Exhibit 99.1
Joint Filer Information
Name of Joint Filer: Berkshire Partners LLC
Address of Joint Filer: 200 Clarendon Street
35th Floor
Boston, MA 02116-5021
Issuer Name and Ticker or Trading Symbol: Portillo's, Inc. [PTLO]
Date of Event Requiring this Statement
(Month/Day/Year): 10/21/2021
Designated Filer: Berkshire Partners LLC
Signature:
Berkshire Partners LLC
By: BPSP, L.P., its managing member
By: Berkshire Partners Holdings LLC, its general partner
/s/ Sharlyn C. Heslam
--------------------------------
Name: Sharlyn C. Heslam
Title: Managing Director
10/21/2021
----------
Date
Joint Filer Information
Name of Joint Filer: Berkshire Fund VIII-A, L.P.
Address of Joint Filer: 200 Clarendon Street
35th Floor
Boston, MA 02116-5021
Issuer Name and Ticker or Trading Symbol: Portillo's, Inc. [PTLO]
Date of Event Requiring this Statement
(Month/Day/Year): 10/21/2021
Designated Filer: Berkshire Partners LLC
Signature:
Berkshire Fund VIII-A, L.P.
By Eighth Berkshire Associates LLC,
its general partner
/s/ Sharlyn C. Heslam
--------------------------------
Name: Sharlyn C. Heslam
Title: Managing Director
10/21/2021
----------
Date
Joint Filer Information
Name of Joint Filer: Berkshire Fund VIII, L.P.
Address of Joint Filer: 200 Clarendon Street
35th Floor
Boston, MA 02116-5021
Issuer Name and Ticker or Trading Symbol: Portillo's, Inc. [PTLO]
Date of Event Requiring this Statement
(Month/Day/Year): 10/21/2021
Designated Filer: Berkshire Partners LLC
Signature:
Berkshire Fund VIII, L.P.
By Eighth Berkshire Associates LLC,
its general partner
/s/ Sharlyn C. Heslam
--------------------------------
Name: Sharlyn C. Heslam
Title: Managing Director
10/21/2021
----------
Date
Joint Filer Information
Name of Joint Filer: Berkshire Investors III LLC
Address of Joint Filer: 200 Clarendon Street
35th Floor
Boston, MA 02116-5021
Issuer Name and Ticker or Trading Symbol: Portillo's, Inc. [PTLO]
Date of Event Requiring this Statement
(Month/Day/Year): 10/21/2021
Designated Filer: Berkshire Partners LLC
Signature:
Berkshire Investors III LLC
/s/ Sharlyn C. Heslam
--------------------------------
Name: Sharlyn C. Heslam
Title: Managing Director
10/21/2021
----------
Date
Joint Filer Information
Name of Joint Filer: Berkshire Investors IV LLC
Address of Joint Filer: 200 Clarendon Street
35th Floor
Boston, MA 02116-5021
Issuer Name and Ticker or Trading Symbol: Portillo's, Inc. [PTLO]
Date of Event Requiring this Statement
(Month/Day/Year): 10/21/2021
Designated Filer: Berkshire Partners LLC
Signature:
Berkshire Investors IV LLC
/s/ Sharlyn C. Heslam
--------------------------------
Name: Sharlyn C. Heslam
Title: Managing Director
10/21/2021
----------
Date
Joint Filer Information
Name of Joint Filer: Eighth Berkshire Associates LLC
Address of Joint Filer: 200 Clarendon Street
35th Floor
Boston, MA 02116-5021
Issuer Name and Ticker or Trading Symbol: Portillo's, Inc. [PTLO]
Date of Event Requiring this Statement
(Month/Day/Year): 10/21/2021
Designated Filer: Berkshire Partners LLC
Signature:
Eighth Berkshire Associates LLC
/s/ Sharlyn C. Heslam
--------------------------------
Name: Sharlyn C. Heslam
Title: Managing Director
10/21/2021
----------
Date
Joint Filer Information
Name of Joint Filer: Berkshire Partners Holdings LLC
Address of Joint Filer: 200 Clarendon Street
35th Floor
Boston, MA 02116-5021
Issuer Name and Ticker or Trading Symbol: Portillo's, Inc. [PTLO]
Date of Event Requiring this Statement
(Month/Day/Year): 10/21/2021
Designated Filer: Berkshire Partners LLC
Signature:
Berkshire Partners Holdings LLC
/s/ Sharlyn C. Heslam
--------------------------------
Name: Sharlyn C. Heslam
Title: Managing Director
10/21/2021
----------
Date
Joint Filer Information
Name of Joint Filer: BPSP, L.P.
Address of Joint Filer: 200 Clarendon Street
35th Floor
Boston, MA 02116-5021
Issuer Name and Ticker or Trading Symbol: Portillo's, Inc. [PTLO]
Date of Event Requiring this Statement
(Month/Day/Year): 10/21/2021
Designated Filer: Berkshire Partners LLC
Signature:
BPSP, L.P.
By: Berkshire Partners Holdings LLC, its general partner
/s/ Sharlyn C. Heslam
--------------------------------
Name: Sharlyn C. Heslam
Title: Managing Director
10/21/2021
----------
Date
