STIRITZ WILLIAM P
SEC insider (Form 3/4/5 filer). CIK 0001052058. Insider at Post Holdings, Inc. (POST). 28 reported Form 4/5 transactions since Sep 2024; latest on Sep 2, 2026. Located in ST. LOUIS, MO.
Companies STIRITZ WILLIAM P has filed insider reports for
- Post Holdings, Inc. (POST)
STIRITZ WILLIAM P
CIK: 0001052058
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 (28 total)
- Sep 2, 2026POST
Post Holdings, Inc.
SaleIndirect228 shares at avg. $85.01$19K - Sep 2, 2026POST
Post Holdings, Inc.
SaleIndirect277.7K shares at avg. $84.23$23.4M - Sep 1, 2026POST
Post Holdings, Inc.
SaleIndirect100K shares at avg. $83.54$8.4M - Sep 1, 2026POST
Post Holdings, Inc.
SaleIndirect6.2K shares at avg. $84.63$525K - Dec 18, 2025POST
Post Holdings, Inc.
ExerciseDirect170K shares- - Dec 18, 2025POST
Post Holdings, Inc.
DispositionDirect170K shares at avg. $101.81$17.3M - Dec 17, 2025POST
Post Holdings, Inc.
DispositionDirect10.7K shares at avg. $101.19$1.1M - Dec 17, 2025POST
Post Holdings, Inc.
ExerciseDirect10.7K shares- - Dec 16, 2025POST
Post Holdings, Inc.
AwardDirectPost Holdings, Inc. Stock Equivalents
58 shares at avg. $98.93- - Nov 28, 2025POST
Post Holdings, Inc.
AwardDirectPost Holdings, Inc. Stock Equivalents
107 shares at avg. $104.03-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 2, 2026 | POST Post Holdings, Inc. | Sale | 228 | $85.01 | $19,382 | Indirect |
| Sep 2, 2026 | POST Post Holdings, Inc. | Sale | 277,707 | $84.23 | $23,391,261 | Indirect |
| Sep 1, 2026 | POST Post Holdings, Inc. | Sale | 99,990 | $83.54 | $8,353,165 | Indirect |
| Sep 1, 2026 | POST Post Holdings, Inc. | Sale | 6,207 | $84.63 | $525,298 | Indirect |
| Dec 18, 2025 | POST Post Holdings, Inc. | Exercise | 170,001 | - | - | Direct |
| Dec 18, 2025 | POST Post Holdings, Inc. | Disposition | 170,001 | $101.81 | $17,307,781 | Direct |
| Dec 17, 2025 | POST Post Holdings, Inc. | Disposition | 10,703 | $101.19 | $1,083,059 | Direct |
| Dec 17, 2025 | POST Post Holdings, Inc. | Exercise | 10,703 | - | - | Direct |
| Dec 16, 2025 | POST Post Holdings, Inc. | Award Post Holdings, Inc. Stock Equivalents | 58 | $98.93 | - | Direct |
| Nov 28, 2025 | POST Post Holdings, Inc. | Award Post Holdings, Inc. Stock Equivalents | 107 | $104.03 | - | Direct |
1-10 of 28 transactions