Builders FirstSource (NYSE: BLDR) exec covers RSU taxes with 2,842 shares

Rhea-AI Filing Summary

Builders FirstSource, Inc. reported a routine insider transaction by President – Tech & Digital, Narayan Gayatri. On June 13, 2026, 2,842 shares of common stock were withheld at $77.77 per share to satisfy tax obligations on vesting restricted stock units, rather than sold on the open market.

After this tax-withholding disposition, Gayatri directly holds 28,252 shares of Builders FirstSource common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Narayan Gayatri

Role President - Tech & Digital

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock, par value $0.01 per share	2,842	$77.77	$221K

Holdings After Transaction: Common Stock, par value $0.01 per share — 28,252 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares withheld for taxes: 2,842 shares Withholding price: $77.77 per share Shares held after transaction: 28,252 shares +1 more

4 metrics

Shares withheld for taxes 2,842 shares Tax-withholding disposition on June 13, 2026

Withholding price $77.77 per share Price applied to shares withheld for tax obligations

Shares held after transaction 28,252 shares Direct BLDR holdings after tax-withholding disposition

Transaction code F Payment of tax liability by delivering securities

Key Terms

restricted stock units, tax withholding requirements, tax-withholding disposition, Common Stock, par value $0.01 per share

4 terms

restricted stock units financial

"Reflects shares withheld to pay tax withholding requirements on vesting of previously granted restricted stock units."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding requirements financial

"Reflects shares withheld to pay tax withholding requirements on vesting of previously granted restricted stock units."

tax-withholding disposition financial

"transaction_action": "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

Common Stock, par value $0.01 per share financial

"security_title": "Common Stock, par value $0.01 per share""

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Form 4 Insider Transactions: What Each Field Means →

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^*

Narayan Gayatri

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President - Tech & Digital

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/13/2026

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	06/13/2026		F(1)		2,842	D	$77.77	28,252	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.

	/s/ Minator Azemi, by power of attorney	06/16/2026
	** 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)

FAQ

What insider transaction did BLDR executive Narayan Gayatri report?

Narayan Gayatri reported a tax-withholding disposition of 2,842 BLDR shares. The shares were withheld to cover tax obligations upon vesting of restricted stock units, rather than sold in the open market, and are a routine part of equity compensation.

Was the BLDR Form 4 transaction an open-market sale of shares?

No, the BLDR Form 4 does not report an open-market sale. It shows 2,842 shares withheld to satisfy tax withholding requirements on vesting restricted stock units, which is a non-market, compensation-related disposition rather than a discretionary sale of shares.

How many Builders FirstSource (BLDR) shares were withheld for taxes?

A total of 2,842 BLDR common shares were withheld for taxes. These shares were withheld at a price of $77.77 per share to cover tax obligations arising from the vesting of previously granted restricted stock units to executive Narayan Gayatri.

What is Narayan Gayatri’s BLDR shareholding after the Form 4 transaction?

After the transaction, Narayan Gayatri holds 28,252 BLDR shares directly. This post-transaction balance reflects the remaining ownership after 2,842 shares were withheld to satisfy tax withholding on vested restricted stock units, as disclosed in the Form 4 filing.

What does a tax-withholding disposition mean for BLDR shareholders?

A tax-withholding disposition is an administrative step, not a market trade. BLDR shares were withheld from an executive’s equity award to pay tax obligations on vesting, which is common in stock-based compensation and does not represent an elective buy or sell decision.