Day One Biopharmaceuticals, Inc. (DAWN) has 115 open-market insider trades by 21 insiders since 2021. The most active filer is Jeremy Bender, CEO.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Julie Papanek Grant | Dir | — | 10 | $47.6M | 2023-03-01 |
| Len Blavatnik | 10% Owner | — | 2 | $28.0M | 2023-06-09 |
| Access Industries Management, LLC | 10% Owner | — | 1 | $26.1M | 2023-10-20 |
| Access Industries Holdings LLC | 10% Owner | — | 1 | $14.0M | 2024-08-01 |
| Michael Gladstone | Dir | — | 1 | $11.5M | 2022-06-17 |
| Canaan XI L.P. | 10% Owner | — | 1 | $11.4M | 2022-09-21 |
| Canaan Partners XI LLC | 10% Owner | — | 2 | $9.9M | 2022-09-20 |
| Takeda Pharmaceutical Co. Ltd. | 10% Owner | — | 1 | $9.9M | 2021-12-08 |
| Jeremy Bender | CEO | — | 24 | $4.6M | 2026-02-17 |
| Atlas Venture Associates XI, LLC | 10% Owner | — | 1 | $4.0M | 2021-06-01 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| Lauren Merendino | CCO | Sell | $67K | 2026-02-17 |
| Adam Dubow | Secretary | Sell | $74K | 2026-02-17 |
| Michael Vasconcelles | — | Sell | $32K | 2026-02-17 |
| Jeremy Bender | CEO | Sell | $179K | 2026-02-17 |
| Charles N. York II | COO & CFO | Sell | $70K | 2026-02-17 |
| Charles N. York II | COO and CFO | Sell | $36K | 2025-11-17 |
Companies that share insiders with DAWN, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| Adam Dubow | Secretary | Sell | $38K | 2025-11-17 |
| Jeremy Bender | CEO | Sell | $283K | 2025-11-17 |
| Lauren Merendino | Chief Commercial Officer | Sell | $33K | 2025-11-17 |
| Adam Dubow | Secretary | Sell | $30K | 2025-08-18 |
| Charles N. York II | COO and CFO | Sell | $28K | 2025-08-18 |
| Lauren Merendino | Chief Commercial Officer | Sell | $25K | 2025-08-18 |
| Jeremy Bender | CEO | Sell | $217K | 2025-08-18 |
| Jeremy Bender | CEO | Sell | $175K | 2025-05-16 |
| Lauren Merendino | Chief Commercial Officer | Sell | $25K | 2025-05-16 |