George Bickerstaff
CIK 1329646 · last filed 2025-09-12
George Bickerstaff is a corporate insider who has filed 87 SEC Form 4 insider transactions across 6 companies since 2007. The most recent filing shows the insider exercised options covering $231.9K of CDNA on Sep 12, 2025. Across all open-market trades the lifetime net is −$3.0M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $6.4M 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.
$6.44M
6
87
-$2.98M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CDNA | Director | 144,266 | $22.97 | $3.31M | -$3.72M | 64 | 2025-09-12 |
| INVA | Director | 137,207 | $22.74 | $3.12M | $651.7K | 9 | 2022-04-27 |
| INO | Director | 4,090 | $1.10 | $4.5K | $0 | 3 | 2018-03-22 |
| ARIAD PHARMACEUTICALS INC (ARIA) Delisted | Director | 0 | — | — | $0 | 3 | 2017-02-16 |
| BMP Sunstone CORP (BJGP) Delisted | Director | — | — | — | $0 | 1 | 2008-04-30 |
| VION PHARMACEUTICALS INC (VION) Delisted | Director | 85,535 | — | — | $87.8K | 2 | 2007-06-28 |
Recent Filings
87 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-09-12 | CDNA | Exer (M) | +29,136 | $231.9K | EDGAR |
| 2025-06-17 | CDNA | Grant (A) | +12,103 | $0 | EDGAR |
| 2025-03-12 | CDNA | Sell (S) | −20,000 | -$367.1K | EDGAR |
| 2024-11-05 | CDNA | Exer (M) | +7,481 | $43.0K | EDGAR |
| 2024-06-20 | CDNA | Grant (A) | — | $0 | EDGAR |
| 2024-06-18 | CDNA | Grant (A) | +10,570 | $0 | EDGAR |
| 2024-05-16 | CDNA | Exer (M) | +5,255 | $52.5K | EDGAR |
| 2023-08-11 | CDNA | Exer (M) | +19,453 | $99.1K | EDGAR |
| 2023-06-21 | CDNA | Grant (A) | +18,844 | $0 | EDGAR |
| 2023-01-09 | CDNA | Grant (A) | +1,323 | $0 | EDGAR |