MAINER MATTHEW J
SEC insider (Form 3/4/5 filer). CIK 0001954094. EVP, CFO & TREASURER at Post Holdings, Inc. (POST). 27 reported Form 4/5 transactions since Sep 2024; latest on Oct 22, 2026. Located in ST. LOUIS, MO.
Companies MAINER MATTHEW J has filed insider reports for
- Post Holdings, Inc. (POST): Officer, EVP, CFO & TREASURER
MAINER MATTHEW J
CIK: 0001954094
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Post Holdings, Inc.
Discretionary Trading P&L
Holdings
Transaction History (27 total)
- Oct 22, 2026POST
Post Holdings, Inc.
Tax PaymentDirect7.9K shares at avg. $78.06$620K - Oct 22, 2026POST
Post Holdings, Inc.
AwardDirect18K shares- - Dec 4, 2025POST
Post Holdings, Inc.
GiftDirect600 shares- - Dec 1, 2025POST
Post Holdings, Inc.
Tax PaymentDirect269 shares at avg. $104.03$28K - Nov 18, 2025POST
Post Holdings, Inc.
AwardDirect17.3K shares- - Nov 18, 2025POST
Post Holdings, Inc.
AwardDirect8.1K shares- - Nov 15, 2025POST
Post Holdings, Inc.
Tax PaymentDirect937 shares at avg. $106.70$100K - Nov 14, 2025POST
Post Holdings, Inc.
Tax PaymentDirect1.2K shares at avg. $106.34$133K - Nov 12, 2025POST
Post Holdings, Inc.
Tax PaymentDirect2.6K shares at avg. $106.02$281K - Nov 12, 2025POST
Post Holdings, Inc.
ExerciseDirect6K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Oct 22, 2026 | POST Post Holdings, Inc. | Tax Payment | 7,940 | $78.06 | $619,796 | Direct |
| Oct 22, 2026 | POST Post Holdings, Inc. | Award | 18,024 | - | $0 | Direct |
| Dec 4, 2025 | POST Post Holdings, Inc. | Gift | 600 | - | - | Direct |
| Dec 1, 2025 | POST Post Holdings, Inc. | Tax Payment | 269 | $104.03 | $27,984 | Direct |
| Nov 18, 2025 | POST Post Holdings, Inc. | Award | 17,338 | - | - | Direct |
| Nov 18, 2025 | POST Post Holdings, Inc. | Award | 8,123 | - | - | Direct |
| Nov 15, 2025 | POST Post Holdings, Inc. | Tax Payment | 937 | $106.70 | $99,978 | Direct |
| Nov 14, 2025 | POST Post Holdings, Inc. | Tax Payment | 1,249 | $106.34 | $132,819 | Direct |
| Nov 12, 2025 | POST Post Holdings, Inc. | Tax Payment | 2,647 | $106.02 | $280,635 | Direct |
| Nov 12, 2025 | POST Post Holdings, Inc. | Exercise | 6,008 | - | - | Direct |
1-10 of 27 transactions