Natalie Sacks
CIK 1683811 · Chief Medical Officer · last filed 2026-02-20
Natalie Sacks is a Chief Medical Officer who has filed 36 SEC Form 4 insider transactions across 4 companies since 2016. The most recent filing, for CRBU, was dated Feb 20, 2026. Across all open-market trades the lifetime net is −$1.4M, 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
4
36
-$1.37M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CRBU | Director | — | $1.59 | — | $0 | 5 | 2026-02-20 |
| ZYME | Director | — | $22.88 | — | $0 | 4 | 2022-12-23 |
| Harpoon Therapeutics, Inc. (HARP) Delisted | Chief Medical Officer | 45,754 | $23.01 | $1.05M | -$1.27M | 19 | 2022-02-01 |
| CHINOOK THERAPEUTICS, INC. (ADRO) Delisted | Chief Medical Officer | 173,720 | — | — | -$109.0K | 8 | 2018-09-14 |
Recent Filings
36 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-02-20 | CRBU | Grant (A) | — | $0 | EDGAR |
| 2025-02-21 | CRBU | Grant (A) | — | $0 | EDGAR |
| 2024-02-22 | CRBU | Grant (A) | — | $0 | EDGAR |
| 2023-02-23 | CRBU | Grant (A) | — | $0 | EDGAR |
| 2022-12-23 | ZYME | Grant (A) | — | $0 | EDGAR |
| 2022-02-01 | Harpoon Therapeutics, Inc. (HARP) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-12-21 | CRBU | Grant (A) | — | $0 | EDGAR |
| 2021-11-15 | Harpoon Therapeutics, Inc. (HARP) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-05-07 | ZYME | Grant (A) | — | $0 | EDGAR |
| 2021-01-29 | Harpoon Therapeutics, Inc. (HARP) Delisted | Grant (A) | — | $0 | EDGAR |