Leigh R. Dobbs - 01 Aug 2025 Form 4 Insider Report for GMS Inc. (GMS)

Role: Chief Human Resources Officer
Signature: /s/ Craig D. Apolinsky, Attorney-in-Fact for Leigh R. Dobbs
Issuer symbol: GMS
Transactions as of: 01 Aug 2025
Net transactions value: $0
Form type: 4
Filing time: 05 Aug 2025, 16:33:47 UTC
Previous filing: 09 Sep 2024
Next filing: 08 Sep 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Dobbs Leigh R	Chief Human Resources Officer	GMS INC., 115 PERIMETER CENTER PLACE, SUITE 600, ATLANTA	/s/ Craig D. Apolinsky, Attorney-in-Fact for Leigh R. Dobbs	05 Aug 2025	0001944005

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	GMS	Common Stock	Options Exercise	$0	+507	+21%	$0.000000	2,957	01 Aug 2025	Direct	F1, F2
transaction	GMS	Common Stock	Tax liability	$0	-226	-7.6%	$0.000000	2,731	01 Aug 2025	Direct
transaction	GMS	Common Stock	Options Exercise	$0	+468	+17%	$0.000000	3,199	01 Aug 2025	Direct	F1
transaction	GMS	Common Stock	Tax liability	$0	-209	-6.5%	$0.000000	2,990	01 Aug 2025	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	GMS	Restricted Stock Units	Options Exercise	$0	-507	-50%	$0.000000	507	01 Aug 2025	Common Stock	507		Direct	F1, F3
transaction	GMS	Restricted Stock Units	Options Exercise	$0	-468	-33%	$0.000000	936	01 Aug 2025	Common Stock	468		Direct	F1, F4
transaction	GMS	Restricted Stock Units	Award	$0	+3,194		$0.000000	3,194	01 Aug 2025	Common Stock	3,194		Direct	F5, F6

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Restricted stock units vested and converted to shares of common stock on a one-for-one basis.
F2	Includes 160 shares acquired by the Reporting Person on June 30, 2025 pursuant to the GMS Inc. Employee Stock Purchase Plan.
F3	On August 1, 2023, the reporting person was granted 1,521 restricted stock units that vest in three equal annual installments beginning on the first anniversary of the grant date.
F4	On August 1, 2024, the reporting person was granted 1,404 restricted stock units that vest in three equal annual installments beginning on the first anniversary of the grant date.
F5	Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock
F6	Subject to the reporting person's continued employment with the issuer through the applicable vesting date, these restricted stock units are scheduled to vest in equal installments on each of August 1, 2026, August 1, 2027 and August 1, 2028 and will be settled, with respect to vested restricted stock units, in shares of the issuer's common stock no later than 30 days after each applicable vesting date.