Dirk G. Brockstedt
CIK 1635616 · CHIEF SCIENTIFIC OFFICER · last filed 2026-03-05
Dirk G. Brockstedt is a CHIEF SCIENTIFIC OFFICER who has filed 59 SEC Form 4 insider transactions across 2 companies since 2015. Across all open-market trades the lifetime net is −$5.5M, making them a net seller over the disclosed history.
"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.
$0
2
59
-$5.45M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| RAPT Therapeutics, Inc. (RAPT) Delisted | CHIEF SCIENTIFIC OFFICER | 27,820 | $58.01 | $1.61M | -$1.84M | 33 | 2025-06-24 |
| CHINOOK THERAPEUTICS, INC. (ADRO) Delisted | EVP of Research and Dev. | 124,603 | — | — | -$3.62M | 25 | 2018-01-03 |
Recent Filings
59 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-03-05 | — | Mixed | −4,648 | $0 | |
| 2025-06-24 | RAPT Therapeutics, Inc. (RAPT) Delisted | Grant (A) | — | $0 | EDGAR |
| 2025-02-03 | RAPT Therapeutics, Inc. (RAPT) Delisted | Grant (A) | — | $0 | EDGAR |
| 2024-11-15 | RAPT Therapeutics, Inc. (RAPT) Delisted | Mixed | — | $0 | EDGAR |
| 2024-02-01 | RAPT Therapeutics, Inc. (RAPT) Delisted | Grant (A) | — | $0 | EDGAR |
| 2024-01-08 | RAPT Therapeutics, Inc. (RAPT) Delisted | Sell (S) | −898 | -$20.5K | EDGAR |
| 2024-01-02 | RAPT Therapeutics, Inc. (RAPT) Delisted | Exer (M) | +8,000 | $49.4K | EDGAR |
| 2023-02-02 | RAPT Therapeutics, Inc. (RAPT) Delisted | Grant (A) | — | $0 | EDGAR |
| 2023-01-09 | RAPT Therapeutics, Inc. (RAPT) Delisted | Sell (S) | −742 | -$16.3K | EDGAR |
| 2022-05-05 | RAPT Therapeutics, Inc. (RAPT) Delisted | Sell (S) | −720 | -$10.8K | EDGAR |