SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES 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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1. Name and Address of Reporting Person* Coliseum Capital Management, LLC (Last) (First) (Middle) 105 ROWAYTON AVE. (Street) ROWAYTON CT 06853 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 03/03/2021	3. Issuer Name and Ticker or Trading Symbol GMS Inc. [ GMS ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock, par value $0.01 per share	4,270,393	I	See footnotes(1)(2)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person* Coliseum Capital Management, LLC (Last) (First) (Middle) 105 ROWAYTON AVE. (Street) ROWAYTON CT 06853 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Coliseum Capital, LLC (Last) (First) (Middle) 105 ROWAYTON AVE. (Street) ROWAYTON CT 06853 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* COLISEUM CAPITAL PARTNERS, L.P. (Last) (First) (Middle) 105 ROWAYTON AVE. (Street) ROWAYTON CT 06853 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Coliseum Capital Co-Invest III, L.P. (Last) (First) (Middle) 105 ROWAYTON AVE. (Street) ROWAYTON CT 06853 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Gray Adam (Last) (First) (Middle) 105 ROWAYTON AVE. (Street) ROWAYTON CT 06853 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Shackelton Christopher S (Last) (First) (Middle) 105 ROWAYTON AVE. (Street) ROWAYTON CT 06853 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. These securities are directly held as follows: (a) 3,025,745 shares of common stock, par value $0.01 per share ("Common Stock"), by Coliseum Capital Partners, L.P. ("CCP"), an investment limited partnership of which Coliseum Capital, LLC, a Delaware limited liability company ("CC"), is general partner and for which Coliseum Capital Management, LLC, a Delaware limited liability company ("CCM"), serves as investment adviser; (b) 989,448 shares of Common Stock by a separate account investment advisory client of CCM (the "Separate Account"); and (c) 255,200 shares of Common Stock by Coliseum Capital Co-Invest III, L.P. ("CCC III"), an investment limited partnership for which CCM serves as investment advisor.

2. Christopher S. Shackelton ("Shackelton") and Adam Gray ("Gray") are managers of and have an ownership interest in each of CCM and CC. Each of Shackelton, Gray, CCP, the Separate Account, CC, CCC III and CCM disclaims beneficial ownership of these securities except to the extent of that person's pecuniary interest therein.

Remarks:

	Coliseum Capital Management, LLC, By: /s/ Chivonne Cassar, Chivonne Cassar, Attorney-in-fact	03/05/2021
	Coliseum Capital, LLC, By: /s/ Chivonne Cassar, Chivonne Cassar, Attorney-in-fact	03/05/2021
	Coliseum Capital Partners, L.P., By: Coliseum Capital, LLC, its General Partner, By: /s/ Chivonne Cassar, Chivonne Cassar, Attorney-in-fact	03/05/2021
	Coliseum Capital Co-Invest III, L.P., By: Coliseum Capital, LLC, General Partner, By: /s/ Chivonne Cassar, Chivonne Cassar, Attorney-in-fact	03/05/2021
	Adam Gray, By: /s/ Chivonne Cassar, Chivonne Cassar, Attorney-in-fact	03/05/2021
	Christopher Shackelton, By: /s/ Chivonne Cassar, Chivonne Cassar, Attorney-in-fact	03/05/2021
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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