Insiders / York Charles N II
York Charles N II
CIK 1655962personinsider
Companies
1
First seen
Jan 30, 2026
Last activity
Feb 18, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Day One Biopharmaceuticals, Inc. · DAWN | 312,025 | — |
All securities held
4 positions · latest reported per filing
| Company | Security | Shares |
|---|---|---|
| Day One Biopharmaceuticals, Inc. | Common Stock | 312,025 |
| Day One Biopharmaceuticals, Inc. | Stock Option (right to buy Common Stock)Derivative | 188,000 |
| Day One Biopharmaceuticals, Inc. | Restricted Stock UnitsDerivative | 126,000 |
| Day One Biopharmaceuticals, Inc. | Restricted Stock Unit (RSU)Derivative | 118,125 |
Activity
InsidersInstitutions
This person's insider trades (Form 4), across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Feb 17, 2026 | Sell | DAWN Day One Biopharmaceuticals, Inc. Common Stock | $70.4K | -6K -1.91% | 312,025 0.30% of shares | low |
| Feb 15, 2026 | Exercise | DAWN Day One Biopharmaceuticals, Inc. Restricted Stock Unit (RSU) | — | -8K -6.25% | 118,125 0.11% of shares | low |
| Feb 15, 2026 | Exercise | DAWN Day One Biopharmaceuticals, Inc. Restricted Stock Unit (RSU) | — | -7K -8.33% | 72,875 0.07% of shares | low |
| Feb 15, 2026 | Exercise | DAWN Day One Biopharmaceuticals, Inc. Restricted Stock Unit (RSU) | — | -7K -12.50% | 46,375 0.04% of shares | low |
| Feb 15, 2026 | Exercise | DAWN Day One Biopharmaceuticals, Inc. Restricted Stock Unit (RSU) | — | -2K -25.00% | 6,750 <0.01% of shares | low |
| Feb 15, 2026 | Exercise | DAWN Day One Biopharmaceuticals, Inc. Common Stock | — | +8K +2.54% | 318,090 0.31% of shares | low |
| Feb 15, 2026 | Exercise | DAWN Day One Biopharmaceuticals, Inc. Common Stock | — | +7K +2.18% | 310,215 0.30% of shares | low |
| Feb 15, 2026 | Exercise | DAWN Day One Biopharmaceuticals, Inc. Common Stock | — | +7K +2.23% | 303,590 0.29% of shares | low |
| Feb 15, 2026 | Exercise | DAWN Day One Biopharmaceuticals, Inc. Common Stock | — | +2K +0.76% | 296,965 0.29% of shares | low |
| Jan 30, 2026 | Grant | DAWN Day One Biopharmaceuticals, Inc. Restricted Stock Units | — | +126K | 126,000 0.12% of shares | low |