As of June 02, 2026, the three largest insider holders of POST are William P Stiritz (Chairman And Ceo, 4.33Mn shares), Robert V Vitale (President Ceo, 987.34K shares), Robert V Vitale (President Ceo, 487.76K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| David W Kemper | - | 33,122 | 0 | 05 Feb, 2026 |
| William P Stiritz | Chairman And Ceo | 4,334,667 | 0 | 19 Dec, 2025 |
| David P Skarie | - | 56,991 | 0 | 05 Feb, 2026 |
| Gregory L Curl | - | 21,293 | 0 | 10 Feb, 2026 |
| Jeff A Zadoks | Evp Coo | 0 | 152,740 | 03 Dec, 2025 |
| Edwin H Callison | - | 17,045 | 0 | 04 Apr, 2022 |
| Robert E Grote | - | 9,665 | 0 | 20 Nov, 2024 |
| Robert V Vitale | President Ceo | 987,338 | 0 | 20 Nov, 2025 |
| Diedre J Gray | Evp, Gc Cao, Secy | 0 | 164,903 | 29 Dec, 2025 |
| Howard A Friedman | Evp Coo | 69,948 | 0 | 18 Nov, 2021 |
| Ellen F Harshman | - | 10,372 | 0 | 05 Sep, 2024 |
| Mark W Westphal | Pres., Foodservice | 197,756 | 0 | 20 Nov, 2025 |
| Bradly A Harper | Svp, Chief Accting Officer | 10,963 | 0 | 12 Jan, 2026 |
| Jennifer Kuperman Johnson | - | 8,675 | 0 | 05 Feb, 2026 |
| Dorothy M Burwell | - | 8,665 | 0 | 05 Feb, 2026 |
| Thomas C Erb | - | 38,675 | 0 | 05 Feb, 2026 |
| Nicolas Catoggio | Pres Ceo, Pcb | 75,542 | 0 | 26 Nov, 2025 |
| Matthew J Mainer | Evp, Cfo Treasurer | 74,670 | 0 | 05 Dec, 2025 |
| Michelle Marie Atkinson | - | 1,700 | 0 | 18 Mar, 2026 |
| Gregory Carl Pearson | Pres Ceo, Pcb | 8,485 | 0 | 06 Apr, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 05 Apr, 2026 | Gregory Carl Pearson | Common Stock | A | 5,914 | $0.00 | 5,914 | D | A |
| 05 Apr, 2026 | Gregory Carl Pearson | Common Stock | A | 2,571 | $0.00 | 8,485 | D | A |
| 31 Mar, 2026 | Jeff A Zadoks | Post Holdings, Inc. Stock Equivalents | A | 62 | $98.86 | 62 | D | A |
| 31 Mar, 2026 | David P Skarie | Post Holdings, Inc. Stock Equivalents | A | 135 | $98.86 | 33,094 | D | A |
| 31 Mar, 2026 | David P Skarie | Post Holdings, Inc. Stock Equivalents | A | 135 | $98.86 | 33,094 | D | A |
| 31 Mar, 2026 | David P Skarie | Post Holdings, Inc. Stock Equivalents | A | 135 | $98.86 | 33,094 | D | A |
| 31 Mar, 2026 | Dorothy M Burwell | Post Holdings, Inc. Stock Equivalents | A | 112 | $98.86 | 8,262 | D | A |
| 31 Mar, 2026 | Jeff A Zadoks | Post Holdings, Inc. Stock Equivalents | A | 62 | $98.86 | 62 | D | A |
| 31 Mar, 2026 | Jeff A Zadoks | Post Holdings, Inc. Stock Equivalents | A | 62 | $98.86 | 62 | D | A |
| 31 Mar, 2026 | Michelle Marie Atkinson | Post Holdings, Inc. Stock Equivalents | A | 62 | $98.86 | 62 | D | A |
| 31 Mar, 2026 | Gregory L Curl | Post Holdings, Inc. Stock Equivalents | A | 112 | $98.86 | 7,450 | D | A |
| 31 Mar, 2026 | Thomas C Erb | Post Holdings, Inc. Stock Equivalents | A | 112 | $98.86 | 6,750 | D | A |
| 31 Mar, 2026 | David W Kemper | Post Holdings, Inc. Stock Equivalents | A | 174 | $98.86 | 20,380 | D | A |
| 31 Mar, 2026 | Jennifer Kuperman Johnson | Post Holdings, Inc. Stock Equivalents | A | 112 | $98.86 | 6,750 | D | A |
| 16 Mar, 2026 | Jeff A Zadoks | Common Stock | A | 1,700 | $0.00 | 37,977 | D | A |
| 16 Mar, 2026 | Jeff A Zadoks | Common Stock | A | 1,700 | $0.00 | 37,977 | D | A |
| 16 Mar, 2026 | Michelle Marie Atkinson | Common Stock | A | 1,700 | $0.00 | 1,700 | D | A |
| 16 Mar, 2026 | Jeff A Zadoks | Common Stock | A | 1,700 | $0.00 | 37,977 | D | A |
| 27 Feb, 2026 | David W Kemper | Post Holdings, Inc. Stock Equivalents | A | 162 | $106.30 | 20,203 | D | A |
| 27 Feb, 2026 | David P Skarie | Post Holdings, Inc. Stock Equivalents | A | 125 | $106.30 | 32,955 | D | A |