Day One Biopharmaceuticals IDAWN
13F holders, Q1 2025 (March 31)184holders +20
40new positions
21sold out
7famous investors
$7.93avg. 13F price*
At the end of Q1 2025, 184 institutions reported holding Day One Biopharmaceuticals I (DAWN) in their 13F filings, up 20 from Q4 2024. 40 opened new positions and 21 sold out. The largest holders were FMR LLC ($108.6M), BlackRock, Inc. ($53.6M) and Atlas Venture Life Science Advisors, LLC ($51.0M). 7 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Day One Biopharmaceuticals I
- CUSIP
- 23954D109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 40 | $10.3M |
| Exits | 21 | $109.5M |
All 13F filers, Q4 2024 → Q1 2025: 15,185,626 shares bought and 14,726,500 shares sold, net +459,126 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 184 holders
| FMR LLC | 0.01% | Add +6.3% | 13,700,448 | $108.6M |
| BlackRock, Inc. | 0.00% | Add +9.8% | 6,757,929 | $53.6M |
| Atlas Venture Life Science Advisors, LLC | 9.77% | No change | 6,430,257 | $51.0M |
| Vanguard Group Inc. | 0.00% | Add +1.6% | 5,943,243 | $47.1M |
| Ra Capital Management, L.P. | 0.76% | No change | 5,755,577 | $45.6M |
| Alyeska Investment Group, L.P. | 0.13% | Add +61.6% | 4,059,764 | $32.2M |
| Franklin Resources Inc. | 0.01% | Add +3.5% | 4,018,370 | $31.9M |
| Pictet Asset Management Holding SA | 0.03% | Add +4.2% | 3,635,580 | $28.8M |
| Braidwell LP | 1.46% | Reduce -27.4% | 3,536,853 | $28.0M |
| Estuary Capital Management LP | 6.40% | Reduce -10.5% | 3,326,849 | $26.4M |
| Deerfield Management Company, L.P. | 0.53% | Add +14.1% | 2,960,740 | $23.5M |
| State Street Corp. | 0.00% | Reduce -12.7% | 2,706,699 | $21.5M |
| Vestal Point Capital, LP | 1.47% | Add +80.4% | 2,598,127 | $20.6M |
| Polar Capital Holdings Plc | 0.11% | Add +1170.3% | 2,350,000 | $18.6M |
| Goldman Sachs Group Inc. | 0.00% | Add +232.4% | 1,569,918 | $12.4M |
| Geode Capital Management, LLC | 0.00% | Add +5.3% | 1,540,465 | $12.2M |
| Citadel Advisors | 0.01% | Add +119.0% | 1,339,018 | $10.6M |
| Millennium Management | 0.01% | Add +587.2% | 1,320,095 | $10.5M |
| Dimensional Fund Advisors LP | 0.00% | Add +40.5% | 1,302,965 | $10.3M |
| Boxer Capital Management, LLC | 2.84% | No change | 1,189,943 | $9.4M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -31.2% | 1,173,094 | $9.3M |
| Hudson Bay Capital Management LP | 0.07% | Add +25.0% | 1,150,400 | $9.1M |
| Bank of America Corp. | 0.00% | Add +4997.7% | 1,046,756 | $8.3M |
| Parkman Healthcare Partners LLC | 0.98% | Add +4.3% | 1,043,162 | $8.3M |
| Marshall Wace, LLP | 0.01% | Reduce -19.2% | 887,177 | $7.0M |
| EcoR1 Capital, LLC | 0.41% | No change | 862,068 | $6.8M |
| DAFNA Capital Management LLC | 1.67% | No change | 731,363 | $5.8M |
| Morgan Stanley | 0.00% | Reduce -34.3% | 709,415 | $5.6M |
| AQR Capital Management | 0.01% | Add +601.4% | 618,627 | $4.9M |
| Northern Trust Corp. | 0.00% | Reduce -2.0% | 535,997 | $4.3M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -1.4% | 528,148 | $4.2M |
| Algert Global LLC | 0.07% | New | 371,380 | $2.9M |
| Stonepine Capital Management, LLC | 2.69% | Add +48.4% | 348,820 | $2.8M |
| Renaissance Technologies | 0.00% | Add +43.0% | 348,440 | $2.8M |
| Sphera Funds Management LTD. | 0.66% | No change | 334,987 | $2.7M |
| Deutsche Bank AG | 0.00% | Reduce -6.8% | 334,522 | $2.7M |
| Kennedy Capital Management LLC | 0.06% | Add +69.0% | 327,691 | $2.6M |
| Susquehanna Fundamental Investments, LLC | 0.04% | New | 322,875 | $2.6M |
| Qube Research & Technologies Ltd | 0.00% | Add +52.1% | 280,784 | $2.2M |
| Fisher Asset Management | 0.00% | Add +208.8% | 275,207 | $2.2M |
| Parkwood LLC | 0.21% | No change | 275,000 | $2.2M |
| Bank of New York Mellon Corp | 0.00% | Add +1.4% | 248,380 | $2.0M |
| Woodline Partners LP | 0.01% | Reduce -73.3% | 213,154 | $1.7M |
| Trexquant Investment LP | 0.02% | Add +132.8% | 204,782 | $1.6M |
| Royal Bank of Canada | 0.00% | Add +40.4% | 185,733 | $1.5M |
| Norges Bank | 0.00% | No change | 169,000 | $1.3M |
| Citigroup Inc. | 0.00% | Add +5.4% | 164,676 | $1.3M |
| BNP Paribas Financial Markets | 0.00% | Add +341.6% | 162,004 | $1.3M |
| Barclays PLC | 0.00% | Add +9.7% | 155,209 | $1.2M |
| Nuveen, LLC | 0.00% | — | 139,658 | $1.1M |
| Hennion & Walsh Asset Management, Inc. | 0.05% | Add +13.9% | 137,968 | $1.1M |
| Balyasny Asset Management L.P. | 0.00% | Add +353.7% | 133,641 | $1.1M |
| UBS Group AG | 0.00% | Add +93.3% | 124,176 | $985K |
| Rafferty Asset Management, LLC | 0.00% | Reduce -25.3% | 119,160 | $945K |
| BIT Capital GmbH | 0.11% | Reduce -32.1% | 116,565 | $924K |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | 0.02% | Add +126.4% | 113,250 | $898K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +48.6% | 112,279 | $890K |
| Macquarie Group Ltd. | 0.00% | No change | 110,000 | $872K |
| Susquehanna International Group, LLP | 0.00% | Add +69.0% | 108,568 | $861K |
| Swiss National Bank | 0.00% | Reduce -8.7% | 107,500 | $852K |
| NEOS Investment Management LLC | 0.01% | Add +6.3% | 91,123 | $723K |
| Tema ETFs LLC | 0.22% | Add +6.3% | 91,123 | $723K |
| State of Wisconsin Investment Board | 0.00% | Add +42.5% | 83,258 | $660K |
| D. E. Shaw & Co. | 0.00% | Reduce -43.3% | 83,070 | $659K |
| Rhumbline Advisers | 0.00% | Add +8.3% | 81,844 | $649K |
| Alps Advisors Inc. | 0.00% | Reduce -10.1% | 73,343 | $582K |
| Two Sigma Investments, LP | 0.00% | Reduce -74.3% | 69,895 | $554K |
| Alliancebernstein L.P. | 0.00% | Reduce -0.3% | 67,790 | $538K |
| Schonfeld Strategic Advisors LLC | 0.00% | New | 65,525 | $520K |
| Osaic Holdings, Inc. | 0.00% | Add +98.8% | 65,311 | $518K |
| AlphaQuest LLC | 0.05% | Add +1724.3% | 61,952 | $491K |
| Martingale Asset Management L P | 0.01% | Reduce -13.7% | 61,597 | $488K |
| JPMorgan Chase & Co. | 0.00% | Add +1.8% | 61,536 | $488K |
| Legal & General Group Plc | 0.00% | Add +5.1% | 60,565 | $480K |
| Nebula Research & Development LLC | 0.04% | Add +188.5% | 57,132 | $453K |
| California State Teachers Retirement System | 0.00% | No change | 55,470 | $440K |
| Los Angeles Capital Management LLC | 0.00% | New | 54,922 | $436K |
| Wells Fargo & Company | 0.00% | Add +3.8% | 53,696 | $426K |
| Erste Asset Management GmbH | 0.01% | No change | 51,200 | $413K |
| Intech Investment Management LLC | 0.00% | Add +46.6% | 51,164 | $406K |
| Tudor Investment Corporation | 0.00% | New | 50,794 | $403K |
| Dynamic Technology Lab Private Ltd | 0.06% | New | 48,457 | $384K |
| HSBC Holdings PLC | 0.00% | Add +30.1% | 50,177 | $383K |
| Invesco Ltd. | 0.00% | Add +41.6% | 46,424 | $368K |
| Gsa Capital Partners LLP | 0.03% | Reduce -55.4% | 43,703 | $347K |
| Squarepoint Ops LLC | 0.00% | Add +37.6% | 41,326 | $328K |
| Man Group plc | 0.00% | Add +204.0% | 38,912 | $309K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +6.0% | 37,992 | $302K |
| Ieq Capital, LLC | 0.00% | New | 37,012 | $294K |
| Kodai Capital Management LP | 0.01% | New | 34,685 | $275K |
| SG Americas Securities, LLC | 0.00% | Reduce -49.7% | 34,409 | $273K |
| MetLife Investment Management, LLC | 0.00% | Reduce -1.9% | 33,610 | $267K |
| Pale Fire Capital SE | 0.03% | Add +98.0% | 31,693 | $251K |
| Handelsbanken Fonder AB | 0.00% | No change | 31,500 | $250K |
| HRT Financial LP | 0.00% | New | 31,487 | $249K |
| Jane Street Group, LLC | 0.00% | New | 30,910 | $245K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -36.8% | 29,708 | $236K |
| Virtus Investment Advisers, LLC | 0.06% | New | 28,030 | $222K |
| ADAR1 Capital Management, LLC | 0.04% | Reduce -47.1% | 28,023 | $222K |
| Verition Fund Management LLC | 0.00% | Reduce -19.3% | 27,546 | $218K |
"% of holder's portfolio" is DAWN's weight in each manager's 13F, not the share of Day One Biopharmaceuticals I the manager owns.