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Day One Biopharmaceuticals, Inc.

DAWNDelisted Apr 23, 2026
Industry
Pharmaceutical Preparations
SEC CIK
0001845337

Day One Biopharmaceuticals, Inc. was delisted on Apr 23, 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, Q3 2023

Institutional positions in Day One Biopharmaceuticals, Inc. as of Sep 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
130
−9 vs. Q2 2023
Shares held
77.5M
−1.25M (−1.6%) vs. Q2 2023
Total value
$951.5M
+$10.6M (+1.1%) vs. Q2 2023
New holders
13
56 more added
Sold out
22
35 more reduced

1 institution that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2023: 130 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 heldQ3 2023: $951.5M
Q1 2021: $0Q2 2021: $401.1MQ3 2021: $452.9MQ4 2021: $698.3MQ1 2022: $429.6MQ2 2022: $1.06BQ3 2022: $1.21BQ4 2022: $1.29BQ1 2023: $818.1MQ2 2023: $941.0MQ3 2023: $951.5MQ4 2023: $1.12BQ1 2024: $1.20BQ2 2024: $1.03BQ3 2024: $1.28BQ4 2024: $1.19BQ1 2025: $747.1MQ2 2025: $561.1MQ3 2025: $603.5MQ4 2025: $758.4MQ1 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$758.4M
Q3 2025173$603.5M
Q2 2025174$561.1M
Q1 2025184$747.1M
Q4 2024164$1.19B
Q3 2024166$1.28B
Q2 2024157$1.03B
Q1 2024148$1.20B
Q4 2023139$1.12B
Q3 2023130$951.5M
Q2 2023140$941.0M
Q1 2023126$818.1M
Q4 2022109$1.29B
Q3 202293$1.21B
Q2 202287$1.06B
Q1 202266$429.6M
Q4 202158$698.3M
Q3 202145$452.9M
Q2 202133$401.1M
Q1 20210$0

Institutions, Q3 2023

Shares, value and share of portfolio for each institution holding Day One Biopharmaceuticals, Inc.; share changes are against Q2 2023.

Institutions holding DAWN in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
CWM, LLC3$00.00%00.0%Unchanged
Covestor Ltd9$00.00%−1−10.0%Reduced
Avion Wealth37$00.00%+37New
The PNC Financial Services Group, Inc.4$490.00%+4New
Northwestern Mutual Wealth Management Co15$1840.00%+15New
Advisor Group Holdings, Inc.24$2940.00%+10+71.4%Added
IFP Advisors, Inc24$2940.00%+24New
Crewe Advisors LLC30$3690.00%00.0%Unchanged
Bellevue Asset Management, LLC93$1.14K0.00%00.0%Unchanged
Red Tortoise LLC196$2.40K0.00%00.0%Unchanged
Comerica Bank206$2.53K0.00%+206New
Washington Trust Advisors, Inc.246$3.02K0.00%00.0%Unchanged
Daiwa Securities Group Inc.296$4.00K0.00%00.0%Unchanged
CarsonAllaria Wealth Management, Ltd.430$5.28K0.00%+330+330.0%Added
Nisa Investment Advisors, LLC787$9.66K0.00%+741+1,610.9%Added
Tower Research Capital LLC (TRC)1,693$20.8K0.00%−1,478−46.6%Reduced
Federation des caisses Desjardins du Quebec1,765$21.7K0.00%+270+18.1%Added
China Universal Asset Management Co., Ltd.2,226$27.3K0.01%+1,262+130.9%Added
Quintet Private Bank (Europe) S.A.2,313$28.4K0.00%+11+0.5%Added
Group One Trading, L.P.2,958$36.3K0.00%+2,958New
Metropolitan Life Insurance Co3,691$45.3K0.00%+955+34.9%Added
Ameritas Investment Partners, Inc.6,279$77.0K0.00%+2,213+54.4%Added
Quarry LP6,519$80.0K0.05%+6,519New
Citadel Advisors LLC6,754$82.9K0.00%−765,402−99.1%Reduced
Virtus ETF Advisers LLC7,339$90.0K0.05%−734−9.1%Reduced
Exchange Traded Concepts, LLC7,518$92.2K0.00%−2,895−27.8%Reduced
Amalgamated Bank8,628$106.0K0.00%+2,268+35.7%Added
Zurcher Kantonalbank (Zurich Cantonalbank)9,255$113.6K0.00%00.0%Unchanged
Royal Bank of Canada9,721$119.0K0.00%+4,840+99.2%Added
Sandia Investment Management LP10,000$122.7K0.03%00.0%Unchanged
Capstone Investment Advisors, LLC11,088$136.1K0.00%+11,088New
Regency Capital Management Inc.12,000$147.2K0.13%00.0%Unchanged
E Fund Management Co., Ltd.12,176$149.0K0.01%−3,465−22.2%Reduced
Arizona State Retirement System12,363$151.7K0.00%+995+8.8%Added
Teacher Retirement System of Texas12,883$158.0K0.00%−942−6.8%Reduced
ProShare Advisors LLC13,824$169.6K0.00%+2,660+23.8%Added
Walleye Trading LLC14,966$183.6K0.00%+14,966New
Principal Financial Group Inc17,781$218.2K0.00%+1,569+9.7%Added
State Board of Administration of Florida Retirement System17,880$219.4K0.00%+3,900+27.9%Added
Invesco Ltd.19,162$235.1K0.00%+3,068+19.1%Added
Prelude Capital Management, LLC21,900$268.7K0.02%+10,000+84.0%Added
Vontobel Holding Ltd.23,800$292.0K0.00%00.0%Unchanged
UBS Group AG23,881$293.0K0.00%+11,338+90.4%Added
Cetera Advisor Networks LLC27,639$339.1K0.00%+16,139+140.3%Added
Apis Capital Advisors, LLC29,000$355.8K0.46%−61,000−67.8%Reduced
Martingale Asset Management L P30,144$369.9K0.01%+102+0.3%Added
American International Group, Inc.31,268$383.7K0.00%+7,571+31.9%Added
Algert Global LLC33,062$405.7K0.02%−15,940−32.5%Reduced
MetLife Investment Management33,443$410.3K0.00%+7,037+26.6%Added
Alliancebernstein L.P.35,070$430.3K0.00%−8,240−19.0%Reduced
Millennium Management LLC35,786$439.1K0.00%−452,338−92.7%Reduced
Fisher Asset Management, LLC36,208$444.3K0.00%00.0%Unchanged
Legato Capital Management LLC36,676$450.0K0.07%−7,012−16.1%Reduced
SG Americas Securities, LLC36,980$454.0K0.01%+13,683+58.7%Added
Profund Advisors LLC40,245$493.8K0.03%−12,387−23.5%Reduced
Manufacturers Life Insurance Company, The41,416$508.2K0.00%−22,297−35.0%Reduced
Credit Suisse AG41,949$514.7K0.00%−15,453−26.9%Reduced
Voya Investment Management LLC42,573$522.4K0.00%+5,786+15.7%Added
State of Wisconsin Investment Board42,810$525.3K0.00%−3,386−7.3%Reduced
Mirae Asset Global Investments Co., Ltd.43,567$534.6K0.00%+8,522+24.3%Added
Squarepoint Ops LLC46,844$574.8K0.00%−114,942−71.0%Reduced
Erste Asset Management GmbH51,200$634.9K0.01%00.0%Unchanged
California State Teachers Retirement System52,192$640.4K0.00%−9,119−14.9%Reduced
Legal & General Group Plc53,730$659.3K0.00%+4,630+9.4%Added
Hennion & Walsh Asset Management, Inc.53,803$660.2K0.04%+25,414+89.5%Added
Susquehanna International Group, LLP54,736$671.6K0.00%−25,334−31.6%Reduced
TD Asset Management Inc55,196$677.3K0.00%+27,598+100.0%Added
Alps Advisors Inc64,153$787.2K0.01%+1,592+2.5%Added
New York State Common Retirement Fund65,005$797.6K0.00%−8,061−11.0%Reduced
Wells Fargo & Company77,611$952.3K0.00%−13,350−14.7%Reduced
Rhumbline Advisers89,203$1.09M0.00%+22,942+34.6%Added
JPMorgan Chase & Co91,526$1.12M0.00%+23,942+35.4%Added
AlphaCentric Advisors LLC95,000$1.17M0.66%−15,000−13.6%Reduced
Swiss National Bank95,400$1.17M0.00%−15,900−14.3%Reduced
Trexquant Investment LP97,868$1.20M0.03%+97,868New
Citigroup Inc100,665$1.24M0.00%+4,234+4.4%Added
Macquarie Group Ltd110,000$1.35M0.00%00.0%Unchanged
Wellington Management Group LLP117,576$1.44M0.00%+5,566+5.0%Added
Barclays PLC131,882$1.62M0.00%−12,521−8.7%Reduced
Schonfeld Strategic Advisors LLC136,700$1.68M0.02%+21,182+18.3%Added
Morgan Stanley158,446$1.94M0.00%−79,258−33.3%Reduced
Norges Bank169,000$2.07M0.00%00.0%Unchanged
Simplify Asset Management Inc.175,018$2.15M0.35%+175,018New
Deutsche Bank AG177,137$2.17M0.00%+9,219+5.5%Added
D. E. Shaw & Co., Inc.196,228$2.41M0.00%−17,188−8.1%Reduced
Samsara BioCapital, LLC196,425$2.41M0.74%00.0%Unchanged
Bank of America Corp218,601$2.68M0.00%+5,129+2.4%Added
Bank of New York Mellon Corp220,296$2.70M0.00%+40,387+22.4%Added
ExodusPoint Capital Management, LP224,609$2.76M0.04%+37,424+20.0%Added
Rafferty Asset Management, LLC237,084$2.91M0.02%−53,924−18.5%Reduced
Woodline Partners LP272,538$3.34M0.04%+61,538+29.2%Added
Walleye Capital LLC277,206$3.40M0.05%+277,206New
Candriam Luxembourg S.C.A.290,014$3.56M0.03%00.0%Unchanged
Dimensional Fund Advisors LP306,185$3.76M0.00%+123,007+67.2%Added
Alyeska Investment Group, L.P.390,167$4.79M0.03%00.0%Unchanged
Nuveen Asset Management, LLC425,209$5.22M0.00%+72,443+20.5%Added
Charles Schwab Investment Management Inc447,138$5.49M0.00%+125,050+38.8%Added
Marshall Wace, LLP461,835$5.67M0.01%−327,797−41.5%Reduced
Parkman Healthcare Partners LLC466,408$5.72M1.05%+38,129+8.9%Added
Driehaus Capital Management LLC488,318$5.99M0.08%+10,212+2.1%Added