BRADLY A. HARPER - 18 Nov 2025 Form 4 Insider Report for Post Holdings, Inc. (POST)

Role: SVP, CHIEF ACCTING OFFICER
Signature: /s/ Diedre J. Gray, Attorney-in-Fact
Issuer symbol: POST
Transactions as of: 18 Nov 2025
Net transactions value: $0
Form type: 4
Filing time: 20 Nov 2025, 17:24:49 UTC
Previous filing: 18 Nov 2025
Next filing: 02 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
HARPER BRADLY A	SVP, CHIEF ACCTING OFFICER	C/O POST HOLDINGS, INC., 2503 S. HANLEY ROAD, ST. LOUIS	/s/ Diedre J. Gray, Attorney-in-Fact	20 Nov 2025	0001759632

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	POST	Common Stock	Award	$0	+3,983	+46%	$0.000000	12,641	18 Nov 2025	Direct	F1
transaction	POST	Common Stock	Award	$0	+904	+7.2%	$0.000000	13,545	18 Nov 2025	Direct	F2
holding	POST	Common Stock						1,440	18 Nov 2025	By 401(k) Plan

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock. The RSUs were granted under the Post Holdings, Inc. Amended and Restated 2021 Long-Term Incentive Plan (the "A&R 2021 LTIP") in a transaction exempt under Rule 16b-3 and vest in equal annual increments over three years, subject to the terms of the award agreement.
F2	Acquisition of the contingent right to receive shares of Post common stock in the future for certain earned performance-based restricted stock units awarded under the A&R 2021 LTIP pursuant to Rule 16b-3 as a result of Company's level of achievement of certain financial targets for the performance period of October 1, 2024 through September 30, 2025.