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- Ownership
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Day One Biopharmaceuticals, Inc. Insider Trading
* In original currency USD
Loading Data
| Transaction Date (SEC Report) |
Reporting Name | Relationship | Shrs. Owned | Type | Acq./Disp. | Shrs. Transacted | Price | Total Amount |
|---|---|---|---|---|---|---|---|---|
| Tuesday, November 25th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 1,108,285 | G-Gift | D | 300,000 | 0.00 USD | 0 USD |
| Tuesday, November 25th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 808,285 | G-Gift | D | 300,000 | 0.00 USD | 0 USD |
| Tuesday, November 25th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 300,000 | G-Gift | A | 300,000 | 0.00 USD | 0 USD |
| Tuesday, November 25th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 7,225 | G-Gift | D | 7,225 | 0.00 USD | 0 USD |
| Tuesday, November 25th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 0 | G-Gift | D | 7,225 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Dubow Adam | officer: Gen Counsel & Secretary | 66,945 | M-Exempt | A | 3,687 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Dubow Adam | officer: Gen Counsel & Secretary | 63,258 | M-Exempt | A | 3,687 | 0.00 USD | 0 USD |
| Monday, November 17th, 2025 | Dubow Adam | officer: Gen Counsel & Secretary | 62,626 | S-Sale | D | 4,319 | 8.91 USD | 38,503 USD |
| Saturday, November 15th, 2025 | Dubow Adam | officer: Gen Counsel & Secretary | 59,571 | M-Exempt | A | 1,750 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Dubow Adam | officer: Gen Counsel & Secretary | 57,821 | M-Exempt | A | 2,963 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Dubow Adam | officer: Gen Counsel & Secretary | 44,252 | M-Exempt | D | 3,687 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Dubow Adam | officer: Gen Counsel & Secretary | 29,504 | M-Exempt | D | 3,687 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Dubow Adam | officer: Gen Counsel & Secretary | 11,852 | M-Exempt | D | 2,963 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Dubow Adam | officer: Gen Counsel & Secretary | 7,000 | M-Exempt | D | 1,750 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | York Charles N II | officer: COO and CFO | 298,777 | M-Exempt | A | 6,625 | 0.00 USD | 0 USD |
| Monday, November 17th, 2025 | York Charles N II | officer: COO and CFO | 294,715 | S-Sale | D | 4,062 | 8.91 USD | 36,212 USD |
| Saturday, November 15th, 2025 | York Charles N II | officer: COO and CFO | 292,152 | M-Exempt | A | 6,625 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | York Charles N II | officer: COO and CFO | 285,527 | M-Exempt | A | 2,250 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | York Charles N II | officer: COO and CFO | 283,277 | M-Exempt | A | 1,375 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | York Charles N II | officer: COO and CFO | 79,500 | M-Exempt | D | 6,625 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | York Charles N II | officer: COO and CFO | 53,000 | M-Exempt | D | 6,625 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | York Charles N II | officer: COO and CFO | 9,000 | M-Exempt | D | 2,250 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | York Charles N II | officer: COO and CFO | 0 | M-Exempt | D | 1,375 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Merendino Lauren | officer: Chief Commercial Officer | 54,535 | M-Exempt | A | 3,687 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Merendino Lauren | officer: Chief Commercial Officer | 50,848 | M-Exempt | A | 3,687 | 0.00 USD | 0 USD |
| Monday, November 17th, 2025 | Merendino Lauren | officer: Chief Commercial Officer | 50,809 | S-Sale | D | 3,726 | 8.91 USD | 33,216 USD |
| Saturday, November 15th, 2025 | Merendino Lauren | officer: Chief Commercial Officer | 47,161 | M-Exempt | A | 3,162 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Merendino Lauren | officer: Chief Commercial Officer | 44,252 | M-Exempt | D | 3,687 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Merendino Lauren | officer: Chief Commercial Officer | 29,504 | M-Exempt | D | 3,687 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Merendino Lauren | officer: Chief Commercial Officer | 22,140 | M-Exempt | D | 3,162 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 193,059 | M-Exempt | A | 11,687 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 181,372 | M-Exempt | A | 11,687 | 0.00 USD | 0 USD |
| Monday, November 17th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 177,165 | S-Sale | D | 15,894 | 8.91 USD | 141,690 USD |
| Saturday, November 15th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 169,685 | M-Exempt | A | 4,750 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 164,935 | M-Exempt | A | 3,570 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 140,252 | M-Exempt | D | 11,687 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 93,504 | M-Exempt | D | 11,687 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 19,000 | M-Exempt | D | 4,750 | 0.00 USD | 0 USD |
| Saturday, November 15th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 0 | M-Exempt | D | 3,570 | 0.00 USD | 0 USD |
| Thursday, November 6th, 2025 | Dable Habib J | director | 66,660 | A-Award | A | 66,660 | 8.99 USD | 599,273 USD |
| Thursday, November 6th, 2025 | Dable Habib J | director | 32,335 | A-Award | A | 32,335 | 8.99 USD | 290,692 USD |
| Thursday, November 6th, 2025 | Dable Habib J | director | 0 | D-Return | D | 32,335 | 13.87 USD | 448,486 USD |
| Thursday, November 6th, 2025 | Dable Habib J | director | 0 | D-Return | D | 66,660 | 13.81 USD | 920,575 USD |
| Thursday, November 6th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 1,463,134 | A-Award | A | 1,463,134 | 8.99 USD | 13,153,575 USD |
| Thursday, November 6th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 397,000 | A-Award | A | 397,000 | 8.99 USD | 3,569,030 USD |
| Thursday, November 6th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 286,000 | A-Award | A | 286,000 | 8.99 USD | 2,571,140 USD |
| Thursday, November 6th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 244,000 | A-Award | A | 244,000 | 8.99 USD | 2,193,560 USD |
| Thursday, November 6th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 0 | D-Return | D | 1,463,134 | 16.00 USD | 23,410,144 USD |
| Thursday, November 6th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 0 | D-Return | D | 397,000 | 14.26 USD | 5,661,220 USD |
| Thursday, November 6th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 0 | D-Return | D | 286,000 | 14.44 USD | 4,129,840 USD |
| Thursday, November 6th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 0 | D-Return | D | 286,000 | 11.87 USD | 3,394,820 USD |
| Thursday, November 6th, 2025 | Bender Jeremy | director, officer: CHIEF EXECUTIVE OFFICER | 0 | D-Return | D | 244,000 | 23.41 USD | 5,712,040 USD |
| Thursday, November 6th, 2025 | Josey John A. | director | 63,000 | A-Award | A | 63,000 | 8.99 USD | 566,370 USD |
| Thursday, November 6th, 2025 | Josey John A. | director | 37,500 | A-Award | A | 37,500 | 8.99 USD | 337,125 USD |
| Thursday, November 6th, 2025 | Josey John A. | director | 32,335 | A-Award | A | 32,335 | 8.99 USD | 290,692 USD |
| Thursday, November 6th, 2025 | Josey John A. | director | 28,700 | A-Award | A | 28,700 | 8.99 USD | 258,013 USD |
| Thursday, November 6th, 2025 | Josey John A. | director | 1,181 | A-Award | A | 1,181 | 8.99 USD | 10,617 USD |
| Thursday, November 6th, 2025 | Josey John A. | director | 0 | D-Return | D | 37,500 | 12.69 USD | 475,875 USD |
| Thursday, November 6th, 2025 | Josey John A. | director | 0 | D-Return | D | 1,181 | 16.00 USD | 18,896 USD |
| Thursday, November 6th, 2025 | Josey John A. | director | 0 | D-Return | D | 28,700 | 16.29 USD | 467,523 USD |
| Thursday, November 6th, 2025 | Josey John A. | director | 0 | D-Return | D | 32,335 | 13.87 USD | 448,486 USD |
| Thursday, November 6th, 2025 | Holles Natalie C. | director | 40,300 | A-Award | A | 40,300 | 8.99 USD | 362,297 USD |
| Thursday, November 6th, 2025 | Holles Natalie C. | director | 40,000 | A-Award | A | 40,000 | 8.99 USD | 359,600 USD |
| Thursday, November 6th, 2025 | Holles Natalie C. | director | 37,500 | A-Award | A | 37,500 | 8.99 USD | 337,125 USD |
| Thursday, November 6th, 2025 | Holles Natalie C. | director | 32,335 | A-Award | A | 32,335 | 8.99 USD | 290,692 USD |
| Thursday, November 6th, 2025 | Holles Natalie C. | director | 28,700 | A-Award | A | 28,700 | 8.99 USD | 258,013 USD |
| Thursday, November 6th, 2025 | Holles Natalie C. | director | 0 | D-Return | D | 40,300 | 16.00 USD | 644,800 USD |
| Thursday, November 6th, 2025 | Holles Natalie C. | director | 0 | D-Return | D | 28,700 | 16.29 USD | 467,523 USD |
| Thursday, November 6th, 2025 | Holles Natalie C. | director | 0 | D-Return | D | 37,500 | 12.69 USD | 475,875 USD |
| Thursday, November 6th, 2025 | Holles Natalie C. | director | 0 | D-Return | D | 32,335 | 13.87 USD | 448,486 USD |
| Thursday, November 6th, 2025 | Nicholson Garry A | director | 37,500 | A-Award | A | 37,500 | 8.99 USD | 337,125 USD |
| Thursday, November 6th, 2025 | Nicholson Garry A | director | 33,900 | A-Award | A | 33,900 | 8.99 USD | 304,761 USD |
| Thursday, November 6th, 2025 | Nicholson Garry A | director | 32,335 | A-Award | A | 32,335 | 8.99 USD | 290,692 USD |
| Thursday, November 6th, 2025 | Nicholson Garry A | director | 0 | D-Return | D | 33,900 | 25.84 USD | 875,976 USD |
| Thursday, November 6th, 2025 | Nicholson Garry A | director | 0 | D-Return | D | 37,500 | 12.69 USD | 475,875 USD |
| Thursday, November 6th, 2025 | Nicholson Garry A | director | 0 | D-Return | D | 32,335 | 13.87 USD | 448,486 USD |
| Thursday, November 6th, 2025 | Garland J. Scott | director | 48,072 | A-Award | A | 48,072 | 8.99 USD | 432,167 USD |
| Thursday, November 6th, 2025 | Garland J. Scott | director | 37,500 | A-Award | A | 37,500 | 8.99 USD | 337,125 USD |
| Thursday, November 6th, 2025 | Garland J. Scott | director | 32,335 | A-Award | A | 32,335 | 8.99 USD | 290,692 USD |
| Thursday, November 6th, 2025 | Garland J. Scott | director | 28,700 | A-Award | A | 28,700 | 8.99 USD | 258,013 USD |
| Thursday, November 6th, 2025 | Garland J. Scott | director | 0 | D-Return | D | 48,072 | 24.65 USD | 1,184,975 USD |
| Thursday, November 6th, 2025 | Garland J. Scott | director | 0 | D-Return | D | 37,500 | 12.69 USD | 475,875 USD |
| Thursday, November 6th, 2025 | Garland J. Scott | director | 0 | D-Return | D | 32,335 | 13.87 USD | 448,486 USD |
| Thursday, November 6th, 2025 | Garland J. Scott | director | 0 | D-Return | D | 28,700 | 16.29 USD | 467,523 USD |
| Thursday, November 6th, 2025 | Ramasastry Saira | director | 47,581 | A-Award | A | 47,581 | 8.99 USD | 427,753 USD |
| Thursday, November 6th, 2025 | Ramasastry Saira | director | 40,000 | A-Award | A | 40,000 | 8.99 USD | 359,600 USD |
| Thursday, November 6th, 2025 | Ramasastry Saira | director | 37,500 | A-Award | A | 37,500 | 8.99 USD | 337,125 USD |
| Thursday, November 6th, 2025 | Ramasastry Saira | director | 32,335 | A-Award | A | 32,335 | 8.99 USD | 290,692 USD |
| Thursday, November 6th, 2025 | Ramasastry Saira | director | 28,700 | A-Award | A | 28,700 | 8.99 USD | 258,013 USD |
| Thursday, November 6th, 2025 | Ramasastry Saira | director | 0 | D-Return | D | 37,500 | 12.69 USD | 475,875 USD |
| Thursday, November 6th, 2025 | Ramasastry Saira | director | 0 | D-Return | D | 47,581 | 16.00 USD | 761,296 USD |
| Thursday, November 6th, 2025 | Ramasastry Saira | director | 0 | D-Return | D | 28,700 | 16.29 USD | 467,523 USD |
| Thursday, November 6th, 2025 | Ramasastry Saira | director | 0 | D-Return | D | 32,335 | 13.87 USD | 448,486 USD |
| Thursday, November 6th, 2025 | York Charles N II | officer: COO and CFO | 497,667 | A-Award | A | 497,667 | 8.99 USD | 4,474,026 USD |
| Thursday, November 6th, 2025 | York Charles N II | officer: COO and CFO | 162,000 | A-Award | A | 162,000 | 8.99 USD | 1,456,380 USD |
| Thursday, November 6th, 2025 | York Charles N II | officer: COO and CFO | 151,000 | A-Award | A | 151,000 | 8.99 USD | 1,357,490 USD |
| Thursday, November 6th, 2025 | York Charles N II | officer: COO and CFO | 116,000 | A-Award | A | 116,000 | 8.99 USD | 1,042,840 USD |
| Thursday, November 6th, 2025 | York Charles N II | officer: COO and CFO | 0 | D-Return | D | 497,667 | 16.00 USD | 7,962,672 USD |
| Thursday, November 6th, 2025 | York Charles N II | officer: COO and CFO | 0 | D-Return | D | 162,000 | 11.87 USD | 1,922,940 USD |
| Thursday, November 6th, 2025 | York Charles N II | officer: COO and CFO | 0 | D-Return | D | 151,000 | 14.26 USD | 2,153,260 USD |