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 the Earliest Transaction Required
to be Reported (Month/Day/Year): 1/18/2022
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/
-------------------------------
Name: Sharlyn C. Heslam
Title: Managing Director
1/20/2022
---------
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 the Earliest Transaction Required
to be Reported (Month/Day/Year): 1/18/2022
Designated Filer: Berkshire Partners LLC
Signature:
Berkshire Fund VIII-A, L.P.
By Eighth Berkshire Associates LLC,
its general partner
/s/
-------------------------------
Name: Sharlyn C. Heslam
Title: Managing Director
1/20/2022
---------
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 the Earliest Transaction Required
to be Reported (Month/Day/Year): 1/18/2022
Designated Filer: Berkshire Partners LLC
Signature:
Eighth Berkshire Associates LLC
/s/
-------------------------------
Name: Sharlyn C. Heslam
Title: Managing Director
1/20/2022
---------
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 the Earliest Transaction Required
to be Reported (Month/Day/Year): 1/18/2022
Designated Filer: Berkshire Partners LLC
Signature:
Berkshire Partners Holdings LLC
/s/
-------------------------------
Name: Sharlyn C. Heslam
Title: Managing Director
1/20/2022
---------
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 the Earliest Transaction Required
to be Reported (Month/Day/Year): 1/18/2022
Designated Filer: Berkshire Partners LLC
Signature:
BPSP, L.P.
By: Berkshire Partners Holdings LLC, its general partner
/s/
-------------------------------
Name: Sharlyn C. Heslam
Title: Managing Director
1/20/2022
---------
Date
