POST

SEC source: 0001530950-24-000376 · wk-form4_1731966247.xml · nonDerivative · entry 3

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,986

F3 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 5,414 RSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000382 · wk-form4_1731967674.xml · nonDerivative · entry 3

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,663

F3 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 6,401 RSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000382 · wk-form4_1731967674.xml · nonDerivative · entry 2

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,490

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 9,315 RSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000382 · wk-form4_1731967674.xml · nonDerivative · entry 1

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,603

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 4,120 restricted stock units (RSUs) in accordance with Rule 16b-3.

SEC source: 0001530950-24-000381 · wk-form4_1731967404.xml · nonDerivative · entry 2

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 154,630

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 10,835 RSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000381 · wk-form4_1731967404.xml · nonDerivative · entry 1

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 159,571

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 6,044 restricted stock units (RSUs) in accordance with Rule 16b-3.

SEC source: 0001530950-24-000380 · wk-form4_1731967195.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 562,626

F3 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 22,682 RSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000380 · wk-form4_1731967195.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 572,641

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 10,032 RSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000380 · wk-form4_1731967195.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 577,071

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 18,698 restricted stock units (RSUs) in accordance with Rule 16b-3.

SEC source: 0001530950-24-000379 · wk-form4_1731967005.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,170

F3 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 2,408 RSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000379 · wk-form4_1731967005.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,234

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 2,834 RSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000379 · wk-form4_1731967005.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,486

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 5,445 restricted stock units (RSUs) in accordance with Rule 16b-3.

SEC source: 0001530950-24-000378 · wk-form4_1731966824.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,129

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 1,684 restricted stock units (RSUs) in accordance with Rule 16b-3.

SEC source: 0001530950-24-000377 · wk-form4_1731966500.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 189,182

F3 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 3,461 RSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000377 · wk-form4_1731966500.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 190,711

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 7,825 RSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000377 · wk-form4_1731966500.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 194,166

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 6,658 restricted stock units (RSUs) in accordance with Rule 16b-3.

SEC source: 0001530950-24-000376 · wk-form4_1731966247.xml · nonDerivative · entry 2

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,455

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 12,214 RSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000376 · wk-form4_1731966247.xml · nonDerivative · entry 1

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 91,025

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 6,440 restricted stock units (RSUs) in accordance with Rule 16b-3.

SEC source: 0001530950-24-000362 · wk-form4_1731623819.xml · derivative · entry 2

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,538

Underlying: Common Stock · 9,538 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock or a cash payment or other consideration, in each case, based on the fair market value of Post's common stock on the applicable vesting date, in the discretion of the Corporate Governance and Compensation Committee (the "CGCC") of Post's Board of Directors (the "Board"), without any action on the part of the participant. The RSUs were granted by the CGCC on November 12, 2024 under the Amended and Restated Post Holdings, Inc. 2021 Long-Term Incentive Plan (the "A&R 2021 Plan"), subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024, in a transaction exempt under Rule 16b-3.

F2 · date: The RSUs were granted by the CGCC on November 12, 2024, subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024.

F4 · derivative.exercise_date: The RSUs vest on the first anniversary of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

F4 · derivative.expiration_date: The RSUs vest on the first anniversary of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

SEC source: 0001530950-24-000362 · wk-form4_1731623819.xml · derivative · entry 1

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,596

Underlying: Common Stock · 14,596 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock or a cash payment or other consideration, in each case, based on the fair market value of Post's common stock on the applicable vesting date, in the discretion of the Corporate Governance and Compensation Committee (the "CGCC") of Post's Board of Directors (the "Board"), without any action on the part of the participant. The RSUs were granted by the CGCC on November 12, 2024 under the Amended and Restated Post Holdings, Inc. 2021 Long-Term Incentive Plan (the "A&R 2021 Plan"), subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024, in a transaction exempt under Rule 16b-3.

F2 · date: The RSUs were granted by the CGCC on November 12, 2024, subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024.

F3 · derivative.exercise_date: One-third of the RSUs vest on each of the first, second and third anniversaries of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

F3 · derivative.expiration_date: One-third of the RSUs vest on each of the first, second and third anniversaries of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

SEC source: 0001530950-24-000361 · wk-form4_1731623730.xml · derivative · entry 2

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,097

Underlying: Common Stock · 3,097 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock or a cash payment or other consideration, in each case, based on the fair market value of Post's common stock on the applicable vesting date, in the discretion of the Corporate Governance and Compensation Committee (the "CGCC") of Post's Board of Directors (the "Board"), without any action on the part of the participant. The RSUs were granted by the CGCC on November 12, 2024 under the Amended and Restated Post Holdings, Inc. 2021 Long-Term Incentive Plan (the "A&R 2021 Plan"), subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024, in a transaction exempt under Rule 16b-3.

F2 · date: The RSUs were granted by the CGCC on November 12, 2024, subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024.

F4 · derivative.exercise_date: The RSUs vest on the first anniversary of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreements.

F4 · derivative.expiration_date: The RSUs vest on the first anniversary of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreements.

SEC source: 0001530950-24-000361 · wk-form4_1731623730.xml · derivative · entry 1

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,277

Underlying: Common Stock · 14,277 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock or a cash payment or other consideration, in each case, based on the fair market value of Post's common stock on the applicable vesting date, in the discretion of the Corporate Governance and Compensation Committee (the "CGCC") of Post's Board of Directors (the "Board"), without any action on the part of the participant. The RSUs were granted by the CGCC on November 12, 2024 under the Amended and Restated Post Holdings, Inc. 2021 Long-Term Incentive Plan (the "A&R 2021 Plan"), subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024, in a transaction exempt under Rule 16b-3.

F2 · date: The RSUs were granted by the CGCC on November 12, 2024, subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024.

F3 · derivative.exercise_date: One-third of the RSUs vest on each of the first, second and third anniversaries of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreements.

F3 · derivative.expiration_date: One-third of the RSUs vest on each of the first, second and third anniversaries of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreements.

SEC source: 0001530950-24-000360 · wk-form4_1731623646.xml · derivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,227

Underlying: Common Stock · 23,227 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock or a cash payment or other consideration, in each case, based on the fair market value of Post's common stock on the applicable vesting date, in the discretion of the Corporate Governance and Compensation Committee (the "CGCC") of Post's Board of Directors (the "Board"), without any action on the part of the participant. The RSUs were granted by the CGCC on November 12, 2024 under the Amended and Restated Post Holdings, Inc. 2021 Long-Term Incentive Plan (the "A&R 2021 Plan"), subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024, in a transaction exempt under Rule 16b-3.

F2 · date: The RSUs were granted by the CGCC on November 12, 2024, subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024.

F4 · derivative.exercise_date: The RSUs vest on the first anniversary of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

F4 · derivative.expiration_date: The RSUs vest on the first anniversary of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

SEC source: 0001530950-24-000360 · wk-form4_1731623646.xml · derivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,747

Underlying: Common Stock · 43,747 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock or a cash payment or other consideration, in each case, based on the fair market value of Post's common stock on the applicable vesting date, in the discretion of the Corporate Governance and Compensation Committee (the "CGCC") of Post's Board of Directors (the "Board"), without any action on the part of the participant. The RSUs were granted by the CGCC on November 12, 2024 under the Amended and Restated Post Holdings, Inc. 2021 Long-Term Incentive Plan (the "A&R 2021 Plan"), subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024, in a transaction exempt under Rule 16b-3.

F2 · date: The RSUs were granted by the CGCC on November 12, 2024, subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024.

F3 · derivative.exercise_date: One-third of the RSUs vest on each of the first, second and third anniversaries of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

F3 · derivative.expiration_date: One-third of the RSUs vest on each of the first, second and third anniversaries of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

SEC source: 0001530950-24-000359 · wk-form4_1731623555.xml · derivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,008

Underlying: Common Stock · 6,008 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock or a cash payment or other consideration, in each case, based on the fair market value of Post's common stock on the applicable vesting date, in the discretion of the Corporate Governance and Compensation Committee (the "CGCC") of Post's Board of Directors (the "Board"), without any action on the part of the participant. The RSUs were granted by the CGCC on November 12, 2024 under the Amended and Restated Post Holdings, Inc. 2021 Long-Term Incentive Plan (the "A&R 2021 Plan"), subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024, in a transaction exempt under Rule 16b-3.

F2 · date: The RSUs were granted by the CGCC on November 12, 2024, subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024.

F4 · derivative.exercise_date: The RSUs vest on the first anniversary of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

F4 · derivative.expiration_date: The RSUs vest on the first anniversary of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

SEC source: 0001530950-24-000359 · wk-form4_1731623555.xml · derivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,749

Underlying: Common Stock · 11,749 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock or a cash payment or other consideration, in each case, based on the fair market value of Post's common stock on the applicable vesting date, in the discretion of the Corporate Governance and Compensation Committee (the "CGCC") of Post's Board of Directors (the "Board"), without any action on the part of the participant. The RSUs were granted by the CGCC on November 12, 2024 under the Amended and Restated Post Holdings, Inc. 2021 Long-Term Incentive Plan (the "A&R 2021 Plan"), subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024, in a transaction exempt under Rule 16b-3.

F2 · date: The RSUs were granted by the CGCC on November 12, 2024, subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024.

F3 · derivative.exercise_date: One-third of the RSUs vest on each of the first, second and third anniversaries of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

F3 · derivative.expiration_date: One-third of the RSUs vest on each of the first, second and third anniversaries of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

SEC source: 0001530950-24-000357 · wk-form4_1731623193.xml · derivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,841

Underlying: Common Stock · 3,841 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock or a cash payment or other consideration, in each case, based on the fair market value of Post's common stock on the applicable vesting date, in the discretion of the Corporate Governance and Compensation Committee (the "CGCC") of Post's Board of Directors (the "Board"), without any action on the part of the participant. The RSUs were granted by the CGCC on November 12, 2024 under the Amended and Restated Post Holdings, Inc. 2021 Long-Term Incentive Plan (the "A&R 2021 Plan"), subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024, in a transaction exempt under Rule 16b-3.

F2 · date: The RSUs were granted by the CGCC on November 12, 2024, subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024.

F3 · derivative.exercise_date: One-third of the RSUs vest on each of the first, second and third anniversaries of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

F3 · derivative.expiration_date: One-third of the RSUs vest on each of the first, second and third anniversaries of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

SEC source: 0001530950-24-000356 · wk-form4_1731623089.xml · derivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,300

Underlying: Common Stock · 8,300 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock or a cash payment or other consideration, in each case, based on the fair market value of Post's common stock on the applicable vesting date, in the discretion of the Corporate Governance and Compensation Committee (the "CGCC") of Post's Board of Directors (the "Board"), without any action on the part of the participant. The RSUs were granted by the CGCC on November 12, 2024 under the Amended and Restated Post Holdings, Inc. 2021 Long-Term Incentive Plan (the "A&R 2021 Plan"), subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024, in a transaction exempt under Rule 16b-3.

F2 · date: The RSUs were granted by the CGCC on November 12, 2024, subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024.

F4 · derivative.exercise_date: The RSUs vest on the first anniversary of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

F4 · derivative.expiration_date: The RSUs vest on the first anniversary of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

SEC source: 0001530950-24-000356 · wk-form4_1731623089.xml · derivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,268

Underlying: Common Stock · 16,268 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock or a cash payment or other consideration, in each case, based on the fair market value of Post's common stock on the applicable vesting date, in the discretion of the Corporate Governance and Compensation Committee (the "CGCC") of Post's Board of Directors (the "Board"), without any action on the part of the participant. The RSUs were granted by the CGCC on November 12, 2024 under the Amended and Restated Post Holdings, Inc. 2021 Long-Term Incentive Plan (the "A&R 2021 Plan"), subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024, in a transaction exempt under Rule 16b-3.

F2 · date: The RSUs were granted by the CGCC on November 12, 2024, subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024.

F3 · derivative.exercise_date: One-third of the RSUs vest on each of the first, second and third anniversaries of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

F3 · derivative.expiration_date: One-third of the RSUs vest on each of the first, second and third anniversaries of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

SEC source: 0001530950-24-000355 · wk-form4_1731622899.xml · derivative · entry 4

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,326

Underlying: Common Stock · 3,326 shares

Expires not disclosed

F3 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock or a cash payment or other consideration, in each case, based on the fair market value of Post's common stock on the applicable vesting date, in the discretion of the Corporate Governance and Compensation Committee (the "CGCC") of Post's Board of Directors (the "Board"), without any action on the part of the participant. The RSUs were granted by the CGCC on November 12, 2024 under the Amended and Restated Post Holdings, Inc. 2021 Long-Term Incentive Plan (the "A&R 2021 Plan"), subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024, in a transaction exempt under Rule 16b-3.

F4 · date: The RSUs were granted by the CGCC on November 12, 2024, subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024.

F6 · derivative.exercise_date: The RSUs vest on the first anniversary of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

F6 · derivative.expiration_date: The RSUs vest on the first anniversary of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

SEC source: 0001530950-24-000355 · wk-form4_1731622899.xml · derivative · entry 3

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,845

Underlying: Common Stock · 15,845 shares

Expires not disclosed

F3 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock or a cash payment or other consideration, in each case, based on the fair market value of Post's common stock on the applicable vesting date, in the discretion of the Corporate Governance and Compensation Committee (the "CGCC") of Post's Board of Directors (the "Board"), without any action on the part of the participant. The RSUs were granted by the CGCC on November 12, 2024 under the Amended and Restated Post Holdings, Inc. 2021 Long-Term Incentive Plan (the "A&R 2021 Plan"), subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024, in a transaction exempt under Rule 16b-3.

F4 · date: The RSUs were granted by the CGCC on November 12, 2024, subject to the Board approving the A&R 2021 Plan, which occurred on November 13, 2024.

F5 · derivative.exercise_date: One-third of the RSUs vest on each of the first, second and third anniversaries of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

F5 · derivative.expiration_date: One-third of the RSUs vest on each of the first, second and third anniversaries of November 12, 2024 without any action on the part of the participant, subject to the terms of the applicable award agreement.

SEC source: 0001530950-24-000355 · wk-form4_1731622899.xml · nonDerivative · entry 2

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 93,962

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 12,168 PRSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000355 · wk-form4_1731622899.xml · nonDerivative · entry 1

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 99,511

F1 · shares: Acquisition of shares pursuant to Rule 16b-3 upon payout of earned performance share award ("PRSUs") under a shareholder approved equity plan. The payout was based on the level of achievement of certain financial targets for the performance period October 1, 2021 through September 30, 2024.

SEC source: 0001530950-24-000339 · wk-form4_1730756727.xml · derivative · entry 1

KEMPER DAVID W · CIK 0000924750 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,807.655

Underlying: Common Stock · 122.086 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: 0001530950-24-000342 · wk-form4_1730756955.xml · derivative · entry 1

STIRITZ WILLIAM P · CIK 0001052058 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 179,535.089

Underlying: Common Stock · 101.738 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: 0001530950-24-000336 · wk-form4_1730756505.xml · derivative · entry 1

ERB THOMAS C · CIK 0001861480 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,011.389

Underlying: Common Stock · 101.738 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: 0001530950-24-000334 · wk-form4_1730756244.xml · derivative · entry 1

BURWELL DOROTHY M · CIK 0001816548 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,524.792

Underlying: Common Stock · 101.738 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: 0001530950-24-000338 · wk-form4_1730756645.xml · derivative · entry 1

HARSHMAN ELLEN F · CIK 0001718508 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,207.634

Underlying: Common Stock · 101.738 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: 0001530950-24-000335 · wk-form4_1730756425.xml · derivative · entry 1

CURL GREGORY L · CIK 0001257186 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,711.944

Underlying: Common Stock · 101.738 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: 0001530950-24-000341 · wk-form4_1730756857.xml · derivative · entry 1

SKARIE DAVID P · CIK 0001184295 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,103.114

Underlying: Common Stock · 101.738 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: 0001530950-24-000340 · wk-form4_1730756794.xml · derivative · entry 1

JOHNSON JENNIFER KUPERMAN · CIK 0001790648 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,011.389

Underlying: Common Stock · 101.738 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: 0001530950-24-000337 · wk-form4_1730756581.xml · derivative · entry 1

GROTE ROBERT E · CIK 0001540005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,100.591

Underlying: Common Stock · 147.52 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: 0001530950-24-000324 · wk-form4_1729717765.xml · nonDerivative · entry 2

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,422

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 54,239 PRSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000324 · wk-form4_1729717765.xml · nonDerivative · entry 1

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 99,369

F1 · shares: Acquisition of shares pursuant to Rule 16b-3 upon payout of earned performance share award (PRSUs) under a shareholder approved equity plan. The payout was based on the level of achievement of the performance goal of relative total shareholder return percentile rank for the performance period October 1, 2021 through September 30, 2024.

SEC source: 0001530950-24-000323 · wk-form4_1729717524.xml · nonDerivative · entry 2

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 162,328

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 47,008 PRSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000323 · wk-form4_1729717524.xml · nonDerivative · entry 1

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 183,764

F1 · shares: Acquisition of shares pursuant to Rule 16b-3 upon payout of earned performance share award (PRSUs) under a shareholder approved equity plan. The payout was based on the level of achievement of the performance goal of relative total shareholder return percentile rank for the performance period October 1, 2021 through September 30, 2024.

SEC source: 0001530950-24-000322 · wk-form4_1729717302.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 585,327

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 171,759 PRSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000322 · wk-form4_1729717302.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 661,159

F1 · shares: Acquisition of shares pursuant to Rule 16b-3 upon payout of earned performance share award (PRSUs) under a shareholder approved equity plan. The payout was based on the level of achievement of the performance goal of relative total shareholder return percentile rank for the performance period October 1, 2021 through September 30, 2024.

SEC source: 0001530950-24-000321 · wk-form4_1729717109.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,890

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 6,326 PRSUs in accordance with Rule 16b-3.

SEC source: 0001530950-24-000321 · wk-form4_1729717109.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,683

F1 · shares: Acquisition of shares pursuant to Rule 16b-3 upon payout of earned performance share award (PRSUs) under a shareholder approved equity plan. The payout was based on the level of achievement of the performance goal of relative total shareholder return percentile rank for the performance period October 1, 2021 through September 30, 2024.