Form 4 for POST Post Holdings, Inc.
Accepted 2025-12-19 00:00:00 ET · period of report 2025-12-17 · accession 0001052058-25-000020 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2025-12-19 | 2025-12-17+ | POST | STIRITZ WILLIAM P | COB Emeritus | M - OptEx | — | +180.7K | 4.50M | +4% | — |
| DM | 2025-12-19 | 2025-12-17+ | POST | STIRITZ WILLIAM P | COB Emeritus | D - Sale to Iss | $101.77 | -180.7K | 4.33M | -4% | -$18.39M |
| DM | 2025-12-19 | 2025-12-17+ | POST | STIRITZ WILLIAM P | COB Emeritus | M - OptEx | — | -180.7K | 0 | -100% | — |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2025-12-17 | M | A | 10,703.23 | — | 4,345,370.23 | D | — | — | (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. |
| 2 | Common | Common Stock | 2025-12-17 | D | D | 10,703.23 | $101.19 | 4,334,667 | D | — | — | (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. |
| 3 | Common | Common Stock | 2025-12-18 | D | D | 170,000.80 | $101.81 | 4,334,667 | D | — | — | (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. |
| 4 | Common | Common Stock | 2025-12-18 | M | A | 170,000.80 | — | 4,504,667.80 | D | — | — | (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. |
| 5 | Derivative | Post Holdings, Inc. Stock Equivalents | 2025-12-17 | M | D | 10,703.23 | — | 170,000.80 | D | — · — to — | 10,703.23 Common Stock | (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. |
| 6 | Derivative | Post Holdings, Inc. Stock Equivalents | 2025-12-18 | M | D | 170,000.80 | — | 0 | D | — · — to — | 170,000.80 Common Stock | (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. |