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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8,837,574 | $82.4M | 0.00% | −163,881−1.8% | Reduced |
| Atlas Venture Life Science Advisors, LLC | 6,412,560 | $59.8M | 6.91% | −17,697−0.3% | Reduced |
| Vanguard Group Inc | 6,282,376 | $58.6M | 0.00% | +101,047+1.6% | Added |
| FMR LLC | 5,717,008 | $53.3M | 0.00% | −4,380,660−43.4% | Reduced |
| Vestal Point Capital, LP | 5,200,000 | $48.5M | 1.78% | +2,525,000+94.4% | Added |
| State Street Corp | 4,289,566 | $40.0M | 0.00% | +1,049,122+32.4% | Added |
| Deerfield Management Company, L.P. (Series C) | 3,723,131 | $34.7M | 0.44% | −982,282−20.9% | Reduced |
| Pictet Asset Management Holding SA | 2,990,801 | $27.9M | 0.03% | +617,668+26.0% | Added |
| AIGH Capital Management LLC | 1,992,021 | $18.6M | 5.49% | +471,529+31.0% | Added |
| Geode Capital Management, LLC | 1,877,838 | $17.5M | 0.00% | +116,574+6.6% | Added |
| Hudson Bay Capital Management LP | 1,700,000 | $15.8M | 0.09% | +380,000+28.8% | Added |
| Morgan Stanley | 1,550,274 | $14.4M | 0.00% | +246,245+18.9% | Added |
| Goldman Sachs Group Inc | 1,506,234 | $14.0M | 0.00% | +134,797+9.8% | Added |
| Balyasny Asset Management LLC | 1,489,924 | $13.9M | 0.03% | +105,877+7.6% | Added |
| Qube Research & Technologies Ltd | 1,486,562 | $13.9M | 0.02% | +318,893+27.3% | Added |
| Citadel Advisors LLC | 1,359,613 | $12.7M | 0.01% | +696,400+105.0% | Added |
| Millennium Management LLC | 1,349,919 | $12.6M | 0.01% | +656,599+94.7% | Added |
| Renaissance Technologies LLC | 1,305,084 | $12.2M | 0.02% | +399,608+44.1% | Added |
| Jefferies Financial Group Inc. | 1,121,502 | $10.5M | 0.09% | +1,121,502 | New |
| Bank of America Corp | 1,083,818 | $10.1M | 0.00% | −108,033−9.1% | Reduced |
| Dimensional Fund Advisors LP | 1,037,312 | $9.67M | 0.00% | −185,972−15.2% | Reduced |
| DAFNA Capital Management LLC | 999,163 | $9.31M | 2.16% | 00.0% | Unchanged |
| Jane Street Group, LLC | 845,154 | $7.88M | 0.01% | +565,810+202.5% | Added |
| Mak Capital One LLC | 826,205 | $7.70M | 1.04% | −622,256−43.0% | Reduced |
| Susquehanna International Group, LLP | 737,660 | $6.87M | 0.01% | +708,806+2,456.5% | Added |
| Jacobs Levy Equity Management, Inc | 729,281 | $6.80M | 0.03% | +729,281 | New |
| Jump Financial, LLC | 667,120 | $6.22M | 0.08% | +394,573+144.8% | Added |
| Parkman Healthcare Partners LLC | 645,544 | $6.02M | 0.57% | +343,798+113.9% | Added |
| Charles Schwab Investment Management Inc | 633,694 | $5.91M | 0.00% | +23,630+3.9% | Added |
| Northern Trust Corp | 617,035 | $5.75M | 0.00% | −12,557−2.0% | Reduced |
| Schroder Investment Management Group | 569,624 | $5.23M | 0.00% | +299,407+110.8% | Added |
| Pale Fire Capital SE | 544,063 | $5.07M | 0.65% | +241,596+79.9% | Added |
| Kennedy Capital Management, Inc. | 542,848 | $5.06M | 0.11% | +2,464+0.5% | Added |
| Algert Global LLC | 535,290 | $4.99M | 0.08% | −781,752−59.4% | Reduced |
| Nuveen, LLC | 522,455 | $4.87M | 0.00% | +372,083+247.4% | Added |
| BNP Paribas Arbitrage, SA | 453,311 | $4.22M | 0.00% | +185,023+69.0% | Added |
| HRT Financial LP | 450,938 | $4.20M | 0.01% | +129,561+40.3% | Added |
| AQR Capital Management LLC | 431,758 | $4.02M | 0.00% | +323,281+298.0% | Added |
| SG Americas Securities, LLC | 350,092 | $3.26M | 0.00% | +323,747+1,228.9% | Added |
| Hennion & Walsh Asset Management, Inc. | 313,455 | $2.92M | 0.10% | +218,383+229.7% | Added |
| Schonfeld Strategic Advisors LLC | 300,102 | $2.80M | 0.01% | +276,782+1,186.9% | Added |
| Logos Global Management LP | 300,000 | $2.80M | 0.19% | +300,000 | New |
| Barclays PLC | 292,325 | $2.72M | 0.00% | −54,860−15.8% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 282,025 | $2.63M | 0.06% | +282,025 | New |
| Arrowstreet Capital, Limited Partnership | 255,022 | $2.38M | 0.00% | +255,022 | New |
| Group One Trading, L.P. | 253,143 | $2.36M | 0.07% | +253,143 | New |
| Bank of New York Mellon Corp | 211,546 | $1.97M | 0.00% | −94,634−30.9% | Reduced |
| Stonepine Capital Management, LLC | 200,000 | $1.86M | 1.47% | −447,382−69.1% | Reduced |
| Man Group plc | 197,096 | $1.84M | 0.00% | +105,278+114.7% | Added |
| Fisher Asset Management, LLC | 191,823 | $1.79M | 0.00% | −28,340−12.9% | Reduced |
| UBS Group AG | 170,728 | $1.59M | 0.00% | −38,989−18.6% | Reduced |
| Norges Bank | 169,000 | $1.58M | 0.00% | +169,000 | New |
| Rafferty Asset Management, LLC | 157,010 | $1.46M | 0.01% | +29,430+23.1% | Added |
| Point72 Asset Management, L.P. | 156,206 | $1.46M | 0.00% | +156,206 | New |
| Massachusetts Financial Services Co | 150,925 | $1.41M | 0.00% | +150,925 | New |
| Catalytic Wealth RIA, LLC | 150,030 | $1.40M | 0.05% | +100,030+200.1% | Added |
| Sphera Funds Management Ltd. | 145,371 | $1.35M | 0.28% | −30,000−17.1% | Reduced |
| Russell Investments Group, Ltd. | 143,079 | $1.33M | 0.00% | −7,270−4.8% | Reduced |
| Gsa Capital Partners LLP | 142,809 | $1.33M | 0.11% | +142,809 | New |
| Swiss National Bank | 141,500 | $1.32M | 0.00% | +15,700+12.5% | Added |
| XTX Topco Ltd | 128,440 | $1.20M | 0.03% | +49,592+62.9% | Added |
| UBS Asset Management Americas Inc | 124,422 | $1.16M | 0.00% | +8,177+7.0% | Added |
| Invesco Ltd. | 123,994 | $1.16M | 0.00% | +25,952+26.5% | Added |
| Nomura Holdings Inc | 115,000 | $1.07M | 0.00% | +115,000 | New |
| Wells Fargo & Company | 114,716 | $1.07M | 0.00% | +33,248+40.8% | Added |
| Rhumbline Advisers | 111,679 | $1.04M | 0.00% | −10,266−8.4% | Reduced |
| Nomura Asset Management International Inc. | 110,000 | $1.02M | 0.00% | +110,000 | New |
| Price T Rowe Associates Inc | 102,456 | $955.0K | 0.00% | +22,723+28.5% | Added |
| Squarepoint Ops LLC | 100,612 | $937.7K | 0.00% | +100,612 | New |
| Oracle Investment Management Inc | 100,000 | $932.0K | 0.61% | +100,000 | New |
| Ameriprise Financial Inc | 87,073 | $811.5K | 0.00% | +87,073 | New |
| Alps Advisors Inc | 84,304 | $785.7K | 0.00% | +35,269+71.9% | Added |
| Perkins Capital Management Inc | 84,000 | $782.9K | 0.62% | +1,750+2.1% | Added |
| Virtus Investment Advisers, Inc. | 81,747 | $761.9K | 0.21% | +15,320+23.1% | Added |
| American Century Companies Inc | 78,925 | $735.6K | 0.00% | +45,060+133.1% | Added |
| Los Angeles Capital Management LLC | 100,314 | $706.2K | 0.00% | +1,425+1.4% | Added |
| California State Teachers Retirement System | 72,219 | $673.1K | 0.00% | +325+0.5% | Added |
| Alliancebernstein L.P. | 67,790 | $631.8K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 63,668 | $593.4K | 0.00% | +6,804+12.0% | Added |
| Tudor Investment Corp Et Al | 62,316 | $580.8K | 0.00% | +12,766+25.8% | Added |
| Profund Advisors LLC | 58,129 | $541.8K | 0.02% | +30,494+110.3% | Added |
| Susquehanna Portfolio Strategies, LLC | 57,379 | $534.8K | 0.01% | −35,176−38.0% | Reduced |
| Deutsche Bank AG | 57,010 | $531.3K | 0.00% | +15,506+37.4% | Added |
| Franklin Resources Inc | 52,726 | $491.4K | 0.00% | −3,424,300−98.5% | Reduced |
| Erste Asset Management GmbH | 51,200 | $479.7K | 0.00% | 00.0% | Unchanged |
| Graham Capital Management, L.P. | 50,355 | $469.3K | 0.02% | +50,355 | New |
| HSBC Holdings PLC | 49,333 | $455.3K | 0.00% | −60,448−55.1% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 45,613 | $423.8K | 0.00% | +5,335+13.2% | Added |
| MetLife Investment Management | 43,664 | $406.9K | 0.00% | +6,186+16.5% | Added |
| JPMorgan Chase & Co | 43,530 | $405.7K | 0.00% | −22,152−33.7% | Reduced |
| Brevan Howard Capital Management LP | 43,284 | $403.4K | 0.01% | +19,076+78.8% | Added |
| Lion Point Capital, LP | 42,000 | $391.4K | 2.03% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 39,490 | $368.0K | 0.00% | +2,195+5.9% | Added |
| ExodusPoint Capital Management, LP | 39,321 | $366.5K | 0.00% | −21,600−35.5% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 38,520 | $359.0K | 0.00% | +14,425+59.9% | Added |
| Canada Pension Plan Investment Board | 38,500 | $358.8K | 0.00% | +38,500 | New |
| SEI Investments Co | 37,514 | $349.6K | 0.00% | +37,514 | New |
| Intech Investment Management LLC | 36,058 | $336.1K | 0.00% | +4,790+15.3% | Added |
| Dark Forest Capital Management LP | 35,562 | $331.4K | 0.02% | +35,562 | New |
| Quest Partners LLC | 35,326 | $329.2K | 0.02% | −149,680−80.9% | Reduced |