to director Maria Renz on September 10, 2026

Price per share $0.00 per share Reported transaction price for the 489-share stock grant

Post-transaction holdings 6,870 shares Director Maria Renz’s direct ownership after the grant

Transaction date September 10, 2026 Date of the stock grant reported on Form 4

Transaction type Grant, award, or other acquisition Code A non-derivative acquisition of common stock

Key Terms

2026 Incentive Plan, in lieu of cash compensation, Amended and Restated Director Compensation Policy

3 terms

2026 Incentive Plan financial

"under the Corporation's 2026 Incentive Plan pursuant to the"

A 2026 incentive plan is a company’s formal program, often named for a year, that authorizes awards like stock options, restricted shares, and cash bonuses to employees and executives to motivate performance and retain talent. For investors it matters because the plan creates potential new shares or payouts that can dilute existing ownership and align management’s choices with company goals—think of it as a reward budget that affects both pay incentives and share value.

in lieu of cash compensation financial

"Reflects acquisition of shares in lieu of cash compensation"

Amended and Restated Director Compensation Policy financial

"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 report for director Maria Renz?

BLDR reported that director Maria Renz received a grant of 489 shares of common stock on September 10, 2026, acquired at $0.00 per share as compensation for board service under the company’s 2026 Incentive Plan.

How many Builders FirstSource (BLDR) shares does Maria Renz own after this Form 4 transaction?

After the reported grant, director Maria Renz directly owns 6,870 shares of Builders FirstSource common stock, according to the Form 4 filing’s post-transaction holdings figure.

Was the BLDR Form 4 transaction a market purchase or part of director compensation?

The Form 4 shows the 489-share acquisition was part of director compensation, with shares received in lieu of cash compensation under the 2026 Incentive Plan and the Amended and Restated Director Compensation Policy, not an open-market purchase.

What price per share is reported for the Maria Renz BLDR stock grant?

The filing reports a transaction price of $0.00 per share for the 489-share grant to director Maria Renz, reflecting that the shares were issued as non-cash compensation for services as a director.

Is the Maria Renz BLDR Form 4 transaction under a Rule 10b5-1 trading plan?

The filing indicates no Rule 10b5-1 plan for this transaction, as the related checkbox is not affirmed, and the footnote describes the grant solely as compensation in lieu of cash fees.

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

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Available on EDGAR 09/14/2026 - 04:06 PM EDT Accepted by SEC EDGAR 09/14/2026 - 04:05 PM EDT Learn about SEC filing dates

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^*

Renz Maria

(Last) (First) (Middle)

C/O BUILDERS FIRSTSOURCE, INC.

6031 CONNECTION DR., STE. 400

(Street)

IRVING TEXAS 75039

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/10/2026

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	09/10/2026		A(1)		489	A	$0.00	6,870	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 2026 Incentive Plan pursuant to the Corporation's Amended and Restated Director Compensation Policy.

	/s/ Alena Brenner, by power of attorney	09/14/2026
	** 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)