POST

SEC source: 0001759632-25-000005 · wk-form4_1763503724.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,415

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 677 RSUs in accordance with Rule 16b-3.

SEC source: 0001557413-25-000010 · wk-form4_1763503533.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,633

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 6,007 RSUs in accordance with Rule 16b-3.

SEC source: 0001882375-25-000009 · wk-form4_1763503379.xml · nonDerivative · entry 2

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,863

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 5,415 RSUs in accordance with Rule 16b-3.

SEC source: 0001343352-25-000010 · wk-form4_1763504104.xml · nonDerivative · entry 1

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,542

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 6,401 restricted stock units ("RSUs") in accordance with Rule 16b-3.

SEC source: 0001730096-25-000007 · wk-form4_1763504003.xml · nonDerivative · entry 1

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,352

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: 0001540021-25-000009 · wk-form4_1763503921.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 927,597

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: 0001954094-25-000007 · wk-form4_1763503812.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,015

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 2,834 restricted stock units ("RSUs") in accordance with Rule 16b-3.

SEC source: 0001759632-25-000005 · wk-form4_1763503724.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,714

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 1,685 restricted stock units ("RSUs") in accordance with Rule 16b-3.

SEC source: 0001557413-25-000010 · wk-form4_1763503533.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,280

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 6,659 restricted stock units ("RSUs") in accordance with Rule 16b-3.

SEC source: 0001882375-25-000009 · wk-form4_1763503379.xml · nonDerivative · entry 1

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,333

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 6,441 restricted stock units ("RSUs") in accordance with Rule 16b-3.

SEC source: 0001343352-25-000008 · wk-form4_1763156437.xml · derivative · entry 9

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,731

Underlying: Common Stock · 4,865 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.

F3 · 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. Amended and Restated 2021 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3.

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

SEC source: 0001343352-25-000008 · wk-form4_1763156437.xml · derivative · entry 8

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,538 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.

F3 · 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. Amended and Restated 2021 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3.

F4 · derivative.exercise_date: The RSUs vested on the first anniversary of the date of grant without any action on the part of the participant.

F4 · derivative.expiration_date: The RSUs vested on the first anniversary of the date of grant without any action on the part of the participant.

SEC source: 0001343352-25-000008 · wk-form4_1763156437.xml · nonDerivative · entry 4

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,362

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 4,865 RSUs in accordance with Rule 16b-3.

SEC source: 0001343352-25-000008 · wk-form4_1763156437.xml · nonDerivative · entry 3

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,506

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: 0001343352-25-000008 · wk-form4_1763156437.xml · nonDerivative · entry 2

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,641

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 9,538 restricted stock units ("RSUs") in accordance with Rule 16b-3.

SEC source: 0001343352-25-000008 · wk-form4_1763156437.xml · nonDerivative · entry 1

Zadoks Jeff A · CIK 0001343352 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,843

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: 0001730096-25-000005 · wk-form4_1763156369.xml · derivative · entry 7

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,518

Underlying: Common Stock · 4,759 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.

F3 · 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. Amended and Restated 2021 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3.

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

SEC source: 0001730096-25-000005 · wk-form4_1763156369.xml · derivative · entry 6

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,097 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.

F3 · 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. Amended and Restated 2021 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3.

F4 · derivative.exercise_date: The RSUs vested on the first anniversary of the date of grant without any action on the part of the participant.

F4 · derivative.expiration_date: The RSUs vested on the first anniversary of the date of grant without any action on the part of the participant.

SEC source: 0001730096-25-000005 · wk-form4_1763156369.xml · nonDerivative · entry 4

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 183,109

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 4,759 RSUs in accordance with Rule 16b-3.

SEC source: 0001730096-25-000005 · wk-form4_1763156369.xml · nonDerivative · entry 3

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 185,280

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: 0001730096-25-000005 · wk-form4_1763156369.xml · nonDerivative · entry 2

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,521

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 3,097 restricted stock units ("RSUs") in accordance with Rule 16b-3.

SEC source: 0001730096-25-000005 · wk-form4_1763156369.xml · nonDerivative · entry 1

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 181,934

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: 0001540021-25-000007 · wk-form4_1763156312.xml · derivative · entry 9

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,165

Underlying: Common Stock · 14,582 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.

F3 · 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. Amended and Restated 2021 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3.

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

SEC source: 0001540021-25-000007 · wk-form4_1763156312.xml · derivative · entry 8

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 23,227 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.

F3 · 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. Amended and Restated 2021 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3.

F4 · derivative.exercise_date: The RSUs vested on the first anniversary of the date of grant without any action on the part of the participant.

F4 · derivative.expiration_date: The RSUs vested on the first anniversary of the date of grant without any action on the part of the participant.

SEC source: 0001540021-25-000007 · wk-form4_1763156312.xml · nonDerivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 935,834

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 14,582 RSUs in accordance with Rule 16b-3.

SEC source: 0001540021-25-000007 · wk-form4_1763156312.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 942,258

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: 0001540021-25-000007 · wk-form4_1763156312.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 927,676

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 23,227 restricted stock units ("RSUs") in accordance with Rule 16b-3.

SEC source: 0001540021-25-000007 · wk-form4_1763156312.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 937,908

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: 0001954094-25-000005 · wk-form4_1763156240.xml · derivative · entry 6

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,833

Underlying: Common Stock · 3,916 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.

F3 · 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. Amended and Restated 2021 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3.

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

SEC source: 0001954094-25-000005 · wk-form4_1763156240.xml · derivative · entry 5

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,008 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.

F3 · 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. Amended and Restated 2021 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3.

F4 · derivative.exercise_date: The RSUs vested on the first anniversary of the date of grant without any action on the part of the participant.

F4 · derivative.expiration_date: The RSUs vested on the first anniversary of the date of grant without any action on the part of the participant.

SEC source: 0001954094-25-000005 · wk-form4_1763156240.xml · nonDerivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,264

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 3,916 RSUs in accordance with Rule 16b-3.

SEC source: 0001954094-25-000005 · wk-form4_1763156240.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,989

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: 0001954094-25-000005 · wk-form4_1763156240.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,073

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 6,008 restricted stock units ("RSUs") in accordance with Rule 16b-3.

SEC source: 0001954094-25-000005 · wk-form4_1763156240.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,720

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: 0001759632-25-000003 · wk-form4_1763156195.xml · derivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,561

Underlying: Common Stock · 1,280 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.

F2 · 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. Amended and Restated 2021 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3.

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

SEC source: 0001759632-25-000003 · wk-form4_1763156195.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,457

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 1,280 restricted stock units ("RSUs") in accordance with Rule 16b-3.

SEC source: 0001759632-25-000003 · wk-form4_1763156195.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,021

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: 0001557413-25-000008 · wk-form4_1763156153.xml · derivative · entry 8

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,846

Underlying: Common Stock · 5,422 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.

F3 · 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. Amended and Restated 2021 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3.

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

SEC source: 0001557413-25-000008 · wk-form4_1763156153.xml · derivative · entry 7

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 8,300 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.

F3 · 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. Amended and Restated 2021 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3.

F4 · derivative.exercise_date: The RSUs vested on the first anniversary of the date of grant without any action on the part of the participant.

F4 · derivative.expiration_date: The RSUs vested on the first anniversary of the date of grant without any action on the part of the participant.

SEC source: 0001557413-25-000008 · wk-form4_1763156153.xml · nonDerivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,214

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 5,422 RSUs in accordance with Rule 16b-3.

SEC source: 0001557413-25-000008 · wk-form4_1763156153.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,603

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: 0001557413-25-000008 · wk-form4_1763156153.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,181

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 8,300 restricted stock units ("RSUs") in accordance with Rule 16b-3.

SEC source: 0001557413-25-000008 · wk-form4_1763156153.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,838

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: 0001882375-25-000007 · wk-form4_1763156097.xml · derivative · entry 6

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,564

Underlying: Common Stock · 5,281 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.

F3 · 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. Amended and Restated 2021 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3.

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

SEC source: 0001882375-25-000007 · wk-form4_1763156097.xml · derivative · entry 5

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,326 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.

F3 · 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. Amended and Restated 2021 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3.

F4 · derivative.exercise_date: The RSUs vested on the first anniversary of the date of grant without any action on the part of the participant.

F4 · derivative.expiration_date: The RSUs vested on the first anniversary of the date of grant without any action on the part of the participant.

SEC source: 0001882375-25-000007 · wk-form4_1763156097.xml · nonDerivative · entry 4

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,271

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 5,281 RSUs in accordance with Rule 16b-3.

SEC source: 0001882375-25-000007 · wk-form4_1763156097.xml · nonDerivative · entry 3

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,680

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: 0001882375-25-000007 · wk-form4_1763156097.xml · nonDerivative · entry 2

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,399

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 3,326 restricted stock units ("RSUs") in accordance with Rule 16b-3.

SEC source: 0001882375-25-000007 · wk-form4_1763156097.xml · nonDerivative · entry 1

CATOGGIO NICOLAS · CIK 0001882375 · PRES & CEO, PCB

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,916

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: 0001530950-25-000252 · wk-form4_1762294389.xml · derivative · entry 1

KEMPER DAVID W · CIK 0000924750 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,539.03

Underlying: Common Stock · 165.706 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.