Insider Ledger
Post Holdings, Inc. (POST) insider buying and SEC filings
Post Holdings, Inc. · CIK 1530950
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- NYSE
- Industry (SIC)
- Grain Mill Products
- State of incorporation
- MO
- Fiscal year end
- Sep 30
Insider activity in the last 12 months
Bought
$176K
Insiders who bought
1
Sold (not marked 10b5-1)
$34.9M
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Sep 1–2, 2026 | Sale | William P. Stiritz (Chairman Emeritus) sold 384,132 shares indirectly (by spouse) between Sep 1 and Sep 2 at about $84.06 ($32.3M). Holdings by spouse down 100% to 0 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 3, 2026 |
| May 13, 2026 | Sale | Gregory L. Curl (Director) sold 6,186 shares at $105.05 ($650K). Holdings down 29% to 15,107 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 14, 2026 |
| Feb 9, 2026 | Sale | Gregory L. Curl (Director) sold 6,983 shares at about $114.31 ($798K). Holdings down 25% to 21,293 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 10, 2026 |
| Dec 5, 2025 | Sale | Bradly A. Harper (SVP, Chief Accting Officer) sold 1,658 shares at $96.69 ($160K). Holdings down 13% to 11,441 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 8, 2025 |
| Nov 25, 2025 | Sale | Nicolas Catoggio (CEO) sold 10,000 shares at about $100.21 ($1.0M). Holdings down 12% to 75,542 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 26, 2025 |
| Nov 24, 2025 | Purchase (code P) | David W. Kemper (Director) bought 1,800 shares at $97.93 ($176K), reported as a purchase (code P). Holdings up 6% to 31,522 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 25, 2025 |
137 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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