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Day One Biopharmaceuticals, Inc.

DAWNDelisted
Industry
Pharmaceutical Preparations
SEC CIK
0001845337

Day One Biopharmaceuticals, Inc. was delisted in 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 2023

Institutional positions in Day One Biopharmaceuticals, Inc. as of Jun 30, 2023. 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
140
+14 vs. Q1 2023
Shares held
78.8M
+17.6M (+28.7%) vs. Q1 2023
Total value
$941.0M
+$122.9M (+15.0%) vs. Q1 2023
New holders
39
60 more added
Sold out
25
23 more reduced

Compare with Q1 2023: 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.

Institutional holdersQ2 2023: 140 institutions
Q1 2021: 0 institutionsQ2 2021: 33 institutionsQ3 2021: 45 institutionsQ4 2021: 58 institutionsQ1 2022: 66 institutionsQ2 2022: 87 institutionsQ3 2022: 93 institutionsQ4 2022: 109 institutionsQ1 2023: 126 institutionsQ2 2023: 140 institutionsQ3 2023: 130 institutionsQ4 2023: 139 institutionsQ1 2024: 148 institutionsQ2 2024: 157 institutionsQ3 2024: 166 institutionsQ4 2024: 164 institutionsQ1 2025: 184 institutionsQ2 2025: 174 institutionsQ3 2025: 173 institutionsQ4 2025: 184 institutionsQ1 2026: 208 institutionsQ2 2026: 1 institution
Value heldQ2 2023: $941.0M
Q1 2021: $0Q2 2021: $418.3MQ3 2021: $452.9MQ4 2021: $707.6MQ1 2022: $429.6MQ2 2022: $1.06BQ3 2022: $1.21BQ4 2022: $1.30BQ1 2023: $938.2MQ2 2023: $941.0MQ3 2023: $951.5MQ4 2023: $1.12BQ1 2024: $1.21BQ2 2024: $1.03BQ3 2024: $1.28BQ4 2024: $1.19BQ1 2025: $747.2MQ2 2025: $562.2MQ3 2025: $603.9MQ4 2025: $758.9MQ1 2026: $1.85BQ2 2026: $3.55K
Institutions holding DAWN and their total value by quarter
QuarterHoldersValue
Q2 20261$3.55K
Q1 2026208$1.85B
Q4 2025184$758.9M
Q3 2025173$603.9M
Q2 2025174$562.2M
Q1 2025184$747.2M
Q4 2024164$1.19B
Q3 2024166$1.28B
Q2 2024157$1.03B
Q1 2024148$1.21B
Q4 2023139$1.12B
Q3 2023130$951.5M
Q2 2023140$941.0M
Q1 2023126$938.2M
Q4 2022109$1.30B
Q3 202293$1.21B
Q2 202287$1.06B
Q1 202266$429.6M
Q4 202158$707.6M
Q3 202145$452.9M
Q2 202133$418.3M
Q1 20210$0

Institutions, Q2 2023

Shares, value and share of portfolio for each institution holding Day One Biopharmaceuticals, Inc.; share changes are against Q1 2023.

Institutions holding DAWN in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Ra Capital Management, L.P.7,809,852$93.2M1.76%+769,230+10.9%Added
Atlas Venture Life Science Advisors, LLC7,608,394$90.8M11.31%00.0%Unchanged
FMR LLC7,559,903$90.3M0.01%−1,012,280−11.8%Reduced
Vanguard Group Inc4,283,664$51.1M0.00%+1,151,683+36.8%Added
Franklin Resources Inc4,065,668$48.5M0.02%+658,797+19.3%Added
BlackRock Inc.3,564,733$42.6M0.00%+1,306,238+57.8%Added
Braidwell LP3,361,813$40.1M1.31%+201,918+6.4%Added
State Street Corp3,354,326$40.1M0.00%+1,097,535+48.6%Added
Viking Global Investors LPSuperinvestorViking Global Investors2,558,563$30.5M0.13%+1,000,000+64.2%Added
Canaan Partners XI LLC2,548,403$30.4M21.55%00.0%Unchanged
Adage Capital Partners GP, L.L.C.2,442,500$29.2M0.06%+1,702,500+230.1%Added
Goldman Sachs Group Inc2,392,523$28.6M0.01%+109,187+4.8%Added
Price T Rowe Associates Inc2,309,731$27.6M0.00%+644,980+38.7%Added
Nicholas Investment Partners, LP2,237,111$26.7M1.83%+633,721+39.5%Added
Polar Capital Holdings Plc1,774,615$21.2M0.15%+375,067+26.8%Added
Deerfield Management Company, L.P. (Series C)1,269,992$15.2M0.32%+1,269,992New
Boxer Capital, LLC1,189,943$14.2M0.66%00.0%Unchanged
PFM Health Sciences, LP1,147,140$13.7M0.55%+1,147,140New
Baker Bros. Advisors LP1,000,000$11.9M0.07%+1,000,000New
Geode Capital Management, LLC925,216$11.0M0.00%+336,740+57.2%Added
TimesSquare Capital Management, LLC805,700$9.62M0.14%+805,700New
Marshall Wace, LLP789,632$9.43M0.02%+789,632New
Citadel Advisors LLC772,156$9.22M0.01%+378,072+95.9%Added
Commodore Capital LP739,661$8.83M0.99%00.0%Unchanged
Janus Henderson Group PLC687,510$8.21M0.01%+124,716+22.2%Added
Logos Global Management LP650,000$7.76M1.07%+650,000New
Sphera Funds Management Ltd.530,000$6.33M1.36%+530,000New
Verition Fund Management LLC511,266$6.10M0.10%+481,935+1,643.1%Added
DAFNA Capital Management LLC507,100$6.05M1.66%+507,100New
Artal Group S.A.500,000$5.97M0.19%+500,000New
Millennium Management LLC488,124$5.83M0.01%+268,454+122.2%Added
Driehaus Capital Management LLC478,106$5.71M0.07%+6,222+1.3%Added
Northern Trust Corp432,592$5.17M0.00%+213,071+97.1%Added
Parkman Healthcare Partners LLC428,279$5.11M0.89%+28,059+7.0%Added
Alyeska Investment Group, L.P.390,167$4.66M0.04%+125,000+47.1%Added
Nuveen Asset Management, LLC352,766$4.21M0.00%−146,025−29.3%Reduced
Charles Schwab Investment Management Inc322,088$3.85M0.00%+119,421+58.9%Added
Rafferty Asset Management, LLC291,008$3.47M0.02%+99,563+52.0%Added
Candriam Luxembourg S.C.A.290,014$3.46M0.03%+99,821+52.5%Added
Morgan Stanley237,704$2.84M0.00%+53,785+29.2%Added
Bank of America Corp213,472$2.55M0.00%−20,118−8.6%Reduced
D. E. Shaw & Co., Inc.213,416$2.55M0.00%−210,963−49.7%Reduced
Woodline Partners LP211,000$2.52M0.03%+59,972+39.7%Added
Monashee Investment Management LLC199,900$2.39M0.57%+199,900New
Samsara BioCapital, LLC196,425$2.35M0.41%00.0%Unchanged
ExodusPoint Capital Management, LP187,185$2.23M0.03%+187,185New
Dimensional Fund Advisors LP183,178$2.19M0.00%−180,881−49.7%Reduced
Bank of New York Mellon Corp179,909$2.15M0.00%+68,278+61.2%Added
Norges Bank169,000$2.02M0.00%00.0%Unchanged
Deutsche Bank AG167,918$2.00M0.00%−417−0.2%Reduced
Squarepoint Ops LLC161,786$1.93M0.01%−62,191−27.8%Reduced
Barclays PLC144,403$1.72M0.00%+70,834+96.3%Added
Renaissance Technologies LLC139,164$1.66M0.00%−239,936−63.3%Reduced
Point72 Asset Management, L.P.131,000$1.56M0.01%+131,000New
Schonfeld Strategic Advisors LLC115,518$1.38M0.01%+10,578+10.1%Added
Wellington Management Group LLP112,010$1.34M0.00%+112,010New
Swiss National Bank111,300$1.33M0.00%+111,300New
AlphaCentric Advisors LLC110,000$1.31M0.73%+110,000New
Macquarie Group Ltd110,000$1.31M0.00%00.0%Unchanged
Citigroup Inc96,431$1.15M0.00%−56,567−37.0%Reduced
Wells Fargo & Company90,961$1.09M0.00%+33,403+58.0%Added
Apis Capital Advisors, LLC90,000$1.07M1.08%+90,000New
Susquehanna International Group, LLP80,070$956.0K0.00%−21,208−20.9%Reduced
CVI Holdings, LLC80,000$955.2K1.01%+80,000New
New York State Common Retirement Fund73,066$872.4K0.00%+18,831+34.7%Added
Jump Financial, LLC70,031$836.2K0.03%−30,357−30.2%Reduced
JPMorgan Chase & Co67,584$807.0K0.00%+45,373+204.3%Added
Rhumbline Advisers66,261$791.2K0.00%+22,265+50.6%Added
Manufacturers Life Insurance Company, The63,713$760.7K0.00%+8,464+15.3%Added
Alps Advisors Inc62,561$747.0K0.01%+14,078+29.0%Added
California State Teachers Retirement System61,311$732.1K0.00%+51,017+495.6%Added
Credit Suisse AG57,402$685.4K0.00%+57,402New
Healthcare of Ontario Pension Plan Trust Fund54,000$644.8K0.00%00.0%Unchanged
Profund Advisors LLC52,632$628.4K0.03%+17,303+49.0%Added
Erste Asset Management GmbH51,200$628.2K0.01%00.0%Unchanged
Legal & General Group Plc49,100$586.3K0.00%+46,515+1,799.4%Added
Algert Global LLC49,002$585.1K0.03%+31,622+181.9%Added
State of Wisconsin Investment Board46,196$551.6K0.00%+46,196New
Legato Capital Management LLC43,688$521.6K0.07%+13,696+45.7%Added
Alliancebernstein L.P.43,310$517.1K0.00%+5,910+15.8%Added
Bank of Montreal37,895$507.4K0.00%+37,895New
Davidson Kempner Capital Management LP40,000$477.2K0.01%+40,000New
Voya Investment Management LLC36,787$439.2K0.00%+8,889+31.9%Added
Jane Street Group, LLC36,611$437.1K0.00%−61,984−62.9%Reduced
Fisher Asset Management, LLC36,208$432.3K0.00%00.0%Unchanged
Mirae Asset Global Investments Co., Ltd.35,045$421.7K0.00%+12,647+56.5%Added
Martingale Asset Management L P30,042$358.7K0.01%−1,900−5.9%Reduced
Hennion & Walsh Asset Management, Inc.28,389$339.0K0.02%+28,389New
Tudor Investment Corp Et Al28,163$336.3K0.01%+17,035+153.1%Added
TD Asset Management Inc27,598$329.5K0.00%00.0%Unchanged
MetLife Investment Management26,406$315.3K0.00%+10,833+69.6%Added
Vontobel Holding Ltd.23,800$284.2K0.00%+23,800New
American International Group, Inc.23,697$282.9K0.00%+10,333+77.3%Added
Dynamic Technology Lab Private Ltd23,355$279.0K0.04%−17,796−43.2%Reduced
SG Americas Securities, LLC23,297$278.0K0.00%+6,140+35.8%Added
XTX Topco Ltd17,049$203.6K0.04%−3,533−17.2%Reduced
Glenmede Trust Co NA15,209$203.3K0.00%00.0%Unchanged
Two Sigma Advisers, LP16,400$195.8K0.00%+16,400New
Principal Financial Group Inc16,212$193.6K0.00%+2,499+18.2%Added
Invesco Ltd.16,094$192.2K0.00%+16,094New