Natalie Sacks
CIK 1683811 · Chief Medical Officer · last filed 2026-02-20
"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.
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Disclosed Exposure
$0
Companies
4
Total Filings
36
Lifetime Open-Market Net
-$1.37M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| 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 · Page 2 of 4
36 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2020-05-20 | Harpoon Therapeutics, Inc. (HARP) Delisted | Mixed | — | -$19.3K | EDGAR |
| 2020-05-12 | ZYME | Grant (A) | — | $0 | EDGAR |
| 2020-05-05 | Harpoon Therapeutics, Inc. (HARP) Delisted | Mixed | — | -$58.0K | EDGAR |
| 2020-04-17 | Harpoon Therapeutics, Inc. (HARP) Delisted | Mixed | — | -$15.1K | EDGAR |
| 2020-04-15 | Harpoon Therapeutics, Inc. (HARP) Delisted | Mixed | — | -$45.3K | EDGAR |
| 2020-04-08 | Harpoon Therapeutics, Inc. (HARP) Delisted | Mixed | — | -$12.5K | EDGAR |
| 2020-03-18 | Harpoon Therapeutics, Inc. (HARP) Delisted | Mixed | — | -$15.0K | EDGAR |
| 2020-03-03 | Harpoon Therapeutics, Inc. (HARP) Delisted | Mixed | — | -$73.2K | EDGAR |
| 2020-02-20 | Harpoon Therapeutics, Inc. (HARP) Delisted | Mixed | — | -$19.6K | EDGAR |
| 2020-02-04 | Harpoon Therapeutics, Inc. (HARP) Delisted | Mixed | — | -$68.7K | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.