Day One Biopharmaceuticals IDAWN
13F holders, Q2 2025 (June 30)174holders −10
26new positions
34sold out
8famous investors
$6.50avg. 13F price*
At the end of Q2 2025, 174 institutions reported holding Day One Biopharmaceuticals I (DAWN) in their 13F filings, down 10 from Q1 2025. 26 opened new positions and 34 sold out. The largest holders were FMR LLC ($73.7M), BlackRock, Inc. ($63.9M) and Atlas Venture Life Science Advisors, LLC ($41.8M). 8 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Steve Cohen (0.0% of Point72 Asset Management's portfolio).
- Company
- Day One Biopharmaceuticals I
- CUSIP
- 23954D109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 26 | $13.9M |
| Exits | 34 | $93.5M |
All 13F filers, Q1 2025 → Q2 2025: 11,708,616 shares bought and 19,557,483 shares sold, net −7,848,867 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 174 holders
| FMR LLC | 0.00% | Reduce -17.2% | 11,342,699 | $73.7M |
| BlackRock, Inc. | 0.00% | Add +45.5% | 9,830,431 | $63.9M |
| Atlas Venture Life Science Advisors, LLC | 6.31% | No change | 6,430,257 | $41.8M |
| Vanguard Group Inc. | 0.00% | Add +3.9% | 6,176,495 | $40.1M |
| Franklin Resources Inc. | 0.01% | Add +2.0% | 4,097,625 | $26.6M |
| Deerfield Management Company, L.P. | 0.49% | Add +25.8% | 3,723,131 | $24.2M |
| Pictet Asset Management Holding SA | 0.02% | Add +2.4% | 3,722,732 | $24.2M |
| Alyeska Investment Group, L.P. | 0.07% | Reduce -25.8% | 3,012,187 | $19.6M |
| Vestal Point Capital, LP | 1.03% | Add +15.5% | 3,000,000 | $19.5M |
| State Street Corp. | 0.00% | Reduce -0.6% | 2,689,686 | $17.5M |
| Braidwell LP | 0.68% | Reduce -38.3% | 2,181,598 | $14.2M |
| Polar Capital Holdings Plc | 0.07% | Reduce -10.3% | 2,109,177 | $13.7M |
| Geode Capital Management, LLC | 0.00% | Add +11.2% | 1,712,429 | $11.1M |
| Goldman Sachs Group Inc. | 0.00% | Add +7.7% | 1,691,286 | $11.0M |
| Dimensional Fund Advisors LP | 0.00% | Add +8.7% | 1,416,553 | $9.2M |
| Morgan Stanley | 0.00% | Add +90.7% | 1,353,148 | $8.8M |
| Hudson Bay Capital Management LP | 0.06% | Add +12.7% | 1,296,700 | $8.4M |
| Millennium Management | 0.01% | Reduce -8.5% | 1,207,802 | $7.9M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -4.5% | 1,120,631 | $7.3M |
| Renaissance Technologies | 0.01% | Add +187.2% | 1,000,540 | $6.5M |
| Bank of America Corp. | 0.00% | Reduce -7.8% | 965,423 | $6.3M |
| Qube Research & Technologies Ltd | 0.01% | Add +236.3% | 944,202 | $6.1M |
| Algert Global LLC | 0.12% | Add +144.0% | 906,042 | $5.9M |
| DAFNA Capital Management LLC | 1.60% | Add +20.2% | 879,163 | $5.7M |
| EcoR1 Capital, LLC | 0.33% | No change | 862,068 | $5.6M |
| Citadel Advisors | 0.00% | Reduce -47.5% | 703,644 | $4.6M |
| Northern Trust Corp. | 0.00% | Add +14.0% | 611,161 | $4.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +9.6% | 578,763 | $3.8M |
| J. Goldman & Co LP | 0.11% | New | 557,480 | $3.6M |
| Parkman Healthcare Partners LLC | 0.38% | Reduce -52.1% | 500,000 | $3.3M |
| Kennedy Capital Management LLC | 0.07% | Add +38.4% | 453,520 | $2.9M |
| Stonepine Capital Management, LLC | 2.88% | Add +29.0% | 450,000 | $2.9M |
| Point72 Asset Management | 0.01% | New | 391,280 | $2.5M |
| Barclays PLC | 0.00% | Add +124.3% | 348,109 | $2.3M |
| Deutsche Bank AG | 0.00% | Reduce -2.8% | 325,288 | $2.1M |
| ExodusPoint Capital Management, LP | 0.03% | Add +1249.0% | 320,217 | $2.1M |
| Bank of New York Mellon Corp | 0.00% | Add +23.9% | 307,853 | $2.0M |
| Y-Intercept (Hong Kong) Ltd | 0.04% | New | 281,528 | $1.8M |
| AQR Capital Management | 0.00% | Reduce -54.8% | 279,850 | $1.8M |
| Parkwood LLC | 0.16% | No change | 275,000 | $1.8M |
| Susquehanna Fundamental Investments, LLC | 0.05% | Reduce -18.4% | 263,313 | $1.7M |
| Fisher Asset Management | 0.00% | Reduce -19.3% | 221,983 | $1.4M |
| Cubist Systematic Strategies, LLC | 0.01% | New | 193,857 | $1.3M |
| Schroder Investment Management Group | 0.00% | New | 180,133 | $1.2M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +56.2% | 175,416 | $1.1M |
| Sphera Funds Management LTD. | 0.30% | Reduce -47.6% | 175,371 | $1.1M |
| Royal Bank of Canada | 0.00% | Reduce -5.8% | 174,974 | $1.1M |
| Norges Bank | 0.00% | No change | 169,000 | $1.1M |
| Nuveen, LLC | 0.00% | Add +7.7% | 150,372 | $977K |
| National Philanthropic Trust | 0.01% | New | 150,000 | $975K |
| Russell Investments Group, Ltd. | 0.00% | Add +777.9% | 143,453 | $932K |
| State of Wisconsin Investment Board | 0.00% | Add +63.7% | 136,276 | $886K |
| HSBC Holdings PLC | 0.00% | Add +162.4% | 131,668 | $846K |
| Swiss National Bank | 0.00% | Add +17.0% | 125,800 | $818K |
| BNP Paribas Financial Markets | 0.00% | Reduce -22.6% | 125,462 | $816K |
| Tema ETFs LLC | 0.21% | Add +36.4% | 124,310 | $808K |
| NEOS Investment Management LLC | 0.01% | Add +36.4% | 124,310 | $808K |
| Rhumbline Advisers | 0.00% | Add +41.8% | 116,060 | $754K |
| Trexquant Investment LP | 0.01% | Reduce -43.6% | 115,427 | $750K |
| Macquarie Group Ltd. | 0.00% | No change | 110,000 | $715K |
| Citigroup Inc. | 0.00% | Reduce -34.2% | 108,371 | $704K |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | 0.02% | Reduce -5.3% | 107,249 | $697K |
| Woodline Partners LP | 0.00% | Reduce -52.8% | 100,516 | $653K |
| Susquehanna International Group, LLP | 0.00% | Reduce -7.4% | 100,502 | $653K |
| Schonfeld Strategic Advisors LLC | 0.00% | Add +52.0% | 99,590 | $647K |
| Rafferty Asset Management, LLC | 0.00% | Reduce -17.2% | 98,691 | $641K |
| Hennion & Walsh Asset Management, Inc. | 0.03% | Reduce -29.8% | 96,821 | $629K |
| UBS Group AG | 0.00% | Reduce -27.9% | 89,475 | $582K |
| JPMorgan Chase & Co. | 0.00% | Add +44.8% | 89,102 | $579K |
| Dynamic Technology Lab Private Ltd | 0.07% | Add +71.8% | 83,223 | $541K |
| Los Angeles Capital Management LLC | 0.00% | Add +49.8% | 82,257 | $535K |
| D. E. Shaw & Co. | 0.00% | Reduce -2.1% | 81,303 | $528K |
| GC Wealth Management RIA, LLC | 0.04% | New | 80,000 | $520K |
| Dark Forest Capital Management LP | 0.02% | New | 78,422 | $510K |
| Wells Fargo & Company | 0.00% | Add +35.1% | 72,567 | $472K |
| Invesco Ltd. | 0.00% | Add +47.6% | 68,507 | $445K |
| Alliancebernstein L.P. | 0.00% | No change | 67,790 | $441K |
| Virtus Investment Advisers, LLC | 0.15% | Add +137.0% | 66,427 | $432K |
| Gsa Capital Partners LLP | 0.03% | Add +45.4% | 63,546 | $413K |
| Nebula Research & Development LLC | 0.03% | Add +6.2% | 60,665 | $394K |
| DRW Securities, LLC | 0.03% | New | 57,804 | $376K |
| Legal & General Group Plc | 0.00% | Reduce -6.1% | 56,864 | $370K |
| Man Group plc | 0.00% | Add +46.1% | 56,862 | $370K |
| California State Teachers Retirement System | 0.00% | Add +1.2% | 56,120 | $365K |
| Alps Advisors Inc. | 0.00% | Reduce -25.4% | 54,708 | $356K |
| Erste Asset Management GmbH | 0.00% | No change | 51,200 | $331K |
| Diametric Capital, LP | 0.17% | Add +104.0% | 49,941 | $325K |
| Intech Investment Management LLC | 0.00% | Reduce -11.3% | 45,397 | $295K |
| MetLife Investment Management, LLC | 0.00% | Add +32.2% | 44,442 | $289K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +16.5% | 44,244 | $287K |
| Manufacturers Life Insurance Company, The | 0.00% | Add +28.6% | 38,204 | $248K |
| Tudor Investment Corporation | 0.00% | Reduce -28.4% | 36,393 | $237K |
| Martingale Asset Management L P | 0.01% | Reduce -43.2% | 35,000 | $228K |
| Pale Fire Capital SE | 0.02% | Add +9.9% | 34,843 | $226K |
| Knott David M Jr | 0.10% | New | 33,714 | $219K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +130.8% | 32,939 | $214K |
| Osaic Holdings, Inc. | 0.00% | Reduce -49.6% | 32,881 | $214K |
| Bayesian Capital Management, LP | 0.03% | Add +56.1% | 28,100 | $183K |
| ADAR1 Capital Management, LLC | 0.03% | No change | 28,023 | $182K |
| Ieq Capital, LLC | 0.00% | Reduce -24.5% | 27,948 | $182K |
"% of holder's portfolio" is DAWN's weight in each manager's 13F, not the share of Day One Biopharmaceuticals I the manager owns.