Post Holdings, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| GRAY DIEDRE J | EVP, GC & CAO, SECY | Gift | 131,187 | — | — | 33,716 | Dec 26, 2025 |
| STIRITZ WILLIAM P | — | Option Exercise | 170,001 | — | — | 4,504,668 | Dec 17, 2025 |
| HARPER BRADLY A | SVP, CHIEF ACCTING OFFICER | Sale | 1,658 | $96.69 | $160,312 | 11,441 | Dec 5, 2025 |
| MAINER MATTHEW J | EVP, CFO & TREASURER | Gift | 600 | — | — | 74,670 | Dec 4, 2025 |
| Zadoks Jeff A | EVP & COO | Gift | 30,000 | — | — | 152,740 | Dec 1, 2025 |
| MAINER MATTHEW J | EVP, CFO & TREASURER | Tax Withholding | 269 | $104.03 | $27,984 | 75,270 | Dec 1, 2025 |
| HARPER BRADLY A | SVP, CHIEF ACCTING OFFICER | Tax Withholding | 200 | $104.03 | $20,806 | 13,099 | Dec 1, 2025 |
| GRAY DIEDRE J | EVP, GC & CAO, SECY | Other | 40,974 | — | — | 164,903 | Dec 1, 2025 |
| CATOGGIO NICOLAS | PRES & CEO, PCB | Sale | 10,000 | $100.21 | $1,002,100 | 75,542 | Nov 25, 2025 |
| KEMPER DAVID W | — | Purchase | 1,800 | $97.93 | $176,274 | 31,522 | Nov 24, 2025 |
| Zadoks Jeff A | EVP & COO | Award / Grant | 8,935 | — | — | 57,725 | Nov 18, 2025 |
| WESTPHAL MARK W | PRES., FOODSERVICE | Award / Grant | 3,243 | — | — | 197,756 | Nov 18, 2025 |
| VITALE ROBERT V | PRESIDENT & CEO | Award / Grant | 45,367 | — | — | 964,927 | Nov 18, 2025 |
| MAINER MATTHEW J | EVP, CFO & TREASURER | Award / Grant | 17,338 | — | — | 67,416 | Nov 18, 2025 |
| HARPER BRADLY A | SVP, CHIEF ACCTING OFFICER | Award / Grant | 3,983 | — | — | 12,641 | Nov 18, 2025 |
| GRAY DIEDRE J | EVP, GC & CAO, SECY | Award / Grant | 8,123 | — | — | 72,860 | Nov 18, 2025 |
| CATOGGIO NICOLAS | PRES & CEO, PCB | Award / Grant | 3,483 | — | — | 85,542 | Nov 18, 2025 |
| VITALE ROBERT V | PRESIDENT & CEO | Tax Withholding | 8,237 | $106.34 | $875,923 | 927,597 | Nov 15, 2025 |
| CATOGGIO NICOLAS | PRES & CEO, PCB | Tax Withholding | 2,938 | $106.34 | $312,427 | 61,333 | Nov 15, 2025 |
| Zadoks Jeff A | EVP & COO | Tax Withholding | 2,752 | $106.70 | $293,638 | 48,790 | Nov 14, 2025 |
| WESTPHAL MARK W | PRES., FOODSERVICE | Tax Withholding | 2,521 | $106.70 | $268,991 | 177,831 | Nov 14, 2025 |
| MAINER MATTHEW J | EVP, CFO & TREASURER | Tax Withholding | 937 | $106.70 | $99,978 | 50,078 | Nov 14, 2025 |
| HARPER BRADLY A | SVP, CHIEF ACCTING OFFICER | Tax Withholding | 299 | $106.70 | $31,903 | 8,415 | Nov 14, 2025 |
| GRAY DIEDRE J | EVP, GC & CAO, SECY | Tax Withholding | 2,647 | $106.70 | $282,435 | 47,633 | Nov 14, 2025 |
| Zadoks Jeff A | EVP & COO | Tax Withholding | 2,144 | $106.02 | $227,307 | 54,362 | Nov 12, 2025 |
| WESTPHAL MARK W | PRES., FOODSERVICE | Tax Withholding | 1,413 | $106.02 | $149,806 | 180,521 | Nov 12, 2025 |
| VITALE ROBERT V | PRESIDENT & CEO | Tax Withholding | 6,424 | $106.02 | $681,072 | 935,834 | Nov 12, 2025 |
| MAINER MATTHEW J | EVP, CFO & TREASURER | Tax Withholding | 2,647 | $106.02 | $280,635 | 50,073 | Nov 12, 2025 |
| HARPER BRADLY A | SVP, CHIEF ACCTING OFFICER | Tax Withholding | 564 | $106.02 | $59,795 | 9,457 | Nov 12, 2025 |
| GRAY DIEDRE J | EVP, GC & CAO, SECY | Tax Withholding | 2,389 | $106.02 | $253,282 | 53,214 | Nov 12, 2025 |
| CATOGGIO NICOLAS | PRES & CEO, PCB | Option Exercise | 5,281 | — | — | 66,680 | Nov 12, 2025 |
| Zadoks Jeff A | EVP & COO | Tax Withholding | 21,461 | $107.19 | $2,300,405 | 46,305 | Oct 22, 2025 |
| WESTPHAL MARK W | PRES., FOODSERVICE | Award / Grant | 43,108 | — | — | 198,495 | Oct 22, 2025 |
| VITALE ROBERT V | PRESIDENT & CEO | Tax Withholding | 62,687 | $107.19 | $6,719,420 | 914,681 | Oct 22, 2025 |
| MAINER MATTHEW J | EVP, CFO & TREASURER | Tax Withholding | 7,308 | $107.19 | $783,345 | 46,712 | Oct 22, 2025 |
| GRAY DIEDRE J | EVP, GC & CAO, SECY | Award / Grant | 46,852 | — | — | 66,177 | Oct 22, 2025 |
| CATOGGIO NICOLAS | PRES & CEO, PCB | Award / Grant | 40,723 | — | — | 78,160 | Oct 22, 2025 |
| CATOGGIO NICOLAS | PRES & CEO, PCB | Tax Withholding | 6,314 | $104.98 | $662,844 | 37,437 | Sep 13, 2025 |
| Zadoks Jeff A | EVP & COO | Gift | 1,330 | — | — | 1,256 | Sep 4, 2025 |
| GRAY DIEDRE J | EVP, GC & CAO, SECY | Gift | 1,125 | — | — | 123,929 | Aug 29, 2025 |
| STIRITZ WILLIAM P | — | Purchase | 36,000 | $109.53 | $3,943,080 | 4,334,667 | Aug 19, 2025 |
| VITALE ROBERT V | PRESIDENT & CEO | Gift | 465 | — | — | 836,734 | Aug 15, 2025 |
| STIRITZ WILLIAM P | — | Purchase | 186,740 | $109.12 | $20,377,069 | 4,298,667 | Jun 5, 2025 |
| CATOGGIO NICOLAS | PRES & CEO, PCB | Sale | 1,750 | $108.97 | $190,698 | 43,751 | Jun 5, 2025 |
| CATOGGIO NICOLAS | PRES & CEO, PCB | Sale | 5,000 | $117.00 | $585,000 | 45,501 | Mar 7, 2025 |
| HARPER BRADLY A | SVP, CHIEF ACCTING OFFICER | Sale | 2,000 | $114.59 | $229,180 | 8,741 | Mar 4, 2025 |
| CATOGGIO NICOLAS | PRES & CEO, PCB | Sale | 5,000 | $114.50 | $572,500 | 50,501 | Mar 3, 2025 |
| CATOGGIO NICOLAS | PRES & CEO, PCB | Sale | 5,000 | $116.50 | $582,500 | 55,501 | Feb 25, 2025 |
| VITALE ROBERT V | PRESIDENT & CEO | Sale | 3,729 | $116.55 | $434,615 | 837,199 | Feb 25, 2025 |
| GRAY DIEDRE J | EVP, GC & CAO, SECY | Sale | 15,157 | $115.80 | $1,755,181 | 19,325 | Feb 21, 2025 |