PTLO

SEC source: 0001761825-26-000002 · wk-form4_1767649139.xml · nonDerivative · entry 1

Bordelon Ann G. · CIK 0001761825 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,427

F1 · shares: Represents restricted stock units ("RSUs") granted on January 2, 2026, which will vest in full on December 31, 2026, subject to the Reporting Person's continued service with the Issuer through such vesting date and the terms of the applicable award agreement. Upon vesting of the RSUs, the settlement has been deferred by the Reporting Person, pursuant to the Reporting Person's election made on December 27, 2025 and maintained by the Issuer.

SEC source: 0001844608-26-000002 · wk-form4_1767649166.xml · nonDerivative · entry 1

Glass Noah H. · CIK 0001844608 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,872

F1 · shares: Represents restricted stock units granted on January 2, 2026, which will vest in full on December 31, 2026, subject to the Reporting Person's continued service with the Issuer through such vesting date and the terms of the applicable award agreement.

SEC source: 0001263765-26-000002 · wk-form4_1767649145.xml · nonDerivative · entry 1

Miles Michael · CIK 0001263765 · Director · Interim President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 241,972

F1 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of previously disclosed awards.

SEC source: 0001865702-25-000008 · wk-form4_1767044833.xml · nonDerivative · entry 1

DARDEN TONY J · CIK 0001865702 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,773

F1 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of previously disclosed awards.

SEC source: 0002020559-25-000010 · wk-form4_1764711020.xml · nonDerivative · entry 2

Correia Keith M · CIK 0002020559 · Chief Information Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,815

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

SEC source: 0002020559-25-000010 · wk-form4_1764711020.xml · nonDerivative · entry 1

Correia Keith M · CIK 0002020559 · Chief Information Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,820

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of September 1, 2025 to November 30, 2025. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on November 28, 2025.

SEC source: 0001992312-25-000012 · wk-form4_1764711027.xml · nonDerivative · entry 2

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 104,468

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

SEC source: 0001992312-25-000012 · wk-form4_1764711027.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 104,470

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of September 1, 2025 to November 30, 2025. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on November 28, 2025.

SEC source: 0001886715-25-000010 · wk-form4_1764711015.xml · nonDerivative · entry 2

Waite Jill Francine · CIK 0001886715 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,685

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

SEC source: 0001886715-25-000010 · wk-form4_1764711015.xml · nonDerivative · entry 1

Waite Jill Francine · CIK 0001886715 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,699

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of September 1, 2025 to November 30, 2025. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on November 28, 2025.

SEC source: 0002020559-25-000008 · wk-form4_1762206553.xml · nonDerivative · entry 1

Correia Keith M · CIK 0002020559 · Chief Information Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,616

F1 · shares: Represents restricted stock units granted on October 31, 2025, which will vest in full on October 31, 2026, subject to the terms of the applicable award agreement.

SEC source: 0001992312-25-000010 · wk-form4_1762206547.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 104,375

F1 · shares: Represents restricted stock units granted on October 31, 2025, which will vest in full on October 31, 2026, subject to the terms of the applicable award agreement.

SEC source: 0001886796-25-000006 · wk-form4_1762206571.xml · nonDerivative · entry 1

Hook Michelle Greig · CIK 0001886796 · CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 217,229

F1 · shares: Represents restricted stock units granted on October 31, 2025, which will vest in full on October 31, 2026, subject to the terms of the applicable award agreement.

SEC source: 0001886715-25-000008 · wk-form4_1762206579.xml · nonDerivative · entry 1

Waite Jill Francine · CIK 0001886715 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,218

F1 · shares: Represents restricted stock units granted on October 31, 2025, which will vest in full on October 31, 2026, subject to the terms of the applicable award agreement.

SEC source: 0001865702-25-000006 · wk-form4_1762206565.xml · nonDerivative · entry 1

DARDEN TONY J · CIK 0001865702 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 104,553

F1 · shares: Represents restricted stock units granted on October 31, 2025, which will vest in full on October 31, 2026, subject to the terms of the applicable award agreement.

SEC source: 0001427740-25-000012 · wk-form4_1762206559.xml · nonDerivative · entry 1

Ellis Michael K · CIK 0001427740 · Chief Development Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,529

F1 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of previously disclosed awards.

SEC source: 0001263765-25-000005 · wk-form4_1760655727.xml · nonDerivative · entry 1

Miles Michael · CIK 0001263765 · Director · Interim President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 245,413

F1 · shares: Represents restricted stock units granted on October 15, 2025, which will vest in full on October 15, 2026, subject to the terms of the applicable award agreement.

SEC source: 0001242843-25-000003 · wk-form4_1760655848.xml · nonDerivative · entry 1

LEE EUGENE I JR · CIK 0001242843 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,779

F1 · shares: Represents restricted stock units granted on October 15, 2025, which will vest in full on October 15, 2026, subject to the terms of the applicable award agreement.

SEC source: 0001992312-25-000008 · wk-form4_1757109028.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,861

F1 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of a previously disclosed award.

SEC source: 0002020559-25-000006 · wk-form4_1756936734.xml · nonDerivative · entry 2

Correia Keith M · CIK 0002020559 · Chief Information Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,439

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

SEC source: 0002020559-25-000006 · wk-form4_1756936734.xml · nonDerivative · entry 1

Correia Keith M · CIK 0002020559 · Chief Information Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,442

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of June 1, 2025 to August 31, 2025. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on August 29, 2025.

SEC source: 0001992312-25-000006 · wk-form4_1756936715.xml · nonDerivative · entry 2

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,298

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

SEC source: 0001992312-25-000006 · wk-form4_1756936715.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,322

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of June 1, 2025 to August 31, 2025. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on August 29, 2025.

SEC source: 0001886715-25-000006 · wk-form4_1756936704.xml · nonDerivative · entry 2

Waite Jill Francine · CIK 0001886715 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,936

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

SEC source: 0001886715-25-000006 · wk-form4_1756936704.xml · nonDerivative · entry 1

Waite Jill Francine · CIK 0001886715 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,944

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of June 1, 2025 to August 31, 2025. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on August 29, 2025.

SEC source: 0001427740-25-000010 · wk-form4_1756936722.xml · nonDerivative · entry 2

Ellis Michael K · CIK 0001427740 · Chief Development Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,569

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

SEC source: 0001427740-25-000010 · wk-form4_1756936722.xml · nonDerivative · entry 1

Ellis Michael K · CIK 0001427740 · Chief Development Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,574

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of June 1, 2025 to August 31, 2025. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on August 29, 2025.

SEC source: 0001427740-25-000008 · wk-form4_1756849220.xml · nonDerivative · entry 1

Ellis Michael K · CIK 0001427740 · Chief Development Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,328

F1 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of a previously disclosed award.

SEC source: 0001871509-25-000130 · wk-form4_1754948835.xml · nonDerivative · entry 2

Osanloo Michael · CIK 0001432086 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,317

F2 · price: Represents the weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $7.91 to $8.01, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the aforementioned range.

SEC source: 0001871509-25-000130 · wk-form4_1754948835.xml · nonDerivative · entry 1

Osanloo Michael · CIK 0001432086 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,317

F1 · price: Represents the weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $7.38 to $7.45, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the aforementioned range.

SEC source: 0001871509-25-000126 · wk-form4_1754685808.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,495

F1 · price: Represents the weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $7.61 to $7.73, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the aforementioned range.

SEC source: 0001871509-25-000127 · wk-form4_1754685862.xml · nonDerivative · entry 1

Hook Michelle Greig · CIK 0001886796 · CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 173,405

F1 · price: Represents the weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $7.56 to $7.81, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the aforementioned range.

SEC source: 0001871509-25-000128 · wk-form4_1754685925.xml · nonDerivative · entry 1

LEE EUGENE I JR · CIK 0001242843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Family Trust

Disclosed balance after: 130,250

F1 · price: Represents the weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $7.54 to $7.78, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the aforementioned range.

SEC source: 0001871509-25-000102 · wk-form4_1748984076.xml · nonDerivative · entry 2

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,495

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

SEC source: 0001871509-25-000102 · wk-form4_1748984076.xml · nonDerivative · entry 1

Kaiser Kelly M · CIK 0001992312 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,537

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of March 1, 2025 to May 31, 2025. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on May 30, 2025.

SEC source: 0001871509-25-000101 · wk-form4_1748984061.xml · nonDerivative · entry 2

Hook Michelle Greig · CIK 0001886796 · CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 133,405

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

SEC source: 0001871509-25-000101 · wk-form4_1748984061.xml · nonDerivative · entry 1

Hook Michelle Greig · CIK 0001886796 · CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 133,452

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of March 1, 2025 to May 31, 2025. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on May 30, 2025.

SEC source: 0001871509-25-000103 · wk-form4_1748984090.xml · nonDerivative · entry 2

Waite Jill Francine · CIK 0001886715 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,639

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

SEC source: 0001871509-25-000103 · wk-form4_1748984090.xml · nonDerivative · entry 1

Waite Jill Francine · CIK 0001886715 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,654

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of March 1, 2025 to May 31, 2025. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on May 30, 2025.

SEC source: 0001871509-25-000104 · wk-form4_1748984107.xml · nonDerivative · entry 2

Osanloo Michael · CIK 0001432086 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,997

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

SEC source: 0001871509-25-000104 · wk-form4_1748984107.xml · nonDerivative · entry 1

Osanloo Michael · CIK 0001432086 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,008

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of March 1, 2025 to May 31, 2025. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on May 30, 2025.

SEC source: 0001871509-25-000105 · wk-form4_1748984135.xml · nonDerivative · entry 2

Ellis Michael K · CIK 0001427740 · Chief Development Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,461

F2 · shares: Represents shares deducted to satisfy tax withholding obligations on the vesting of the award reported herein.

SEC source: 0001871509-25-000105 · wk-form4_1748984135.xml · nonDerivative · entry 1

Ellis Michael K · CIK 0001427740 · Chief Development Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,470

F1 · shares: Includes shares of Class A Common Stock purchased pursuant to the Portillo's Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of March 1, 2025 to May 31, 2025. In accordance with the ESPP, these shares were purchased at a price equal to 90% of the closing price of Issuer's Class A Common Stock on May 30, 2025.

SEC source: 0000950170-25-076001 · ownership.xml · derivative · entry 11

Berkshire Partners LLC · CIK 0001312988 · Director · 10% owner

Berkshire Fund VIII-A, L.P. · CIK 0001514454 · Director · 10% owner

Berkshire Fund VIII, L.P. · CIK 0001514470 · Director · 10% owner

Berkshire Investors III LLC · CIK 0001505184 · Director · 10% owner

Berkshire Investors IV LLC · CIK 0001505185 · Director · 10% owner

Eighth Berkshire Associates LLC · CIK 0001888111 · Director · 10% owner

Berkshire Partners Holdings LLC · CIK 0001597786 · Director · 10% owner

BPSP, L.P. · CIK 0001597787 · Director · 10% owner

Lutzker Joshua Adam · CIK 0001886815 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Berkshire Investors IV LLC

Disclosed balance after: 227,775

Underlying: Class A Common Stock · 590,240 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of PHD Group Holdings LLC ("PHD Group Holdings"), dated as of October 20, 2021, LLC Units (as defined therein) directly held by certain of the Reporting Persons are exchangeable for shares of Class A common stock on a one-for-one basis, subject to certain exceptions, conditions and adjustments as set forth therein. The LLC Units have no expiration date.

F5 · price: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of PHD Group Holdings LLC ("PHD Group Holdings"), dated as of October 20, 2021, LLC Units (as defined therein) directly held by certain of the Reporting Persons are exchangeable for shares of Class A common stock on a one-for-one basis, subject to certain exceptions, conditions and adjustments as set forth therein. The LLC Units have no expiration date.

F5 · derivative.exercise_date: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of PHD Group Holdings LLC ("PHD Group Holdings"), dated as of October 20, 2021, LLC Units (as defined therein) directly held by certain of the Reporting Persons are exchangeable for shares of Class A common stock on a one-for-one basis, subject to certain exceptions, conditions and adjustments as set forth therein. The LLC Units have no expiration date.

F5 · derivative.expiration_date: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of PHD Group Holdings LLC ("PHD Group Holdings"), dated as of October 20, 2021, LLC Units (as defined therein) directly held by certain of the Reporting Persons are exchangeable for shares of Class A common stock on a one-for-one basis, subject to certain exceptions, conditions and adjustments as set forth therein. The LLC Units have no expiration date.

F6 · ownership.nature: Joshua Lutzker is a Managing Director of BP and has a pecuniary interest in certain of the securities held by the other Reporting Persons by virtue of his position at BP and certain affiliated funds and entities. Each of the Reporting Persons, including Mr. Lutzker, disclaims beneficial ownership of any securities reported in this Form 4 except to the extent of their respective pecuniary interests therein. The inclusion of any securities in this Form 4 shall not be deemed an admission of beneficial ownership of the reported securities for purposes of the Act or for any other purpose. Certain of the Reporting Persons may be deemed to be, but do not admit to being, a group for purposes of Section 13(d)(3) under the Act.

SEC source: 0000950170-25-076001 · ownership.xml · derivative · entry 10

Berkshire Partners LLC · CIK 0001312988 · Director · 10% owner

Berkshire Fund VIII-A, L.P. · CIK 0001514454 · Director · 10% owner

Berkshire Fund VIII, L.P. · CIK 0001514470 · Director · 10% owner

Berkshire Investors III LLC · CIK 0001505184 · Director · 10% owner

Berkshire Investors IV LLC · CIK 0001505185 · Director · 10% owner

Eighth Berkshire Associates LLC · CIK 0001888111 · Director · 10% owner

Berkshire Partners Holdings LLC · CIK 0001597786 · Director · 10% owner

BPSP, L.P. · CIK 0001597787 · Director · 10% owner

Lutzker Joshua Adam · CIK 0001886815 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Berkshire Investors III LLC

Disclosed balance after: 69,164

Underlying: Class A Common Stock · 179,210 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of PHD Group Holdings LLC ("PHD Group Holdings"), dated as of October 20, 2021, LLC Units (as defined therein) directly held by certain of the Reporting Persons are exchangeable for shares of Class A common stock on a one-for-one basis, subject to certain exceptions, conditions and adjustments as set forth therein. The LLC Units have no expiration date.

F5 · price: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of PHD Group Holdings LLC ("PHD Group Holdings"), dated as of October 20, 2021, LLC Units (as defined therein) directly held by certain of the Reporting Persons are exchangeable for shares of Class A common stock on a one-for-one basis, subject to certain exceptions, conditions and adjustments as set forth therein. The LLC Units have no expiration date.

F5 · derivative.exercise_date: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of PHD Group Holdings LLC ("PHD Group Holdings"), dated as of October 20, 2021, LLC Units (as defined therein) directly held by certain of the Reporting Persons are exchangeable for shares of Class A common stock on a one-for-one basis, subject to certain exceptions, conditions and adjustments as set forth therein. The LLC Units have no expiration date.

F5 · derivative.expiration_date: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of PHD Group Holdings LLC ("PHD Group Holdings"), dated as of October 20, 2021, LLC Units (as defined therein) directly held by certain of the Reporting Persons are exchangeable for shares of Class A common stock on a one-for-one basis, subject to certain exceptions, conditions and adjustments as set forth therein. The LLC Units have no expiration date.

F6 · ownership.nature: Joshua Lutzker is a Managing Director of BP and has a pecuniary interest in certain of the securities held by the other Reporting Persons by virtue of his position at BP and certain affiliated funds and entities. Each of the Reporting Persons, including Mr. Lutzker, disclaims beneficial ownership of any securities reported in this Form 4 except to the extent of their respective pecuniary interests therein. The inclusion of any securities in this Form 4 shall not be deemed an admission of beneficial ownership of the reported securities for purposes of the Act or for any other purpose. Certain of the Reporting Persons may be deemed to be, but do not admit to being, a group for purposes of Section 13(d)(3) under the Act.

SEC source: 0000950170-25-076001 · ownership.xml · derivative · entry 9

Berkshire Partners LLC · CIK 0001312988 · Director · 10% owner

Berkshire Fund VIII-A, L.P. · CIK 0001514454 · Director · 10% owner

Berkshire Fund VIII, L.P. · CIK 0001514470 · Director · 10% owner

Berkshire Investors III LLC · CIK 0001505184 · Director · 10% owner

Berkshire Investors IV LLC · CIK 0001505185 · Director · 10% owner

Eighth Berkshire Associates LLC · CIK 0001888111 · Director · 10% owner

Berkshire Partners Holdings LLC · CIK 0001597786 · Director · 10% owner

BPSP, L.P. · CIK 0001597787 · Director · 10% owner

Lutzker Joshua Adam · CIK 0001886815 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Berkshire Fund VIII, L.P.

Disclosed balance after: 2,516,498

Underlying: Class A Common Stock · 6,521,015 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of PHD Group Holdings LLC ("PHD Group Holdings"), dated as of October 20, 2021, LLC Units (as defined therein) directly held by certain of the Reporting Persons are exchangeable for shares of Class A common stock on a one-for-one basis, subject to certain exceptions, conditions and adjustments as set forth therein. The LLC Units have no expiration date.

F5 · price: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of PHD Group Holdings LLC ("PHD Group Holdings"), dated as of October 20, 2021, LLC Units (as defined therein) directly held by certain of the Reporting Persons are exchangeable for shares of Class A common stock on a one-for-one basis, subject to certain exceptions, conditions and adjustments as set forth therein. The LLC Units have no expiration date.

F5 · derivative.exercise_date: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of PHD Group Holdings LLC ("PHD Group Holdings"), dated as of October 20, 2021, LLC Units (as defined therein) directly held by certain of the Reporting Persons are exchangeable for shares of Class A common stock on a one-for-one basis, subject to certain exceptions, conditions and adjustments as set forth therein. The LLC Units have no expiration date.

F5 · derivative.expiration_date: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of PHD Group Holdings LLC ("PHD Group Holdings"), dated as of October 20, 2021, LLC Units (as defined therein) directly held by certain of the Reporting Persons are exchangeable for shares of Class A common stock on a one-for-one basis, subject to certain exceptions, conditions and adjustments as set forth therein. The LLC Units have no expiration date.

F2 · ownership.nature: Securities held by VIII may be deemed to be beneficially owned by Berkshire Partners Holdings LLC ("BPH"); BPSP, L.P. ("BPSP"); Eighth Berkshire Associates LLC ("8BA"), its general partner; and BP, its investment adviser.

F6 · ownership.nature: Joshua Lutzker is a Managing Director of BP and has a pecuniary interest in certain of the securities held by the other Reporting Persons by virtue of his position at BP and certain affiliated funds and entities. Each of the Reporting Persons, including Mr. Lutzker, disclaims beneficial ownership of any securities reported in this Form 4 except to the extent of their respective pecuniary interests therein. The inclusion of any securities in this Form 4 shall not be deemed an admission of beneficial ownership of the reported securities for purposes of the Act or for any other purpose. Certain of the Reporting Persons may be deemed to be, but do not admit to being, a group for purposes of Section 13(d)(3) under the Act.

SEC source: 0000950170-25-076001 · ownership.xml · nonDerivative · entry 7

Berkshire Partners LLC · CIK 0001312988 · Director · 10% owner

Berkshire Fund VIII-A, L.P. · CIK 0001514454 · Director · 10% owner

Berkshire Fund VIII, L.P. · CIK 0001514470 · Director · 10% owner

Berkshire Investors III LLC · CIK 0001505184 · Director · 10% owner

Berkshire Investors IV LLC · CIK 0001505185 · Director · 10% owner

Eighth Berkshire Associates LLC · CIK 0001888111 · Director · 10% owner

Berkshire Partners Holdings LLC · CIK 0001597786 · Director · 10% owner

BPSP, L.P. · CIK 0001597787 · Director · 10% owner

Lutzker Joshua Adam · CIK 0001886815 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Berkshire Fund VIII-A, L.P.

Disclosed balance after: 1,045,630

F1 · shares: On May 19, 2025, the following funds or entities affiliated with Berkshire Partners LLC ("BP") sold shares of Class A common stock of the Issuer in a block trade pursuant to Rule 144 as follows: 6,521,015 by Berkshire Fund VIII, L.P. ("VIII"); 179,210 by Berkshire Investors III LLC ("BI III"); 590,240 by Berkshire Investors IV LLC ("BI IV"); and 2,709,535 by Berkshire Fund VIII-A, L.P. ("VIII-A").

F3 · ownership.nature: Securities held by VIII-A may be deemed to be beneficially owned by BPH; BPSP; 8BA, its general partner; and BP, its investment adviser. BPH is the general partner of BPSP, which is the managing member of BP. As the managing member of BP, BPSP may be deemed to beneficially own shares of Class A common stock that are beneficially owned by BP. As the general partner of BPSP, BPH may be deemed to beneficially own shares of Class A common stock that are beneficially owned by BPSP.

F6 · ownership.nature: Joshua Lutzker is a Managing Director of BP and has a pecuniary interest in certain of the securities held by the other Reporting Persons by virtue of his position at BP and certain affiliated funds and entities. Each of the Reporting Persons, including Mr. Lutzker, disclaims beneficial ownership of any securities reported in this Form 4 except to the extent of their respective pecuniary interests therein. The inclusion of any securities in this Form 4 shall not be deemed an admission of beneficial ownership of the reported securities for purposes of the Act or for any other purpose. Certain of the Reporting Persons may be deemed to be, but do not admit to being, a group for purposes of Section 13(d)(3) under the Act.

SEC source: 0000950170-25-076001 · ownership.xml · nonDerivative · entry 6

Berkshire Partners LLC · CIK 0001312988 · Director · 10% owner

Berkshire Fund VIII-A, L.P. · CIK 0001514454 · Director · 10% owner

Berkshire Fund VIII, L.P. · CIK 0001514470 · Director · 10% owner

Berkshire Investors III LLC · CIK 0001505184 · Director · 10% owner

Berkshire Investors IV LLC · CIK 0001505185 · Director · 10% owner

Eighth Berkshire Associates LLC · CIK 0001888111 · Director · 10% owner

Berkshire Partners Holdings LLC · CIK 0001597786 · Director · 10% owner

BPSP, L.P. · CIK 0001597787 · Director · 10% owner

Lutzker Joshua Adam · CIK 0001886815 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Berkshire Investors IV LLC

Disclosed balance after: 0

F1 · shares: On May 19, 2025, the following funds or entities affiliated with Berkshire Partners LLC ("BP") sold shares of Class A common stock of the Issuer in a block trade pursuant to Rule 144 as follows: 6,521,015 by Berkshire Fund VIII, L.P. ("VIII"); 179,210 by Berkshire Investors III LLC ("BI III"); 590,240 by Berkshire Investors IV LLC ("BI IV"); and 2,709,535 by Berkshire Fund VIII-A, L.P. ("VIII-A").

F6 · ownership.nature: Joshua Lutzker is a Managing Director of BP and has a pecuniary interest in certain of the securities held by the other Reporting Persons by virtue of his position at BP and certain affiliated funds and entities. Each of the Reporting Persons, including Mr. Lutzker, disclaims beneficial ownership of any securities reported in this Form 4 except to the extent of their respective pecuniary interests therein. The inclusion of any securities in this Form 4 shall not be deemed an admission of beneficial ownership of the reported securities for purposes of the Act or for any other purpose. Certain of the Reporting Persons may be deemed to be, but do not admit to being, a group for purposes of Section 13(d)(3) under the Act.

SEC source: 0000950170-25-076001 · ownership.xml · nonDerivative · entry 5

Berkshire Partners LLC · CIK 0001312988 · Director · 10% owner

Berkshire Fund VIII-A, L.P. · CIK 0001514454 · Director · 10% owner

Berkshire Fund VIII, L.P. · CIK 0001514470 · Director · 10% owner

Berkshire Investors III LLC · CIK 0001505184 · Director · 10% owner

Berkshire Investors IV LLC · CIK 0001505185 · Director · 10% owner

Eighth Berkshire Associates LLC · CIK 0001888111 · Director · 10% owner

Berkshire Partners Holdings LLC · CIK 0001597786 · Director · 10% owner

BPSP, L.P. · CIK 0001597787 · Director · 10% owner

Lutzker Joshua Adam · CIK 0001886815 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Berkshire Investors IV LLC

Disclosed balance after: 590,240

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · price: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of PHD Group Holdings LLC ("PHD Group Holdings"), dated as of October 20, 2021, LLC Units (as defined therein) directly held by certain of the Reporting Persons are exchangeable for shares of Class A common stock on a one-for-one basis, subject to certain exceptions, conditions and adjustments as set forth therein. The LLC Units have no expiration date.

F6 · ownership.nature: Joshua Lutzker is a Managing Director of BP and has a pecuniary interest in certain of the securities held by the other Reporting Persons by virtue of his position at BP and certain affiliated funds and entities. Each of the Reporting Persons, including Mr. Lutzker, disclaims beneficial ownership of any securities reported in this Form 4 except to the extent of their respective pecuniary interests therein. The inclusion of any securities in this Form 4 shall not be deemed an admission of beneficial ownership of the reported securities for purposes of the Act or for any other purpose. Certain of the Reporting Persons may be deemed to be, but do not admit to being, a group for purposes of Section 13(d)(3) under the Act.

SEC source: 0000950170-25-076001 · ownership.xml · nonDerivative · entry 4

Berkshire Partners LLC · CIK 0001312988 · Director · 10% owner

Berkshire Fund VIII-A, L.P. · CIK 0001514454 · Director · 10% owner

Berkshire Fund VIII, L.P. · CIK 0001514470 · Director · 10% owner

Berkshire Investors III LLC · CIK 0001505184 · Director · 10% owner

Berkshire Investors IV LLC · CIK 0001505185 · Director · 10% owner

Eighth Berkshire Associates LLC · CIK 0001888111 · Director · 10% owner

Berkshire Partners Holdings LLC · CIK 0001597786 · Director · 10% owner

BPSP, L.P. · CIK 0001597787 · Director · 10% owner

Lutzker Joshua Adam · CIK 0001886815 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Berkshire Investors III LLC

Disclosed balance after: 0

F1 · shares: On May 19, 2025, the following funds or entities affiliated with Berkshire Partners LLC ("BP") sold shares of Class A common stock of the Issuer in a block trade pursuant to Rule 144 as follows: 6,521,015 by Berkshire Fund VIII, L.P. ("VIII"); 179,210 by Berkshire Investors III LLC ("BI III"); 590,240 by Berkshire Investors IV LLC ("BI IV"); and 2,709,535 by Berkshire Fund VIII-A, L.P. ("VIII-A").

F6 · ownership.nature: Joshua Lutzker is a Managing Director of BP and has a pecuniary interest in certain of the securities held by the other Reporting Persons by virtue of his position at BP and certain affiliated funds and entities. Each of the Reporting Persons, including Mr. Lutzker, disclaims beneficial ownership of any securities reported in this Form 4 except to the extent of their respective pecuniary interests therein. The inclusion of any securities in this Form 4 shall not be deemed an admission of beneficial ownership of the reported securities for purposes of the Act or for any other purpose. Certain of the Reporting Persons may be deemed to be, but do not admit to being, a group for purposes of Section 13(d)(3) under the Act.