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

Rhea-AI Filing Summary

Post Holdings, Inc. (POST) disclosed that a company officer surrendered shares of common stock to cover tax withholding triggered by vesting of restricted stock units. On 11/14/2025, the officer surrendered 2,938 shares at $106.34 per share, leaving 61,333 shares beneficially owned afterward. On 11/15/2025, the officer surrendered an additional 2,470 shares at $106.70 per share, reducing beneficial ownership to 58,863 shares. The filing notes these were share surrenders in payment of tax withholding related to the vesting of 6,441 and 5,415 restricted stock units, respectively, under Rule 16b-3.

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
Estimated average burden
hours per response:			0.5

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^*

CATOGGIO NICOLAS

(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)
	PRES & CEO, PCB

3. Date of Earliest Transaction (Month/Day/Year)
11/14/2025

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	11/14/2025		F		2,938(1)	D	$106.34	61,333	D
Common Stock	11/15/2025		F		2,470(2)	D	$106.7	58,863	D

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. 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.

2. 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.

Remarks:

	/s/ Diedre J. Gray, Attorney-in-Fact	11/18/2025
	** 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 insider transaction did Post Holdings (POST) report in this Form 4?

Post Holdings reported that a company officer surrendered Post Holdings common stock to cover tax withholding obligations arising from the vesting of restricted stock units.

How many Post Holdings (POST) shares were surrendered for taxes on 11/14/2025?

On 11/14/2025, the officer surrendered 2,938 shares of Post Holdings common stock at a price of $106.34 per share to satisfy tax withholding.

How many Post Holdings (POST) shares were surrendered for taxes on 11/15/2025?

On 11/15/2025, the officer surrendered 2,470 shares of Post Holdings common stock at a price of $106.70 per share to satisfy tax withholding.

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

After the 11/15/2025 transaction, the officer beneficially owned 58,863 shares of Post Holdings common stock directly.

What RSU vesting events triggered the Post Holdings (POST) share surrenders?

The share surrenders were in payment of tax withholding due to the vesting of 6,441 restricted stock units on 11/14/2025 and 5,415 restricted stock units on 11/15/2025, as explained in the filing.

What is the reporting person’s role at Post Holdings (POST)?

The reporting person is an officer of Post Holdings, serving as President & CEO, PCB, as indicated in the filing.