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 2024
Institutional positions in Day One Biopharmaceuticals, Inc. as of Jun 30, 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
- 157
- +10 vs. Q1 2024
- Shares held
- 74.7M
- +1.99M (+2.7%) vs. Q1 2024
- Total value
- $1.03B
- −$171.8M (−14.3%) vs. Q1 2024
- New holders
- 33
- 49 more added
- Sold out
- 23
- 48 more reduced
1 institution that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2024
Shares, value and share of portfolio for each institution holding Day One Biopharmaceuticals, Inc.; share changes are against Q1 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BIT Capital GmbH | 106,182 | $1.46M | 0.13% | 00.0% | Unchanged |
| Macquarie Group Ltd | 110,603 | $1.52M | 0.00% | +603+0.5% | Added |
| AQR Capital Management LLC | 113,020 | $1.56M | 0.00% | +94,703+517.0% | Added |
| Rafferty Asset Management, LLC | 149,655 | $2.06M | 0.01% | −43,569−22.5% | Reduced |
| Marshall Wace, LLP | 161,129 | $2.22M | 0.00% | +26,958+20.1% | Added |
| Morgan Stanley | 167,246 | $2.30M | 0.00% | −65,304−28.1% | Reduced |
| Millennium Management LLC | 167,765 | $2.31M | 0.00% | +138,757+478.3% | Added |
| Norges Bank | 169,000 | $2.33M | 0.00% | 00.0% | Unchanged |
| Laurion Capital Management LP | 171,887 | $2.37M | 0.08% | +6,904+4.2% | Added |
| Kennedy Capital Management, Inc. | 173,738 | $2.39M | 0.05% | +173,738 | New |
| Bank of America Corp | 177,666 | $2.45M | 0.00% | +50,077+39.2% | Added |
| Jane Street Group, LLC | 179,784 | $2.48M | 0.00% | +123,010+216.7% | Added |
| Squarepoint Ops LLC | 186,484 | $2.57M | 0.01% | +186,484 | New |
| Nuveen Asset Management, LLC | 190,906 | $2.63M | 0.00% | +15,131+8.6% | Added |
| Samsara BioCapital, LLC | 196,425 | $2.71M | 0.57% | 00.0% | Unchanged |
| Monashee Investment Management LLC | 200,000 | $2.76M | 0.36% | +200,000 | New |
| Deutsche Bank AG | 201,867 | $2.78M | 0.00% | +23,693+13.3% | Added |
| Bank of New York Mellon Corp | 208,396 | $2.87M | 0.00% | −6,987−3.2% | Reduced |
| D. E. Shaw & Co., Inc. | 224,340 | $3.09M | 0.00% | +121+0.1% | Added |
| Schonfeld Strategic Advisors LLC | 244,957 | $3.38M | 0.03% | +7,209+3.0% | Added |
| Candriam Luxembourg S.C.A. | 290,014 | $4.00M | 0.02% | 00.0% | Unchanged |
| Wellington Management Group LLP | 298,038 | $4.11M | 0.00% | +25,921+9.5% | Added |
| Two Sigma Investments, LP | 299,206 | $4.12M | 0.01% | +278,794+1,365.8% | Added |
| Sphera Funds Management Ltd. | 347,627 | $4.79M | 0.78% | −145,000−29.4% | Reduced |
| Citadel Advisors LLC | 369,608 | $5.09M | 0.01% | +322,343+682.0% | Added |
| PFM Health Sciences, LP | 396,644 | $5.47M | 0.30% | +41,393+11.7% | Added |
| Charles Schwab Investment Management Inc | 442,748 | $6.10M | 0.00% | −14,904−3.3% | Reduced |
| Point72 Asset Management, L.P. | 470,247 | $6.48M | 0.02% | +470,247 | New |
| Northern Trust Corp | 533,039 | $7.35M | 0.00% | −25,106−4.5% | Reduced |
| Ally Bridge Group (NY) LLC | 536,095 | $7.39M | 4.40% | +536,095 | New |
| Hudson Bay Capital Management LP | 555,108 | $7.65M | 0.06% | +445,108+404.6% | Added |
| DAFNA Capital Management LLC | 666,463 | $9.18M | 2.19% | 00.0% | Unchanged |
| Driehaus Capital Management LLC | 706,446 | $9.73M | 0.09% | −12,565−1.7% | Reduced |
| Woodline Partners LP | 707,531 | $9.75M | 0.09% | +434,993+159.6% | Added |
| Dimensional Fund Advisors LP | 888,117 | $12.2M | 0.00% | −93,455−9.5% | Reduced |
| Parkman Healthcare Partners LLC | 908,822 | $12.5M | 1.71% | +217,010+31.4% | Added |
| Polar Capital Holdings Plc | 935,000 | $12.9M | 0.08% | −250,000−21.1% | Reduced |
| Boxer Capital, LLC | 1,189,943 | $16.4M | 0.86% | 00.0% | Unchanged |
| Maverick Capital LtdSuperinvestorMaverick Capital | 1,211,138 | $16.7M | 0.32% | −45,432−3.6% | Reduced |
| Vestal Point Capital, LP | 1,250,000 | $17.2M | 1.28% | +1,250,000 | New |
| Geode Capital Management, LLC | 1,296,239 | $17.9M | 0.00% | −80,722−5.9% | Reduced |
| TimesSquare Capital Management, LLC | 1,688,535 | $23.3M | 0.37% | +53,390+3.3% | Added |
| Janus Henderson Group PLC | 1,839,269 | $25.4M | 0.01% | −193,115−9.5% | Reduced |
| Goldman Sachs Group Inc | 1,903,108 | $26.2M | 0.01% | −234,383−11.0% | Reduced |
| Price T Rowe Associates Inc | 2,350,880 | $32.4M | 0.00% | +51,116+2.2% | Added |
| Viking Global Investors LPSuperinvestorViking Global Investors | 2,558,563 | $35.3M | 0.14% | 00.0% | Unchanged |
| Estuary Capital Management LP | 2,635,270 | $36.3M | 11.71% | +1,024,133+63.6% | Added |
| FMR LLC | 2,661,444 | $36.7M | 0.00% | −1,742,897−39.6% | Reduced |
| State Street Corp | 2,826,820 | $39.0M | 0.00% | −68,063−2.4% | Reduced |
| Pictet Asset Management Holding SA | 2,851,574 | $39.3M | 0.05% | +476,437+20.1% | Added |
| Deerfield Management Company, L.P. (Series C) | 2,923,137 | $40.3M | 0.67% | +1,157,825+65.6% | Added |
| Braidwell LP | 3,035,904 | $41.8M | 1.31% | +862,200+39.7% | Added |
| Franklin Resources Inc | 3,782,370 | $52.1M | 0.02% | −24,420−0.6% | Reduced |
| BlackRock Inc. | 4,533,442 | $62.5M | 0.00% | −497,993−9.9% | Reduced |
| Vanguard Group Inc | 4,623,272 | $63.7M | 0.00% | −151,211−3.2% | Reduced |
| Atlas Venture Life Science Advisors, LLC | 6,430,257 | $88.6M | 9.33% | 00.0% | Unchanged |
| Ra Capital Management, L.P. | 7,871,721 | $108.5M | 1.43% | +61,869+0.8% | Added |
| First Turn Management, LLC | 0 | $0 | 0.00% | −1,318,207−100.0% | Sold out |
| Nicholas Investment Partners, LP | 0 | $0 | 0.00% | −361,767−100.0% | Sold out |
| Superstring Capital Management LP | 0 | $0 | 0.00% | −349,679−100.0% | Sold out |
| Propel Bio Management, LLC | 0 | $0 | 0.00% | −270,664−100.0% | Sold out |
| Altitude Crest Partners Inc. | 0 | $0 | 0.00% | −195,497−100.0% | Sold out |
| Simplify Asset Management Inc. | 0 | $0 | 0.00% | −175,018−100.0% | Sold out |
| Adage Capital Partners GP, L.L.C. | 0 | $0 | 0.00% | −159,000−100.0% | Sold out |
| Takeda Pharmaceutical Co Ltd | 0 | $0 | 0.00% | −85,840−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −53,152−100.0% | Sold out |
| Summit Rock Advisors, LP | 0 | $0 | 0.00% | −51,502−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −32,142−100.0% | Sold out |
| Legato Capital Management LLC | 0 | $0 | 0.00% | −32,029−100.0% | Sold out |
| American International Group, Inc. | 0 | $0 | 0.00% | −30,877−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −24,042−100.0% | Sold out |
| Nebula Research & Development LLC | 0 | $0 | 0.00% | −19,419−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −18,560−100.0% | Sold out |
| Principal Financial Group Inc | 0 | $0 | 0.00% | −17,977−100.0% | Sold out |
| Commonwealth Equity Services, LLC | 0 | $0 | 0.00% | −13,935−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −13,374−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −6,400−100.0% | Sold out |
| Metropolitan Life Insurance Co | 0 | $0 | 0.00% | −3,691−100.0% | Sold out |
| Northwestern Mutual Wealth Management Co | 0 | $0 | 0.00% | −14−100.0% | Sold out |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 0 | $0 | 0.00% | −12−100.0% | Sold out |
| Credit Suisse AG | – | – | – | – | Not filed |