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

Rhea-AI Filing Summary

Director Thomas C. Erb reported on 09/30/2025 the acquisition of 103.376 Post Holdings, Inc. stock equivalents under the companys Deferred Compensation Plan for Non-Management Directors. The filing shows these equivalents were credited as compensation for his director retainer and carry no fixed exercise or expiration dates; they are distributable in cash on a one-for-one basis upon separation from the board. Following the reported transaction, Mr. Erb is recorded as beneficially owning 6,100.362 shares of Post Holdings common stock. The Form 4 was signed by an attorney-in-fact on 10/02/2025.

Positive

• 103.376 stock equivalents credited under the Deferred Compensation Plan
• Stock equivalents convert to cash on a one-for-one basis upon board separation
• Beneficial ownership updated to 6,100.362 shares

Negative

• None.

Insights

Corporate Governance Analyst

Director deferred retainer into 103.376 stock equivalents; holdings now 6,100.362 shares.

This Form 4 reports a routine compensation deferral where a non-management director converted a retainer into 103.376 stock equivalents under the issuers deferred compensation plan. The equivalents have no fixed exercisable or expiration dates and are payable in cash on separation, so they represent deferred cash compensation rather than immediate share issuance.

The report is administrative in nature and does not disclose purchases or sales of market-traded shares; it updates beneficial ownership to 6,100.362 shares, which is the figure investors can use to track insider holdings.

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).

1. Name and Address of Reporting Person^*

ERB THOMAS C

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/30/2025

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

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
Post Holdings, Inc. Stock Equivalents	(1)	09/30/2025		A		103.376		(2)	(2)	Common Stock	103.376	$107.48	6,100.362	D

Explanation of Responses:

1. 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.

2. The stock equivalents have no fixed exercisable or expiration dates.

Remarks:

	/s/ Diedre J. Gray, Attorney-in-Fact	10/02/2025
	** 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 Thomas C. Erb report on Form 4 for POST?

He reported acquisition of 103.376 Post Holdings stock equivalents credited on 09/30/2025 under the non-management directors' deferred compensation plan.

Do the reported stock equivalents have exercise or expiration dates?

No. The filing states the stock equivalents have no fixed exercisable or expiration dates.

How will the stock equivalents be paid out?

The stock equivalents are distributable one-for-one in cash upon separation from the Board of Directors.

What is Thomas C. Erb's beneficial ownership after the transaction?

The Form 4 reports beneficial ownership of 6,100.362 shares of Post Holdings common stock following the transaction.

When was the Form 4 signed and filed?

The signature by attorney-in-fact is dated 10/02/2025 and the transaction date reported is 09/30/2025.