Based on data from the past 90 days ending February 19, 2026, Post Holdings's three largest insider shareholders are Other William P Stiritz (4.33Mn shares), President & Ceo Robert V Vitale (1.12Mn shares), Pres. And Foodservice Mark W Westphal (197.76K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| William P Stiritz | 4,334,667 | 19 Dec, 2025 | |
| Robert V Vitale | President & Ceo | 1,116,588 | 20 Nov, 2025 |
| Mark W Westphal | Pres. And Foodservice | 197,756 | 20 Nov, 2025 |
| Jeff A Zadoks | Evp & Coo | 189,017 | 06 Jan, 2026 |
| Diedre J Gray | Evp And Gc & Cao And Secy | 163,073 | 02 Dec, 2025 |
| Nicolas Catoggio | Pres & Ceo And Pcb | 75,542 | 26 Nov, 2025 |
| Matthew J Mainer | Evp And Cfo & Treasurer | 74,670 | 05 Dec, 2025 |
| Howard A Friedman | Evp & Coo | 69,948 | 18 Nov, 2021 |
| David P Skarie | 56,991 | 05 Feb, 2026 | |
| Thomas C Erb | 38,675 | 05 Feb, 2026 | |
| David W Kemper | 33,122 | 05 Feb, 2026 | |
| Edwin H Callison | 22,245 | 04 Apr, 2022 | |
| Gregory L Curl | 21,293 | 10 Feb, 2026 | |
| Bradly A Harper | Svp And Chief Accting Officer | 10,963 | 12 Jan, 2026 |
| Ellen F Harshman | 10,372 | 05 Sep, 2024 | |
| Robert E Grote | 9,665 | 20 Nov, 2024 | |
| Jennifer Kuperman Johnson | 8,675 | 05 Feb, 2026 | |
| Dorothy M Burwell | 8,665 | 05 Feb, 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 |
|---|---|---|---|---|---|---|---|---|
| 09 Feb, 2026 | Gregory L Curl | Common Stock | D | 6,983 | $114.31 | 21,293 | D | S |
| 03 Feb, 2026 | David W Kemper | Common Stock | A | 1,600 | $0.00 | 33,122 | D | A |
| 03 Feb, 2026 | David P Skarie | Common Stock | A | 1,600 | $0.00 | 56,991 | D | A |
| 03 Feb, 2026 | Gregory L Curl | Common Stock | A | 1,600 | $0.00 | 28,276 | D | A |
| 03 Feb, 2026 | Jennifer Kuperman Johnson | Common Stock | A | 1,600 | $0.00 | 8,675 | D | A |
| 03 Feb, 2026 | Dorothy M Burwell | Common Stock | A | 1,600 | $0.00 | 8,665 | D | A |
| 03 Feb, 2026 | Thomas C Erb | Common Stock | A | 1,600 | $0.00 | 38,675 | D | A |
| 09 Jan, 2026 | Bradly A Harper | Common Stock | D | 478 | $98.43 | 10,963 | D | F |
| 02 Jan, 2026 | Jeff A Zadoks | Common Stock | D | 458 | $99.05 | 36,277 | D | F |
| 02 Jan, 2026 | Jeff A Zadoks | Common Stock | D | 301 | $99.05 | 27,424 | D | F |
| 02 Jan, 2026 | Jeff A Zadoks | Common Stock | D | 420 | $99.05 | 27,004 | D | F |
| 02 Jan, 2026 | Jeff A Zadoks | Common Stock | A | 9,731 | $0.00 | 36,735 | D | M |
| 26 Dec, 2025 | Diedre J Gray | Common Stock | D | 131,187 | $0.00 | 33,716 | I | G |
| 26 Dec, 2025 | Diedre J Gray | Common Stock | A | 131,187 | $0.00 | 131,187 | I | G |
| 26 Dec, 2025 | Diedre J Gray | - | - | 33,716 | I | |||
| 18 Dec, 2025 | William P Stiritz | Common Stock | D | 170,001 | $101.81 | 4,334,667 | D | D |
| 18 Dec, 2025 | William P Stiritz | Common Stock | A | 170,001 | - | 4,504,668 | D | M |
| 18 Dec, 2025 | William P Stiritz | - | - | 4,504,668 | D | |||
| 18 Dec, 2025 | William P Stiritz | - | - | 4,334,667 | D | |||
| 17 Dec, 2025 | William P Stiritz | - | - | 4,334,667 | D |