[Form 4] Post Holdings, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Post Holdings, Inc. (POST) executive SVP and Chief Accounting Officer reported routine equity compensation transactions. On 11/18/2025, the officer acquired 3,983 restricted stock units and 904 performance-based restricted stock units of Post common stock at a stated price of $0 per unit under the company’s Amended and Restated 2021 Long-Term Incentive Plan. After these awards, the officer directly beneficially owns 13,545 shares of common stock and holds an additional 1,439.95 shares indirectly through a 401(k) plan. The RSUs generally vest in equal annual installments over three years, with the performance-based portion tied to achievement of specified financial targets for the period from October 1, 2024 through September 30, 2025.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

HARPER BRADLY A

(Last) (First) (Middle)

C/O POST HOLDINGS, INC.

2503 S. HANLEY ROAD

(Street)

ST. LOUIS MO 63144

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Post Holdings, Inc. [ POST ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, CHIEF ACCTING OFFICER

3. Date of Earliest Transaction (Month/Day/Year)
11/18/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/18/2025		A		3,983(1)	A	$0	12,641	D
Common Stock	11/18/2025		A		904(2)	A	$0	13,545	D
Common Stock								1,439.95	I	By 401(k) Plan

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

2. 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.

Remarks:

	/s/ Diedre J. Gray, Attorney-in-Fact	11/20/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did the POST executive report on this Form 4?

The SVP and Chief Accounting Officer of Post Holdings, Inc. (POST) reported the acquisition of restricted stock units and performance-based restricted stock units of Post common stock as part of equity compensation.

How many Post Holdings (POST) RSUs were granted on 11/18/2025?

On 11/18/2025, the officer acquired 3,983 restricted stock units and 904 performance-based restricted stock units of Post common stock.

What is the vesting schedule for the new Post (POST) restricted stock units?

The restricted stock units were granted under the Amended and Restated 2021 Long-Term Incentive Plan and vest in equal annual increments over three years, subject to the terms of the award agreement.

What performance period applies to the POST performance-based RSUs?

The performance-based restricted stock units relate to the company’s achievement of certain financial targets for the period from October 1, 2024 through September 30, 2025.

How many Post Holdings (POST) shares does the reporting person own after these transactions?

Following the transactions, the officer beneficially owns 13,545 Post common shares directly and 1,439.95 shares indirectly through a 401(k) plan.

Were these POST equity awards made under a company incentive plan?

Yes. The awards were made under the Post Holdings, Inc. Amended and Restated 2021 Long-Term Incentive Plan and are reported as transactions exempt under Rule 16b-3.