STIRITZ WILLIAM P 4
4 · Post Holdings, Inc. · Filed Dec 19, 2025
Insider Transaction Report
Form 4
STIRITZ WILLIAM P
DirectorChairman and CEO
Transactions
- Exercise/Conversion
Common Stock
2025-12-17+10,703.225→ 4,345,370.225 total - Disposition to Issuer
Common Stock
2025-12-17$101.19/sh−10,703.225$1,083,059→ 4,334,667 total - Exercise/Conversion
Common Stock
2025-12-18+170,000.797→ 4,504,667.797 total - Disposition to Issuer
Common Stock
2025-12-18$101.81/sh−170,000.797$17,307,781→ 4,334,667 total - Exercise/Conversion
Post Holdings, Inc. Stock Equivalents
2025-12-17−10,703.225→ 170,000.797 total→ Common Stock (10,703.225 underlying) - Exercise/Conversion
Post Holdings, Inc. Stock Equivalents
2025-12-18−170,000.797→ 0 total→ Common Stock (170,000.797 underlying)
Holdings
- 169,369(indirect: By Trust)
Common Stock
- 384,132(indirect: By Spouse)
Common Stock
Footnotes (1)
- [F1]Upon Reporting Person's retirement from the Board of Directors of Post Holdings, Inc. ("Post") on December 16, 2025, the Reporting Person's earned retainers as a Director of Post that were deferred into Post stock equivalents under Post's Deferred Compensation Plan for Non-Management Directors (the "Plan") were converted into cash as soon as administratively practicable following his retirement pursuant to the terms of the Plan. Each stock equivalent was the economic equivalent of one share of Post common stock. The cash will be distributed to the Reporting Person in accordance with the applicable elections previously made by the Reporting Person, including lump sum payout at his retirement, in five annual installments following his retirement and in ten annual installments following his retirement.