Filing Details

Accession Number:
0001193125-23-073846
Form Type:
13D Filing
Publication Date:
2023-03-16 20:00:00
Filed By:
Advent International Corp/ma
Company:
Ati Physical Therapy Inc.
Filing Date:
2023-03-17
SEC Url:
13D Filing
Ownership Summary

Please notice the below summary table is generated without human intervention and may contain errors. Please refer to the complete filing displayed below for exact figures.

Name Sole Voting Power Shared Voting Power Sole Dispositive Power Shared Dispositive Power Aggregate Amount Owned Power Percent of Class
ADVENT INTERNATIONAL CORPORATION 0 115,830,656 0 115,830,656 115,830,656 55.9%
ADVENT INTERNATIONAL GPE VII 0 115,830,656 0 115,830,656 115,830,656 55.9%
WILCO ACQUISITION 0 0 0 0 0 0.0%
WILCO GP, INC 0 0 0 0 0 0.0%
ADVENT INTERNATIONAL GPE VII LIMITED PARTNERSHIP 0 11,324,692 0 11,324,692 11,324,692 5.5%
ADVENT INTERNATIONAL GPE VII-B LIMITED PARTNERSHIP 0 30,970,377 0 30,970,377 30,970,377 14.9%
ADVENT INTERNATIONAL GPE VII-C LIMITED PARTNERSHIP 0 9,845,475 0 9,845,475 9,845,475 4.7%
ADVENT INTERNATIONAL GPE VII-D LIMITED PARTNERSHIP 0 6,777,137 0 6,777,137 6,777,137 3.3%
ADVENT INTERNATIONAL GPE VII-F LIMITED PARTNERSHIP 0 2,873,508 0 2,873,508 2,873,508 1.4%
ADVENT INTERNATIONAL GPE VII-G LIMITED PARTNERSHIP 0 2,873,508 0 2,873,508 2,873,508 1.4%
GPE VII GP S.A.R.L 0 64,664,697 0 64,664,697 64,664,697 31.2%
ADVENT INTERNATIONAL GPE VII-A LIMITED PARTNERSHIP 0 10,481,756 0 10,481,756 10,481,756 5.1%
ADVENT INTERNATIONAL GPE VII-E LIMITED PARTNERSHIP 0 22,316,207 0 22,316,207 22,316,207 10.8%
ADVENT INTERNATIONAL GPE VII-H LIMITED PARTNERSHIP 0 1,743,883 0 1,743,883 1,743,883 0.8%
GPE VII GP LIMITED PARTNERSHIP 0 34,541,846 0 34,541,846 34,541,846 16.7%
ADVENT PARTNERS GPE VII 0 65,045 0 65,045 65,045 Less than 0.1%
ADVENT PARTNERS GPE VII 0 155,782 0 155,782 155,782 0.1%
ADVENT PARTNERS GPE VII 151 A 0 179,333 0 179,333 179,333 0.1%
ADVENT PARTNERS GPE VII 150 A 0 109,903 0 109,903 109,903 0.1%
ADVENT PARTNERS GPE VII CAYMAN LIMITED PARTNERSHIP 0 806,132 0 806,132 806,132 0.4%
ADVENT PARTNERS GPE VII - B CAYMAN LIMITED PARTNERSHIP 0 1,063,662 0 1,063,662 1,063,662 0.5%
ADVENT PARTNERS GPE VII LIMITED PARTNERSHIP 0 45,266 0 45,266 45,266 Less than 0.1%
ADVENT PARTNERS GPE VII - A CAYMAN LIMITED PARTNERSHIP 0 212,875 0 212,875 212,875 0.1%
ADVENT PARTNERS GPE VII - A LIMITED PARTNERSHIP 0 107,151 0 107,151 107,151 0.1%
GPE VII ATI CO-INVESTMENT (DELAWARE) LIMITED PARTNERSHIP 0 13,878,964 0 13,878,964 13,878,964 6.7%
Filing

 

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

 

SCHEDULE 13D

Amendment No. 3

Under the Securities Exchange Act of 1934

 

 

ATI PHYSICAL THERAPY, INC.

(Name of Issuer)

Class A Common Stock, $0.0001 par value per share

(Title of Class of Securities)

00216W109

(CUSIP Number)

Copy to:

Amanda McGrady Morrison

General Counsel and Chief Legal Officer

Advent International Corporation

Prudential Tower

800 Boylston Street

Boston, MA 02199-8069

March 15, 2023

(Date of Event Which Requires Filing of this Statement)

 

 

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because § 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g) check the following box   ☐.

 

 

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See § 240.13d-7(b) for other parties to whom copies are to be sent.

 

 

 

*

The remainder of this cover page shall be filled out for a reporting persons initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be filed for the purpose of Section 18 of the Securities Exchange Act of 1934 (Act) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

 

 

 


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT INTERNATIONAL CORPORATION

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  DELAWARE

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  115,830,656

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  115,830,656

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  115,830,656

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  55.9%*

14  

  TYPE OF REPORTING PERSON

 

  CO

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT INTERNATIONAL GPE VII, LLC

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  DELAWARE

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  115,830,656

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  115,830,656

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  115,830,656

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  55.9%*

14  

  TYPE OF REPORTING PERSON

 

  OO

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  WILCO ACQUISITION, LP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  OO

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  DELAWARE

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  0

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  0

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  0

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  0.0%

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  WILCO GP, INC.

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  DELAWARE

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  0

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  0

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  0

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  0.0%

14  

  TYPE OF REPORTING PERSON

 

  CO

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT INTERNATIONAL GPE VII LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  LUXEMBOURG

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  11,324,692

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  11,324,692

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  11,324,692

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  5.5%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT INTERNATIONAL GPE VII-B LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  LUXEMBOURG

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  30,970,377

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  30,970,377

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  30,970,377

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  14.9%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT INTERNATIONAL GPE VII-C LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  LUXEMBOURG

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  9,845,475

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  9,845,475

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  9,845,475

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  4.7%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT INTERNATIONAL GPE VII-D LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  LUXEMBOURG

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  6,777,137

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  6,777,137

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  6,777,137

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  3.3%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT INTERNATIONAL GPE VII-F LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  LUXEMBOURG

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  2,873,508

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  2,873,508

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  2,873,508

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  1.4%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT INTERNATIONAL GPE VII-G LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  LUXEMBOURG

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  2,873,508

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  2,873,508

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  2,873,508

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  1.4%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  GPE VII GP S.A.R.L.

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  LUXEMBOURG

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  64,664,697

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  64,664,697

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  64,664,697

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  31.2%*

14  

  TYPE OF REPORTING PERSON

 

  CO

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT INTERNATIONAL GPE VII-A LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  CAYMAN ISLANDS

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  10,481,756

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  10,481,756

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  10,481,756

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  5.1%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT INTERNATIONAL GPE VII-E LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  CAYMAN ISLANDS

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  22,316,207

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  22,316,207

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  22,316,207

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  10.8%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT INTERNATIONAL GPE VII-H LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  CAYMAN ISLANDS

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  1,743,883

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  1,743,883

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  1,743,883

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  0.8%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  GPE VII GP LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  CAYMAN ISLANDS

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  34,541,846

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  34,541,846

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  34,541,846

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  16.7%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT PARTNERS GPE VII 2014 LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  DELAWARE

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  65,045

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  65,045

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  65,045

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  Less than 0.1%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT PARTNERS GPE VII 2014 CAYMAN LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  CAYMAN ISLANDS

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  155,782

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  155,782

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  155,782

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  0.1%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT PARTNERS GPE VIIA 2014 LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  DELAWARE

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  179,333

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  179,333

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  179,333

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  0.1%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT PARTNERS GPE VII A 2014 CAYMAN LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  CAYMAN ISLANDS

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  109,903

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  109,903

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  109,903

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  0.1%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT PARTNERS GPE VII CAYMAN LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  CAYMAN ISLANDS

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  806,132

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  806,132

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  806,132

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  0.4%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT PARTNERS GPE VII - B CAYMAN LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  CAYMAN ISLANDS

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  1,063,662

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  1,063,662

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  1,063,662

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  0.5%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT PARTNERS GPE VII LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  DELAWARE

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  45,266

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  45,266

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  45,266

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  Less than 0.1%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT PARTNERS GPE VII - A CAYMAN LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  CAYMAN ISLANDS

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  212,875

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  212,875

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  212,875

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  0.1%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  ADVENT PARTNERS GPE VII - A LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  DELAWARE

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  107,151

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  107,151

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  107,151

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  0.1%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


CUSIP No. 00216W109    13D

 

  1    

  NAMES OF REPORTING PERSONS

 

  GPE VII ATI CO-INVESTMENT (DELAWARE) LIMITED PARTNERSHIP

  2  

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

 

  3  

  SEC USE ONLY

 

  4  

  SOURCE OF FUNDS

 

  N/A

  5  

  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e):

 

  ☐

  6  

  CITIZENSHIP OR PLACE OF ORGANIZATION

 

  DELAWARE

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH:

 

     7     

  SOLE VOTING POWER

 

  0

     8   

  SHARED VOTING POWER

 

  13,878,964

     9   

  SOLE DISPOSITIVE POWER

 

  0

   10   

  SHARED DISPOSITIVE POWER

 

  13,878,964

11    

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

  13,878,964

12  

  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

 

  ☐

13  

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

 

  6.7%*

14  

  TYPE OF REPORTING PERSON

 

  PN

 

*

Calculation based on 207,384,260 shares of Class A Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.


This Amendment No. 3 (Amendment No. 3) amends and supplements the statement on Schedule 13D originally filed by the Reporting Persons on June 29, 2021 (as amended from time to time, the Schedule 13D) relating to the Class A Common Stock, $0.0001 par value per share (the Common Stock) of ATI Physical Therapy, Inc. (the Issuer or the Company). Unless otherwise indicated, each capitalized term used but not defined in this Amendment No. 3 shall have the meaning assigned to such term in the Schedule 13D.

 

Item 5.

Interest in Securities of the Issuer

Item 5 of the Schedule 13D is supplemented as follows:

The information set forth or incorporated by reference in Items 2 and 6 of this Statement is incorporated by reference in this Item 5.

(a) and (b) The responses of the Reporting Persons to rows (7) through (13) of the cover pages of this Schedule 13D, as of March 15, 2023, are incorporated herein by reference. As of March 15, 2023, the Reporting Persons beneficially owned in the aggregate 115,830,656 shares of Common Stock, which represents approximately 55.9% of the outstanding shares.

The following table sets forth the aggregate number and percentage of the Common Stock beneficially owned by each Reporting Person as of March 15, 2023, calculated in accordance with Rule 13d-3 of the Securities Exchange Act of 1934, as amended (the Exchange Act). The percentage of Common Stock owned was calculated based on 207,384,260 shares of Common Stock outstanding as of March 6, 2023, as reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 16, 2023.

 

Reporting Person

   Number of Shares
Beneficially Owned
     Percentage of
Common Stock
 

Advent International Corporation (1)(2)

     115,830,656        55.9

Advent International GPE VII, LLC (1)

     115,830,656        55.9

Wilco Acquisition, LP

     0        0.0

Wilco GP, Inc. (2)

     0        0.0

GPE VII GP S.a.r.l (3)

     64,664,697        31.2

GPE VII GP Limited Partnership (4)

     34,541,846        16.7

Advent International GPE VII Limited Partnership

     11,324,692        5.5

Advent International GPE VII-B Limited Partnership

     30,970,377        14.9

Advent International GPE VII-C Limited Partnership

     9,845,475        4.7

Advent International GPE VII-D Limited Partnership

     6,777,137        3.3

Advent International GPE VII-F Limited Partnership

     2,873,508        1.4

Advent International GPE VII-G Limited Partnership

     2,873,508        1.4

Advent International GPE VII-A Limited Partnership

     10,481,756        5.1

Advent International GPE VII-E Limited Partnership

     22,316,207        10.8

Advent International GPE VII-H Limited Partnership

     1,743,883        0.8

Advent Partners GPE VII - 2014 Limited Partnership

     65,045        Less than 0.1

Advent Partners GPE VII - 2014 Cayman Limited Partnership

     155,782        0.1

Advent Partners GPE VII - A 2014 Limited Partnership

     179,333        0.1

Advent Partners GPE VII - A 2014 Cayman Limited Partnership

     109,903        0.1

Advent Partners GPE VII - Cayman Limited Partnership

     806,132        0.4

Advent Partners GPE VII B Cayman Limited Partnership

     1,063,662        0.5

Advent Partners GPE VII - Limited Partnership

     45,266        Less than 0.1

Advent Partners GPE VII A Cayman Limited Partnership

     212,875        0.1

Advent Partners GPE VII A Limited Partnership

     107,151        0.1

GPE VII ATI Co-Investment (Delaware) Limited Partnership

     13,878,964        6.7

 

(1)

Advent Top GP, as the manager of Advent GP Luxembourg and the general partner of each of Advent GP Cayman, the Advent Partners Funds and Advent Co-Invest Fund, and Advent, as the manager of Advent Top GP, may each be deemed to beneficially own the 115,830,656 shares of Common Stock held directly by the Advent Funds.


(2)

On April 8, 2022, the 560,979 shares of Common Stock previously held by Wilco Acquisition were cancelled and terminated for no consideration. As such, neither Wilco Acquisition nor Wilco GP may be deemed to beneficially own any shares of Common Stock of the Issuer.

(3)

Advent GP Luxembourg, as the general partner of each of the Advent Luxembourg Funds, may be deemed to beneficially own the 64,664,697 shares of Common Stock held directly by the Advent Luxembourg Funds.

(4)

Advent GP Cayman, as the general partner of each of the Advent Cayman Funds, may be deemed to beneficially own the 34,541,846 shares of Common Stock held directly by the Advent Cayman Funds.

The foregoing excludes the contingent right by Wilco Acquisition to receive up to 15,000,000 Earnout Shares (as defined and described in Item 6 of this Statement).

As a result of the Transaction Agreements (as defined and described in Item 6 of this Statement), the Reporting Persons may be deemed to constitute a group within the meaning of Section 13(d)(3) of Exchange Act. This Schedule 13D shall not be construed as an admission by the Reporting Persons that the Reporting Persons are, for the purposes of Section 13(d) of the Exchange Act, the beneficial owners of any shares of Common Stock covered by the Transaction Agreements.

(c) None of the Reporting Persons effected transactions in Common Stock during the past 60 days. To the Reporting Persons knowledge, none of the individuals listed on Schedule A to this Statement effected transactions in Common Stock during the past 60 days.

(d) Under certain circumstances, partners, members or shareholders of the Reporting Persons, as the case may be, could have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, shares of Common Stock owned by such Reporting Person.

(e) Inapplicable.

 

Item 6.

Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer

Item 6 of the Schedule 13D is hereby amended to include the following:

Transaction Support Agreement

On March 15, 2023, the Company entered into a Transaction Support Agreement (the TSA) with certain of its first lien lenders under the 2022 Credit Agreement (the First Lien Lenders), the administrative agent under the 2022 Credit Agreement, holders of its Series A Senior Preferred Stock (the Preferred Equityholders) and holders of the majority of its common stock (including the Advent Funds, together with the First Lien Lenders and the Preferred Equityholders, the Parties), setting forth the principal terms of a comprehensive transaction to enhance the Companys liquidity (the Transaction). Pursuant to the TSA, and subject to the terms and conditions thereof, the Parties have agreed to support, act in good faith and take all steps reasonably necessary and desirable to consummate the transactions referenced therein by June 15, 2023 (the Outside Closing Date).

The TSA contemplates, among other things, (i) a delayed draw new money financing, available under certain circumstances until the 18 month anniversary of the closing date of the transactions, in an aggregate principal amount equal to $25.0 million in the form of new second lien PIK exchangeable notes (Second Lien PIK Exchangeable Notes), (ii) exchange of $100.0 million of the aggregate principal amount of the term loans under the 2022 Credit Facility held by certain of the Preferred Equityholders for Second Lien PIK Exchangeable Notes, (iii) a reduction of the thresholds applicable to the minimum liquidity financial covenant under the 2022 Credit Agreement


for certain periods, (iv) a waiver of the requirement to comply with the Secured Net Leverage Ratio financial covenant under the 2022 Credit Agreement for the fiscal quarters ending June 30, 2024, September 30, 2024 and December 31, 2024 and a modification of the levels and certain component definitions applicable thereto in the fiscal quarters ending after December 31, 2024, (v) waiver of the requirement for the Company to deliver audited financial statements without certain going concern qualifications for the years ended December 31, 2022, December 31, 2023, and December 31, 2024, (vi) an increase in the interest rate payable on the existing term loans and revolving loans until the achievement of a specified financial metric and (vii) board representation and observer rights, and other changes to the governance of the Company. The Second Lien PIK Exchangeable Notes would be exchangeable for shares of Class A common stock of the Company at a fixed price of $0.25 and the holders thereof would have the right to vote on corporate matters on an as-exchanged basis. The TSA contains certain representations, warranties and other agreements by the Company and Parties. The Parties obligations under the TSA are, and the closing of the Transaction is, subject to various customary terms and conditions set forth therein, including the execution and delivery of definitive documentation and approval by the Companys stockholders.

There is no assurance that the transactions contemplated by the TSA will be consummated on the terms as described above, on a timely basis or at all.

The foregoing description of the TSA does not purport to be complete and is qualified in its entirety by reference to the text of such agreement, a copy of which is included as Exhibit 1 to this Statement.

 

Item 7.

Material to Be Filed as Exhibits

 

Exhibit No.    Description

1

   Transaction Support Agreement (filed as Exhibit 10.1 to the Issuers Annual Report on Form 10-K filed March 16, 2023 and incorporated herein by reference).

Signature

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this Statement is true, complete and correct.

 

Date: March 17, 2023     ADVENT INTERNATIONAL CORPORATION
   

/s/ Neil Crawford

    Name:   Neil Crawford
    Title:   Vice President of Finance
Date: March 17, 2023     WILCO ACQUISITION, LP
    By: WILCO GP, INC., GENERAL PARTNER
   

/s/ John Maldonado

    Name:   John Maldonado
    Title:   President
Date: March 17, 2023     WILCO GP, INC.
   

/s/ John Maldonado

    Name:   John Maldonado
    Title:   President

 

Date: March 17, 2023    ADVENT INTERNATIONAL GPE VII LIMITED PARTNERSHIP
   ADVENT INTERNATIONAL GPE VII-B LIMITED PARTNERSHIP
   ADVENT INTERNATIONAL GPE VII-C LIMITED PARTNERSHIP
   ADVENT INTERNATIONAL GPE VII-D LIMITED PARTNERSHIP
   ADVENT INTERNATIONAL GPE VII-F LIMITED PARTNERSHIP
   ADVENT INTERNATIONAL GPE VII-G LIMITED PARTNERSHIP
   By: GPE VII GP S.A.R.L., GENERAL PARTNER
   By: ADVENT INTERNATIONAL GPE VII, LLC, MANAGER and
  

/s/ Justin Nuccio

   Name: Justin Nuccio
   Title: Manager
   By: ADVENT INTERNATIONAL CORPORATION, MANAGER
  

/s/ Neil Crawford

  

Name: Neil Crawford

  

Title: Vice President of Finance


Date: March 17, 2023    ADVENT INTERNATIONAL GPE VII-A LIMITED PARTNERSHIP
   ADVENT INTERNATIONAL GPE VII-E LIMITED PARTNERSHIP
   ADVENT INTERNATIONAL GPE VII-H LIMITED PARTNERSHIP
   By: GPE VII GP LIMITED PARTNERSHIP, GENERAL PARTNER
   By: ADVENT INTERNATIONAL GPE VII, LLC, GENERAL PARTNER
   By: ADVENT INTERNATIONAL CORPORATION, MANAGER
  

/s/ Neil Crawford

   Name: Neil Crawford
   Title: Vice President of Finance

 

Date: March 17, 2023    ADVENT PARTNERS GPE VII 2014 LIMITED PARTNERSHIP
   ADVENT PARTNERS GPE VII 2014 CAYMAN LIMITED PARTNERSHIP
   ADVENT PARTNERS GPE VIIA 2014 LIMITED PARTNERSHIP
   ADVENT PARTNERS GPE VIIA 2014 CAYMAN LIMITED PARTNERSHIP
   ADVENT PARTNERS GPE VII CAYMAN LIMITED PARTNERSHIP
   ADVENT PARTNERS GPE VIIB CAYMAN LIMITED PARTNERSHIP
   ADVENT PARTNERS GPE VII LIMITED PARTNERSHIP
   ADVENT PARTNERS GPE VIIA CAYMAN LIMITED PARTNERSHIP
   ADVENT PARTNERS GPE VIIA LIMITED PARTNERSHIP
   By: ADVENT INTERNATIONAL GPE VII, LLC, GENERAL PARTNER
   By: ADVENT INTERNATIONAL CORPORATION, MANAGER
  

/s/ Neil Crawford

   Name: Neil Crawford
   Title: Vice President of Finance
Date: March 17, 2023    GPE VII ATI CO-INVESTMENT (DELAWARE) LIMITED PARTNERSHIP
   By: ADVENT INTERNATIONAL GPE VII, LLC, GENERAL PARTNER

   By: ADVENT INTERNATIONAL CORPORATION, MANAGER
  

/s/ Neil Crawford

   Name: Neil Crawford
   Title: Vice President of Finance
Date: March 17, 2023    GPE VII GP S.A.R.L.
   By: ADVENT INTERNATIONAL GPE VII, LLC, MANAGER and
  

/s/ Justin Nuccio

   Name: Justin Nuccio
   Title: Manager
   By: ADVENT INTERNATIONAL CORPORATION, MANAGER
  

/s/ Neil Crawford

   Name: Neil Crawford
   Title: Vice President of Finance

 

Date: March 17, 2023    GPE VII GP LIMITED PARTNERSHIP
   By: ADVENT INTERNATIONAL GPE VII, LLC, GENERAL PARTNER
   By: ADVENT INTERNATIONAL CORPORATION, MANAGER
  

/s/ Neil Crawford

   Name: Neil Crawford
   Title: Vice President of Finance
Date: March 17, 2023    ADVENT INTERNATIONAL GPE VII, LLC
   By: ADVENT INTERNATIONAL CORPORATION, MANAGER
  

/s/ Neil Crawford

   Name: Neil Crawford
   Title: Vice President of Finance

SCHEDULE A

1. Advent International Corporation

The name, business address, title, present principal occupation or employment of each of the directors and executive officers of Advent International Corporation (Advent), are set forth below. If no business address is given, the directors or executive officers business address is Prudential Tower, 800 Boylston Street, Boston, Massachusetts 02199-8069. Unless otherwise indicated, each occupation set forth opposite an individuals name refers to Advent. Unless otherwise indicated below, all of the persons listed below are citizens of the United States of America. Mr. Brocklebank is a citizen of the United Kingdom. Mr. Etlin is a citizen of Brazil. Mr. Janshen is a citizen of Germany.

 

Name

  

Present Principal Occupation Including Name and Address of Employer

Directors

Thomas H. Lauer

John F. Brooke

 

Mark Hoffman

David M. Mussafer

John L. Maldonado

  

Director

Director; Managing Director of Brooke Private Equity Associates 20 Custom House Street, Suite 610, Boston, MA 02110

Director

Director; Chairman & Managing Partner; Executive Officers Committee Member

Director; Senior Vice President & Managing Partner; Executive Officers Committee Member

 

Name

  

Present Principal Occupation Including Name and Address of Employer

Executive Officers

(Who Are Not Directors)

  

Susan Gentile

Amanda McGrady Morrison

Andrew D. Dodge

Heather R. Zuzenak

Heather Miner

James G.A. Brocklebank

Patrice Etlin

Jan Janshen

  

Senior Vice President & Managing Director; Chief Financial Officer; Treasurer; Assistant Secretary

Vice President & Managing Director; Chief Legal Officer; General Counsel

Vice President; Deputy General Counsel; Secretary

Chief Compliance Officer

Vice President & Managing Director; Chief Operating Officer

Senior Vice President & Managing Partner; Executive Officers Committee Member

Senior Vice President & Managing Partner; Executive Officers Committee Member

Senior Vice President & Managing Partner; Executive Officers Committee Member

2. Wilco GP, Inc.

The name, business address, title, present principal occupation or employment of each of the directors and executive officers of Wilco GP, Inc. (Wilco GP), are set forth below. If no business address is given, the directors or executive officers business address is Prudential Tower, 800 Boylston Street, Boston, Massachusetts 02199-8069. Unless otherwise indicated, each occupation set forth opposite an individuals name refers to Wilco GP. Unless otherwise indicated below, all of the persons listed below are citizens of the United States of America.

 

Name   

Present Principal Occupation Including Name and Address of Employer

Directors   

John L. Maldonado

Christopher Pike

Dylan Bates

  

Director; President

Director; Treasurer and Secretary

Director

 

Name   

Present Principal Occupation Including Name and Address of Employer

Executive Officers

(Who Are Not Directors)

N/A

  

3. GPE VII GP S.a.r.l.

The name, business address, title, present principal occupation or employment of each of the managers and executive officers of GPE VII GP S.a.r.l. (Advent GP Luxembourg), are set forth below. If no business address is given, the managers or executive officers business address is Prudential Tower, 800 Boylston Street, Boston, Massachusetts 02199-8069. Unless otherwise indicated, each occupation set forth opposite an individuals name refers to Advent GP Luxembourg. Unless otherwise indicated below, all of the persons listed below are citizens of the United States of America. Ms. Harroch is a citizen of France. Mr. Nuccio is a citizen of the United Kingdom.

 

Name   

Present Principal Occupation Including Name and Address of Employer

Managers   

Advent International

GPE VII, LLC

   Manager

Justin Nuccio

Linda Harroch

Aurélie Comptour

  

Manager

Manager

Manager

 

Name   

Present Principal Occupation Including Name and Address of Employer

Executive Officers

(Who Are Not Managers)

  
N/A