Day One Biopharmaceuticals, Inc.
DAWNDelisted Apr 23, 2026- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001845337
Day One Biopharmaceuticals, Inc. was delisted on Apr 23, 2026; its insiders filed their last Form 4 on Apr 27, 2026; 208 institutions reported holding it in 13F filings for Q1 2026, worth $1.85B in total; Soros Fund Management was the only superinvestor holding it.
13F holders, Q3 2021
Institutional positions in Day One Biopharmaceuticals, Inc. as of Sep 30, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 45
- +12 vs. Q2 2021
- Shares held
- 19.1M
- +1.37M (+7.7%) vs. Q2 2021
- Total value
- $452.9M
- +$51.9M (+12.9%) vs. Q2 2021
- New holders
- 20
- 12 more added
- Sold out
- 8
- 7 more reduced
Compare with Q2 2021: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting DAWN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1 | $3.55K |
| Q1 2026 | 208 | $1.85B |
| Q4 2025 | 184 | $758.4M |
| Q3 2025 | 173 | $603.5M |
| Q2 2025 | 174 | $561.1M |
| Q1 2025 | 184 | $747.1M |
| Q4 2024 | 164 | $1.19B |
| Q3 2024 | 166 | $1.28B |
| Q2 2024 | 157 | $1.03B |
| Q1 2024 | 148 | $1.20B |
| Q4 2023 | 139 | $1.12B |
| Q3 2023 | 130 | $951.5M |
| Q2 2023 | 140 | $941.0M |
| Q1 2023 | 126 | $818.1M |
| Q4 2022 | 109 | $1.29B |
| Q3 2022 | 93 | $1.21B |
| Q2 2022 | 87 | $1.06B |
| Q1 2022 | 66 | $429.6M |
| Q4 2021 | 58 | $698.3M |
| Q3 2021 | 45 | $452.9M |
| Q2 2021 | 33 | $401.1M |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2021
Shares, value and share of portfolio for each institution holding Day One Biopharmaceuticals, Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ra Capital Management, L.P. | 4,965,588 | $117.8M | 1.63% | 00.0% | Unchanged |
| FMR LLC | 2,161,909 | $51.3M | 0.00% | −150,541−6.5% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 1,710,730 | $40.6M | 0.79% | +891,750+108.9% | Added |
| Price T Rowe Associates Inc | 1,506,326 | $34.9M | 0.00% | +930+0.1% | Added |
| Viking Global Investors LPSuperinvestorViking Global Investors | 1,211,396 | $28.7M | 0.08% | −130,000−9.7% | Reduced |
| Boxer Capital, LLC | 1,189,943 | $28.2M | 0.99% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 1,022,483 | $23.4M | 0.01% | −275,287−21.2% | Reduced |
| Vanguard Group Inc | 820,073 | $19.5M | 0.00% | +200,689+32.4% | Added |
| BVF Inc | 810,284 | $19.2M | 0.75% | −108,691−11.8% | Reduced |
| Franklin Resources Inc | 590,527 | $14.0M | 0.01% | +71,561+13.8% | Added |
| Perceptive Advisors LLC | 556,047 | $13.2M | 0.19% | −200,000−26.5% | Reduced |
| BlackRock Inc. | 521,273 | $12.4M | 0.00% | +516,901+11,823.0% | Added |
| Driehaus Capital Management LLC | 431,446 | $10.2M | 0.12% | −2,977−0.7% | Reduced |
| Rock Springs Capital Management LP | 376,439 | $8.93M | 0.19% | +2,700+0.7% | Added |
| Samsara BioCapital, LLC | 202,500 | $4.80M | 0.80% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 186,627 | $4.43M | 0.00% | +151,692+434.2% | Added |
| Millennium Management LLC | 177,945 | $4.22M | 0.01% | +177,945 | New |
| State Street Corp | 124,032 | $2.94M | 0.00% | +124,032 | New |
| Logos Global Management LP | 52,069 | $2.80M | 0.20% | +15,000+40.5% | Added |
| Alyeska Investment Group, L.P. | 103,200 | $2.45M | 0.03% | 00.0% | Unchanged |
| Northern Trust Corp | 98,099 | $2.33M | 0.00% | +85,381+671.3% | Added |
| Adage Capital Partners GP, L.L.C. | 90,000 | $2.14M | 0.00% | +90,000 | New |
| Charles Schwab Investment Management Inc | 75,226 | $1.79M | 0.00% | +75,226 | New |
| Bank of New York Mellon Corp | 26,795 | $635.0K | 0.00% | +26,795 | New |
| TD Asset Management Inc | 16,856 | $400.0K | 0.00% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 14,961 | $355.0K | 0.00% | +14,961 | New |
| Wells Fargo & Company | 10,053 | $238.0K | 0.00% | +10,053 | New |
| Deutsche Bank AG | 6,339 | $150.0K | 0.00% | +6,339 | New |
| American International Group, Inc. | 6,035 | $143.0K | 0.00% | +6,035 | New |
| California State Teachers Retirement System | 5,957 | $141.0K | 0.00% | +5,957 | New |
| MetLife Investment Management | 4,806 | $114.0K | 0.00% | +4,806 | New |
| JPMorgan Chase & Co | 4,223 | $100.0K | 0.00% | +4,169+7,720.4% | Added |
| Metropolitan Life Insurance Co | 3,636 | $86.3K | 0.00% | +3,636 | New |
| Morgan Stanley | 2,967 | $70.0K | 0.00% | +593+25.0% | Added |
| STRS Ohio | 2,500 | $59.0K | 0.00% | +2,500 | New |
| Royal Bank of Canada | 1,376 | $33.0K | 0.00% | +1,376 | New |
| Citigroup Inc | 1,279 | $30.0K | 0.00% | +1,279 | New |
| Legal & General Group Plc | 1,027 | $24.0K | 0.00% | +1,027 | New |
| Ameritas Investment Partners, Inc. | 845 | $20.0K | 0.00% | +845 | New |
| Capital Analysts, LLC | 750 | $18.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 534 | $12.0K | 0.00% | +524+5,240.0% | Added |
| Bank of America Corp | 484 | $11.0K | 0.00% | −216−30.9% | Reduced |
| Jacobi Capital Management LLC | 200 | $5.00K | 0.00% | +200 | New |
| Red Tortoise LLC | 196 | $4.00K | 0.00% | +196 | New |
| UBS Group AG | 59 | $1.00K | 0.00% | +59 | New |
| HealthCor Management, L.P. | 0 | $0 | 0.00% | −103,717−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Marshall Wace North America L.P. | 0 | $0 | 0.00% | −41,147−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −18,927−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −12,497−100.0% | Sold out |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −11,594−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −9,372−100.0% | Sold out |
| Maven Securities LTD | 0 | $0 | 0.00% | −9,000−100.0% | Sold out |