Matthew J. Mainer - Nov 14, 2025 Form 4 Insider Report for Post Holdings, Inc. (POST)

Role
EVP, CFO & TREASURER
Signature
/s/ Diedre J. Gray, Attorney-in-Fact
Stock symbol
POST
Transactions as of
Nov 14, 2025
Transactions value $
-$232,797
Form type
4
Date filed
11/18/2025, 05:10 PM
Previous filing
Nov 14, 2025
Next filing
Nov 20, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
MAINER MATTHEW J EVP, CFO & TREASURER C/O POST HOLDINGS, INC., 2503 S. HANLEY ROAD, ST. LOUIS /s/ Diedre J. Gray, Attorney-in-Fact 2025-11-18 0001954094

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction POST Common Stock Tax liability -$133K -1.25K -2.39% $106.34 51K Nov 14, 2025 Direct F1
transaction POST Common Stock Tax liability -$100K -937 -1.84% $106.70 50.1K Nov 15, 2025 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Surrender of shares in payment of tax withholding due as a result of the vesting of 2,834 restricted stock units ("RSUs") in accordance with Rule 16b-3.
F2 Surrender of shares in payment of tax withholding due as a result of the vesting of 2,127 RSUs in accordance with Rule 16b-3.