Post Holdings, Inc. (POST) Insider Ownership

Historic Insider Ownership Trends

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).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
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