Post Holdings's three largest insider shareholders as of April 22, 2026 are William P Stiritz (Chairman And Ceo, 4.33Mn shares), William P Stiritz (Chairman And Ceo, 4.33Mn shares), Robert V Vitale (President Ceo, 987.34K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| William P Stiritz | Chairman And Ceo | 4,334,667 | 0 | 19 Dec, 2025 |
| William P Stiritz | Chairman And Ceo | 4,334,667 | 0 | 19 Dec, 2025 |
| Robert V Vitale | President Ceo | 987,338 | 0 | 20 Nov, 2025 |
| Robert V Vitale | President Ceo | 987,338 | 0 | 20 Nov, 2025 |
| Robert V Vitale | President Ceo | 0 | 268,511 | 08 Feb, 2024 |
| Robert V Vitale | President Ceo | 0 | 268,511 | 08 Feb, 2024 |
| Robert V Vitale | President Ceo | 0 | 219,250 | 07 Mar, 2024 |
| Robert V Vitale | President Ceo | 0 | 219,250 | 07 Mar, 2024 |
| Mark W Westphal | Pres., Foodservice | 197,756 | 0 | 20 Nov, 2025 |
| Mark W Westphal | Pres., Foodservice | 197,756 | 0 | 20 Nov, 2025 |
| Diedre J Gray | Evp, Gc Cao, Secy | 0 | 164,903 | 29 Dec, 2025 |
| Jeff A Zadoks | Evp Coo | 0 | 152,740 | 03 Dec, 2025 |
| Jeff A Zadoks | Evp Coo | 0 | 152,740 | 03 Dec, 2025 |
| Nicolas Catoggio | Pres Ceo, Pcb | 75,542 | 0 | 26 Nov, 2025 |
| Matthew J Mainer | Evp, Cfo Treasurer | 74,670 | 0 | 05 Dec, 2025 |
| Howard A Friedman | Evp Coo | 69,948 | 0 | 18 Nov, 2021 |
| Jeff A Zadoks | Evp Coo | 0 | 68,145 | 09 Dec, 2022 |
| Jeff A Zadoks | Evp Coo | 0 | 68,145 | 09 Dec, 2022 |
| David P Skarie | - | 56,991 | 0 | 05 Feb, 2026 |
| David P Skarie | - | 56,991 | 0 | 05 Feb, 2026 |
| Diedre J Gray | Evp, Gc Cao, Secy | 0 | 45,839 | 27 Nov, 2024 |
| Thomas C Erb | - | 38,675 | 0 | 05 Feb, 2026 |
| Jeff A Zadoks | Evp Coo | 37,977 | 0 | 18 Mar, 2026 |
| Jeff A Zadoks | Evp Coo | 37,977 | 0 | 18 Mar, 2026 |
| David W Kemper | - | 33,122 | 0 | 05 Feb, 2026 |
| Diedre J Gray | Evp, Gc Cao, Secy | 31,886 | 0 | 02 Dec, 2025 |
| Gregory L Curl | - | 21,293 | 0 | 10 Feb, 2026 |
| Edwin H Callison | - | 17,045 | 0 | 04 Apr, 2022 |
| Bradly A Harper | Svp, Chief Accting Officer | 10,963 | 0 | 12 Jan, 2026 |
| Ellen F Harshman | - | 10,372 | 0 | 05 Sep, 2024 |
| Robert E Grote | - | 9,665 | 0 | 20 Nov, 2024 |
| Jennifer Kuperman Johnson | - | 8,675 | 0 | 05 Feb, 2026 |
| Dorothy M Burwell | - | 8,665 | 0 | 05 Feb, 2026 |
| Gregory Carl Pearson | Pres Ceo, Pcb | 8,485 | 0 | 06 Apr, 2026 |
| Edwin H Callison | - | 0 | 5,200 | 02 Feb, 2022 |
| Michelle Marie Atkinson | - | 1,700 | 0 | 18 Mar, 2026 |
| Jeff A Zadoks | Evp Coo | 0 | 1,256 | 08 Sep, 2025 |
| Jeff A Zadoks | Evp Coo | 0 | 1,256 | 08 Sep, 2025 |
* 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 | David W Kemper | Post Holdings, Inc. Stock Equivalents | A | 174 | $98.86 | 20,380 | D | A |
| 31 Mar, 2026 | Jeff A Zadoks | Post Holdings, Inc. Stock Equivalents | A | 62 | $98.86 | 62 | D | A |
| 31 Mar, 2026 | Thomas C Erb | Post Holdings, Inc. Stock Equivalents | A | 112 | $98.86 | 6,750 | D | A |
| 31 Mar, 2026 | Dorothy M Burwell | Post Holdings, Inc. Stock Equivalents | A | 112 | $98.86 | 8,262 | D | A |
| 31 Mar, 2026 | Jennifer Kuperman Johnson | Post Holdings, Inc. Stock Equivalents | A | 112 | $98.86 | 6,750 | D | A |
| 31 Mar, 2026 | Jeff A Zadoks | 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 | Michelle Marie Atkinson | 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 |
| 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 |
| 16 Mar, 2026 | Jeff A Zadoks | Common Stock | A | 1,700 | $0.00 | 37,977 | D | A |
| 27 Feb, 2026 | Thomas C Erb | Post Holdings, Inc. Stock Equivalents | A | 105 | $106.30 | 6,637 | D | A |
| 27 Feb, 2026 | Gregory L Curl | Post Holdings, Inc. Stock Equivalents | A | 105 | $106.30 | 7,337 | D | A |
| 27 Feb, 2026 | David P Skarie | Post Holdings, Inc. Stock Equivalents | A | 125 | $106.30 | 32,955 | D | A |
| 27 Feb, 2026 | David P Skarie | Post Holdings, Inc. Stock Equivalents | A | 125 | $106.30 | 32,955 | D | A |
| 27 Feb, 2026 | Jennifer Kuperman Johnson | Post Holdings, Inc. Stock Equivalents | A | 105 | $106.30 | 6,637 | D | A |