POST Form 4: COO reports RSU vesting and tax share surrenders

Rhea-AI Filing Summary

Post Holdings (POST): Form 4 insider activity — EVP & COO reported equity award vesting and related tax withholding on 11/12/2025. Restricted stock units converted to common stock in two tranches: 9,538 RSUs and 4,865 RSUs, each at $0 per share upon vesting.

To cover taxes, shares were surrendered at $106.02 per share in two entries tied to those vestings. Following the transactions, direct holdings were reported as 54,362 shares. Additional indirect holdings were listed as 1,256 shares by a family trust, 68,145 by a SLAT, and 122,740 by spouse.

The filing reflects routine equity compensation events under the company’s long‑term incentive plan, with no open‑market purchases or sales disclosed in the excerpt.

Insights

Equity Compensation & Governance Analyst

Routine RSU vesting with tax withholding; neutral impact.

The executive reported RSU conversions to common stock (9,538 and 4,865 shares) at $0 upon vesting, which is standard for equity awards. The Form 4 shows tax withholding satisfied via share surrender at $106.02 per share, a common non-cash method.

These entries indicate no open‑market sales; they are administrative outcomes of vesting schedules under the incentive plan. Actual market impact depends on holder decisions beyond these events, and none are indicated here.

Holdings after the transactions were reported as 54,362 direct shares, with additional indirect positions through a family trust, a SLAT, and spouse. Subsequent filings may provide further detail on future vesting or exercises.

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

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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^*

Zadoks Jeff 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)
	EVP & COO

3. Date of Earliest Transaction (Month/Day/Year)
11/12/2025

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	11/12/2025		M		9,538	A	$0	55,843	D
Common Stock	11/12/2025		F		4,202(1)	D	$106.02	51,641	D
Common Stock	11/12/2025		M		4,865	A	$0	56,506	D
Common Stock	11/12/2025		F		2,144(2)	D	$106.02	54,362	D
Common Stock								1,256	I	By Family Trust
Common Stock								68,145	I	By SLAT
Common Stock								122,740	I	By Spouse

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
Restricted Stock Units	(3)	11/12/2025		M			9,538	(4)	(4)	Common Stock	9,538	$0	0	D
Restricted Stock Units	(3)	11/12/2025		M			4,865	(5)	(5)	Common Stock	4,865	$0	9,731	D

Explanation of Responses:

1. 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.

2. 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.

3. 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.

4. The RSUs vested on the first anniversary of the date of grant without any action on the part of the participant.

5. 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.

Remarks:

	/s/ Diedre J. Gray, Attorney-in-Fact	11/14/2025
	** 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).
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FAQ

What did Post Holdings (POST) report in this Form 4?

The EVP & COO reported RSU vesting into common stock and share surrenders to cover taxes on 11/12/2025.

How many RSUs vested for the Post Holdings executive?

Two tranches vested: 9,538 RSUs and 4,865 RSUs, each converting into the same number of common shares at $0 per share.

Were there any open‑market sales or purchases disclosed?

No. The filing shows share surrenders for tax withholding at $106.02 per share, not open‑market trades.

What are the executive’s reported direct holdings after these transactions?

Direct holdings were reported as 54,362 common shares.

What indirect holdings were reported?

Indirect holdings were listed as 1,256 shares by a family trust, 68,145 by a SLAT, and 122,740 by spouse.

What triggered the tax share surrender entries at $106.02?

Shares were surrendered to satisfy tax withholding due to the RSU vesting, as permitted under Rule 16b‑3.