Mark Stanley Berger
CIK 1700283 · Chief Medical Officer · last filed 2026-02-27
Mark Stanley Berger is a Chief Medical Officer who has filed 16 SEC Form 4 insider transactions across 2 companies since 2017. The most recent filing shows the insider had shares withheld for taxes covering $14.3K of GNPX on Feb 27, 2026. Across all open-market trades the lifetime net is +$5.6K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $36.6K 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.
$36.6K
2
16
$5.6K
Holdings By Company
Recent Filings
16 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-02-27 | GNPX | Tax (F) | −7,168 | -$14.3K | EDGAR |
| 2025-12-23 | GNPX | Grant (A) | +28,500 | $0 | EDGAR |
| 2025-07-01 | GNPX | Tax (F) | −4,500 | -$1.0K | EDGAR |
| 2025-02-19 | GNPX | Tax (F) | −585 | -$240 | EDGAR |
| 2024-12-06 | GNPX | Grant (A) | +18,250 | $0 | EDGAR |
| 2024-02-21 | GNPX | Tax (F) | −1,319 | -$5.8K | EDGAR |
| 2023-02-22 | GNPX | Grant (A) | +245,000 | $0 | EDGAR |
| 2022-02-08 | GNPX | Grant (A) | — | $0 | EDGAR |
| 2021-09-28 | GNPX | Grant (A) | — | $0 | EDGAR |
| 2021-09-03 | ATNM | Grant (A) | — | $0 | EDGAR |