POST

SEC source: 0001257186-26-000002 · wk-form4_1767649746.xml · derivative · entry 1

CURL GREGORY L · CIK 0001257186 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,126.56

Underlying: Common Stock · 112.174 shares

Expires not disclosed

F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors.

F2 · derivative.exercise_date: The stock equivalents have no fixed exercisable or expiration dates.

F2 · derivative.expiration_date: The stock equivalents have no fixed exercisable or expiration dates.

SEC source: 0001184295-26-000002 · wk-form4_1767650116.xml · derivative · entry 1

SKARIE DAVID P · CIK 0001184295 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,712.43

Underlying: Common Stock · 134.609 shares

Expires not disclosed

F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors.

F2 · derivative.exercise_date: The stock equivalents have no fixed exercisable or expiration dates.

F2 · derivative.expiration_date: The stock equivalents have no fixed exercisable or expiration dates.

SEC source: 0001790648-26-000002 · wk-form4_1767650058.xml · derivative · entry 1

JOHNSON JENNIFER KUPERMAN · CIK 0001790648 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,426.67

Underlying: Common Stock · 112.174 shares

Expires not disclosed

F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors.

F2 · derivative.exercise_date: The stock equivalents have no fixed exercisable or expiration dates.

F2 · derivative.expiration_date: The stock equivalents have no fixed exercisable or expiration dates.

SEC source: 0001557413-25-000016 · wk-form4_1767045974.xml · nonDerivative · entry 2

GRAY DIEDRE J · CIK 0001557413 · EVP, GC & CAO, SECY

10b5-1 filing: No plan indicated

Ownership: Indirect · By SLAT (Spouse)

Disclosed balance after: 131,187

SEC source: 0001557413-25-000016 · wk-form4_1767045974.xml · nonDerivative · entry 1

GRAY DIEDRE J · CIK 0001557413 · EVP, GC & CAO, SECY

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 33,716

SEC source: 0001052058-25-000020 · wk-form4_1766189975.xml · derivative · entry 8

STIRITZ WILLIAM P · CIK 0001052058 · Chairman Emeritus

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 170,000.797 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.

F1 · derivative.exercise_price: Upon Reporting Person's retirement from the Board of Directors of Post Holdings, Inc. ("Post") on December 16, 2025, the Reporting Person's earned retainers as a Director of Post that were deferred into Post stock equivalents under Post's Deferred Compensation Plan for Non-Management Directors (the "Plan") were converted into cash as soon as administratively practicable following his retirement pursuant to the terms of the Plan. Each stock equivalent was the economic equivalent of one share of Post common stock. The cash will be distributed to the Reporting Person in accordance with the applicable elections previously made by the Reporting Person, including lump sum payout at his retirement, in five annual installments following his retirement and in ten annual installments following his retirement.

F1 · price: Upon Reporting Person's retirement from the Board of Directors of Post Holdings, Inc. ("Post") on December 16, 2025, the Reporting Person's earned retainers as a Director of Post that were deferred into Post stock equivalents under Post's Deferred Compensation Plan for Non-Management Directors (the "Plan") were converted into cash as soon as administratively practicable following his retirement pursuant to the terms of the Plan. Each stock equivalent was the economic equivalent of one share of Post common stock. The cash will be distributed to the Reporting Person in accordance with the applicable elections previously made by the Reporting Person, including lump sum payout at his retirement, in five annual installments following his retirement and in ten annual installments following his retirement.

F1 · derivative.exercise_date: Upon Reporting Person's retirement from the Board of Directors of Post Holdings, Inc. ("Post") on December 16, 2025, the Reporting Person's earned retainers as a Director of Post that were deferred into Post stock equivalents under Post's Deferred Compensation Plan for Non-Management Directors (the "Plan") were converted into cash as soon as administratively practicable following his retirement pursuant to the terms of the Plan. Each stock equivalent was the economic equivalent of one share of Post common stock. The cash will be distributed to the Reporting Person in accordance with the applicable elections previously made by the Reporting Person, including lump sum payout at his retirement, in five annual installments following his retirement and in ten annual installments following his retirement.

F1 · derivative.expiration_date: Upon Reporting Person's retirement from the Board of Directors of Post Holdings, Inc. ("Post") on December 16, 2025, the Reporting Person's earned retainers as a Director of Post that were deferred into Post stock equivalents under Post's Deferred Compensation Plan for Non-Management Directors (the "Plan") were converted into cash as soon as administratively practicable following his retirement pursuant to the terms of the Plan. Each stock equivalent was the economic equivalent of one share of Post common stock. The cash will be distributed to the Reporting Person in accordance with the applicable elections previously made by the Reporting Person, including lump sum payout at his retirement, in five annual installments following his retirement and in ten annual installments following his retirement.

SEC source: 0001052058-25-000020 · wk-form4_1766189975.xml · nonDerivative · entry 4

STIRITZ WILLIAM P · CIK 0001052058 · Chairman Emeritus

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,334,667

F1 · shares: Upon Reporting Person's retirement from the Board of Directors of Post Holdings, Inc. ("Post") on December 16, 2025, the Reporting Person's earned retainers as a Director of Post that were deferred into Post stock equivalents under Post's Deferred Compensation Plan for Non-Management Directors (the "Plan") were converted into cash as soon as administratively practicable following his retirement pursuant to the terms of the Plan. Each stock equivalent was the economic equivalent of one share of Post common stock. The cash will be distributed to the Reporting Person in accordance with the applicable elections previously made by the Reporting Person, including lump sum payout at his retirement, in five annual installments following his retirement and in ten annual installments following his retirement.

SEC source: 0001052058-25-000020 · wk-form4_1766189975.xml · nonDerivative · entry 3

STIRITZ WILLIAM P · CIK 0001052058 · Chairman Emeritus

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,504,667.797

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.

F1 · shares: Upon Reporting Person's retirement from the Board of Directors of Post Holdings, Inc. ("Post") on December 16, 2025, the Reporting Person's earned retainers as a Director of Post that were deferred into Post stock equivalents under Post's Deferred Compensation Plan for Non-Management Directors (the "Plan") were converted into cash as soon as administratively practicable following his retirement pursuant to the terms of the Plan. Each stock equivalent was the economic equivalent of one share of Post common stock. The cash will be distributed to the Reporting Person in accordance with the applicable elections previously made by the Reporting Person, including lump sum payout at his retirement, in five annual installments following his retirement and in ten annual installments following his retirement.

F1 · price: Upon Reporting Person's retirement from the Board of Directors of Post Holdings, Inc. ("Post") on December 16, 2025, the Reporting Person's earned retainers as a Director of Post that were deferred into Post stock equivalents under Post's Deferred Compensation Plan for Non-Management Directors (the "Plan") were converted into cash as soon as administratively practicable following his retirement pursuant to the terms of the Plan. Each stock equivalent was the economic equivalent of one share of Post common stock. The cash will be distributed to the Reporting Person in accordance with the applicable elections previously made by the Reporting Person, including lump sum payout at his retirement, in five annual installments following his retirement and in ten annual installments following his retirement.

SEC source: 0001052058-25-000020 · wk-form4_1766189975.xml · derivative · entry 7

STIRITZ WILLIAM P · CIK 0001052058 · Chairman Emeritus

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 170,000.797

Underlying: Common Stock · 10,703.225 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.

F1 · derivative.exercise_price: Upon Reporting Person's retirement from the Board of Directors of Post Holdings, Inc. ("Post") on December 16, 2025, the Reporting Person's earned retainers as a Director of Post that were deferred into Post stock equivalents under Post's Deferred Compensation Plan for Non-Management Directors (the "Plan") were converted into cash as soon as administratively practicable following his retirement pursuant to the terms of the Plan. Each stock equivalent was the economic equivalent of one share of Post common stock. The cash will be distributed to the Reporting Person in accordance with the applicable elections previously made by the Reporting Person, including lump sum payout at his retirement, in five annual installments following his retirement and in ten annual installments following his retirement.

F1 · price: Upon Reporting Person's retirement from the Board of Directors of Post Holdings, Inc. ("Post") on December 16, 2025, the Reporting Person's earned retainers as a Director of Post that were deferred into Post stock equivalents under Post's Deferred Compensation Plan for Non-Management Directors (the "Plan") were converted into cash as soon as administratively practicable following his retirement pursuant to the terms of the Plan. Each stock equivalent was the economic equivalent of one share of Post common stock. The cash will be distributed to the Reporting Person in accordance with the applicable elections previously made by the Reporting Person, including lump sum payout at his retirement, in five annual installments following his retirement and in ten annual installments following his retirement.

F1 · derivative.exercise_date: Upon Reporting Person's retirement from the Board of Directors of Post Holdings, Inc. ("Post") on December 16, 2025, the Reporting Person's earned retainers as a Director of Post that were deferred into Post stock equivalents under Post's Deferred Compensation Plan for Non-Management Directors (the "Plan") were converted into cash as soon as administratively practicable following his retirement pursuant to the terms of the Plan. Each stock equivalent was the economic equivalent of one share of Post common stock. The cash will be distributed to the Reporting Person in accordance with the applicable elections previously made by the Reporting Person, including lump sum payout at his retirement, in five annual installments following his retirement and in ten annual installments following his retirement.

F1 · derivative.expiration_date: Upon Reporting Person's retirement from the Board of Directors of Post Holdings, Inc. ("Post") on December 16, 2025, the Reporting Person's earned retainers as a Director of Post that were deferred into Post stock equivalents under Post's Deferred Compensation Plan for Non-Management Directors (the "Plan") were converted into cash as soon as administratively practicable following his retirement pursuant to the terms of the Plan. Each stock equivalent was the economic equivalent of one share of Post common stock. The cash will be distributed to the Reporting Person in accordance with the applicable elections previously made by the Reporting Person, including lump sum payout at his retirement, in five annual installments following his retirement and in ten annual installments following his retirement.

SEC source: 0001052058-25-000020 · wk-form4_1766189975.xml · nonDerivative · entry 2

STIRITZ WILLIAM P · CIK 0001052058 · Chairman Emeritus

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,334,667

F1 · shares: Upon Reporting Person's retirement from the Board of Directors of Post Holdings, Inc. ("Post") on December 16, 2025, the Reporting Person's earned retainers as a Director of Post that were deferred into Post stock equivalents under Post's Deferred Compensation Plan for Non-Management Directors (the "Plan") were converted into cash as soon as administratively practicable following his retirement pursuant to the terms of the Plan. Each stock equivalent was the economic equivalent of one share of Post common stock. The cash will be distributed to the Reporting Person in accordance with the applicable elections previously made by the Reporting Person, including lump sum payout at his retirement, in five annual installments following his retirement and in ten annual installments following his retirement.

SEC source: 0001052058-25-000020 · wk-form4_1766189975.xml · nonDerivative · entry 1

STIRITZ WILLIAM P · CIK 0001052058 · Chairman Emeritus

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,345,370.225

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.

F1 · shares: Upon Reporting Person's retirement from the Board of Directors of Post Holdings, Inc. ("Post") on December 16, 2025, the Reporting Person's earned retainers as a Director of Post that were deferred into Post stock equivalents under Post's Deferred Compensation Plan for Non-Management Directors (the "Plan") were converted into cash as soon as administratively practicable following his retirement pursuant to the terms of the Plan. Each stock equivalent was the economic equivalent of one share of Post common stock. The cash will be distributed to the Reporting Person in accordance with the applicable elections previously made by the Reporting Person, including lump sum payout at his retirement, in five annual installments following his retirement and in ten annual installments following his retirement.

F1 · price: Upon Reporting Person's retirement from the Board of Directors of Post Holdings, Inc. ("Post") on December 16, 2025, the Reporting Person's earned retainers as a Director of Post that were deferred into Post stock equivalents under Post's Deferred Compensation Plan for Non-Management Directors (the "Plan") were converted into cash as soon as administratively practicable following his retirement pursuant to the terms of the Plan. Each stock equivalent was the economic equivalent of one share of Post common stock. The cash will be distributed to the Reporting Person in accordance with the applicable elections previously made by the Reporting Person, including lump sum payout at his retirement, in five annual installments following his retirement and in ten annual installments following his retirement.

SEC source: 0001052058-25-000016 · wk-form4_1766095922.xml · derivative · entry 1

STIRITZ WILLIAM P · CIK 0001052058 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,721.757

Underlying: Common Stock · 57.966 shares

Expires not disclosed

F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person was credited with stock equivalents earned during the month of December as soon as administratively practicable following Mr. Stiritz's retirement as the Chairman of the Board of Directors on December 16, 2025. The value of these stock equivalents will be distributed (on a one-for-one basis) in the form of cash after Mr. Stiritz's retirement from the Board of Directors.

F2 · derivative.exercise_date: At issuance, the stock equivalents have no fixed exercisable or expiration dates.

F2 · derivative.expiration_date: At issuance, the stock equivalents have no fixed exercisable or expiration dates.

SEC source: 0001759632-25-000011 · wk-form4_1765231321.xml · nonDerivative · entry 1

HARPER BRADLY A · CIK 0001759632 · SVP, CHIEF ACCTING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,441

SEC source: 0001954094-25-000013 · wk-form4_1764973687.xml · nonDerivative · entry 1

MAINER MATTHEW J · CIK 0001954094 · EVP, CFO & TREASURER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 74,670

SEC source: 0001954094-25-000011 · wk-form4_1764711877.xml · nonDerivative · entry 1

MAINER MATTHEW J · CIK 0001954094 · EVP, CFO & TREASURER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,270

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 609 restricted stock units in accordance with Rule 16b-3.

SEC source: 0001759632-25-000009 · wk-form4_1764711779.xml · nonDerivative · entry 2

HARPER BRADLY A · CIK 0001759632 · SVP, CHIEF ACCTING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,099

F2 · shares: Surrender of shares in payment of tax withholding as a result of the vesting of 452 PRSUs in accordance with Rule 16b-3.

SEC source: 0001759632-25-000009 · wk-form4_1764711779.xml · nonDerivative · entry 1

HARPER BRADLY A · CIK 0001759632 · SVP, CHIEF ACCTING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,299

F1 · shares: Surrender of shares in payment of tax withholding as a result of the vesting of 558 performance-based restricted stock units ("PRSUs") in accordance with Rule 16b-3.

SEC source: 0001530950-25-000279 · wk-form4_1764711625.xml · nonDerivative · entry 2

GRAY DIEDRE J · CIK 0001557413 · EVP, GC & CAO, SECY

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 164,903

F1 · kind: The transfer of shares to the Reporting Person's revocable living trust resulted in a decrease in the number of shares the Reporting Person beneficially owns directly and a corresponding increase in the number of shares the Reporting Person beneficially owns indirectly through the trust. The Reporting Person believes that the transfer of shares to the trust constitutes a change in form of beneficial ownership of the shares, exempted by Rule 16a-13 under the Securities Exchange Act of 1934, as amended.

SEC source: 0001530950-25-000279 · wk-form4_1764711625.xml · nonDerivative · entry 1

GRAY DIEDRE J · CIK 0001557413 · EVP, GC & CAO, SECY

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,886

F1 · kind: The transfer of shares to the Reporting Person's revocable living trust resulted in a decrease in the number of shares the Reporting Person beneficially owns directly and a corresponding increase in the number of shares the Reporting Person beneficially owns indirectly through the trust. The Reporting Person believes that the transfer of shares to the trust constitutes a change in form of beneficial ownership of the shares, exempted by Rule 16a-13 under the Securities Exchange Act of 1934, as amended.

SEC source: 0001343352-25-000014 · wk-form4_1764797991.xml · nonDerivative · entry 2

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Indirect · By Spouse

Disclosed balance after: 152,740

SEC source: 0001343352-25-000014 · wk-form4_1764797991.xml · nonDerivative · entry 1

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,725

SEC source: 0001530950-25-000280 · wk-form4_1764712256.xml · derivative · entry 1

KEMPER DAVID W · CIK 0000924750 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,703.375

Underlying: Common Stock · 165.546 shares

Expires not disclosed

F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors.

F2 · derivative.exercise_date: The stock equivalents have no fixed exercisable or expiration dates.

F2 · derivative.expiration_date: The stock equivalents have no fixed exercisable or expiration dates.

SEC source: 0001052058-25-000014 · wk-form4_1764712661.xml · derivative · entry 1

STIRITZ WILLIAM P · CIK 0001052058 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,638.318

Underlying: Common Stock · 106.804 shares

Expires not disclosed

F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors.

F2 · derivative.exercise_date: The stock equivalents have no fixed exercisable or expiration dates.

F2 · derivative.expiration_date: The stock equivalents have no fixed exercisable or expiration dates.

SEC source: 0001861480-25-000009 · wk-form4_1764712128.xml · derivative · entry 1

ERB THOMAS C · CIK 0001861480 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,313.3

Underlying: Common Stock · 106.804 shares

Expires not disclosed

F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors.

F2 · derivative.exercise_date: The stock equivalents have no fixed exercisable or expiration dates.

F2 · derivative.expiration_date: The stock equivalents have no fixed exercisable or expiration dates.

SEC source: 0001816548-25-000009 · wk-form4_1764711972.xml · derivative · entry 1

BURWELL DOROTHY M · CIK 0001816548 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,824.981

Underlying: Common Stock · 106.804 shares

Expires not disclosed

F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors.

F2 · derivative.exercise_date: The stock equivalents have no fixed exercisable or expiration dates.

F2 · derivative.expiration_date: The stock equivalents have no fixed exercisable or expiration dates.

SEC source: 0001257186-25-000011 · wk-form4_1764712057.xml · derivative · entry 1

CURL GREGORY L · CIK 0001257186 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,013.058

Underlying: Common Stock · 106.804 shares

Expires not disclosed

F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors.

F2 · derivative.exercise_date: The stock equivalents have no fixed exercisable or expiration dates.

F2 · derivative.expiration_date: The stock equivalents have no fixed exercisable or expiration dates.

SEC source: 0001184295-25-000011 · wk-form4_1764712586.xml · derivative · entry 1

SKARIE DAVID P · CIK 0001184295 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,571.652

Underlying: Common Stock · 128.165 shares

Expires not disclosed

F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors.

F2 · derivative.exercise_date: The stock equivalents have no fixed exercisable or expiration dates.

F2 · derivative.expiration_date: The stock equivalents have no fixed exercisable or expiration dates.

SEC source: 0001790648-25-000011 · wk-form4_1764712338.xml · derivative · entry 1

JOHNSON JENNIFER KUPERMAN · CIK 0001790648 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,313.3

Underlying: Common Stock · 106.804 shares

Expires not disclosed

F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors.

F2 · derivative.exercise_date: The stock equivalents have no fixed exercisable or expiration dates.

F2 · derivative.expiration_date: The stock equivalents have no fixed exercisable or expiration dates.

SEC source: 0001882375-25-000014 · wk-form4_1764191341.xml · nonDerivative · entry 1

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,542

F1 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $99.99 to $100.65 per share. 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 sold at each separate price within the range set forth in this footnote.

SEC source: 0001530950-25-000266 · wk-form4_1764108206.xml · nonDerivative · entry 1

KEMPER DAVID W · CIK 0000924750 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,522

SEC source: 0001343352-25-000012 · wk-form4_1763677895.xml · nonDerivative · entry 1

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,725

F1 · shares: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. common stock. The RSUs were granted under the Amended and Restated 2021 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3 and vest in full on the first anniversary of the date of grant, subject to the terms of the award agreement.

SEC source: 0001730096-25-000009 · wk-form4_1763677837.xml · nonDerivative · entry 2

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 197,756

F2 · shares: Each RSU represents a contingent right to receive one share of Post common stock. The RSUs were granted under the A&R 2021 LTIP in a transaction exempt under Rule 16b-3 and vest in full on the first anniversary of the date of grant, subject to the terms of the award agreement.

SEC source: 0001730096-25-000009 · wk-form4_1763677837.xml · nonDerivative · entry 1

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 194,513

F1 · shares: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock. The RSUs were granted under the Post Holdings, Inc. Amended and Restated 2021 Long-Term Incentive Plan (the "A&R 2021 LTIP") in a transaction exempt under Rule 16b-3 and vest in equal annual increments over three years, subject to the terms of the award agreement.

SEC source: 0001954094-25-000009 · wk-form4_1763677581.xml · nonDerivative · entry 2

MAINER MATTHEW J · CIK 0001954094 · EVP, CFO & TREASURER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,539

F2 · shares: Each RSU represents a contingent right to receive one share of Post common stock. The RSUs were granted under the A&R 2021 LTIP in a transaction exempt under Rule 16b-3 and vest in full on the first anniversary of the date of grant, subject to the terms of the award agreement.

SEC source: 0001954094-25-000009 · wk-form4_1763677581.xml · nonDerivative · entry 1

MAINER MATTHEW J · CIK 0001954094 · EVP, CFO & TREASURER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,416

F1 · shares: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock. The RSUs were granted under the Post Holdings, Inc. Amended and Restated 2021 Long-Term Incentive Plan (the "A&R 2021 LTIP") in a transaction exempt under Rule 16b-3 and vest in equal annual increments over three years, subject to the terms of the award agreement.

SEC source: 0001557413-25-000012 · wk-form4_1763677227.xml · nonDerivative · entry 2

GRAY DIEDRE J · CIK 0001557413 · EVP, GC & CAO, SECY

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,860

F2 · shares: Each RSU represents a contingent right to receive one share of Post common stock. The RSUs were granted under the A&R 2021 LTIP in a transaction exempt under Rule 16b-3 and vest in full on the first anniversary of the date of grant, subject to the terms of the award agreement.

SEC source: 0001557413-25-000012 · wk-form4_1763677227.xml · nonDerivative · entry 1

GRAY DIEDRE J · CIK 0001557413 · EVP, GC & CAO, SECY

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,737

F1 · shares: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock. The RSUs were granted under the Post Holdings, Inc. Amended and Restated 2021 Long-Term Incentive Plan (the "A&R 2021 LTIP") in a transaction exempt under Rule 16b-3 and vest in equal annual increments over three years, subject to the terms of the award agreement.

SEC source: 0001540021-25-000011 · wk-form4_1763677691.xml · nonDerivative · entry 2

VITALE ROBERT V · CIK 0001540021 · Director · PRESIDENT & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 987,338

F2 · shares: Each RSU represents a contingent right to receive one share of Post common stock. The RSUs were granted under the A&R 2021 LTIP in a transaction exempt under Rule 16b-3 and vest in full on the first anniversary of the date of grant, subject to the terms of the award agreement.

SEC source: 0001540021-25-000011 · wk-form4_1763677691.xml · nonDerivative · entry 1

VITALE ROBERT V · CIK 0001540021 · Director · PRESIDENT & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 964,927

F1 · shares: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock. The RSUs were granted under the Post Holdings, Inc. Amended and Restated 2021 Long-Term Incentive Plan (the "A&R 2021 LTIP") in a transaction exempt under Rule 16b-3 and vest in equal annual increments over three years, subject to the terms of the award agreement.

SEC source: 0001759632-25-000007 · wk-form4_1763677486.xml · nonDerivative · entry 2

HARPER BRADLY A · CIK 0001759632 · SVP, CHIEF ACCTING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,545

F2 · shares: Acquisition of the contingent right to receive shares of Post common stock in the future for certain earned performance-based restricted stock units awarded under the A&R 2021 LTIP pursuant to Rule 16b-3 as a result of Company's level of achievement of certain financial targets for the performance period of October 1, 2024 through September 30, 2025.

SEC source: 0001759632-25-000007 · wk-form4_1763677486.xml · nonDerivative · entry 1

HARPER BRADLY A · CIK 0001759632 · SVP, CHIEF ACCTING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,641

F1 · shares: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock. The RSUs were granted under the Post Holdings, Inc. Amended and Restated 2021 Long-Term Incentive Plan (the "A&R 2021 LTIP") in a transaction exempt under Rule 16b-3 and vest in equal annual increments over three years, subject to the terms of the award agreement.

SEC source: 0001882375-25-000011 · wk-form4_1763677120.xml · nonDerivative · entry 2

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,542

F2 · shares: Each RSU represents a contingent right to receive one share of Post common stock. The RSUs were granted under the A&R 2021 LTIP in a transaction exempt under Rule 16b-3 and vest in full on the first anniversary of the date of grant, subject to the terms of the award agreement.

SEC source: 0001882375-25-000011 · wk-form4_1763677120.xml · nonDerivative · entry 1

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,059

F1 · shares: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock. The RSUs were granted under the Post Holdings, Inc. Amended and Restated 2021 Long-Term Incentive Plan (the "A&R 2021 LTIP") in a transaction exempt under Rule 16b-3 and vest in equal annual increments over three years, subject to the terms of the award agreement.

SEC source: 0001759632-25-000005 · wk-form4_1763503724.xml · derivative · entry 6

HARPER BRADLY A · CIK 0001759632 · SVP, CHIEF ACCTING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 435 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.

F4 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Post Holdings, Inc. common stock. The RSUs were granted under the Post Holdings, Inc. 2021 Long-Term Incentive Plan, which was subsequently amended and restated, in a transaction exempt under Rule 16b-3.

F5 · derivative.exercise_date: One-fourth of the RSUs vested on each of the first, second, third and fourth anniversaries on the date of grant without any action on the part of the participant.

F5 · derivative.expiration_date: One-fourth of the RSUs vested on each of the first, second, third and fourth anniversaries on the date of grant without any action on the part of the participant.

SEC source: 0001759632-25-000005 · wk-form4_1763503724.xml · nonDerivative · entry 4

HARPER BRADLY A · CIK 0001759632 · SVP, CHIEF ACCTING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,658

F3 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 435 RSUs in accordance with Rule 16b-3.

SEC source: 0001759632-25-000005 · wk-form4_1763503724.xml · nonDerivative · entry 3

HARPER BRADLY A · CIK 0001759632 · SVP, CHIEF ACCTING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,850

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.

SEC source: 0001343352-25-000010 · wk-form4_1763504104.xml · nonDerivative · entry 2

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,790

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 6,246 RSUs in accordance with Rule 16b-3.

SEC source: 0001730096-25-000007 · wk-form4_1763504003.xml · nonDerivative · entry 2

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 177,831

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 5,527 RSUs in accordance with Rule 16b-3.

SEC source: 0001540021-25-000009 · wk-form4_1763503921.xml · nonDerivative · entry 2

VITALE ROBERT V · CIK 0001540021 · Director · PRESIDENT & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 919,560

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 18,245 RSUs in accordance with Rule 16b-3.

SEC source: 0001954094-25-000007 · wk-form4_1763503812.xml · nonDerivative · entry 2

MAINER MATTHEW J · CIK 0001954094 · EVP, CFO & TREASURER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,078

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 2,127 RSUs in accordance with Rule 16b-3.