MICHELLE RENEE GRIFFIN
CIK 1229765 · CFO · last filed 2026-03-13
MICHELLE RENEE GRIFFIN is a CFO who has filed 51 SEC Form 4 insider transactions across 8 companies since 2007. The most recent filing shows the insider sold $214.1K of ADPT on Mar 13, 2026. Across all open-market trades the lifetime net is −$4.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $275.0K 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.
$275.0K
8
51
-$4.83M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ADPT | Director | 15,625 | $17.60 | $275.0K | -$4.83M | 22 | 2026-03-13 |
| CHINOOK THERAPEUTICS, INC. (KDNY) Delisted | Director | 0 | $40.39 | $0 | $0 | 5 | 2023-08-11 |
| Acer Therapeutics Inc. (ACER) Delisted | Director | — | $0.66 | — | $0 | 5 | 2023-03-16 |
| HTG MOLECULAR DIAGNOSTICS, INC (HTGM) Delisted | Director | 2,500 | $0.48 | $1.2K | $0 | 5 | 2022-09-15 |
| Acer Therapeutics Inc. (ACERW) Delisted | Director | — | — | — | $0 | 1 | 2017-10-06 |
| ACHIEVE LIFE SCIENCES, INC. (OGXI) Delisted | CFO | — | — | — | $0 | 5 | 2012-05-10 |
| Trubion Pharmaceuticals, Inc (TRBN) Delisted | Senior V.P. and C.O.O. | 0 | — | — | $0 | 5 | 2010-10-28 |
| ACHIEVE LIFE SCIENCES, INC. (SNUS) Delisted | Director | — | — | — | $0 | 1 | 2007-05-14 |
Recent Filings
51 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-03-13 | ADPT | Sell (S) | −15,394 | -$214.1K | EDGAR |
| 2026-03-06 | ADPT | Grant (A) | +15,625 | $0 | EDGAR |
| 2026-03-05 | ADPT | Mixed | — | -$543.4K | EDGAR |
| 2025-03-17 | ADPT | Sell (S) | −36,291 | -$260.9K | EDGAR |
| 2025-03-06 | ADPT | Mixed | −270 | -$124.4K | EDGAR |
| 2024-03-06 | ADPT | Grant (A) | +31,328 | $0 | EDGAR |
| 2023-08-11 | CHINOOK THERAPEUTICS, INC. (KDNY) Delisted | Disp (D) | −3,300 | $0 | EDGAR |
| 2023-05-31 | CHINOOK THERAPEUTICS, INC. (KDNY) Delisted | Exer (M) | +3,300 | $0 | EDGAR |
| 2023-03-29 | ADPT | Sell (S) | −2,341 | -$19.9K | EDGAR |
| 2023-03-16 | Acer Therapeutics Inc. (ACER) Delisted | Grant (A) | — | $0 | EDGAR |