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

050100150200250 Q1 2024: 148Q1 2024Q2 2024: 157Q2 2024Q3 2024: 166Q3 2024Q4 2024: 164Q4 2024Q1 2025: 184Q1 2025Q2 2025: 174Q2 2025Q3 2025: 172Q3 2025Q4 2025: 184Q4 2025Q1 2026: 208Q1 2026Q2 2026: 1Q2 2026

Total Exit/New Position Q4 2024 → Q1 2025

InstitutionsTotal Value
New Positions40$10.3M
Exits21$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
Cetera Investment Advisers 0.00% Reduce -14.5% 27,000 $214K
Corebridge Financial, Inc. 0.00% Add +4.0% 26,825 $213K
Bridgefront Capital, LLC 0.06% Add +39.6% 26,345 $209K
Allianz Asset Management GmbH 0.00% New 25,000 $198K
Profund Advisors LLC 0.01% Reduce -19.1% 24,603 $195K
Diametric Capital, LP 0.23% Add +128.2% 24,476 $194K
ExodusPoint Capital Management, LP 0.00% Reduce -89.0% 23,737 $188K
Cwm, LLC 0.00% Add +16774.4% 21,768 $173K
Janus Henderson Group PLC 0.00% Reduce -98.4% 21,300 $172K
China Universal Asset Management Co., Ltd. 0.01% Reduce -4.9% 20,330 $161K
Axq Capital, LP 0.06% New 19,030 $151K
Caption Management, LLC 0.01% New 18,534 $147K
Bayesian Capital Management, LP 0.02% New 18,000 $143K
Optimize Financial Inc. 0.05% Add +16.0% 17,960 $142K
State Board of Administration of Florida Retirement System 0.00% No change 17,880 $142K
Engineers Gate Manager LP 0.00% New 17,291 $137K
Integrated Wealth Concepts LLC 0.00% Reduce -0.8% 17,138 $136K
Corton Capital Inc. 0.43% New 16,447 $130K
ProShare Advisors LLC 0.00% Reduce -15.3% 16,424 $130K
Russell Investments Group, Ltd. 0.00% Add +326700.0% 16,340 $130K
Arizona State Retirement System 0.00% Reduce -8.5% 15,902 $126K
SteelPeak Wealth, LLC 0.01% Reduce -0.3% 15,750 $125K
Cerity Partners LLC 0.00% New 14,999 $119K
Teacher Retirement System of Texas 0.00% Reduce -16.0% 14,971 $119K
Mariner, LLC 0.00% Add +27.6% 14,885 $118K
Exchange Traded Concepts, LLC 0.00% Add +19.6% 14,693 $117K
Voya Investment Management LLC 0.00% Reduce -8.4% 14,475 $115K
American Century Companies Inc. 0.00% New 14,415 $114K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% No change 14,269 $113K
Ameriprise Financial Inc. 0.00% Reduce -24.7% 14,255 $113K
Twinbeech Capital LP 0.00% New 12,998 $103K
Two Sigma Advisers, LP 0.00% Reduce -88.0% 12,800 $102K
Police & Firemen's Retirement System of New Jersey 0.00% No change 12,549 $100K
Cibc World Markets Corp. 0.00% New 12,150 $96K
New York State Common Retirement Fund 0.00% No change 12,132 $96K
VIRGINIA RETIREMENT SYSTEMS ET Al 0.00% — 12,100 $96K
CenterBook Partners LP 0.01% Reduce -88.3% 11,836 $94K
KLP Kapitalforvaltning As 0.00% No change 11,800 $94K
Magnetar Financial LLC 0.00% New 11,303 $90K
Wealth Enhancement Advisory Services, LLC 0.00% New 11,154 $88K
E Fund Management Co., Ltd. 0.00% Reduce -1.2% 11,136 $88K
Pallas Capital Advisors LLC 0.00% New 11,005 $87K
Quantbot Technologies LP 0.00% New 10,295 $82K
Ameritas Investment Partners, Inc. 0.00% No change 5,085 $40K
Group One Trading LLC 0.00% New 4,444 $35K
Mirae Asset Global Investments Co., Ltd. 0.00% Add +0.9% 3,391 $27K
Tsfg, LLC 0.01% No change 3,400 $27K
Quintet Private Bank (Europe) S.A. 0.00% No change 3,313 $26K
GF Fund Management Co. LTD. 0.00% Add +22.0% 2,582 $20K
ANTIPODES PARTNERS Ltd 0.00% New 2,043 $16K
Federation des caisses Desjardins du Quebec 0.00% No change 2,024 $16K
Tower Research Capital LLC (TRC) 0.00% Reduce -82.0% 1,918 $15K
Amalgamated Bank 0.00% No change 1,782 $14K
Simplex Trading, LLC 0.00% New 1,665 $13K
Aster Capital Management (DIFC) Ltd 0.00% Add +188.3% 986 $9K
Nisa Investment Advisors, LLC 0.00% Reduce -4.9% 1,000 $8K
Comerica Bank 0.00% Add +175.4% 950 $8K
Jones Financial Companies LLLP 0.00% New 363 $3K
EverSource Wealth Advisors, LLC 0.00% Add +2553.8% 345 $3K
Washington Trust Advisors, Inc. 0.00% No change 342 $3K
Abound Financial, LLC 0.00% New 327 $3K
Steward Partners Investment Advisory, LLC 0.00% New 300 $2K
GAMMA Investing LLC 0.00% Add +1389.5% 283 $2K
Daiwa Securities Group Inc. 0.00% No change 296 $2K
Signaturefd, LLC 0.00% New 246 $2K
Coldstream Capital Management Inc. 0.00% New 205 $2K
Sterling Capital Management LLC 0.00% Reduce -36.9% 147 $1K
Lindbrook Capital, LLC 0.00% New 142 $1K
Bellevue Asset Management, LLC 0.00% No change 129 $1K
Rothschild Investment LLC 0.00% Add +90.0% 95 $753
True Wealth Design, LLC 0.00% New 80 $635
SBI Securities Co., Ltd. 0.00% No change 79 $626
Larson Financial Group LLC 0.00% New 76 $603
Global Trust Asset Management, LLC 0.00% No change 50 $397
Blue Trust, Inc. 0.00% New 44 $349
Caitong International Asset Management Co., Ltd 0.00% New 43 $341
Parkside Financial Bank & Trust 0.00% New 40 $318
Smartleaf Asset Management LLC 0.00% New 24 $193
IFP Advisors, Inc 0.00% Reduce -11.1% 24 $190
Allworth Financial LP 0.00% Add +283.3% 23 $182
US Bancorp \de 0.00% Reduce -96.5% 20 $159
Parallel Advisors, LLC 0.00% No change 4 $32
Farther Finance Advisors, LLC 0.00% Reduce -85.7% 1 $8
Covestor Ltd 0.00% Add +314.3% 29 $0

"% of holder's portfolio" is DAWN's weight in each manager's 13F, not the share of Day One Biopharmaceuticals I the manager owns.