SEC Form 4 · Updated Daily
POST
— Post Holdings, Inc. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| RALCORP HOLDINGS INC /MO | 10%+ Owner | 1,325,985 | 2012-09-28 | J |
| VITALE ROBERT V | Director · Officer | 1,106,257 | 2026-10-22 | A |
| STIRITZ WILLIAM P | Reporting Owner | 284,142 | 2026-09-01 | S |
| WESTPHAL MARK W | Officer | 236,197 | 2026-10-22 | A |
| DANFORTH WILLIAM H | Director | 125,499 | 2012-02-07 | P |
| CATOGGIO NICOLAS | Officer | 116,504 | 2026-10-22 | A |
| MAINER MATTHEW J | Officer | 92,694 | 2026-10-22 | A |
| GRAY DIEDRE J | Officer | 74,235 | 2026-10-22 | A |
| Friedman Howard A | Officer | 69,948 | 2021-11-17 | F |
| Holbrook Jim | Officer | 65,369 | 2014-10-15 | F |
| SKARIE DAVID P | Director | 56,991 | 2026-02-03 | A |
| BLOCK TERENCE E | Director · Officer | 48,548 | 2014-10-15 | F |
| Zadoks Jeff A | Director | 42,510 | 2026-10-22 | A |
| ERB THOMAS C | Director | 38,675 | 2026-02-03 | A |
| NEUGENT CHRISTOPHER J | Officer | 38,203 | 2017-11-16 | F |
| KOULOURIS RICHARD R | Officer | 34,334 | 2016-11-14 | A |
| KEMPER DAVID W | Director | 33,122 | 2026-02-03 | A |
| DWYER JAMES E JR | Officer | 18,106 | 2017-11-16 | F |
| CALLISON EDWIN H | Director | 17,045 | 2022-03-10 | A |
| CURL GREGORY L | Director | 15,107 | 2026-05-13 | S |
| GROTE ROBERT E | Director | 11,814 | 2024-11-18 | M |
| HARPER BRADLY A | Officer | 10,963 | 2026-01-09 | F |
| HARSHMAN ELLEN F | Director | 10,372 | 2024-09-04 | S |
| JOHNSON JENNIFER KUPERMAN | Director | 8,675 | 2026-02-03 | A |
| BURWELL DOROTHY M | Director | 8,665 | 2026-02-03 | A |
| Pearson Gregory Carl | Officer | 8,485 | 2026-04-05 | A |
| BROWN JAY W | Director | 3,300 | 2020-02-13 | S |
| Atkinson Michelle Marie | Director | 1,700 | 2026-03-16 | A |
| BANKS DAVID R | Director | 1,000 | 2013-05-30 | P |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-10-22 | CATOGGIO NICOLAS | Tax withholding | 18,533 | $78.06 | 97,971 |
| 2026-10-22 | CATOGGIO NICOLAS | Grant / award | 40,962 | $0.00 | 116,504 |
| 2026-10-22 | GRAY DIEDRE J | Tax withholding | 18,655 | $78.06 | 55,580 |
| 2026-10-22 | GRAY DIEDRE J | Grant / award | 42,349 | $0.00 | 74,235 |
| 2026-10-22 | MAINER MATTHEW J | Tax withholding | 7,940 | $78.06 | 84,754 |
| 2026-10-22 | MAINER MATTHEW J | Grant / award | 18,024 | $0.00 | 92,694 |
| 2026-10-22 | VITALE ROBERT V | Tax withholding | 52,384 | $78.06 | 1,053,873 |
| 2026-10-22 | VITALE ROBERT V | Grant / award | 118,919 | $0.00 | 1,106,257 |
| 2026-10-22 | WESTPHAL MARK W | Tax withholding | 17,530 | $78.06 | 218,667 |
| 2026-10-22 | WESTPHAL MARK W | Grant / award | 38,441 | $0.00 | 236,197 |
| 2026-10-22 | Zadoks Jeff A | Tax withholding | 17,933 | $78.06 | 24,577 |
| 2026-10-22 | Zadoks Jeff A | Grant / award | 40,710 | $0.00 | 42,510 |
| 2026-09-30 | Atkinson Michelle Marie | Grant / award (derivative) | 152.517 | $72.85 | 822.442 |
| 2026-09-30 | BURWELL DOROTHY M | Grant / award (derivative) | 152.517 | $72.85 | 9,027.942 |
| 2026-09-30 | CURL GREGORY L | Grant / award (derivative) | 152.517 | $72.85 | 8,215.578 |
| 2026-09-30 | ERB THOMAS C | Grant / award (derivative) | 152.517 | $72.85 | 7,515.439 |
| 2026-09-30 | KEMPER DAVID W | Grant / award (derivative) | 236.401 | $72.85 | 21,572.09 |
| 2026-09-30 | JOHNSON JENNIFER KUPERMAN | Grant / award (derivative) | 152.517 | $72.85 | 7,515.439 |
| 2026-09-30 | SKARIE DAVID P | Grant / award (derivative) | 183.02 | $72.85 | 34,027.822 |
| 2026-09-30 | Zadoks Jeff A | Grant / award (derivative) | 152.517 | $72.85 | 822.442 |
| 2026-09-02 | STIRITZ WILLIAM P | Open-market sale | 228 | $85.01 | 0 |
| 2026-09-02 | STIRITZ WILLIAM P | Open-market sale | 277,707 | $84.23 | 228 |
| 2026-09-01 | STIRITZ WILLIAM P | Open-market sale | 6,207 | $84.63 | 277,935 |
| 2026-09-01 | STIRITZ WILLIAM P | Open-market sale | 99,990 | $83.54 | 284,142 |
| 2026-08-31 | Atkinson Michelle Marie | Grant / award (derivative) | 133.287 | $83.36 | 669.672 |
| 2026-08-31 | BURWELL DOROTHY M | Grant / award (derivative) | 133.287 | $83.36 | 8,872.064 |
| 2026-08-31 | CURL GREGORY L | Grant / award (derivative) | 133.287 | $83.36 | 8,060.007 |
| 2026-08-31 | ERB THOMAS C | Grant / award (derivative) | 133.287 | $83.36 | 7,360.134 |
| 2026-08-31 | KEMPER DAVID W | Grant / award (derivative) | 206.595 | $83.36 | 21,327.607 |
| 2026-08-31 | JOHNSON JENNIFER KUPERMAN | Grant / award (derivative) | 133.287 | $83.36 | 7,360.134 |
| 2026-08-31 | SKARIE DAVID P | Grant / award (derivative) | 159.945 | $83.36 | 33,831.983 |
| 2026-08-31 | Zadoks Jeff A | Grant / award (derivative) | 133.287 | $83.36 | 669.672 |
| 2026-08-25 | Zadoks Jeff A | Gift | 122,740 | $0.00 | 122,740 |
| 2026-08-25 | Zadoks Jeff A | Gift | 122,740 | $0.00 | 0 |
| 2026-08-25 | Zadoks Jeff A | Gift | 26,215 | $0.00 | 74,360 |
| 2026-08-25 | Zadoks Jeff A | Gift | 26,215 | $0.00 | 1,800 |
| 2026-07-31 | Atkinson Michelle Marie | Grant / award (derivative) | 121.549 | $91.41 | 536.013 |
| 2026-07-31 | BURWELL DOROTHY M | Grant / award (derivative) | 121.549 | $91.41 | 8,732.714 |
| 2026-07-31 | CURL GREGORY L | Grant / award (derivative) | 121.549 | $91.41 | 7,921.221 |
| 2026-07-31 | ERB THOMAS C | Grant / award (derivative) | 121.549 | $91.41 | 7,221.833 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.