David W Kemper
CIK 924750 · Executive Chairman · last filed 2026-10-02
David W Kemper is an Executive Chairman who has filed 481 SEC Form 4 insider transactions across 5 companies since 2007. The most recent filing, for POST, was dated Oct 2, 2026. Across all open-market trades the lifetime net is −$186.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $5.2M across reported positions. 143 SEC filings were submitted jointly with Post Holdings, Inc.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
CBSH price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
KANSAS CITY, MO 64141-6248
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| POST | Director | 33,122 | $78.53 | $2.60M | $96.8K | 142 | 2026-10-02 |
| CBSH | Executive Chairman | 47,154 | $55.69 | $2.63M | -$156.17M | 174 | 2026-09-24 |
| COMMERCE BANCSHARES INC /MO/ (CBSHP) Delisted | Director | 1,157,932 | — | — | -$21.18M | 49 | 2020-06-24 |
| COMMERCE BANCSHARES INC /MO/ (CBSH.P) Delisted | Chairman of the Board, CEO | 1,570,055 | — | — | -$6.05M | 26 | 2016-05-17 |
| RALCORP HOLDINGS INC /MO (RAH) Delisted | Director | 28,706 | — | — | -$2.93M | 84 | 2013-01-29 |
Recent Filings
481 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-10-02 | POST | Grant (A) | — | $0 | EDGAR |
| 2026-09-24 | CBSH | Grant (A) | +128 | $7.3K | EDGAR |
| 2026-09-02 | POST | Grant (A) | — | $0 | EDGAR |
| 2026-08-04 | POST | Grant (A) | — | $0 | EDGAR |
| 2026-07-02 | POST | Grant (A) | — | $0 | EDGAR |
| 2026-06-25 | CBSH | Grant (A) | +131 | $7.2K | EDGAR |
| 2026-06-02 | POST | Grant (A) | — | $0 | EDGAR |
| 2026-05-04 | POST | Grant (A) | — | $0 | EDGAR |
| 2026-04-02 | POST | Grant (A) | — | $0 | EDGAR |
| 2026-03-26 | CBSH | Grant (A) | +150 | $7.2K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.