POST

SEC source: 0001530950-25-000083 · wk-form4_1739913743.xml · nonDerivative · entry 1

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Indirect · By Family Trust

Disclosed balance after: 2,586

SEC source: 0001530950-25-000079 · wk-form4_1739481844.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 837,199

SEC source: 0001530950-25-000078 · wk-form4_1739481788.xml · nonDerivative · entry 1

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,501

F1 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $111.6000 to $112.1050 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: 0001530950-25-000075 · wk-form4_1739397239.xml · nonDerivative · entry 3

KEMPER DAVID W · CIK 0000924750 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,722

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $110.50 to $110.95 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: 0001530950-25-000075 · wk-form4_1739397239.xml · derivative · entry 4

KEMPER DAVID W · CIK 0000924750 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 14,828 shares

Expires 2025-09-01

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.

F3 · derivative.exercise_date: Stock appreciation rights were granted under the Post Holdings, Inc. 2012 Long-Term Incentive Plan on September 1, 2015 and became fully vested three-years from the date of grant.

SEC source: 0001530950-25-000075 · wk-form4_1739397239.xml · nonDerivative · entry 2

KEMPER DAVID W · CIK 0000924750 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,661

F1 · shares: Surrender of shares in payment of exercise price in accordance with Rule 16b-3. The remainder of the shares are being held by the Reporting Person.

SEC source: 0001530950-25-000075 · wk-form4_1739397239.xml · nonDerivative · entry 1

KEMPER DAVID W · CIK 0000924750 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,550

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: 0001530950-25-000066 · wk-form4_1738877743.xml · nonDerivative · entry 1

KEMPER DAVID W · CIK 0000924750 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,722

F1 · shares: Each restricted stock unit represents a contingent right to receive one share of Post Holdings, Inc. common stock. The restricted stock units were granted under the Post Holdings, Inc. 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: 0001530950-25-000069 · wk-form4_1738877910.xml · nonDerivative · entry 1

STIRITZ WILLIAM P · CIK 0001052058 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,111,927

F1 · shares: Each restricted stock unit represents a contingent right to receive one share of Post Holdings, Inc. common stock. The restricted stock units were granted under the Post Holdings, Inc. 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: 0001530950-25-000065 · wk-form4_1738877679.xml · nonDerivative · entry 1

ERB THOMAS C · CIK 0001861480 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,075

F1 · shares: Each restricted stock unit represents a contingent right to receive one share of Post Holdings, Inc. common stock. The restricted stock units were granted under the Post Holdings, Inc. 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: 0001530950-25-000063 · wk-form4_1738877566.xml · nonDerivative · entry 1

BURWELL DOROTHY M · CIK 0001816548 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,065

F1 · shares: Each restricted stock unit represents a contingent right to receive one share of Post Holdings, Inc. common stock. The restricted stock units were granted under the Post Holdings, Inc. 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: 0001530950-25-000064 · wk-form4_1738877625.xml · nonDerivative · entry 1

CURL GREGORY L · CIK 0001257186 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,676

F1 · shares: Each restricted stock unit represents a contingent right to receive one share of Post Holdings, Inc. common stock. The restricted stock units were granted under the Post Holdings, Inc. 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: 0001530950-25-000068 · wk-form4_1738877849.xml · nonDerivative · entry 1

SKARIE DAVID P · CIK 0001184295 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,391

F1 · shares: Each restricted stock unit represents a contingent right to receive one share of Post Holdings, Inc. common stock. The restricted stock units were granted under the Post Holdings, Inc. 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: 0001530950-25-000067 · wk-form4_1738877800.xml · nonDerivative · entry 1

JOHNSON JENNIFER KUPERMAN · CIK 0001790648 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,075

F1 · shares: Each restricted stock unit represents a contingent right to receive one share of Post Holdings, Inc. common stock. The restricted stock units were granted under the Post Holdings, Inc. 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: 0001530950-25-000050 · wk-form4_1738707274.xml · derivative · entry 1

KEMPER DAVID W · CIK 0000924750 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,159.686

Underlying: Common Stock · 125.593 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: 0001530950-25-000053 · wk-form4_1738707590.xml · derivative · entry 1

STIRITZ WILLIAM P · CIK 0001052058 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 179,821.638

Underlying: Common Stock · 104.661 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: 0001530950-25-000049 · wk-form4_1738707177.xml · derivative · entry 1

ERB THOMAS C · CIK 0001861480 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,305.154

Underlying: Common Stock · 104.661 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: 0001530950-25-000047 · wk-form4_1738706830.xml · derivative · entry 1

BURWELL DOROTHY M · CIK 0001816548 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,818.495

Underlying: Common Stock · 104.661 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: 0001530950-25-000048 · wk-form4_1738706962.xml · derivative · entry 1

CURL GREGORY L · CIK 0001257186 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,005.681

Underlying: Common Stock · 104.661 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: 0001530950-25-000052 · wk-form4_1738707493.xml · derivative · entry 1

SKARIE DAVID P · CIK 0001184295 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,395.801

Underlying: Common Stock · 104.661 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: 0001530950-25-000051 · wk-form4_1738707394.xml · derivative · entry 1

JOHNSON JENNIFER KUPERMAN · CIK 0001790648 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,305.154

Underlying: Common Stock · 104.661 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: 0001530950-25-000039 · wk-form4_1738621242.xml · derivative · entry 1

HARSHMAN ELLEN F · CIK 0001718508 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,496.319

Underlying: Common Stock · 99.79 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: 0001530950-25-000040 · wk-form4_1738621324.xml · derivative · entry 1

GROTE ROBERT E · CIK 0001540005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,518.34

Underlying: Common Stock · 144.696 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: 0001530950-25-000022 · wk-form4_1736547384.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,741

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 967 restricted stock units in accordance with Rule 16b-3.

SEC source: 0001530950-25-000020 · wk-form4_1736287230.xml · derivative · entry 3

CURL GREGORY L · CIK 0001257186 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,414 shares

Expires 2025-02-03

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.

F2 · derivative.exercise_date: Stock appreciation rights were granted under the Post Holdings, Inc. 2012 Long-Term Incentive Plan on February 3, 2015 and became fully vested three-years from the date of grant.

SEC source: 0001530950-25-000020 · wk-form4_1736287230.xml · nonDerivative · entry 2

CURL GREGORY L · CIK 0001257186 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,076

F1 · shares: Surrender of shares in payment of exercise price in accordance with Rule 16b-3. The remainder of the shares are being held by the Reporting Person.

SEC source: 0001530950-25-000020 · wk-form4_1736287230.xml · nonDerivative · entry 1

CURL GREGORY L · CIK 0001257186 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,207

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: 0001530950-25-000015 · wk-form4_1735939868.xml · derivative · entry 1

KEMPER DAVID W · CIK 0000924750 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,032.647

Underlying: Common Stock · 116.486 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: 0001530950-25-000018 · wk-form4_1735940060.xml · derivative · entry 1

STIRITZ WILLIAM P · CIK 0001052058 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 179,702.576

Underlying: Common Stock · 97.072 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: 0001530950-25-000012 · wk-form4_1735939687.xml · derivative · entry 1

ERB THOMAS C · CIK 0001861480 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,200.076

Underlying: Common Stock · 97.072 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: 0001530950-25-000010 · wk-form4_1735939471.xml · derivative · entry 1

BURWELL DOROTHY M · CIK 0001816548 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,713.296

Underlying: Common Stock · 97.072 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: 0001530950-25-000014 · wk-form4_1735939818.xml · derivative · entry 1

HARSHMAN ELLEN F · CIK 0001718508 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,395.811

Underlying: Common Stock · 97.072 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: 0001530950-25-000011 · wk-form4_1735939628.xml · derivative · entry 1

CURL GREGORY L · CIK 0001257186 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,900.547

Underlying: Common Stock · 97.072 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: 0001530950-25-000017 · wk-form4_1735939980.xml · derivative · entry 1

SKARIE DAVID P · CIK 0001184295 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,288.632

Underlying: Common Stock · 97.072 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: 0001530950-25-000016 · wk-form4_1735939920.xml · derivative · entry 1

JOHNSON JENNIFER KUPERMAN · CIK 0001790648 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,200.076

Underlying: Common Stock · 97.072 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: 0001530950-25-000013 · wk-form4_1735939760.xml · derivative · entry 1

GROTE ROBERT E · CIK 0001540005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,371.171

Underlying: Common Stock · 140.754 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: 0001530950-24-000441 · wk-form4_1733523372.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,220

SEC source: 0001530950-24-000451 · wk-form4_1733782312.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,432

SEC source: 0001530950-24-000435 · wk-form4_1733265366.xml · nonDerivative · entry 1

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,501

SEC source: 0001530950-24-000434 · wk-form4_1733265226.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,932

F3 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 811 RSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000434 · wk-form4_1733265226.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,291

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 4,636 RSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000434 · wk-form4_1733265226.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,338

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 608 restricted stock units (RSUs) in accordance with Rule 16b-3.

SEC source: 0001530950-24-000433 · wk-form4_1733265104.xml · nonDerivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,220

F4 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 557 PRSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000433 · wk-form4_1733265104.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,466

F3 · shares: Acquisition of shares of the Company's common stock or the contingent right to receive shares of the Company's common stock in the future for certain earned PRSUs under a shareholder approved plan 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, 2023 through September 30, 2024.

SEC source: 0001530950-24-000433 · wk-form4_1733265104.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,351

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 489 PRSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000433 · wk-form4_1733265104.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,567

F1 · shares: Acquisition of shares of Post Holdings, Inc.'s (the "Company") common stock pursuant to Rule 16b-3 upon payout of earned performance share award (PRSUs) under a shareholder approved equity plan based on the Company's level of achievement of certain financial targets for the performance period of October 1, 2022 through September 30, 2023.

SEC source: 0001530950-24-000410 · wk-form4_1733177643.xml · nonDerivative · entry 6

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Indirect · By Spouse

Disclosed balance after: 105,740

SEC source: 0001530950-24-000410 · wk-form4_1733177643.xml · nonDerivative · entry 5

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,048

SEC source: 0001530950-24-000429 · wk-form4_1733264001.xml · derivative · entry 1

KEMPER DAVID W · CIK 0000924750 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,915.567

Underlying: Common Stock · 110.666 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: 0001530950-24-000432 · wk-form4_1733264319.xml · derivative · entry 1

STIRITZ WILLIAM P · CIK 0001052058 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 179,599.553

Underlying: Common Stock · 92.221 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.