Updated Jul 16, 2026 · Last SEC filing 2026-07-07
Post Holdings, Inc. (POST) has filed 26 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-07. 1 Form 8-K material event filings were reported by POST in the last 90 days. 1 Form 144 notices of proposed sale were filed for POST stock. InsiderAlpha tracks every POST SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Grain Mill Products (SIC 2040) |
|---|---|
| SEC CIK | 0001530950 |
| Form 4 filings (90d) | 26 |
|---|---|
| Form 8-K filings (90d) | 1 |
| Form 144 notices (90d) | 1 |
| Latest Form 4 filing | 2026-07-07 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Zadoks Jeff A | Director | F — Tax withholding / forfeiture | 3.6K | $90.94 | $323K | SEC | |
| Zadoks Jeff A | Director | F — Tax withholding / forfeiture | 3.9K | $90.94 | $352K | SEC | |
| Zadoks Jeff A | Director | F — Tax withholding / forfeiture | 2.5K | $90.94 | $231K | SEC | |
| CURL GREGORY L | Director | S — Open-market sale | 6.2K | $105.05 | $650K | SEC | |
| Pearson Gregory Carl | PRES & CEO, PCB | A — Grant or award | 5.9K | $0.00 | — | SEC | |
| Pearson Gregory Carl | PRES & CEO, PCB | A — Grant or award | 2.6K | $0.00 | — | SEC | |
| Atkinson Michelle Marie | Director | A — Grant or award | 1.7K | $0.00 | — | SEC | |
| Zadoks Jeff A | Director | A — Grant or award | 1.7K | $0.00 | — | SEC | |
| CURL GREGORY L | Director | S — Open-market sale | 7.0K | $114.31 | $798K | SEC | |
| KEMPER DAVID W | Director | A — Grant or award | 1.6K | $0.00 | — | SEC | |
| JOHNSON JENNIFER KUPERMAN | Director | A — Grant or award | 1.6K | $0.00 | — | SEC | |
| ERB THOMAS C | Director | A — Grant or award | 1.6K | $0.00 | — | SEC | |
| BURWELL DOROTHY M | Director | A — Grant or award | 1.6K | $0.00 | — | SEC | |
| SKARIE DAVID P | Director | A — Grant or award | 1.6K | $0.00 | — | SEC | |
| CURL GREGORY L | Director | A — Grant or award | 1.6K | $0.00 | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Post Holdings, Inc. (POST). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Zadoks Jeff A | 6 | $939K |
| CURL GREGORY L | 4 | $683K |
| JOHNSON JENNIFER KUPERMAN | 3 | $33K |
| BURWELL DOROTHY M | 3 | $33K |
| ERB THOMAS C | 3 | $33K |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in POST insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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