Jon Marc Wigginton
CIK 1587487 · Chief Medical Officer · last filed 2026-06-09
Jon Marc Wigginton is a Chief Medical Officer who has filed 38 SEC Form 4 insider transactions across 4 companies since 2014. The most recent filing, for STRO, was dated Jun 9, 2026. Across all open-market trades the lifetime net is −$4.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $75.0K 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.
$75.0K
4
38
-$4.09M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| STRO | Director | — | $28.80 | — | $0 | 8 | 2026-06-09 |
| Checkmate Pharmaceuticals, Inc. (CMPI) Delisted | Director | — | $10.50 | — | $0 | 2 | 2022-05-31 |
| CGEM | Chief Medical Officer | — | $13.70 | — | $0 | 1 | 2021-01-11 |
| MGNX | Sr VP, Clinical Dev. & CMO | 18,930 | $3.96 | $75.0K | -$4.09M | 27 | 2020-02-24 |
Recent Filings
38 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-09 | STRO | Grant (A) | — | $0 | EDGAR |
| 2025-12-29 | STRO | Grant (A) | — | $0 | EDGAR |
| 2025-06-10 | STRO | Grant (A) | — | $0 | EDGAR |
| 2024-06-10 | STRO | Grant (A) | — | $0 | EDGAR |
| 2023-06-12 | STRO | Grant (A) | — | $0 | EDGAR |
| 2022-06-08 | STRO | Grant (A) | — | $0 | EDGAR |
| 2022-05-31 | Checkmate Pharmaceuticals, Inc. (CMPI) Delisted | Disp (D) | — | $0 | EDGAR |
| 2022-02-01 | Checkmate Pharmaceuticals, Inc. (CMPI) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-06-07 | STRO | Grant (A) | — | $0 | EDGAR |
| 2021-01-11 | CGEM | Grant (A) | — | $0 | EDGAR |