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 2025
Institutional positions in Day One Biopharmaceuticals, Inc. as of Dec 31, 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
- 184
- +11 vs. Q3 2025
- Shares held
- 81.4M
- −4.19M (−4.9%) vs. Q3 2025
- Total value
- $758.4M
- +$155.0M (+25.7%) vs. Q3 2025
- New holders
- 44
- 74 more added
- Sold out
- 33
- 43 more reduced
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Day One Biopharmaceuticals, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Franklin Resources Inc | 52,726 | $491.4K | 0.00% | −3,424,300−98.5% | Reduced |
| Deutsche Bank AG | 57,010 | $531.3K | 0.00% | +15,506+37.4% | Added |
| Susquehanna Portfolio Strategies, LLC | 57,379 | $534.8K | 0.01% | −35,176−38.0% | Reduced |
| Profund Advisors LLC | 58,129 | $541.8K | 0.02% | +30,494+110.3% | Added |
| Tudor Investment Corp Et Al | 62,316 | $580.8K | 0.00% | +12,766+25.8% | Added |
| Legal & General Group Plc | 63,668 | $593.4K | 0.00% | +6,804+12.0% | Added |
| Alliancebernstein L.P. | 67,790 | $631.8K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 72,219 | $673.1K | 0.00% | +325+0.5% | Added |
| Los Angeles Capital Management LLC | 100,314 | $706.2K | 0.00% | +1,425+1.4% | Added |
| American Century Companies Inc | 78,925 | $735.6K | 0.00% | +45,060+133.1% | Added |
| Virtus Investment Advisers, Inc. | 81,747 | $761.9K | 0.21% | +15,320+23.1% | Added |
| Perkins Capital Management Inc | 84,000 | $782.9K | 0.62% | +1,750+2.1% | Added |
| Alps Advisors Inc | 84,304 | $785.7K | 0.00% | +35,269+71.9% | Added |
| Ameriprise Financial Inc | 87,073 | $811.5K | 0.00% | +87,073 | New |
| Oracle Investment Management Inc | 100,000 | $932.0K | 0.61% | +100,000 | New |
| Squarepoint Ops LLC | 100,612 | $937.7K | 0.00% | +100,612 | New |
| Price T Rowe Associates Inc | 102,456 | $955.0K | 0.00% | +22,723+28.5% | Added |
| Nomura Asset Management International Inc. | 110,000 | $1.02M | 0.00% | +110,000 | New |
| Rhumbline Advisers | 111,679 | $1.04M | 0.00% | −10,266−8.4% | Reduced |
| Wells Fargo & Company | 114,716 | $1.07M | 0.00% | +33,248+40.8% | Added |
| Nomura Holdings Inc | 115,000 | $1.07M | 0.00% | +115,000 | New |
| Invesco Ltd. | 123,994 | $1.16M | 0.00% | +25,952+26.5% | Added |
| UBS Asset Management Americas Inc | 124,422 | $1.16M | 0.00% | +8,177+7.0% | Added |
| XTX Topco Ltd | 128,440 | $1.20M | 0.03% | +49,592+62.9% | Added |
| Swiss National Bank | 141,500 | $1.32M | 0.00% | +15,700+12.5% | Added |
| Gsa Capital Partners LLP | 142,809 | $1.33M | 0.11% | +142,809 | New |
| Russell Investments Group, Ltd. | 143,079 | $1.33M | 0.00% | −7,270−4.8% | Reduced |
| Sphera Funds Management Ltd. | 145,371 | $1.35M | 0.28% | −30,000−17.1% | Reduced |
| Catalytic Wealth RIA, LLC | 150,030 | $1.40M | 0.05% | +100,030+200.1% | Added |
| Massachusetts Financial Services Co | 150,925 | $1.41M | 0.00% | +150,925 | New |
| Point72 Asset Management, L.P. | 156,206 | $1.46M | 0.00% | +156,206 | New |
| Rafferty Asset Management, LLC | 157,010 | $1.46M | 0.01% | +29,430+23.1% | Added |
| Norges Bank | 169,000 | $1.58M | 0.00% | +169,000 | New |
| UBS Group AG | 170,728 | $1.59M | 0.00% | −38,989−18.6% | Reduced |
| Fisher Asset Management, LLC | 191,823 | $1.79M | 0.00% | −28,340−12.9% | Reduced |
| Man Group plc | 197,096 | $1.84M | 0.00% | +105,278+114.7% | Added |
| Stonepine Capital Management, LLC | 200,000 | $1.86M | 1.47% | −447,382−69.1% | Reduced |
| Bank of New York Mellon Corp | 211,546 | $1.97M | 0.00% | −94,634−30.9% | Reduced |
| Group One Trading, L.P. | 253,143 | $2.36M | 0.07% | +253,143 | New |
| Arrowstreet Capital, Limited Partnership | 255,022 | $2.38M | 0.00% | +255,022 | New |
| Y-Intercept (Hong Kong) Ltd | 282,025 | $2.63M | 0.06% | +282,025 | New |
| Barclays PLC | 292,325 | $2.72M | 0.00% | −54,860−15.8% | Reduced |
| Logos Global Management LP | 300,000 | $2.80M | 0.19% | +300,000 | New |
| Schonfeld Strategic Advisors LLC | 300,102 | $2.80M | 0.01% | +276,782+1,186.9% | Added |
| Hennion & Walsh Asset Management, Inc. | 313,455 | $2.92M | 0.10% | +218,383+229.7% | Added |
| SG Americas Securities, LLC | 350,092 | $3.26M | 0.00% | +323,747+1,228.9% | Added |
| AQR Capital Management LLC | 431,758 | $4.02M | 0.00% | +323,281+298.0% | Added |
| HRT Financial LP | 450,938 | $4.20M | 0.01% | +129,561+40.3% | Added |
| BNP Paribas Arbitrage, SA | 453,311 | $4.22M | 0.00% | +185,023+69.0% | Added |
| Nuveen, LLC | 522,455 | $4.87M | 0.00% | +372,083+247.4% | Added |
| Algert Global LLC | 535,290 | $4.99M | 0.08% | −781,752−59.4% | Reduced |
| Kennedy Capital Management, Inc. | 542,848 | $5.06M | 0.11% | +2,464+0.5% | Added |
| Pale Fire Capital SE | 544,063 | $5.07M | 0.65% | +241,596+79.9% | Added |
| Schroder Investment Management Group | 569,624 | $5.23M | 0.00% | +299,407+110.8% | Added |
| Northern Trust Corp | 617,035 | $5.75M | 0.00% | −12,557−2.0% | Reduced |
| Charles Schwab Investment Management Inc | 633,694 | $5.91M | 0.00% | +23,630+3.9% | Added |
| Parkman Healthcare Partners LLC | 645,544 | $6.02M | 0.57% | +343,798+113.9% | Added |
| Jump Financial, LLC | 667,120 | $6.22M | 0.08% | +394,573+144.8% | Added |
| Jacobs Levy Equity Management, Inc | 729,281 | $6.80M | 0.03% | +729,281 | New |
| Susquehanna International Group, LLP | 737,660 | $6.87M | 0.01% | +708,806+2,456.5% | Added |
| Mak Capital One LLC | 826,205 | $7.70M | 1.04% | −622,256−43.0% | Reduced |
| Jane Street Group, LLC | 845,154 | $7.88M | 0.01% | +565,810+202.5% | Added |
| DAFNA Capital Management LLC | 999,163 | $9.31M | 2.16% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 1,037,312 | $9.67M | 0.00% | −185,972−15.2% | Reduced |
| Bank of America Corp | 1,083,818 | $10.1M | 0.00% | −108,033−9.1% | Reduced |
| Jefferies Financial Group Inc. | 1,121,502 | $10.5M | 0.09% | +1,121,502 | New |
| Renaissance Technologies LLC | 1,305,084 | $12.2M | 0.02% | +399,608+44.1% | Added |
| Millennium Management LLC | 1,349,919 | $12.6M | 0.01% | +656,599+94.7% | Added |
| Citadel Advisors LLC | 1,359,613 | $12.7M | 0.01% | +696,400+105.0% | Added |
| Qube Research & Technologies Ltd | 1,486,562 | $13.9M | 0.02% | +318,893+27.3% | Added |
| Balyasny Asset Management LLC | 1,489,924 | $13.9M | 0.03% | +105,877+7.6% | Added |
| Goldman Sachs Group Inc | 1,506,234 | $14.0M | 0.00% | +134,797+9.8% | Added |
| Morgan Stanley | 1,550,274 | $14.4M | 0.00% | +246,245+18.9% | Added |
| Hudson Bay Capital Management LP | 1,700,000 | $15.8M | 0.09% | +380,000+28.8% | Added |
| Geode Capital Management, LLC | 1,877,838 | $17.5M | 0.00% | +116,574+6.6% | Added |
| AIGH Capital Management LLC | 1,992,021 | $18.6M | 5.49% | +471,529+31.0% | Added |
| Pictet Asset Management Holding SA | 2,990,801 | $27.9M | 0.03% | +617,668+26.0% | Added |
| Deerfield Management Company, L.P. (Series C) | 3,723,131 | $34.7M | 0.44% | −982,282−20.9% | Reduced |
| State Street Corp | 4,289,566 | $40.0M | 0.00% | +1,049,122+32.4% | Added |
| Vestal Point Capital, LP | 5,200,000 | $48.5M | 1.78% | +2,525,000+94.4% | Added |
| FMR LLC | 5,717,008 | $53.3M | 0.00% | −4,380,660−43.4% | Reduced |
| Vanguard Group Inc | 6,282,376 | $58.6M | 0.00% | +101,047+1.6% | Added |
| Atlas Venture Life Science Advisors, LLC | 6,412,560 | $59.8M | 6.91% | −17,697−0.3% | Reduced |
| BlackRock, Inc. | 8,837,574 | $82.4M | 0.00% | −163,881−1.8% | Reduced |
| Rubric Capital Management LP | 0 | $0 | 0.00% | −3,377,071−100.0% | Sold out |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −2,212,187−100.0% | Sold out |
| Braidwell LP | 0 | $0 | 0.00% | −2,181,598−100.0% | Sold out |
| J. Goldman & Co LP | 0 | $0 | 0.00% | −569,619−100.0% | Sold out |
| Parkwood LLC | 0 | $0 | 0.00% | −275,000−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −266,580−100.0% | Sold out |
| National Philanthropic Trust | 0 | $0 | 0.00% | −150,000−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −138,420−100.0% | Sold out |
| Macquarie Group Ltd | 0 | $0 | 0.00% | −110,000−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −87,541−100.0% | Sold out |
| PharVision Advisers, LLC | 0 | $0 | 0.00% | −42,345−100.0% | Sold out |
| Diametric Capital, LP | 0 | $0 | 0.00% | −38,465−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −38,463−100.0% | Sold out |
| ADAR1 Capital Management, LLC | 0 | $0 | 0.00% | −28,023−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −22,642−100.0% | Sold out |
| NEOS Investment Management LLC | 0 | $0 | 0.00% | −19,542−100.0% | Sold out |