POST insider trading — Post Holdings, Inc.
Over the last 90 days, insiders at Post Holdings, Inc. (POST) made 0 open-market purchases worth $0 and 2 open-market sales worth $32.29M, making them net sellers by $32.29M. The largest sale was by Stiritz William P (-), who sold 277,935 shares for $23.41M on Sep 2, 2026.
Updated Oct 16, 2026.
Recent POST insider transactions
Every Form 4 filed by Post Holdings, Inc. officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 2, 2026 | Stiritz William P | - | S · Sale | Indirect | 277,935 | $84.23 | $23.41M | Form 4 |
| Sep 1, 2026 | Stiritz William P | - | S · Sale | Indirect | 106,197 | $83.60 | $8.88M | Form 4 |
| Aug 25, 2026 | Zadoks Jeff A | Director | G · Gift | Direct | 26,215 | — | — | Form 4 |
| Aug 25, 2026 | Zadoks Jeff A | Director | G · Gift | Indirect | 148,955 | — | — | Form 4 |
| Aug 25, 2026 | Zadoks Jeff A | Director | G · Gift | Indirect | 122,740 | — | — | Form 4 |
POST insider trading FAQ
Are insiders buying POST stock?
Not on the open market. In the last 90 days, Post Holdings, Inc. insiders made no open-market purchases, and 2 open-market sales totaling $32.29M. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading POST?
Recent sellers: Stiritz William P.
Where does POST insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.