Jeff A. Zadoks - 22 Oct 2026 Form 4 Insider Report for Post Holdings, Inc. (POST)

Reporting relationship: Director
Issuer ticker: POST
Reported as of: 22 Oct 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 26 Oct 2026, 16:46:10 UTC
Prior SEC filing: 02 Oct 2026
Next SEC filing: 03 Nov 2026
Source filing: View source filing
Reporting owner signature: /s/ Diedre J. Gray, Attorney-in-Fact

Filing notes and source

Key filing fact

Jeff A. Zadoks filed Form 4 for Post Holdings, Inc. (POST) on 26 Oct 2026.

Key facts

This page summarizes Jeff A. Zadoks's Form 4 filing for Post Holdings, Inc. (POST).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 26 Oct 2026, 16:46.

Change

Previous filing in this sequence was filed on 02 Oct 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001343352 Primary reporting owner

Zadoks Jeff A

Relationship: Director
Address: C/O POST HOLDINGS, INC., 2503 S. HANLEY ROAD, ST. LOUIS
Signature: /s/ Diedre J. Gray, Attorney-in-Fact
Signature date: 26 Oct 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

POST transaction

Common Stock

Award

Transaction value
Shares: +40,710
Change %: +2262%
Price: $0.000000^*
Shares after: 42,510
Date: 22 Oct 2026
Ownership: Direct
Footnotes: F1

POST transaction

Common Stock

Tax liability

Transaction value
Shares: -17,933
Change %: -42%
Price: $78.06^*
Shares after: 24,577
Date: 22 Oct 2026
Ownership: Direct
Footnotes: F2

POST holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 686
Date: 22 Oct 2026
Ownership: By Family Trust

POST holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 122,740
Date: 22 Oct 2026
Ownership: By SLAT (Reporting Person)

POST holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 74,360
Date: 22 Oct 2026
Ownership: By SLAT (Spouse)

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Acquisition of shares pursuant to Rule 16b-3 upon payout of earned performance share award (PRSUs) under a shareholder approved equity plan. The payout was based on the level of achievement of the performance goal of relative total shareholder return percentile rank for the performance period October 1, 2023 through September 30, 2026.

Footnote F2

Surrender of shares in payment of tax withholding due as a result of the vesting of 40,710 PRSUs in accordance with Rule 16b-3.