Builders FirstSource (NYSE: BLDR) CFO gifts 2,000 shares, updates holdings

Rhea-AI Filing Summary

Builders FirstSource, Inc. executive vice president and chief financial officer Minator Azemi reported an insider transaction involving a charitable transfer of company stock. On 12/11/2025, Azemi made a gift of 2,000 shares of Builders FirstSource common stock, coded as a “G” transaction, to a donor advised fund at a price of $0 per share. After this transaction, Azemi beneficially owned 39,489 shares indirectly through a spouse and 27,482 shares directly.

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^*

Beckmann Pete

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
12/11/2025

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	12/11/2025		G(1)		2,000	D	$0	39,489	I	By spouse
Common Stock, par value $0.01 per share								27,482	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 the gift of common stock to a donor advised fund.

	/s/ Minator Azemi, by power of attorney	12/15/2025
	** 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 insider transaction did the Builders FirstSource (BLDR) CFO report in this Form 4?

The filing shows that EVP & CFO Minator Azemi reported a “G” code transaction on 12/11/2025, reflecting a gift of 2,000 shares of Builders FirstSource common stock to a donor advised fund at a price of $0 per share.

How many Builders FirstSource (BLDR) shares were gifted in this transaction?

The reporting person gifted 2,000 shares of Builders FirstSource common stock, as indicated in Table I with transaction code G and an explanation that it reflects a gift to a donor advised fund.

What is the reporting person’s role at Builders FirstSource (BLDR)?

The reporting person is identified as an officer of Builders FirstSource, serving as EVP & CFO, and filed the Form 4 as one reporting person.

How many Builders FirstSource shares does the CFO beneficially own after the reported gift?

Following the reported transaction, the CFO beneficially owned 39,489 shares indirectly, held by a spouse, and 27,482 shares directly, as shown in the beneficial ownership column of Table I.

Was the Builders FirstSource (BLDR) transaction a sale for value or a gift?

The transaction was a gift, not a sale for value. It is coded as transaction type G with a reported price of $0 per share, and the explanation states it reflects the gift of common stock to a donor advised fund.

How is the indirect ownership of Builders FirstSource (BLDR) shares described for the CFO?

The filing states that 39,489 shares are held indirectly, with the nature of indirect beneficial ownership described as “By spouse” in Table I.