Builders FirstSource exec granted stock awards

Builders FirstSource, Inc. executive Vaughn Paul, President - Central Division, reported equity compensation activity in common stock.

Rhea-AI Filing Summary

Builders FirstSource, Inc. executive Vaughn Paul, President - Central Division, reported equity compensation activity in common stock. He acquired 7,663 restricted stock units under the 2014 Incentive Plan, which vest in 33.3% increments on each of March 15, 2027-2029.

He also acquired 2,237 shares through the vesting of performance-based restricted stock units. To cover related tax withholding requirements, 2,622 shares were withheld at $88.09 per share. Following these transactions, he directly holds 37,358 shares of Builders FirstSource common stock.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider Vaughn Paul

Role President - Central Division

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.01 per share	7,663	$0.00	$0.00
Grant/Award	Common Stock, par value $0.01 per share	2,237	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock, par value $0.01 per share	2,622	$88.09	$231K

Holdings After Transaction: Common Stock, par value $0.01 per share — 37,358 shares (Direct)

Footnotes (3)

1. F1. Reflects the acquisition of restricted stock units pursuant to the Corporation's 2014 Incentive Plan. The restricted stock units vest in 33.3% increments on each of March 15, 2027-2029 and entitle the reporting person to one share of common stock for each restricted stock unit that vests.
2. F2. Reflects the vesting of performance-based restricted stock units granted pursuant to the Corporation's 2014 Incentive Plan.
3. F3. Reflects shares withheld to pay tax withholding requirements on vesting of previously granted performance-based restricted stock units and restricted stock units.

FAQ

What did Builders FirstSource (BLDR) executive Vaughn Paul report in this Form 4?

Vaughn Paul reported routine equity compensation activity involving Builders FirstSource stock. He received new restricted stock units, saw earlier performance-based awards vest into shares, and had some shares withheld to satisfy tax obligations, resulting in an updated direct ownership position.

How many restricted stock units did Vaughn Paul receive from Builders FirstSource (BLDR)?

He received 7,663 restricted stock units under Builders FirstSource’s 2014 Incentive Plan. These units represent the right to receive one share of common stock per unit as they vest over time, subject to the plan’s terms and vesting schedule.

What are the vesting terms of Vaughn Paul’s new Builders FirstSource restricted stock units?

The 7,663 restricted stock units vest in 33.3% increments on March 15 of 2027, 2028, and 2029. Upon each vesting date, Mr. Paul becomes entitled to receive one share of Builders FirstSource common stock for each vested unit.

Why were 2,622 Builders FirstSource (BLDR) shares withheld from Vaughn Paul?

The 2,622 shares were withheld to satisfy tax withholding requirements tied to the vesting of previously granted performance-based and time-based restricted stock units. This is recorded with transaction code F and is not an open-market sale of shares.

How many Builders FirstSource shares does Vaughn Paul own after these transactions?

After the reported grant, vesting, and tax withholding transactions, Vaughn Paul directly holds 37,358 shares of Builders FirstSource common stock. This figure reflects his updated ownership following all Form 4 entries on the reported transaction date.

Were any of Vaughn Paul’s Builders FirstSource (BLDR) transactions open-market buys or sells?

No, the filing shows no open-market purchases or sales. Reported activities are equity awards and vesting (transaction code A) plus shares withheld to cover taxes (transaction code F), all occurring under Builders FirstSource’s 2014 Incentive Plan framework.

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Accepted by SEC EDGAR 03/17/2026 - 07:43 PM 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^*

Vaughn Paul

(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)
	President - Central Division

3. Date of Earliest Transaction (Month/Day/Year)
03/15/2026

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	03/15/2026		A(1)		7,663	A	$0.00	37,743	D
Common Stock, par value $0.01 per share	03/15/2026		A(2)		2,237	A	$0.00	39,980	D
Common Stock, par value $0.01 per share	03/15/2026		F(3)		2,622	D	$88.09	37,358	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 acquisition of restricted stock units pursuant to the Corporation's 2014 Incentive Plan. The restricted stock units vest in 33.3% increments on each of March 15, 2027-2029 and entitle the reporting person to one share of common stock for each restricted stock unit that vests.

2. Reflects the vesting of performance-based restricted stock units granted pursuant to the Corporation's 2014 Incentive Plan.

3. Reflects shares withheld to pay tax withholding requirements on vesting of previously granted performance-based restricted stock units and restricted stock units.

	/s/ Minator Azemi, by power of attorney	03/17/2026
	** 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.