Mark Chin
CIK 1734389 · last filed 2025-06-13
"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.
Loading insider history…
Disclosed Exposure
$40.01M
Companies
5
Total Filings
41
Lifetime Open-Market Net
$15.77M
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 |
|---|---|---|---|---|---|---|---|
| IRON | Director | — | $67.99 | — | $0 | 3 | 2025-06-13 |
| Harpoon Therapeutics, Inc. (HARP) Delisted | Director | 2,572,359 | $23.01 | $59.19M | $352.3K | 16 | 2024-03-11 |
| Iterum Therapeutics plc (ITRM) Delisted | Director | 18,306 | $0.03 | $549 | $4.74M | 13 | 2023-06-15 |
| IMRA | Director | 2,344,072 | $17.02 | $39.89M | $11.00M | 4 | 2022-06-03 |
| PYXS | Director | 66,831 | $1.76 | $117.6K | -$324.6K | 4 | 2022-04-25 |
Recent Filings · Page 3 of 5
41 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-07-28 | IMRA | Buy (P) | +1,333,333 | $8.00M | EDGAR |
| 2021-06-30 | IMRA | Grant (A) | — | $0 | EDGAR |
| 2021-06-25 | Iterum Therapeutics plc (ITRM) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-05-14 | Harpoon Therapeutics, Inc. (HARP) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-05-07 | Harpoon Therapeutics, Inc. (HARP) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-03-03 | Iterum Therapeutics plc (ITRM) Delisted | Other (J) | −11,857 | $0 | EDGAR |
| 2020-07-02 | Iterum Therapeutics plc (ITRM) Delisted | Exer (M) | +5,703 | $0 | EDGAR |
| 2020-06-01 | Harpoon Therapeutics, Inc. (HARP) Delisted | Grant (A) | — | $0 | EDGAR |
| 2020-04-09 | Iterum Therapeutics plc (ITRM) Delisted | Other (J) | −1,089,903 | $0 | EDGAR |
| 2020-03-16 | IMRA | Mixed | +1,554,558 | $3.00M | 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.