16 insiders reported 122 Form 4 transactions for Post Holdings, Inc. (POST) over the past 18 months (most recent 2026-09-03). Recent activity: STIRITZ WILLIAM P (Insider) Sell 99,990 shares, STIRITZ WILLIAM P (Insider) Sell 6,207 shares, STIRITZ WILLIAM P (Insider) Sell 277,707 shares, STIRITZ WILLIAM P (Insider) Sell 228 shares, Zadoks Jeff A (Director) Sell 122,740 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-03 | STIRITZ WILLIAM P | Insider | Sell | 99,990 | $8.4M |
| 2026-09-03 | STIRITZ WILLIAM P | Insider | Sell | 6,207 | $525,298 |
| 2026-09-03 | STIRITZ WILLIAM P | Insider | Sell | 277,707 | $23.4M |
| 2026-09-03 | STIRITZ WILLIAM P | Insider | Sell | 228 | $19,382 |
| 2026-08-27 | Zadoks Jeff A | Director | Sell | 122,740 | $0 |
| 2026-08-27 | Zadoks Jeff A | Director | Buy | 26,215 | $0 |
| 2026-08-27 | Zadoks Jeff A | Director | Sell | 26,215 | $0 |
| 2026-08-27 | Zadoks Jeff A | Director | Buy | 122,740 | $0 |
| 2026-07-07 | Zadoks Jeff A | Director | Sell | 2,544 | $231,351 |
| 2026-07-07 | Zadoks Jeff A | Director | Sell | 3,867 | $351,665 |
| 2026-07-07 | Zadoks Jeff A | Director | Sell | 3,551 | $322,928 |
| 2026-05-14 | CURL GREGORY L | Director | Sell | 6,186 | $649,839 |
| 2026-04-06 | Pearson Gregory Carl | PRES & CEO, PCB | Buy | 2,571 | $0 |
| 2026-04-06 | Pearson Gregory Carl | PRES & CEO, PCB | Buy | 5,914 | $0 |
| 2026-03-18 | Zadoks Jeff A | Director | Buy | 1,700 | $0 |
| 2026-03-18 | Atkinson Michelle Marie | Director | Buy | 1,700 | $0 |
| 2026-02-10 | CURL GREGORY L | Director | Sell | 6,983 | $798,227 |
| 2026-02-05 | ERB THOMAS C | Director | Buy | 1,600 | $0 |
| 2026-02-05 | SKARIE DAVID P | Director | Buy | 1,600 | $0 |
| 2026-02-05 | CURL GREGORY L | Director | Buy | 1,600 | $0 |
| 2026-02-05 | KEMPER DAVID W | Director | Buy | 1,600 | $0 |
| 2026-02-05 | BURWELL DOROTHY M | Director | Buy | 1,600 | $0 |
| 2026-02-05 | JOHNSON JENNIFER KUPERMAN | Director | Buy | 1,600 | $0 |
| 2026-01-12 | HARPER BRADLY A | SVP, CHIEF ACCTING OFFICER | Sell | 478 | $47,050 |
| 2026-01-06 | Zadoks Jeff A | EVP & COO | Sell | 301 | $29,814 |
Source: SEC Form 4 filings · as of 2026-09-03