WILLIAM P STIRITZ
CIK 1052058 · Chairman and CEO · last filed 2025-12-19
WILLIAM P STIRITZ is a Chairman and CEO who has filed 197 SEC Form 4 insider transactions across 6 companies since 2007. The most recent filing, for POST, was dated Dec 19, 2025. Across all open-market trades the lifetime net is +$83.4M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $498.1M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$498.08M
6
197
$83.40M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| POST | Director | 4,729,502 | $93.14 | $440.51M | $24.32M | 50 | 2025-12-19 |
| Post Holdings, Inc. (POSTw) Delisted | Director | 4,272,286 | — | — | $67.70M | 57 | 2022-03-01 |
| RALCORP HOLDINGS INC /MO (RAH) Delisted | Director | 742,010 | — | — | -$23.44M | 73 | 2012-02-02 |
| MTN | Director | 11,338 | $133.31 | $1.51M | $0 | 6 | 2009-09-24 |
| RALCORP HOLDINGS INC /MO (RAHw) Delisted | Director | — | — | — | $0 | 1 | 2008-08-06 |
| ENR | Director | 2,768,307 | $20.25 | $56.06M | $14.83M | 8 | 2008-04-23 |
Recent Filings
197 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-12-19 | POST | Mixed | — | -$18.39M | EDGAR |
| 2025-12-18 | POST | Grant (A) | — | $0 | EDGAR |
| 2025-12-02 | POST | Grant (A) | — | $0 | EDGAR |
| 2025-11-04 | POST | Grant (A) | — | $0 | EDGAR |
| 2025-10-02 | POST | Grant (A) | — | $0 | EDGAR |
| 2025-09-03 | POST | Grant (A) | — | $0 | EDGAR |
| 2025-08-21 | POST | Buy (P) | +36,000 | $3.94M | EDGAR |
| 2025-08-04 | POST | Grant (A) | — | $0 | EDGAR |
| 2025-07-02 | POST | Grant (A) | — | $0 | EDGAR |
| 2025-06-09 | POST | Buy (P) | +186,740 | $20.38M | EDGAR |