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
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
GGC Opportunity Fund Management GP, Ltd.

(Last) (First) (Middle)
C/O GOLDEN GATE PRIVATE EQUITY, INC.
ONE EMBARCADERO CENTER 39TH FLOOR

(Street)
SAN FRANCISCO CA 94111

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Cornerstone Building Brands, Inc. [ CNR ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
03/03/2021
4. 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 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, $0.01 par value 03/03/2021 S 150,000 D $11.62(1) 1,404,586 I See notes(2)(3)
Common Stock, $0.01 par value 03/04/2021 S 277,800 D $12.31(4) 1,126,786 I See notes(2)(3)
Common Stock, $0.01 par value 03/05/2021 S 385,000 D $12.52(5) 741,786 I See notes(2)(3)
Common Stock, $0.01 par value 12,441,252.4 I See note(6)
Common Stock, $0.01 par value 48,150.31 I See note(7)
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
1. Name and Address of Reporting Person*
GGC Opportunity Fund Management GP, Ltd.

(Last) (First) (Middle)
C/O GOLDEN GATE PRIVATE EQUITY, INC.
ONE EMBARCADERO CENTER 39TH FLOOR

(Street)
SAN FRANCISCO CA 94111

(City) (State) (Zip)
1. Name and Address of Reporting Person*
ATRIUM INTERMEDIATE HOLDINGS, LLC

(Last) (First) (Middle)
C/O GOLDEN GATE PRIVATE EQUITY, INC.
ONE EMBARCADERO CENTER, 39TH FLOOR

(Street)
SAN FRANCISCO CA 94111

(City) (State) (Zip)
1. Name and Address of Reporting Person*
ATRIUM WINDOW HOLDINGS, LLC

(Last) (First) (Middle)
C/O GOLDEN GATE PRIVATE EQUITY, INC.
ONE EMBARCADERO CENTER, 39TH FLOOR

(Street)
SAN FRANCISCO CA 94111

(City) (State) (Zip)
1. Name and Address of Reporting Person*
ATRIUM WINDOW PARENT, LLC

(Last) (First) (Middle)
C/O GOLDEN GATE PRIVATE EQUITY, INC.
ONE EMBARCADERO CENTER, 39TH FLOOR

(Street)
SAN FRANCISCO CA 94111

(City) (State) (Zip)
1. Name and Address of Reporting Person*
GGC ATRIUM WINDOW HOLDINGS, LLC

(Last) (First) (Middle)
C/O GOLDEN GATE PRIVATE EQUITY, INC.
ONE EMBARCADERO CENTER, 39TH FLOOR

(Street)
SAN FRANCISCO CA 94111

(City) (State) (Zip)
1. Name and Address of Reporting Person*
GGC BP HOLDINGS, LLC

(Last) (First) (Middle)
C/O GOLDEN GATE PRIVATE EQUITY, INC.
ONE EMBARCADERO CENTER, 39TH FLOOR

(Street)
SAN FRANCISCO CA 94111

(City) (State) (Zip)
1. Name and Address of Reporting Person*
GOLDEN GATE CAPITAL OPPORTUNITY FUND, L.P.

(Last) (First) (Middle)
C/O GOLDEN GATE PRIVATE EQUITY, INC.
ONE EMBARCADERO CENTER, 39TH FLOOR

(Street)
SAN FRANCISCO CA 94111

(City) (State) (Zip)
1. Name and Address of Reporting Person*
GOLDEN GATE CAPITAL OPPORTUNITY FUND-A, L.P.

(Last) (First) (Middle)
C/O GOLDEN GATE PRIVATE EQUITY, INC.
ONE EMBARCADERO CENTER, 39TH FLOOR

(Street)
SAN FRANCISCO CA 94111

(City) (State) (Zip)
1. Name and Address of Reporting Person*
GGCOF Co-Invest Management, L.P.

(Last) (First) (Middle)
C/O GOLDEN GATE PRIVATE EQUITY, INC.
ONE EMBARCADERO CENTER, 39TH FLOOR

(Street)
SAN FRANCISCO CA 94111

(City) (State) (Zip)
1. Name and Address of Reporting Person*
GGCOF CO-INVEST, L.P.

(Last) (First) (Middle)
C/O GOLDEN GATE PRIVATE EQUITY, INC.
ONE EMBARCADERO CENTER, 39TH FLOOR

(Street)
SAN FRANCISCO CA 94111

(City) (State) (Zip)
Explanation of Responses:
1. Weighted average price representing high of $11.78 and low of $11.50.
2. Shares are directly held by AIC Finance Partnership, L.P. ("AIC"). Each of Golden Gate Capital Opportunity Fund, L.P. ("GGCOF"), Golden Gate Capital Opportunity Fund-A, L.P. ("GGCOF-A"), GGCOF Co-Invest, L.P. ("GGCOF Co-Invest"), GGCOF Co-Invest IRA, L.P. ("IRA Co-Invest") and GGCOF Executive Co-Invest, L.P. ("Executive Co-Invest" and, together with GGCOF, GGCOF-A, GGCOF Co-Invest and IRA Co-Invest, the "Funds") have an indirect pecuniary interest in AIC. GGCOF Co-Invest Management, L.P. ("GGCOF Third Party Co-Invest") is the general partner of each of GGCOF Co-Invest, IRA Co-Invest and Executive Co-Invest. GGC Opportunity Fund Management, L.P. ("Management GP") is the general partner of each of GGCOF, GGCOF-A and GGCOF Third Party Co-Invest, and GGC Opportunity Fund Management GP, Ltd.
3. (Continued from Footnote 3) ("Ultimate GP") is the general partner of Management GP. Ultimate GP is governed by its board of directors. Each of the Funds, GGCOF Third Party Co-Invest, Management GP and Ultimate GP disclaim beneficial ownership of these shares except to the extent of their respective pecuniary interests therein.
4. Weighted average price representing high of $12.78 and low of $11.80.
5. Weighted average price representing high of $12.82 and low of $12.15.
6. Shares are directly held by Atrium Intermediate Holdings, LLC ("Atrium Intermediate"). Atrium Window Holdings, LLC ("Atrium Holdings") and Atrium Window Parent, LLC ("Atrium Parent") are the members of Atrium Intermediate. Atrium Parent is the controlling unitholder of Atrium Holdings. GGC Atrium Window Holdings, LLC ("GGC Atrium') is the controlling unitholder of Atrium Parent. GGC BP Holdings, LLC ("GGC BP") is the controlling unitholder of GGC Atrium. The Funds collectively hold all of the equity interests of GGC BP. Each of Funds, GGCOF Third Party Co-Invest, Management GP and Ultimate GP disclaim beneficial ownership of these shares except to the extent of their respective pecuniary interests therein.
7. Shares are directly held by GGC BP. Each of the Funds, GGCOF Third Party Co-Invest, Management GP and Ultimate GP disclaim beneficial ownership of these shares except to the extent of their respective pecuniary interests therein.
Remarks:
Form 1 of 2
GGC Opportunity Fund Management GP, Ltd., By: /s/ Stephen D. Oetgen, attorney-in-fact for David Dominik, a Director 03/05/2021
Golden Gate Capital Opportunity Fund, L.P., By: /s/ Stephen D. Oetgen, attorney-in-fact for David Dominik, a Director 03/05/2021
Golden Gate Capital Opportunity Fund-A, L.P., By: /s/ Stephen D. Oetgen, attorney-in-fact for David Dominik, a Director 03/05/2021
GGCOF Co-Invest Management, L.P., By: /s/ Stephen D. Oetgen, attorney-in-fact for David Dominik, a Director 03/05/2021
GGCOF Co-Invest, L.P., By: /s/ Stephen D. Oetgen, attorney-in-fact for David Dominik, a Director 03/05/2021
Atrium Intermediate Holdings, LLC, By: /s/ Stephen D. Oetgen, attorney-in-fact for David Thomas, a Manager 03/05/2021
Atrium Window Holdings, LLC, By: /s/ Stephen D. Oetgen, attorney-in-fact for David Thomas, a Manager 03/05/2021
Atrium Window Parent, LLC, By: /s/ Stephen D. Oetgen, attorney-in-fact for David Thomas, a Manager 03/05/2021
GGC Atrium Window Holdings, LLC, By: /s/ Stephen D. Oetgen, attorney-in-fact for David Thomas, a Manager 03/05/2021
GGC BP Holdings, LLC, By: /s/ Stephen D. Oetgen, attorney-in-fact for David Thomas, a Manager 03/05/2021
** 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).
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