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, Q4 2024
Institutional positions in Day One Biopharmaceuticals, Inc. as of Dec 31, 2024. 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
- 164
- −1 vs. Q3 2024
- Shares held
- 93.7M
- +1.70M (+1.8%) vs. Q3 2024
- Total value
- $1.19B
- −$95.8M (−7.5%) vs. Q3 2024
- New holders
- 32
- 62 more added
- Sold out
- 33
- 39 more reduced
1 institution that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2024: 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, Q4 2024
Shares, value and share of portfolio for each institution holding Day One Biopharmaceuticals, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 12,887,467 | $163.3M | 0.01% | +5,475,087+73.9% | Added |
| Atlas Venture Life Science Advisors, LLC | 6,430,257 | $81.5M | 9.94% | 00.0% | Unchanged |
| BlackRock, Inc. | 6,155,837 | $78.0M | 0.00% | +1,446,675+30.7% | Added |
| Vanguard Group Inc | 5,848,923 | $74.1M | 0.00% | −38,287−0.7% | Reduced |
| Ra Capital Management, L.P. | 5,755,577 | $72.9M | 0.97% | −2,116,144−26.9% | Reduced |
| Braidwell LP | 4,873,853 | $61.8M | 1.83% | 00.0% | Unchanged |
| Franklin Resources Inc | 3,882,952 | $49.2M | 0.01% | +13,320+0.3% | Added |
| Estuary Capital Management LP | 3,716,777 | $47.1M | 13.76% | +972,997+35.5% | Added |
| Pictet Asset Management Holding SA | 3,490,064 | $44.2M | 0.05% | +507,398+17.0% | Added |
| Fairmount Funds Management LLC | 3,103,448 | $39.3M | 3.91% | 00.0% | Unchanged |
| State Street Corp | 3,101,677 | $39.3M | 0.00% | +277,860+9.8% | Added |
| Deerfield Management Company, L.P. (Series C) | 2,596,033 | $32.9M | 0.63% | −21,680−0.8% | Reduced |
| Alyeska Investment Group, L.P. | 2,512,187 | $31.8M | 0.12% | +2,512,187 | New |
| TimesSquare Capital Management, LLC | 1,710,926 | $21.7M | 0.32% | −116,769−6.4% | Reduced |
| Price T Rowe Associates Inc | 1,706,112 | $21.6M | 0.00% | −838,751−33.0% | Reduced |
| Geode Capital Management, LLC | 1,462,982 | $18.5M | 0.00% | +30,285+2.1% | Added |
| Vestal Point Capital, LP | 1,440,000 | $18.2M | 1.08% | −1,060,000−42.4% | Reduced |
| Janus Henderson Group PLC | 1,306,220 | $16.6M | 0.01% | −870,977−40.0% | Reduced |
| Boxer Capital Management, LLC | 1,189,943 | $15.1M | 1.28% | +1,189,943 | New |
| Marshall Wace, LLP | 1,097,762 | $13.9M | 0.02% | +1,097,762 | New |
| Morgan Stanley | 1,080,268 | $13.7M | 0.00% | +305,757+39.5% | Added |
| Parkman Healthcare Partners LLC | 1,000,474 | $12.7M | 1.69% | +76,334+8.3% | Added |
| First Turn Management, LLC | 947,878 | $12.0M | 2.15% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 927,017 | $11.7M | 0.00% | +90,822+10.9% | Added |
| Hudson Bay Capital Management LP | 920,108 | $11.7M | 0.07% | +200,000+27.8% | Added |
| EcoR1 Capital, LLC | 862,068 | $10.9M | 0.44% | 00.0% | Unchanged |
| Adage Capital Partners GP, L.L.C. | 800,000 | $10.1M | 0.02% | −100,000−11.1% | Reduced |
| Woodline Partners LP | 798,925 | $10.1M | 0.07% | +1,592+0.2% | Added |
| DAFNA Capital Management LLC | 731,363 | $9.27M | 2.36% | −19,000−2.5% | Reduced |
| Wellington Management Group LLP | 731,303 | $9.27M | 0.00% | +9,722+1.3% | Added |
| Frazier Life Sciences Management, L.P. | 689,655 | $8.74M | 0.36% | 00.0% | Unchanged |
| Citadel Advisors LLC | 611,313 | $7.75M | 0.01% | +127,052+26.2% | Added |
| Northern Trust Corp | 547,050 | $6.93M | 0.00% | +51,960+10.5% | Added |
| Charles Schwab Investment Management Inc | 535,501 | $6.78M | 0.00% | +28,053+5.5% | Added |
| Goldman Sachs Group Inc | 472,239 | $5.98M | 0.00% | −1,302,068−73.4% | Reduced |
| Deutsche Bank AG | 358,920 | $4.55M | 0.00% | +35,460+11.0% | Added |
| Sphera Funds Management Ltd. | 334,987 | $4.24M | 0.78% | −12,640−3.6% | Reduced |
| Parkwood LLC | 275,000 | $3.48M | 0.43% | +275,000 | New |
| Two Sigma Investments, LP | 271,776 | $3.44M | 0.01% | −135,725−33.3% | Reduced |
| Bank of New York Mellon Corp | 244,829 | $3.10M | 0.00% | +74,091+43.4% | Added |
| Renaissance Technologies LLC | 243,740 | $3.09M | 0.00% | +148,900+157.0% | Added |
| Stonepine Capital Management, LLC | 235,000 | $2.98M | 2.40% | +29,325+14.3% | Added |
| ExodusPoint Capital Management, LP | 215,137 | $2.73M | 0.03% | +215,137 | New |
| Essex Investment Management Co LLC | 207,574 | $2.63M | 0.47% | +23,344+12.7% | Added |
| Kennedy Capital Management, Inc. | 193,912 | $2.46M | 0.05% | +4,615+2.4% | Added |
| Millennium Management LLC | 192,100 | $2.43M | 0.00% | +85,606+80.4% | Added |
| Polar Capital Holdings Plc | 185,000 | $2.34M | 0.01% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 184,656 | $2.34M | 0.00% | +94,468+104.7% | Added |
| BIT Capital GmbH | 171,714 | $2.18M | 0.19% | +50,626+41.8% | Added |
| Norges Bank | 169,000 | $2.14M | 0.00% | 00.0% | Unchanged |
| Rafferty Asset Management, LLC | 159,408 | $2.02M | 0.01% | +22,975+16.8% | Added |
| Citigroup Inc | 156,234 | $1.98M | 0.00% | +108,164+225.0% | Added |
| Samsara BioCapital, LLC | 147,319 | $1.87M | 0.26% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 146,385 | $1.85M | 0.00% | +3,250+2.3% | Added |
| Barclays PLC | 141,452 | $1.79M | 0.00% | +6,079+4.5% | Added |
| Nuveen Asset Management, LLC | 141,298 | $1.79M | 0.00% | −22,400−13.7% | Reduced |
| Royal Bank of Canada | 132,274 | $1.68M | 0.00% | +95,625+260.9% | Added |
| Hennion & Walsh Asset Management, Inc. | 121,167 | $1.54M | 0.07% | +57,601+90.6% | Added |
| Swiss National Bank | 117,800 | $1.49M | 0.00% | +3,000+2.6% | Added |
| Macquarie Group Ltd | 110,000 | $1.39M | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 106,600 | $1.35M | 0.00% | −8,500−7.4% | Reduced |
| Jackson Creek Investment Advisors LLC | 103,592 | $1.31M | 0.40% | +103,592 | New |
| CenterBook Partners LP | 100,735 | $1.28M | 0.08% | +100,735 | New |
| Gsa Capital Partners LLP | 98,030 | $1.24M | 0.09% | +38,771+65.4% | Added |
| Fisher Asset Management, LLC | 89,132 | $1.13M | 0.00% | +15,831+21.6% | Added |
| AQR Capital Management LLC | 88,198 | $1.12M | 0.00% | −42,112−32.3% | Reduced |
| Trexquant Investment LP | 87,972 | $1.11M | 0.01% | +87,972 | New |
| Tema ETFs LLC | 85,761 | $1.09M | 0.45% | +85,761 | New |
| NEOS Investment Management LLC | 85,761 | $1.09M | 0.03% | +6,878+8.7% | Added |
| Alps Advisors Inc | 81,549 | $1.03M | 0.01% | +12,240+17.7% | Added |
| UBS Asset Management Americas Inc | 75,579 | $957.6K | 0.00% | +10,386+15.9% | Added |
| Rhumbline Advisers | 75,553 | $957.2K | 0.00% | −1,747−2.3% | Reduced |
| Martingale Asset Management L P | 71,397 | $904.6K | 0.02% | +93+0.1% | Added |
| SG Americas Securities, LLC | 68,374 | $866.0K | 0.00% | +68,374 | New |
| Alliancebernstein L.P. | 68,000 | $861.6K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 64,254 | $814.1K | 0.00% | −407−0.6% | Reduced |
| UBS Group AG | 64,227 | $813.8K | 0.00% | −50,410−44.0% | Reduced |
| Legato Capital Management LLC | 62,027 | $785.9K | 0.10% | −1,140−1.8% | Reduced |
| JPMorgan Chase & Co | 60,427 | $765.6K | 0.00% | −556−0.9% | Reduced |
| State of Wisconsin Investment Board | 58,426 | $740.3K | 0.00% | +18,740+47.2% | Added |
| Legal & General Group Plc | 57,623 | $730.1K | 0.00% | +1,359+2.4% | Added |
| California State Teachers Retirement System | 55,470 | $702.8K | 0.00% | +409+0.7% | Added |
| ADAR1 Capital Management, LLC | 53,023 | $671.8K | 0.14% | −88−0.2% | Reduced |
| Erste Asset Management GmbH | 51,200 | $658.9K | 0.01% | 00.0% | Unchanged |
| Wells Fargo & Company | 51,735 | $655.5K | 0.00% | −4,744−8.4% | Reduced |
| UBS Oconnor LLC | 50,020 | $633.8K | 0.02% | +50,020 | New |
| Manufacturers Life Insurance Company, The | 46,999 | $595.5K | 0.00% | −1,489−3.1% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 41,771 | $525.5K | 0.00% | +41,771 | New |
| HSBC Holdings PLC | 38,583 | $481.1K | 0.00% | +38,583 | New |
| BNP Paribas Arbitrage, SA | 36,685 | $464.8K | 0.00% | +36,685 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 35,843 | $453.6K | 0.00% | +1,894+5.6% | Added |
| Intech Investment Management LLC | 34,888 | $442.0K | 0.00% | +11,652+50.1% | Added |
| MetLife Investment Management | 34,248 | $433.9K | 0.00% | +3,781+12.4% | Added |
| Verition Fund Management LLC | 34,146 | $432.6K | 0.00% | +3,071+9.9% | Added |
| Advisor Group Holdings, Inc. | 32,852 | $416.2K | 0.00% | +32,421+7,522.3% | Added |
| Invesco Ltd. | 32,788 | $415.4K | 0.00% | +798+2.5% | Added |
| Cetera Investment Advisers | 31,571 | $400.0K | 0.00% | +9,756+44.7% | Added |
| Handelsbanken Fonder AB | 31,500 | $399.0K | 0.00% | +4,500+16.7% | Added |
| Profund Advisors LLC | 30,424 | $385.5K | 0.01% | +3,533+13.1% | Added |
| Squarepoint Ops LLC | 30,029 | $380.5K | 0.00% | +30,029 | New |