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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 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.

Institutional holdersQ2 2024: 157 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 2024: $1.03B
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 2024

Shares, value and share of portfolio for each institution holding Day One Biopharmaceuticals, Inc.; share changes are against Q1 2024.

Institutions holding DAWN in Q2 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Ra Capital Management, L.P.7,871,721$108.5M1.43%+61,869+0.8%Added
Atlas Venture Life Science Advisors, LLC6,430,257$88.6M9.33%00.0%Unchanged
Vanguard Group Inc4,623,272$63.7M0.00%−151,211−3.2%Reduced
BlackRock Inc.4,533,442$62.5M0.00%−497,993−9.9%Reduced
Franklin Resources Inc3,782,370$52.1M0.02%−24,420−0.6%Reduced
Braidwell LP3,035,904$41.8M1.31%+862,200+39.7%Added
Deerfield Management Company, L.P. (Series C)2,923,137$40.3M0.67%+1,157,825+65.6%Added
Pictet Asset Management Holding SA2,851,574$39.3M0.05%+476,437+20.1%Added
State Street Corp2,826,820$39.0M0.00%−68,063−2.4%Reduced
FMR LLC2,661,444$36.7M0.00%−1,742,897−39.6%Reduced
Estuary Capital Management LP2,635,270$36.3M11.71%+1,024,133+63.6%Added
Viking Global Investors LPSuperinvestorViking Global Investors2,558,563$35.3M0.14%00.0%Unchanged
Price T Rowe Associates Inc2,350,880$32.4M0.00%+51,116+2.2%Added
Goldman Sachs Group Inc1,903,108$26.2M0.01%−234,383−11.0%Reduced
Janus Henderson Group PLC1,839,269$25.4M0.01%−193,115−9.5%Reduced
TimesSquare Capital Management, LLC1,688,535$23.3M0.37%+53,390+3.3%Added
Geode Capital Management, LLC1,296,239$17.9M0.00%−80,722−5.9%Reduced
Vestal Point Capital, LP1,250,000$17.2M1.28%+1,250,000New
Maverick Capital LtdSuperinvestorMaverick Capital1,211,138$16.7M0.32%−45,432−3.6%Reduced
Boxer Capital, LLC1,189,943$16.4M0.86%00.0%Unchanged
Polar Capital Holdings Plc935,000$12.9M0.08%−250,000−21.1%Reduced
Parkman Healthcare Partners LLC908,822$12.5M1.71%+217,010+31.4%Added
Dimensional Fund Advisors LP888,117$12.2M0.00%−93,455−9.5%Reduced
Woodline Partners LP707,531$9.75M0.09%+434,993+159.6%Added
Driehaus Capital Management LLC706,446$9.73M0.09%−12,565−1.7%Reduced
DAFNA Capital Management LLC666,463$9.18M2.19%00.0%Unchanged
Hudson Bay Capital Management LP555,108$7.65M0.06%+445,108+404.6%Added
Ally Bridge Group (NY) LLC536,095$7.39M4.40%+536,095New
Northern Trust Corp533,039$7.35M0.00%−25,106−4.5%Reduced
Point72 Asset Management, L.P.470,247$6.48M0.02%+470,247New
Charles Schwab Investment Management Inc442,748$6.10M0.00%−14,904−3.3%Reduced
PFM Health Sciences, LP396,644$5.47M0.30%+41,393+11.7%Added
Citadel Advisors LLC369,608$5.09M0.01%+322,343+682.0%Added
Sphera Funds Management Ltd.347,627$4.79M0.78%−145,000−29.4%Reduced
Two Sigma Investments, LP299,206$4.12M0.01%+278,794+1,365.8%Added
Wellington Management Group LLP298,038$4.11M0.00%+25,921+9.5%Added
Candriam Luxembourg S.C.A.290,014$4.00M0.02%00.0%Unchanged
Schonfeld Strategic Advisors LLC244,957$3.38M0.03%+7,209+3.0%Added
D. E. Shaw & Co., Inc.224,340$3.09M0.00%+121+0.1%Added
Bank of New York Mellon Corp208,396$2.87M0.00%−6,987−3.2%Reduced
Deutsche Bank AG201,867$2.78M0.00%+23,693+13.3%Added
Monashee Investment Management LLC200,000$2.76M0.36%+200,000New
Samsara BioCapital, LLC196,425$2.71M0.57%00.0%Unchanged
Nuveen Asset Management, LLC190,906$2.63M0.00%+15,131+8.6%Added
Squarepoint Ops LLC186,484$2.57M0.01%+186,484New
Jane Street Group, LLC179,784$2.48M0.00%+123,010+216.7%Added
Bank of America Corp177,666$2.45M0.00%+50,077+39.2%Added
Kennedy Capital Management, Inc.173,738$2.39M0.05%+173,738New
Laurion Capital Management LP171,887$2.37M0.08%+6,904+4.2%Added
Norges Bank169,000$2.33M0.00%00.0%Unchanged
Millennium Management LLC167,765$2.31M0.00%+138,757+478.3%Added
Morgan Stanley167,246$2.30M0.00%−65,304−28.1%Reduced
Marshall Wace, LLP161,129$2.22M0.00%+26,958+20.1%Added
Rafferty Asset Management, LLC149,655$2.06M0.01%−43,569−22.5%Reduced
AQR Capital Management LLC113,020$1.56M0.00%+94,703+517.0%Added
Macquarie Group Ltd110,603$1.52M0.00%+603+0.5%Added
BIT Capital GmbH106,182$1.46M0.13%00.0%Unchanged
HRT Financial LP98,624$1.36M0.01%+98,624New
Swiss National Bank95,400$1.31M0.00%00.0%Unchanged
Susquehanna International Group, LLP91,098$1.26M0.00%+16,944+22.8%Added
Rhumbline Advisers85,438$1.18M0.00%−4,289−4.8%Reduced
Two Sigma Advisers, LP84,300$1.16M0.00%+84,300New
Fisher Asset Management, LLC73,301$1.01M0.00%+4,890+7.1%Added
Renaissance Technologies LLC72,140$994.1K0.00%+72,140New
UBS Group AG70,083$965.7K0.00%−93,935−57.3%Reduced
UBS Asset Management Americas Inc69,730$960.9K0.00%+31,851+84.1%Added
Alps Advisors Inc68,170$939.4K0.01%+6,539+10.6%Added
Alliancebernstein L.P.68,000$937.0K0.00%00.0%Unchanged
Martingale Asset Management L P65,085$896.9K0.02%+11,204+20.8%Added
NEOS Investment Management LLC64,853$893.7K0.04%+20,430+46.0%Added
Hennion & Walsh Asset Management, Inc.64,359$886.9K0.05%+5,070+8.6%Added
JPMorgan Chase & Co60,453$833.0K0.00%−10,756−15.1%Reduced
Wells Fargo & Company56,936$784.6K0.00%+11,175+24.4%Added
Barclays PLC55,594$766.1K0.00%−11,872−17.6%Reduced
Legal & General Group Plc55,177$760.3K0.00%+1,753+3.3%Added
Tudor Investment Corp Et Al51,891$715.1K0.01%+8,301+19.0%Added
Erste Asset Management GmbH51,200$708.1K0.01%00.0%Unchanged
Manufacturers Life Insurance Company, The48,274$665.2K0.00%−2,094−4.2%Reduced
California State Teachers Retirement System47,381$652.9K0.00%−1,959−4.0%Reduced
Qube Research & Technologies Ltd45,652$629.1K0.00%+45,652New
J. Goldman & Co LP44,943$619.3K0.02%−16,384−26.7%Reduced
Mirae Asset Global ETFs Holdings Ltd.38,174$526.3K0.00%+38,174New
Voya Investment Management LLC35,789$493.2K0.00%−2,409−6.3%Reduced
ADAR1 Capital Management, LLC35,100$483.7K0.10%+35,100New
Citigroup Inc34,005$468.6K0.00%−137,045−80.1%Reduced
Invesco Ltd.31,224$430.3K0.00%−419−1.3%Reduced
MetLife Investment Management30,467$419.8K0.00%−2,976−8.9%Reduced
EntryPoint Capital, LLC28,803$396.9K0.18%+28,221+4,849.0%Added
State of Wisconsin Investment Board28,693$395.4K0.00%−1,591−5.3%Reduced
Corebridge Financial, Inc.27,924$384.8K0.00%+27,924New
Profund Advisors LLC27,607$380.4K0.01%−3,005−9.8%Reduced
Cetera Investment Advisers25,829$355.9K0.00%−1,336−4.9%Reduced
Virtus ETF Advisers LLC25,491$351.3K0.17%+19,413+319.4%Added
Verition Fund Management LLC23,653$325.9K0.00%+23,653New
Tower Research Capital LLC (TRC)23,649$325.9K0.01%+21,949+1,291.1%Added
Handelsbanken Fonder AB23,100$318.0K0.00%+5,700+32.8%Added
Prudential Financial Inc22,592$311.3K0.00%−146,930−86.7%Reduced
Algert Global LLC20,497$282.4K0.01%−4,545−18.1%Reduced
New York State Common Retirement Fund20,032$276.0K0.00%−46,196−69.8%Reduced
State Board of Administration of Florida Retirement System17,880$246.4K0.00%+7,230+67.9%Added