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, Q1 2025
Institutional positions in Day One Biopharmaceuticals, Inc. as of Mar 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
- +21 vs. Q4 2024
- Shares held
- 94.2M
- +610.9K (+0.7%) vs. Q4 2024
- Total value
- $747.1M
- −$438.8M (−37.0%) vs. Q4 2024
- New holders
- 42
- 69 more added
- Sold out
- 21
- 45 more reduced
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2025
Shares, value and share of portfolio for each institution holding Day One Biopharmaceuticals, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Invesco Ltd. | 46,424 | $368.1K | 0.00% | +13,636+41.6% | Added |
| HSBC Holdings PLC | 50,177 | $383.4K | 0.00% | +11,594+30.0% | Added |
| Dynamic Technology Lab Private Ltd | 48,457 | $384.0K | 0.06% | +48,457 | New |
| Tudor Investment Corp Et Al | 50,794 | $402.8K | 0.00% | +50,794 | New |
| Intech Investment Management LLC | 51,164 | $405.7K | 0.00% | +16,276+46.7% | Added |
| Erste Asset Management GmbH | 51,200 | $413.2K | 0.01% | 00.0% | Unchanged |
| Wells Fargo & Company | 53,696 | $425.8K | 0.00% | +1,961+3.8% | Added |
| Los Angeles Capital Management LLC | 54,922 | $435.5K | 0.00% | +54,922 | New |
| California State Teachers Retirement System | 55,470 | $439.9K | 0.00% | 00.0% | Unchanged |
| Nebula Research & Development LLC | 57,132 | $453.1K | 0.04% | +37,328+188.5% | Added |
| Legal & General Group Plc | 60,565 | $480.3K | 0.00% | +2,942+5.1% | Added |
| JPMorgan Chase & Co | 61,536 | $488.0K | 0.00% | +1,109+1.8% | Added |
| Martingale Asset Management L P | 61,597 | $488.5K | 0.01% | −9,800−13.7% | Reduced |
| Quest Partners LLC | 61,952 | $491.3K | 0.05% | +58,556+1,724.3% | Added |
| Advisor Group Holdings, Inc. | 65,311 | $517.9K | 0.00% | +32,459+98.8% | Added |
| Schonfeld Strategic Advisors LLC | 65,525 | $519.6K | 0.00% | +65,525 | New |
| Alliancebernstein L.P. | 67,790 | $537.6K | 0.00% | −210−0.3% | Reduced |
| Two Sigma Investments, LP | 69,895 | $554.3K | 0.00% | −201,881−74.3% | Reduced |
| Alps Advisors Inc | 73,343 | $581.6K | 0.00% | −8,206−10.1% | Reduced |
| Rhumbline Advisers | 81,844 | $649.0K | 0.00% | +6,291+8.3% | Added |
| D. E. Shaw & Co., Inc. | 83,070 | $658.7K | 0.00% | −63,315−43.3% | Reduced |
| State of Wisconsin Investment Board | 83,258 | $660.2K | 0.00% | +24,832+42.5% | Added |
| Tema ETFs LLC | 91,123 | $722.6K | 0.22% | +5,362+6.3% | Added |
| NEOS Investment Management LLC | 91,123 | $722.6K | 0.01% | +5,362+6.3% | Added |
| Swiss National Bank | 107,500 | $852.5K | 0.00% | −10,300−8.7% | Reduced |
| Susquehanna International Group, LLP | 108,568 | $860.9K | 0.00% | +44,314+69.0% | Added |
| Macquarie Group Ltd | 110,000 | $872.0K | 0.00% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 112,279 | $890.4K | 0.00% | +36,700+48.6% | Added |
| UBS Oconnor LLC | 113,250 | $898.1K | 0.02% | +63,230+126.4% | Added |
| BIT Capital GmbH | 116,565 | $924.4K | 0.11% | −55,149−32.1% | Reduced |
| Rafferty Asset Management, LLC | 119,160 | $944.9K | 0.00% | −40,248−25.2% | Reduced |
| UBS Group AG | 124,176 | $984.7K | 0.00% | +59,949+93.3% | Added |
| Balyasny Asset Management LLC | 133,641 | $1.06M | 0.00% | +104,186+353.7% | Added |
| Hennion & Walsh Asset Management, Inc. | 137,968 | $1.09M | 0.05% | +16,801+13.9% | Added |
| Nuveen, LLC | 139,658 | $1.11M | 0.00% | +139,658 | New |
| Barclays PLC | 155,209 | $1.23M | 0.00% | +13,757+9.7% | Added |
| BNP Paribas Arbitrage, SA | 162,004 | $1.28M | 0.00% | +125,319+341.6% | Added |
| Citigroup Inc | 164,676 | $1.31M | 0.00% | +8,442+5.4% | Added |
| Norges Bank | 169,000 | $1.34M | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 185,733 | $1.47M | 0.00% | +53,459+40.4% | Added |
| Trexquant Investment LP | 204,782 | $1.62M | 0.02% | +116,810+132.8% | Added |
| Woodline Partners LP | 213,154 | $1.69M | 0.01% | −585,771−73.3% | Reduced |
| Bank of New York Mellon Corp | 248,380 | $1.97M | 0.00% | +3,551+1.5% | Added |
| Parkwood LLC | 275,000 | $2.18M | 0.21% | 00.0% | Unchanged |
| Fisher Asset Management, LLC | 275,207 | $2.18M | 0.00% | +186,075+208.8% | Added |
| Qube Research & Technologies Ltd | 280,784 | $2.23M | 0.00% | +96,128+52.1% | Added |
| Susquehanna Fundamental Investments, LLC | 322,875 | $2.56M | 0.04% | +322,875 | New |
| Kennedy Capital Management, Inc. | 327,691 | $2.60M | 0.06% | +133,779+69.0% | Added |
| Deutsche Bank AG | 334,522 | $2.65M | 0.00% | −24,398−6.8% | Reduced |
| Sphera Funds Management Ltd. | 334,987 | $2.66M | 0.66% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 348,440 | $2.76M | 0.00% | +104,700+43.0% | Added |
| Stonepine Capital Management, LLC | 348,820 | $2.77M | 3.21% | +113,820+48.4% | Added |
| Algert Global LLC | 371,380 | $2.95M | 0.07% | +371,380 | New |
| Charles Schwab Investment Management Inc | 528,148 | $4.19M | 0.00% | −7,353−1.4% | Reduced |
| Northern Trust Corp | 535,997 | $4.25M | 0.00% | −11,053−2.0% | Reduced |
| AQR Capital Management LLC | 618,627 | $4.91M | 0.01% | +530,429+601.4% | Added |
| Morgan Stanley | 709,415 | $5.63M | 0.00% | −370,853−34.3% | Reduced |
| DAFNA Capital Management LLC | 731,363 | $5.80M | 1.64% | 00.0% | Unchanged |
| EcoR1 Capital, LLC | 862,068 | $6.84M | 0.41% | 00.0% | Unchanged |
| Marshall Wace, LLP | 887,177 | $7.04M | 0.01% | −210,585−19.2% | Reduced |
| Parkman Healthcare Partners LLC | 1,043,162 | $8.27M | 0.98% | +42,688+4.3% | Added |
| Bank of America Corp | 1,046,756 | $8.30M | 0.00% | +1,026,222+4,997.7% | Added |
| Hudson Bay Capital Management LP | 1,150,400 | $9.12M | 0.06% | +230,292+25.0% | Added |
| Price T Rowe Associates Inc | 1,173,094 | $9.30M | 0.00% | −533,018−31.2% | Reduced |
| Boxer Capital Management, LLC | 1,189,943 | $9.44M | 2.84% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 1,302,965 | $10.3M | 0.00% | +375,948+40.6% | Added |
| Millennium Management LLC | 1,320,095 | $10.5M | 0.01% | +1,127,995+587.2% | Added |
| Citadel Advisors LLC | 1,339,018 | $10.6M | 0.01% | +727,705+119.0% | Added |
| Geode Capital Management, LLC | 1,540,465 | $12.2M | 0.00% | +77,483+5.3% | Added |
| Goldman Sachs Group Inc | 1,569,918 | $12.4M | 0.00% | +1,097,679+232.4% | Added |
| Polar Capital Holdings Plc | 2,350,000 | $18.6M | 0.12% | +2,165,000+1,170.3% | Added |
| Vestal Point Capital, LP | 2,598,127 | $20.6M | 1.47% | +1,158,127+80.4% | Added |
| State Street Corp | 2,706,699 | $21.5M | 0.00% | −394,978−12.7% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 2,960,740 | $23.5M | 0.47% | +364,707+14.0% | Added |
| Estuary Capital Management LP | 3,326,849 | $26.4M | 6.40% | −389,928−10.5% | Reduced |
| Braidwell LP | 3,536,853 | $28.0M | 0.99% | −1,337,000−27.4% | Reduced |
| Pictet Asset Management Holding SA | 3,635,580 | $28.8M | 0.03% | +145,516+4.2% | Added |
| Franklin Resources Inc | 4,018,370 | $31.9M | 0.01% | +135,418+3.5% | Added |
| Alyeska Investment Group, L.P. | 4,059,764 | $32.2M | 0.13% | +1,547,577+61.6% | Added |
| Ra Capital Management, L.P. | 5,755,577 | $45.6M | 0.76% | 00.0% | Unchanged |
| Vanguard Group Inc | 5,943,243 | $47.1M | 0.00% | +94,320+1.6% | Added |
| Atlas Venture Life Science Advisors, LLC | 6,430,257 | $51.0M | 9.77% | 00.0% | Unchanged |
| BlackRock, Inc. | 6,757,929 | $53.6M | 0.00% | +602,092+9.8% | Added |
| FMR LLC | 13,700,448 | $108.6M | 0.01% | +812,981+6.3% | Added |
| Fairmount Funds Management LLC | 0 | $0 | 0.00% | −3,103,448−100.0% | Sold out |
| TimesSquare Capital Management, LLC | 0 | $0 | 0.00% | −1,710,926−100.0% | Sold out |
| First Turn Management, LLC | 0 | $0 | 0.00% | −947,878−100.0% | Sold out |
| Adage Capital Partners GP, L.L.C. | 0 | $0 | 0.00% | −800,000−100.0% | Sold out |
| Wellington Management Group LLP | 0 | $0 | 0.00% | −731,303−100.0% | Sold out |
| Frazier Life Sciences Management, L.P. | 0 | $0 | 0.00% | −689,655−100.0% | Sold out |
| Essex Investment Management Co LLC | 0 | $0 | 0.00% | −207,574−100.0% | Sold out |
| Samsara BioCapital, LLC | 0 | $0 | 0.00% | −147,319−100.0% | Sold out |
| Jackson Creek Investment Advisors LLC | 0 | $0 | 0.00% | −103,592−100.0% | Sold out |
| Legato Capital Management LLC | 0 | $0 | 0.00% | −62,027−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −41,771−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −27,950−100.0% | Sold out |
| Virtus ETF Advisers LLC | 0 | $0 | 0.00% | −27,296−100.0% | Sold out |
| Sherbrooke Park Advisers LLC | 0 | $0 | 0.00% | −14,865−100.0% | Sold out |
| Vontobel Holding Ltd. | 0 | $0 | 0.00% | −10,944−100.0% | Sold out |
| TD Asset Management Inc | 0 | $0 | 0.00% | −10,796−100.0% | Sold out |