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, Q2 2025
Institutional positions in Day One Biopharmaceuticals, Inc. as of Jun 30, 2025. 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
- 174
- −8 vs. Q1 2025
- Shares held
- 86.3M
- −7.85M (−8.3%) vs. Q1 2025
- Total value
- $561.1M
- −$185.7M (−24.9%) vs. Q1 2025
- New holders
- 26
- 71 more added
- Sold out
- 34
- 55 more reduced
2 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: 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, Q2 2025
Shares, value and share of portfolio for each institution holding Day One Biopharmaceuticals, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 11,342,699 | $73.7M | 0.00% | −2,357,749−17.2% | Reduced |
| BlackRock, Inc. | 9,830,431 | $63.9M | 0.00% | +3,072,502+45.5% | Added |
| Atlas Venture Life Science Advisors, LLC | 6,430,257 | $41.8M | 6.31% | 00.0% | Unchanged |
| Vanguard Group Inc | 6,176,495 | $40.1M | 0.00% | +233,252+3.9% | Added |
| Franklin Resources Inc | 4,097,625 | $26.6M | 0.01% | +79,255+2.0% | Added |
| Deerfield Management Company, L.P. (Series C) | 3,723,131 | $24.2M | 0.44% | +762,391+25.8% | Added |
| Pictet Asset Management Holding SA | 3,722,732 | $24.2M | 0.02% | +87,152+2.4% | Added |
| Alyeska Investment Group, L.P. | 3,012,187 | $19.6M | 0.07% | −1,047,577−25.8% | Reduced |
| Vestal Point Capital, LP | 3,000,000 | $19.5M | 1.03% | +401,873+15.5% | Added |
| State Street Corp | 2,689,686 | $17.5M | 0.00% | −17,013−0.6% | Reduced |
| Braidwell LP | 2,181,598 | $14.2M | 0.48% | −1,355,255−38.3% | Reduced |
| Polar Capital Holdings Plc | 2,109,177 | $13.7M | 0.07% | −240,823−10.2% | Reduced |
| Geode Capital Management, LLC | 1,712,429 | $11.1M | 0.00% | +171,964+11.2% | Added |
| Goldman Sachs Group Inc | 1,691,286 | $11.0M | 0.00% | +121,368+7.7% | Added |
| Dimensional Fund Advisors LP | 1,416,553 | $9.21M | 0.00% | +113,588+8.7% | Added |
| Morgan Stanley | 1,353,148 | $8.80M | 0.00% | +643,733+90.7% | Added |
| Hudson Bay Capital Management LP | 1,296,700 | $8.43M | 0.06% | +146,300+12.7% | Added |
| Millennium Management LLC | 1,207,802 | $7.85M | 0.01% | −112,293−8.5% | Reduced |
| Price T Rowe Associates Inc | 1,120,631 | $7.29M | 0.00% | −52,463−4.5% | Reduced |
| Renaissance Technologies LLC | 1,000,540 | $6.50M | 0.01% | +652,100+187.1% | Added |
| Bank of America Corp | 965,423 | $6.28M | 0.00% | −81,333−7.8% | Reduced |
| Qube Research & Technologies Ltd | 944,202 | $6.14M | 0.01% | +663,418+236.3% | Added |
| Algert Global LLC | 906,042 | $5.89M | 0.12% | +534,662+144.0% | Added |
| DAFNA Capital Management LLC | 879,163 | $5.71M | 1.58% | +147,800+20.2% | Added |
| EcoR1 Capital, LLC | 862,068 | $5.60M | 0.33% | 00.0% | Unchanged |
| Citadel Advisors LLC | 703,644 | $4.57M | 0.00% | −635,374−47.5% | Reduced |
| Northern Trust Corp | 611,161 | $3.97M | 0.00% | +75,164+14.0% | Added |
| Charles Schwab Investment Management Inc | 578,763 | $3.76M | 0.00% | +50,615+9.6% | Added |
| J. Goldman & Co LP | 557,480 | $3.62M | 0.11% | +557,480 | New |
| Parkman Healthcare Partners LLC | 500,000 | $3.25M | 0.38% | −543,162−52.1% | Reduced |
| Kennedy Capital Management, Inc. | 453,520 | $2.95M | 0.07% | +125,829+38.4% | Added |
| Stonepine Capital Management, LLC | 450,000 | $2.92M | 2.88% | +101,180+29.0% | Added |
| Point72 Asset Management, L.P. | 391,280 | $2.54M | 0.01% | +391,280 | New |
| Barclays PLC | 348,109 | $2.26M | 0.00% | +192,900+124.3% | Added |
| Deutsche Bank AG | 325,288 | $2.11M | 0.00% | −9,234−2.8% | Reduced |
| ExodusPoint Capital Management, LP | 320,217 | $2.08M | 0.03% | +296,480+1,249.0% | Added |
| Bank of New York Mellon Corp | 307,853 | $2.00M | 0.00% | +59,473+23.9% | Added |
| Y-Intercept (Hong Kong) Ltd | 281,528 | $1.83M | 0.04% | +281,528 | New |
| AQR Capital Management LLC | 279,850 | $1.82M | 0.00% | −338,777−54.8% | Reduced |
| Parkwood LLC | 275,000 | $1.79M | 0.16% | 00.0% | Unchanged |
| Susquehanna Fundamental Investments, LLC | 263,313 | $1.71M | 0.05% | −59,562−18.4% | Reduced |
| Fisher Asset Management, LLC | 221,983 | $1.44M | 0.00% | −53,224−19.3% | Reduced |
| Cubist Systematic Strategies, LLC | 193,857 | $1.26M | 0.01% | +193,857 | New |
| Schroder Investment Management Group | 180,133 | $1.17M | 0.00% | +180,133 | New |
| UBS Asset Management Americas Inc | 175,416 | $1.14M | 0.00% | +63,137+56.2% | Added |
| Sphera Funds Management Ltd. | 175,371 | $1.14M | 0.30% | −159,616−47.6% | Reduced |
| Royal Bank of Canada | 174,974 | $1.14M | 0.00% | −10,759−5.8% | Reduced |
| Norges Bank | 169,000 | $1.10M | 0.00% | 00.0% | Unchanged |
| Nuveen, LLC | 150,372 | $977.4K | 0.00% | +10,714+7.7% | Added |
| National Philanthropic Trust | 150,000 | $975.0K | 0.01% | +150,000 | New |
| Russell Investments Group, Ltd. | 143,453 | $932.4K | 0.00% | +127,113+777.9% | Added |
| State of Wisconsin Investment Board | 136,276 | $885.8K | 0.00% | +53,018+63.7% | Added |
| HSBC Holdings PLC | 131,668 | $846.0K | 0.00% | +81,491+162.4% | Added |
| Swiss National Bank | 125,800 | $817.7K | 0.00% | +18,300+17.0% | Added |
| BNP Paribas Arbitrage, SA | 125,462 | $815.5K | 0.00% | −36,542−22.6% | Reduced |
| NEOS Investment Management LLC | 124,310 | $808.0K | 0.01% | +33,187+36.4% | Added |
| Tema ETFs LLC | 124,310 | $808.0K | 0.21% | +33,187+36.4% | Added |
| Rhumbline Advisers | 116,060 | $754.4K | 0.00% | +34,216+41.8% | Added |
| Trexquant Investment LP | 115,427 | $750.3K | 0.01% | −89,355−43.6% | Reduced |
| Macquarie Group Ltd | 110,000 | $715.0K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 108,371 | $704.4K | 0.00% | −56,305−34.2% | Reduced |
| UBS Oconnor LLC | 107,249 | $697.1K | 0.02% | −6,001−5.3% | Reduced |
| Woodline Partners LP | 100,516 | $653.4K | 0.00% | −112,638−52.8% | Reduced |
| Susquehanna International Group, LLP | 100,502 | $653.3K | 0.00% | −8,066−7.4% | Reduced |
| Schonfeld Strategic Advisors LLC | 99,590 | $647.3K | 0.00% | +34,065+52.0% | Added |
| Rafferty Asset Management, LLC | 98,691 | $641.5K | 0.00% | −20,469−17.2% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 96,821 | $629.3K | 0.03% | −41,147−29.8% | Reduced |
| UBS Group AG | 89,475 | $581.6K | 0.00% | −34,701−27.9% | Reduced |
| JPMorgan Chase & Co | 89,102 | $579.2K | 0.00% | +27,566+44.8% | Added |
| Dynamic Technology Lab Private Ltd | 83,223 | $541.0K | 0.07% | +34,766+71.7% | Added |
| Los Angeles Capital Management LLC | 82,257 | $534.7K | 0.00% | +27,335+49.8% | Added |
| D. E. Shaw & Co., Inc. | 81,303 | $528.5K | 0.00% | −1,767−2.1% | Reduced |
| Catalytic Wealth RIA, LLC | 80,000 | $520.0K | 0.04% | +80,000 | New |
| Dark Forest Capital Management LP | 78,422 | $509.7K | 0.02% | +78,422 | New |
| Wells Fargo & Company | 72,567 | $471.7K | 0.00% | +18,871+35.1% | Added |
| Invesco Ltd. | 68,507 | $445.3K | 0.00% | +22,083+47.6% | Added |
| Alliancebernstein L.P. | 67,790 | $440.6K | 0.00% | 00.0% | Unchanged |
| Virtus Investment Advisers, Inc. | 66,427 | $431.8K | 0.15% | +38,397+137.0% | Added |
| Gsa Capital Partners LLP | 63,546 | $413.0K | 0.03% | +19,843+45.4% | Added |
| Nebula Research & Development LLC | 60,665 | $394.3K | 0.03% | +3,533+6.2% | Added |
| DRW Securities, LLC | 57,804 | $375.7K | 0.03% | +57,804 | New |
| Legal & General Group Plc | 56,864 | $369.6K | 0.00% | −3,701−6.1% | Reduced |
| Man Group plc | 56,862 | $369.6K | 0.00% | +17,950+46.1% | Added |
| California State Teachers Retirement System | 56,120 | $364.8K | 0.00% | +650+1.2% | Added |
| Alps Advisors Inc | 54,708 | $355.6K | 0.00% | −18,635−25.4% | Reduced |
| Erste Asset Management GmbH | 51,200 | $331.3K | 0.00% | 00.0% | Unchanged |
| Diametric Capital, LP | 49,941 | $324.6K | 0.17% | +25,465+104.0% | Added |
| Intech Investment Management LLC | 45,397 | $295.1K | 0.00% | −5,767−11.3% | Reduced |
| MetLife Investment Management | 44,442 | $288.9K | 0.00% | +10,832+32.2% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 44,244 | $287.4K | 0.00% | +6,252+16.5% | Added |
| Manufacturers Life Insurance Company, The | 38,204 | $248.3K | 0.00% | +8,496+28.6% | Added |
| Tudor Investment Corp Et Al | 36,393 | $236.6K | 0.00% | −14,401−28.4% | Reduced |
| Martingale Asset Management L P | 35,000 | $227.5K | 0.01% | −26,597−43.2% | Reduced |
| Pale Fire Capital SE | 34,843 | $226.5K | 0.02% | +3,150+9.9% | Added |
| Knott David M Jr | 33,714 | $219.1K | 0.10% | +33,714 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 32,939 | $214.1K | 0.00% | +18,670+130.8% | Added |
| Advisor Group Holdings, Inc. | 32,881 | $213.7K | 0.00% | −32,430−49.7% | Reduced |
| Bayesian Capital Management, LP | 28,100 | $182.7K | 0.03% | +10,100+56.1% | Added |
| ADAR1 Capital Management, LLC | 28,023 | $182.2K | 0.03% | 00.0% | Unchanged |
| Ieq Capital, LLC | 27,948 | $181.7K | 0.00% | −9,064−24.5% | Reduced |