Michael Mason
CIK 1514291 · EVP, CFO & Treasurer · last filed 2024-09-05
Michael Mason is an EVP, CFO & Treasurer who has filed 54 SEC Form 4 insider transactions across 2 companies since 2011. The most recent filing shows the insider sold $5.1K of KPTI on Sep 5, 2024. Across all open-market trades the lifetime net is −$12.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $4.1M across reported positions.
"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.
$4.07M
2
54
-$12.28M
Holdings By Company
Recent Filings
54 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-09-05 | KPTI | Sell (S) | −7,050 | -$5.1K | EDGAR |
| 2024-06-06 | KPTI | Sell (S) | −652 | -$645 | EDGAR |
| 2024-03-04 | KPTI | Sell (S) | −33,849 | -$39.8K | EDGAR |
| 2024-02-29 | KPTI | Mixed | +185,660 | -$3.4K | EDGAR |
| 2024-02-08 | KPTI | Sell (S) | −4,205 | -$6.7K | EDGAR |
| 2024-01-25 | KPTI | Grant (A) | +13,333 | $0 | EDGAR |
| 2023-09-05 | KPTI | Sell (S) | −6,913 | -$9.2K | EDGAR |
| 2023-06-05 | KPTI | Sell (S) | −631 | -$1.4K | EDGAR |
| 2023-03-02 | KPTI | Mixed | +83,795 | -$33.9K | EDGAR |
| 2023-03-01 | KPTI | Sell (S) | −2,802 | -$8.5K | EDGAR |