| $350M | ||
| $172M | ||
| $115M | ||
| $109M | ||
| $107M | ||
| $100M |
Buys | $ | – | |
Sells | $ | – |
Day One Biopharmaceuticals, Inc., a clinical-stage biopharmaceutical company, develops and commercializes targeted therapies for patients with genetically defined cancers. Its lead product candidate is DAY101, an oral brain-penetrant type II pan-rapidly accelerated fibrosarcoma kinase inhibitor that is in Phase II clinical trial for pediatric patients with relapsed/progressive low-grade glioma. The company is also developing Pimasertib, an oral small molecule inhibitor of mitogen-activated protein kinase kinases 1 and 2. Day One Biopharmaceuticals, Inc. was incorporated in 2018 and is headquartered in South San Francisco, California.
Over the last 12 months, insiders at Day One Biopharmaceuticals, Inc. have bought $undefined and sold $undefined worth of Day One Biopharmaceuticals, Inc. stock.
On average, over the past 5 years, insiders at Day One Biopharmaceuticals, Inc. have bought $22.51M and sold $14.71M worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 111,387 shares for transaction amount of $1.11M was made by AI Day1 LLC (10 percent owner) on 2023‑10‑20.
| Increased Positions | 128 | +59.53% | 17M | +19.33% |
| Decreased Positions | 94 | -43.72% | 23M | -25.33% |
| New Positions | 56 | New | 5M | New |
| Sold Out Positions | 41 | Sold Out | 10M | Sold Out |
| Total Postitions | 249 | +15.81% | 84M | -6% |
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| Atlas Venture Life Science Advisors, Llc | $56,908.00 | 6.24% | 6.43M | 0 | 0% | 2025-09-30 |
| Vanguard Group Inc | $54,705.00 | 6% | 6.18M | +4,834 | +0.08% | 2025-09-30 |
| Deerfield Management Company, L.P. | $41,643.00 | 4.57% | 4.71M | +982,282 | +26.38% | 2025-09-30 |
| Franklin Resources Inc | $30,772.00 | 3.38% | 3.48M | -620,599 | -15.14% | 2025-09-30 |
| Rubric Capital Management Lp | $29,887.00 | 3.28% | 3.38M | +3M | New | 2025-09-30 |
| State Street Corp | $28,678.00 | 3.15% | 3.24M | +550,758 | +20.48% | 2025-09-30 |
| Vestal Point Capital, Lp | $23,674.00 | 2.6% | 2.67M | -325,000 | -10.83% | 2025-09-30 |
| Pictet Asset Management Holding Sa | $21,002.00 | 2.3% | 2.37M | -1M | -36.25% | 2025-09-30 |