Builders FirstSource (BLDR) executive granted RSUs; shares withheld for taxes

Rhea-AI Filing Summary

Builders FirstSource President – Commercial Jonathan P. Cope reported equity compensation and related tax withholding, with no open‑market trading. He had 739 shares of common stock withheld at $88.09 per share to cover taxes on the vesting of previously granted restricted stock units.

He also received 5,676 restricted stock units under the company’s 2014 Incentive Plan, which vest in 33.33% increments on March 15 of 2027, 2028, and 2029, each converting into one share of common stock upon vesting. After these transactions, he directly holds 13,770 shares of common stock.

Insights

Equity compensation analyst

Routine stock-unit grant and tax withholding, with no open‑market trades.

Jonathan P. Cope, President – Commercial of Builders FirstSource, reported two compensation-related entries. The company withheld 739 shares at $88.09 per share to satisfy tax obligations on vesting restricted stock units, which is a non-market disposition.

He simultaneously acquired 5,676 restricted stock units under the 2014 Incentive Plan, vesting in three equal tranches on March 15, 2027, 2028, and 2029. Each unit will deliver one common share upon vesting, increasing future equity exposure tied to service and performance over time.

Following these actions, Cope directly owns 13,770 common shares. With no derivative positions listed in the derivative summary and no open‑market buys or sells, this filing primarily reflects standard executive compensation and associated tax treatment rather than a directional view on the stock.

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^*

Cope Jonathan P

(Last) (First) (Middle)

6031 CONNECTION DRIVE

SUITE 400

(Street)

IRVING 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 - Commercial

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		F(1)		739	D	$88.09	8,094	D
Common Stock, par value $0.01 per share	03/15/2026		A(2)		5,676	A	$0	13,770	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 shares withheld to pay tax withholding requirements on vesting of previously granted restricted stock units.

2. Reflects the acquisition of restricted stock units pursuant to the Corporation's 2014 Incentive Plan. The restricted stock units vest in 33.33% 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.

	/s/ Minator Azemi, by power of attorney	03/17/2025
	** 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 did Builders FirstSource (BLDR) executive Jonathan Cope report in this Form 4?

Jonathan P. Cope reported a tax-withholding disposition of 739 shares and a grant of 5,676 restricted stock units. These entries reflect routine equity compensation and related tax settlement, not open-market buying or selling activity in Builders FirstSource common stock.

Were any Builders FirstSource (BLDR) shares bought or sold on the open market in this filing?

No open-market purchases or sales occurred in this filing. Shares were withheld to cover tax obligations on vesting restricted stock units, and new restricted stock units were granted as compensation, both of which are non-market transactions handled directly by the company.

How many Builders FirstSource (BLDR) shares does Jonathan Cope own after these transactions?

After these transactions, Jonathan P. Cope directly holds 13,770 shares of Builders FirstSource common stock. This total reflects the net effect of 739 shares withheld for taxes and the grant of additional restricted stock units that will convert into shares upon future vesting.

What are the vesting terms of Jonathan Cope’s new Builders FirstSource restricted stock units?

Cope’s 5,676 restricted stock units vest in three equal 33.33% installments on March 15, 2027, March 15, 2028, and March 15, 2029. Each vested restricted stock unit entitles him to receive one share of Builders FirstSource common stock, subject to those vesting dates.

Why were 739 Builders FirstSource shares withheld from Jonathan Cope?

The 739 shares were withheld to satisfy tax withholding requirements triggered by the vesting of previously granted restricted stock units. Instead of paying cash taxes separately, a portion of the vested shares was retained by the company to cover the associated tax liability.

Does this Form 4 indicate a change in Jonathan Cope’s commitment to Builders FirstSource (BLDR)?

The filing mainly reflects standard equity compensation and tax withholding, not discretionary trading. Cope received a multi-year restricted stock unit award vesting through 2029, which continues to tie a portion of his compensation to the company’s future stock performance over time.