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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, Q2 2022

Institutional positions in Day One Biopharmaceuticals, Inc. as of Jun 30, 2022. 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
87
+23 vs. Q1 2022
Shares held
59.4M
+16.1M (+37.2%) vs. Q1 2022
Total value
$1.06B
+$632.7M (+147.4%) vs. Q1 2022
New holders
34
29 more added
Sold out
11
15 more reduced

2 institutions that held it in Q1 2022 haven't filed for Q2 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2022: 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 2022: 87 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 2022: $1.06B
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, Q2 2022

Shares, value and share of portfolio for each institution holding Day One Biopharmaceuticals, Inc.; share changes are against Q1 2022.

Institutions holding DAWN in Q2 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Credit Suisse AG23$00.00%+23New
CWM, LLC3$00.00%+3New
Ellevest, Inc.10$00.00%+10New
Advisor Group Holdings, Inc.1$00.00%+1New
Crewe Advisors LLC80$1.00K0.00%+80New
Daiwa Securities Group Inc.181$3.00K0.00%00.0%Unchanged
Washington Trust Advisors, Inc.163$3.00K0.00%+163New
Capital Analysts, LLC750$13.0K0.00%00.0%Unchanged
Barclays PLC1,172$21.0K0.00%−4,315−78.6%Reduced
Royal Bank of Canada1,276$22.0K0.00%−1,266−49.8%Reduced
Quintet Private Bank (Europe) S.A.2,302$27.5K0.00%+2,302New
Ameritas Investment Partners, Inc.1,764$31.0K0.00%00.0%Unchanged
ACG Wealth1,772$32.0K0.01%+1,772New
Metropolitan Life Insurance Co1,825$32.7K0.00%00.0%Unchanged
FourThought Financial, LLC1,850$33.0K0.00%+1,850New
TCI Wealth Advisors, Inc.1,974$35.0K0.01%+1,974New
Legal & General Group Plc2,024$36.0K0.00%−159−7.3%Reduced
Citigroup Inc2,765$49.0K0.00%+562+25.5%Added
Quantbot Technologies LP2,900$51.0K0.00%+2,900New
Amalgamated Bank2,957$53.0K0.00%−77−2.5%Reduced
Tower Research Capital LLC (TRC)3,750$67.0K0.00%+1,940+107.2%Added
UBS Group AG3,851$69.0K0.00%+3,851New
Virtus ETF Advisers LLC6,551$117.0K0.04%−2,335−26.3%Reduced
SG Americas Securities, LLC9,446$169.0K0.00%+9,446New
California State Teachers Retirement System9,985$179.0K0.00%+298+3.1%Added
American International Group, Inc.10,929$196.0K0.00%−365−3.2%Reduced
Deutsche Bank AG11,044$198.0K0.00%−2,219−16.7%Reduced
State Board of Administration of Florida Retirement System13,760$246.0K0.00%+13,760New
Laurion Capital Management LP15,000$269.0K0.01%−76,239−83.6%Reduced
MetLife Investment Management15,573$278.8K0.00%00.0%Unchanged
JPMorgan Chase & Co16,515$295.0K0.00%−4,436−21.2%Reduced
Millennium Management LLC17,555$314.0K0.00%−157,168−90.0%Reduced
New York State Common Retirement Fund19,468$348.0K0.00%+58+0.3%Added
Wells Fargo & Company20,212$362.0K0.00%+10,212+102.1%Added
ExodusPoint Capital Management, LP23,003$412.0K0.01%+23,003New
Occudo Quantitative Strategies LP23,619$423.0K0.03%+23,619New
Nuveen Asset Management, LLC72,552$481.0K0.00%+32,778+82.4%Added
Bank of America Corp29,707$532.0K0.00%+23,857+407.8%Added
Monashee Investment Management LLC30,000$537.0K0.20%+30,000New
Summit Rock Advisors, LP33,125$593.0K0.48%00.0%Unchanged
Rhumbline Advisers33,954$608.0K0.00%+14,546+74.9%Added
Utah Retirement Systems34,184$612.0K0.01%−6,368−15.7%Reduced
HRT Financial LP35,426$634.0K0.01%+35,426New
Alps Advisors Inc36,730$657.0K0.01%−26,941−42.3%Reduced
Morgan Stanley37,040$662.0K0.00%+20,587+125.1%Added
Schonfeld Strategic Advisors LLC40,300$722.0K0.01%+40,300New
Alliancebernstein L.P.42,400$759.0K0.00%+42,400New
TD Asset Management Inc46,333$829.0K0.00%+8,884+23.7%Added
Allianz Asset Management GmbH51,325$919.0K0.00%+51,325New
Ergoteles LLC56,300$1.01M0.03%+56,300New
Manufacturers Life Insurance Company, The57,612$1.01M0.00%+14,435+33.4%Added
Citadel Advisors LLC59,804$1.07M0.00%−51,932−46.5%Reduced
Cubist Systematic Strategies, LLC61,237$1.10M0.01%+61,237New
Bank of New York Mellon Corp63,542$1.14M0.00%+6,052+10.5%Added
Maven Securities LTD80,000$1.43M0.25%+80,000New
Invesco Ltd.97,024$1.74M0.00%+97,024New
Silverarc Capital Management, LLC105,476$1.89M0.88%+105,476New
Macquarie Group Ltd110,000$1.97M0.00%+110,000New
Parkman Healthcare Partners LLC114,750$2.05M0.76%+114,750New
Renaissance Technologies LLC116,630$2.09M0.00%+116,630New
Simplex Trading, LLC132,926$2.38M0.08%+132,926New
D. E. Shaw & Co., Inc.138,318$2.48M0.00%+138,318New
Marshall Wace, LLP145,898$2.61M0.01%+128,155+722.3%Added
Woodline Partners LP150,176$2.69M0.04%+150,176New
Charles Schwab Investment Management Inc153,043$2.74M0.00%+49,009+47.1%Added
Northern Trust Corp190,510$3.41M0.00%+20,211+11.9%Added
Samsara BioCapital, LLC196,425$3.52M0.94%−6,075−3.0%Reduced
Alyeska Investment Group, L.P.217,143$3.89M0.04%+113,943+110.4%Added
State Street Corp358,783$6.42M0.00%+142,567+65.9%Added
Geode Capital Management, LLC442,359$7.92M0.00%+119,664+37.1%Added
Driehaus Capital Management LLC501,689$8.98M0.15%+98,231+24.3%Added
Perceptive Advisors LLC556,047$9.95M0.31%00.0%Unchanged
Commodore Capital LP739,661$13.2M2.80%+739,661New
Polar Capital Holdings Plc971,696$17.4M0.13%+971,696New
Boxer Capital, LLC1,189,943$21.3M1.35%00.0%Unchanged
Viking Global Investors LPSuperinvestorViking Global Investors1,857,424$33.2M0.15%+700,000+60.5%Added
Goldman Sachs Group Inc1,894,537$33.9M0.01%+1,863,325+5,969.9%Added
BlackRock Inc.1,962,724$35.1M0.00%+799,808+68.8%Added
Price T Rowe Associates Inc2,041,344$36.5M0.00%+455,603+28.7%Added
Franklin Resources Inc2,465,380$44.1M0.02%+922,521+59.8%Added
Vanguard Group Inc2,626,474$47.0M0.00%−359,952−12.1%Reduced
Adage Capital Partners GP, L.L.C.2,746,825$49.2M0.11%+2,570,976+1,462.0%Added
Deerfield Management Company, L.P. (Series C)3,512,123$62.9M1.32%+1,425,674+68.3%Added
FMR LLC6,826,574$122.2M0.01%+4,232,055+163.1%Added
Ra Capital Management, L.P.7,040,622$126.0M3.36%+980,532+16.2%Added
Atlas Venture Life Science Advisors, LLC8,968,305$160.5M26.84%+766,667+9.3%Added
Canaan Partners XI LLC9,663,645$173.0M61.60%00.0%Unchanged
Janus Henderson Group PLC0$00.00%−902,020−100.0%Sold out
BVF Inc0$00.00%−809,282−100.0%Sold out
Two Sigma Investments, LP0$00.00%−60,190−100.0%Sold out
Walleye Capital LLC0$00.00%−26,148−100.0%Sold out
State of Tennessee, Treasury Department0$00.00%−25,460−100.0%Sold out
Two Sigma Advisers, LP0$00.00%−19,900−100.0%Sold out
Susquehanna International Group, LLP0$00.00%−18,604−100.0%Sold out
Nan Fung Group Holdings Ltd0$00.00%−11,445−100.0%Sold out
ProShare Advisors LLC0$00.00%−10,675−100.0%Sold out
The PNC Financial Services Group, Inc.0$00.00%−175−100.0%Sold out
Private Capital Group, LLC0$00.00%−142−100.0%Sold out
Parametric Portfolio Associates LLC––––Not filed
Amalgamated Financial Corp.––––Not filed