Follow the people · Insider
William P. Stiritz
William P. Stiritz files insider transactions with the SEC as a chairman and ceo of Post Holdings (POST). We hold 2 disclosed purchases and sales filed since 3 January 2006, 2 of them in the last 90 days.
- Files forPOST
- Disclosed buys and sells2 in all, 2 in the last 90 days
- Last disclosure3 September 2026
Positions held
5 posts we hold — a term names its own dates; a run of filings only says when they filed- Filed 3 February 2012 — 2 September 2026Chairman and CEO · Post Holdings (POST)153 Form 4 lines · source: SEC Form 4
- Filed 3 January 2006 — 31 January 2012Director · Ralcorp Holdings Inc /mo (RAH)108 Form 4 lines · source: SEC Form 4
- Filed 30 September 2006 — 23 September 2009Director · Vail Resorts (MTN)12 Form 4 lines · source: SEC Form 4
- Filed 1 May 2000 — 31 March 2008Director · Energizer Holdings (ENR)36 Form 4 lines · source: SEC Form 4
- Filed 31 December 2005 — 31 March 2007Director · Federated Department Stores Inc /de/ (FD)42 Form 4 lines · source: SEC Form 4
Everything they disclosed
120 entries, newest first — one per disclosure report, one per Form 4 line- ▼ sold on the open market 99,990 shares of Post HoldingsSEC Form 43 September 2026Common Stock · traded 1 September 2026 · filed 3 September 2026
- ▼ sold on the open market 6,207 shares of Post HoldingsSEC Form 43 September 2026Common Stock · traded 1 September 2026 · filed 3 September 2026
- ▼ sold on the open market 277,707 shares of Post HoldingsSEC Form 43 September 2026Common Stock · traded 2 September 2026 · filed 3 September 2026
- ▼ sold on the open market 228 shares of Post HoldingsSEC Form 43 September 2026Common Stock · traded 2 September 2026 · filed 3 September 2026
- exercised options over 10,703 shares of Post Holdings (a derivative holding)SEC Form 419 December 2025Post Holdings, Inc. Stock Equivalents · traded 17 December 2025 · filed 19 December 2025
- exercised options over 170,001 shares of Post Holdings (a derivative holding)SEC Form 419 December 2025Post Holdings, Inc. Stock Equivalents · traded 18 December 2025 · filed 19 December 2025
- exercised options over 10,703 shares of Post HoldingsSEC Form 419 December 2025Common Stock · traded 17 December 2025 · filed 19 December 2025
- returned to the issuer 10,703 shares of Post HoldingsSEC Form 419 December 2025Common Stock · traded 17 December 2025 · filed 19 December 2025
- exercised options over 170,001 shares of Post HoldingsSEC Form 419 December 2025Common Stock · traded 18 December 2025 · filed 19 December 2025
- returned to the issuer 170,001 shares of Post HoldingsSEC Form 419 December 2025Common Stock · traded 18 December 2025 · filed 19 December 2025
- was granted 58 shares of Post Holdings (a derivative holding)SEC Form 418 December 2025Post Holdings, Inc. Stock Equivalents · traded 16 December 2025 · filed 18 December 2025
- was granted 107 shares of Post Holdings (a derivative holding)SEC Form 42 December 2025Post Holdings, Inc. Stock Equivalents · traded 28 November 2025 · filed 2 December 2025
- was granted 107 shares of Post Holdings (a derivative holding)SEC Form 44 November 2025Post Holdings, Inc. Stock Equivalents · traded 31 October 2025 · filed 4 November 2025
- was granted 103 shares of Post Holdings (a derivative holding)SEC Form 42 October 2025Post Holdings, Inc. Stock Equivalents · traded 30 September 2025 · filed 2 October 2025
- was granted 98 shares of Post Holdings (a derivative holding)SEC Form 43 September 2025Post Holdings, Inc. Stock Equivalents · traded 29 August 2025 · filed 3 September 2025
- ▲ bought on the open market 36,000 shares of Post HoldingsSEC Form 421 August 2025Common Stock · traded 19 August 2025 · filed 21 August 2025
- was granted 105 shares of Post Holdings (a derivative holding)SEC Form 44 August 2025Post Holdings, Inc. Stock Equivalents · traded 31 July 2025 · filed 4 August 2025
- was granted 102 shares of Post Holdings (a derivative holding)SEC Form 42 July 2025Post Holdings, Inc. Stock Equivalents · traded 30 June 2025 · filed 2 July 2025
- ▲ bought on the open market 186,740 shares of Post HoldingsSEC Form 49 June 2025Common Stock · traded 5 June 2025 · filed 9 June 2025
- was granted 100 shares of Post Holdings (a derivative holding)SEC Form 43 June 2025Post Holdings, Inc. Stock Equivalents · traded 30 May 2025 · filed 3 June 2025
- was granted 98 shares of Post Holdings (a derivative holding)SEC Form 42 May 2025Post Holdings, Inc. Stock Equivalents · traded 30 April 2025 · filed 2 May 2025
- was granted 95 shares of Post Holdings (a derivative holding)SEC Form 42 April 2025Post Holdings, Inc. Stock Equivalents · traded 31 March 2025 · filed 2 April 2025
- was granted 98 shares of Post Holdings (a derivative holding)SEC Form 44 March 2025Post Holdings, Inc. Stock Equivalents · traded 28 February 2025 · filed 4 March 2025
- was granted 2,500 shares of Post HoldingsSEC Form 46 February 2025Common Stock · traded 4 February 2025 · filed 6 February 2025
- was granted 105 shares of Post Holdings (a derivative holding)SEC Form 44 February 2025Post Holdings, Inc. Stock Equivalents · traded 31 January 2025 · filed 4 February 2025
- was granted 97 shares of Post Holdings (a derivative holding)SEC Form 43 January 2025Post Holdings, Inc. Stock Equivalents · traded 31 December 2024 · filed 3 January 2025
- was granted 92 shares of Post Holdings (a derivative holding)SEC Form 43 December 2024Post Holdings, Inc. Stock Equivalents · traded 29 November 2024 · filed 3 December 2024
- was granted 102 shares of Post Holdings (a derivative holding)SEC Form 44 November 2024Post Holdings, Inc. Stock Equivalents · traded 31 October 2024 · filed 4 November 2024
- was granted 96 shares of Post Holdings (a derivative holding)SEC Form 42 October 2024Post Holdings, Inc. Stock Equivalents · traded 30 September 2024 · filed 2 October 2024
- was granted 96 shares of Post Holdings (a derivative holding)SEC Form 44 September 2024Post Holdings, Inc. Stock Equivalents · traded 30 August 2024 · filed 4 September 2024
- was granted 102 shares of Post Holdings (a derivative holding)SEC Form 42 August 2024Post Holdings, Inc. Stock Equivalents · traded 31 July 2024 · filed 2 August 2024
- was granted 107 shares of Post Holdings (a derivative holding)SEC Form 42 July 2024Post Holdings, Inc. Stock Equivalents · traded 28 June 2024 · filed 2 July 2024
- was granted 104 shares of Post Holdings (a derivative holding)SEC Form 43 June 2024Post Holdings, Inc. Stock Equivalents · traded 31 May 2024 · filed 3 June 2024
- was granted 105 shares of Post Holdings (a derivative holding)SEC Form 41 May 2024Post Holdings, Inc. Stock Equivalents · traded 30 April 2024 · filed 1 May 2024
- was granted 105 shares of Post Holdings (a derivative holding)SEC Form 41 April 2024Post Holdings, Inc. Stock Equivalents · traded 28 March 2024 · filed 1 April 2024
- was granted 107 shares of Post Holdings (a derivative holding)SEC Form 44 March 2024Post Holdings, Inc. Stock Equivalents · traded 29 February 2024 · filed 4 March 2024
- was granted 120 shares of Post Holdings (a derivative holding)SEC Form 41 February 2024Post Holdings, Inc. Stock Equivalents · traded 31 January 2024 · filed 1 February 2024
- was granted 2,700 shares of Post HoldingsSEC Form 41 February 2024Common Stock · traded 30 January 2024 · filed 1 February 2024
- was granted 126 shares of Post Holdings (a derivative holding)SEC Form 43 January 2024Post Holdings, Inc. Stock Equivalents · traded 29 December 2023 · filed 3 January 2024
- was granted 130 shares of Post Holdings (a derivative holding)SEC Form 44 December 2023Post Holdings, Inc. Stock Equivalents · traded 30 November 2023 · filed 4 December 2023
- was granted 138 shares of Post Holdings (a derivative holding)SEC Form 42 November 2023Post Holdings, Inc. Stock Equivalents · traded 31 October 2023 · filed 2 November 2023
- was granted 130 shares of Post Holdings (a derivative holding)SEC Form 43 October 2023Post Holdings, Inc. Stock Equivalents · traded 29 September 2023 · filed 3 October 2023
- was granted 124 shares of Post Holdings (a derivative holding)SEC Form 45 September 2023Post Holdings, Inc. Stock Equivalents · traded 31 August 2023 · filed 5 September 2023
- was granted 130 shares of Post Holdings (a derivative holding)SEC Form 42 August 2023Post Holdings, Inc. Stock Equivalents · traded 31 July 2023 · filed 2 August 2023
- was granted 128 shares of Post Holdings (a derivative holding)SEC Form 45 July 2023Post Holdings, Inc. Stock Equivalents · traded 30 June 2023 · filed 5 July 2023
- was granted 131 shares of Post Holdings (a derivative holding)SEC Form 41 June 2023Post Holdings, Inc. Stock Equivalents · traded 31 May 2023 · filed 1 June 2023
- was granted 123 shares of Post Holdings (a derivative holding)SEC Form 41 May 2023Post Holdings, Inc. Stock Equivalents · traded 28 April 2023 · filed 1 May 2023
- was granted 124 shares of Post Holdings (a derivative holding)SEC Form 44 April 2023Post Holdings, Inc. Stock Equivalents · traded 31 March 2023 · filed 4 April 2023
- was granted 124 shares of Post Holdings (a derivative holding)SEC Form 41 March 2023Post Holdings, Inc. Stock Equivalents · traded 28 February 2023 · filed 1 March 2023
- was granted 117 shares of Post Holdings (a derivative holding)SEC Form 42 February 2023Post Holdings, Inc. Stock Equivalents · traded 31 January 2023 · filed 2 February 2023
- was granted 2,700 shares of Post HoldingsSEC Form 42 February 2023Common Stock · traded 31 January 2023 · filed 2 February 2023
- was granted 111 shares of Post Holdings (a derivative holding)SEC Form 43 January 2023Post Holdings, Inc. Stock Equivalents · traded 30 December 2022 · filed 3 January 2023
- was granted 107 shares of Post Holdings (a derivative holding)SEC Form 42 December 2022Post Holdings, Inc. Stock Equivalents · traded 30 November 2022 · filed 2 December 2022
- was granted 111 shares of Post Holdings (a derivative holding)SEC Form 41 November 2022Post Holdings, Inc. Stock Equivalents · traded 31 October 2022 · filed 1 November 2022
- was granted 122 shares of Post Holdings (a derivative holding)SEC Form 44 October 2022Post Holdings, Inc. Stock Equivalents · traded 30 September 2022 · filed 4 October 2022
- was granted 113 shares of Post Holdings (a derivative holding)SEC Form 42 September 2022Post Holdings, Inc. Stock Equivalents · traded 31 August 2022 · filed 2 September 2022
- was granted 115 shares of Post Holdings (a derivative holding)SEC Form 42 August 2022Post Holdings, Inc. Stock Equivalents · traded 29 July 2022 · filed 2 August 2022
- was granted 121 shares of Post Holdings (a derivative holding)SEC Form 45 July 2022Post Holdings, Inc. Stock Equivalents · traded 30 June 2022 · filed 5 July 2022
- was granted 122 shares of Post Holdings (a derivative holding)SEC Form 41 June 2022Post Holdings, Inc. Stock Equivalents · traded 31 May 2022 · filed 1 June 2022
- was granted 134 shares of Post Holdings (a derivative holding)SEC Form 42 May 2022Post Holdings, Inc. Stock Equivalents · traded 29 April 2022 · filed 2 May 2022
- was granted 144 shares of Post Holdings (a derivative holding)SEC Form 44 April 2022Post Holdings, Inc. Stock Equivalents · traded 31 March 2022 · filed 4 April 2022
- was granted 1,110 shares of Post HoldingsSEC Form 44 April 2022Common Stock · traded 10 March 2022 · filed 4 April 2022
- was granted 95 shares of Post Holdings (a derivative holding)SEC Form 41 March 2022Post Holdings, Inc. Stock Equivalents · traded 28 February 2022 · filed 1 March 2022
- was granted 95 shares of Post Holdings (a derivative holding)SEC Form 42 February 2022Post Holdings, Inc. Stock Equivalents · traded 31 January 2022 · filed 2 February 2022
- was granted 2,300 shares of Post HoldingsSEC Form 42 February 2022Common Stock · traded 1 February 2022 · filed 2 February 2022
- was granted 89 shares of Post Holdings (a derivative holding)SEC Form 44 January 2022Post Holdings, Inc. Stock Equivalents · traded 31 December 2021 · filed 4 January 2022
- was granted 104 shares of Post Holdings (a derivative holding)SEC Form 42 December 2021Post Holdings, Inc. Stock Equivalents · traded 30 November 2021 · filed 2 December 2021
- was granted 99 shares of Post Holdings (a derivative holding)SEC Form 42 November 2021Post Holdings, Inc. Stock Equivalents · traded 29 October 2021 · filed 2 November 2021
- was granted 91 shares of Post Holdings (a derivative holding)SEC Form 44 October 2021Post Holdings, Inc. Stock Equivalents · traded 30 September 2021 · filed 4 October 2021
- was granted 89 shares of Post Holdings (a derivative holding)SEC Form 42 September 2021Post Holdings, Inc. Stock Equivalents · traded 31 August 2021 · filed 2 September 2021
- was granted 98 shares of Post Holdings (a derivative holding)SEC Form 43 August 2021Post Holdings, Inc. Stock Equivalents · traded 30 July 2021 · filed 3 August 2021
- was granted 92 shares of Post Holdings (a derivative holding)SEC Form 42 July 2021Post Holdings, Inc. Stock Equivalents · traded 30 June 2021 · filed 2 July 2021
- was granted 86 shares of Post Holdings (a derivative holding)SEC Form 42 June 2021Post Holdings, Inc. Stock Equivalents · traded 1 June 2021 · filed 2 June 2021
- was granted 88 shares of Post Holdings (a derivative holding)SEC Form 44 May 2021Post Holdings, Inc. Stock Equivalents · traded 30 April 2021 · filed 4 May 2021
- was granted 95 shares of Post Holdings (a derivative holding)SEC Form 41 April 2021Post Holdings, Inc. Stock Equivalents · traded 31 March 2021 · filed 1 April 2021
- was granted 104 shares of Post Holdings (a derivative holding)SEC Form 41 March 2021Post Holdings, Inc. Stock Equivalents · traded 26 February 2021 · filed 1 March 2021
- was granted 102 shares of Post Holdings (a derivative holding)SEC Form 412 February 2021Post Holdings, Inc. Stock Equivalents · traded 10 February 2021 · filed 12 February 2021
- was granted 2,600 shares of Post HoldingsSEC Form 44 February 2021Common Stock · traded 2 February 2021 · filed 4 February 2021
- was granted 99 shares of Post Holdings (a derivative holding)SEC Form 44 January 2021Post Holdings, Inc. Stock Equivalents · traded 31 December 2020 · filed 4 January 2021
- was granted 106 shares of Post Holdings (a derivative holding)SEC Form 41 December 2020Post Holdings, Inc. Stock Equivalents · traded 30 November 2020 · filed 1 December 2020
- was granted 116 shares of Post Holdings (a derivative holding)SEC Form 42 November 2020Post Holdings, Inc. Stock Equivalents · traded 30 October 2020 · filed 2 November 2020
- was granted 116 shares of Post Holdings (a derivative holding)SEC Form 41 October 2020Post Holdings, Inc. Stock Equivalents · traded 30 September 2020 · filed 1 October 2020
- was granted 114 shares of Post Holdings (a derivative holding)SEC Form 41 September 2020Post Holdings, Inc. Stock Equivalents · traded 31 August 2020 · filed 1 September 2020
- was granted 113 shares of Post Holdings (a derivative holding)SEC Form 45 August 2020Post Holdings, Inc. Stock Equivalents · traded 31 July 2020 · filed 5 August 2020
- was granted 114 shares of Post Holdings (a derivative holding)SEC Form 42 July 2020Post Holdings, Inc. Stock Equivalents · traded 30 June 2020 · filed 2 July 2020
- was granted 115 shares of Post Holdings (a derivative holding)SEC Form 42 June 2020Post Holdings, Inc. Stock Equivalents · traded 29 May 2020 · filed 2 June 2020
- was granted 109 shares of Post Holdings (a derivative holding)SEC Form 44 May 2020Post Holdings, Inc. Stock Equivalents · traded 30 April 2020 · filed 4 May 2020
- was granted 121 shares of Post Holdings (a derivative holding)SEC Form 41 April 2020Post Holdings, Inc. Stock Equivalents · traded 31 March 2020 · filed 1 April 2020
- was granted 99 shares of Post Holdings (a derivative holding)SEC Form 42 March 2020Post Holdings, Inc. Stock Equivalents · traded 28 February 2020 · filed 2 March 2020
- was granted 2,400 shares of Post HoldingsSEC Form 46 February 2020Common Stock · traded 4 February 2020 · filed 6 February 2020
- was granted 96 shares of Post Holdings (a derivative holding)SEC Form 44 February 2020Post Holdings, Inc. Stock Equivalents · traded 31 January 2020 · filed 4 February 2020
- was granted 92 shares of Post Holdings (a derivative holding)SEC Form 42 January 2020Post Holdings, Inc. Stock Equivalents · traded 31 December 2019 · filed 2 January 2020
- was granted 95 shares of Post Holdings (a derivative holding)SEC Form 42 December 2019Post Holdings, Inc. Stock Equivalents · traded 29 November 2019 · filed 2 December 2019
- was granted 97 shares of Post Holdings (a derivative holding)SEC Form 41 November 2019Post Holdings, Inc. Stock Equivalents · traded 31 October 2019 · filed 1 November 2019
- was granted 94 shares of Post Holdings (a derivative holding)SEC Form 42 October 2019Post Holdings, Inc. Stock Equivalents · traded 30 September 2019 · filed 2 October 2019
- was granted 100 shares of Post Holdings (a derivative holding)SEC Form 43 September 2019Post Holdings, Inc. Stock Equivalents · traded 30 August 2019 · filed 3 September 2019
- exercised options over 500,000 shares of Post Holdings (a derivative holding)SEC Form 420 August 2019Employee Stock Options (right to buy) · traded 19 August 2019 · filed 20 August 2019
- exercised options over 500,000 shares of Post HoldingsSEC Form 420 August 2019Common Stock · traded 19 August 2019 · filed 20 August 2019
- exercised options over 400,000 shares of Post Holdings (a derivative holding)SEC Form 45 August 2019Employee Stock Options (right to buy) · traded 5 August 2019 · filed 5 August 2019
- exercised options over 500,000 shares of Post Holdings (a derivative holding)SEC Form 45 August 2019Employee Stock Options (right to buy) · traded 5 August 2019 · filed 5 August 2019
- exercised options over 400,000 shares of Post HoldingsSEC Form 45 August 2019Common Stock · traded 5 August 2019 · filed 5 August 2019
- exercised options over 500,000 shares of Post HoldingsSEC Form 45 August 2019Common Stock · traded 5 August 2019 · filed 5 August 2019
- was granted 93 shares of Post Holdings (a derivative holding)SEC Form 41 August 2019Post Holdings, Inc. Stock Equivalents · traded 31 July 2019 · filed 1 August 2019
- was granted 96 shares of Post Holdings (a derivative holding)SEC Form 42 July 2019Post Holdings, Inc. Stock Equivalents · traded 28 June 2019 · filed 2 July 2019
- was granted 95 shares of Post Holdings (a derivative holding)SEC Form 43 June 2019Post Holdings, Inc. Stock Equivalents · traded 31 May 2019 · filed 3 June 2019
- was granted 89 shares of Post Holdings (a derivative holding)SEC Form 42 May 2019Post Holdings, Inc. Stock Equivalents · traded 30 April 2019 · filed 2 May 2019
- was granted 91 shares of Post Holdings (a derivative holding)SEC Form 42 April 2019Post Holdings, Inc. Stock Equivalents · traded 29 March 2019 · filed 2 April 2019
- was granted 98 shares of Post Holdings (a derivative holding)SEC Form 41 March 2019Post Holdings, Inc. Stock Equivalents · traded 28 February 2019 · filed 1 March 2019
- was granted 88,884 shares of Post Holdings (a derivative holding)SEC Form 415 February 2019Post Holdings, Inc. Stock Equivalents · traded 13 February 2019 · filed 15 February 2019
- ▲ bought on the open market 32,246 shares of Post HoldingsSEC Form 412 February 2019Common Stock · traded 8 February 2019 · filed 12 February 2019
- ▲ bought on the open market 3,509 shares of Post HoldingsSEC Form 412 February 2019Common Stock · traded 8 February 2019 · filed 12 February 2019
- ▲ bought on the open market 869 shares of Post HoldingsSEC Form 48 February 2019Common Stock · traded 6 February 2019 · filed 8 February 2019
- ▲ bought on the open market 133,190 shares of Post HoldingsSEC Form 48 February 2019Common Stock · traded 6 February 2019 · filed 8 February 2019
- exercised options over 1,050,000 shares of Post Holdings (a derivative holding)SEC Form 46 February 2019Employee Stock Option (right to buy) · traded 4 February 2019 · filed 6 February 2019
- exercised options over 200,000 shares of Post Holdings (a derivative holding)SEC Form 46 February 2019Employee Stock Options (right to buy) · traded 4 February 2019 · filed 6 February 2019
- exercised options over 1,050,000 shares of Post HoldingsSEC Form 46 February 2019Common Stock · traded 4 February 2019 · filed 6 February 2019
- exercised options over 200,000 shares of Post HoldingsSEC Form 46 February 2019Common Stock · traded 4 February 2019 · filed 6 February 2019
- gave away 5,000 shares of Post HoldingsSEC Form 46 February 2019Common Stock · traded 4 February 2019 · filed 6 February 2019
- was granted 108 shares of Post Holdings (a derivative holding)SEC Form 41 February 2019Post Holdings, Inc. Stock Equivalents · traded 31 January 2019 · filed 1 February 2019
- was granted 2,700 shares of Post HoldingsSEC Form 41 February 2019Common Stock · traded 30 January 2019 · filed 1 February 2019
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.