Diedre J. Gray - Nov 12, 2025 Form 4 Insider Report for Post Holdings, Inc. (POST)

Role
EVP, GC & CAO, SECY
Signature
/s/ Diedre J. Gray
Stock symbol
POST
Transactions as of
Nov 12, 2025
Transactions value $
-$640,997
Form type
4
Date filed
11/14/2025, 04:35 PM
Previous filing
Oct 24, 2025
Next filing
Nov 18, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
GRAY DIEDRE J EVP, GC & CAO, SECY C/O POST HOLDINGS, INC., 2503 S. HANLEY ROAD, ST. LOUIS /s/ Diedre J. Gray 2025-11-14 0001557413

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction POST Common Stock Options Exercise $0 +8.3K +18.23% $0.00 53.8K Nov 12, 2025 Direct
transaction POST Common Stock Tax liability -$388K -3.66K -6.79% $106.02 50.2K Nov 12, 2025 Direct F1
transaction POST Common Stock Options Exercise $0 +5.42K +10.8% $0.00 55.6K Nov 12, 2025 Direct
transaction POST Common Stock Tax liability -$253K -2.39K -4.3% $106.02 53.2K Nov 12, 2025 Direct F2
holding POST Common Stock 124K Nov 12, 2025 By Trust
holding POST Common Stock 45.8K Nov 12, 2025 By Spouse's Trust

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction POST Restricted Stock Units Options Exercise $0 -8.3K -100% $0.00 0 Nov 12, 2025 Common Stock 8.3K Direct F3, F4
transaction POST Restricted Stock Units Options Exercise $0 -5.42K -33.33% $0.00 10.8K Nov 12, 2025 Common Stock 5.42K Direct F3, F5
* 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 8,300 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 5,422 RSUs in accordance with Rule 16b-3.
F3 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.
F4 The RSUs vested on the first anniversary of the date of grant without any action on the part of the participant.
F5 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.