NASDAQ: DAWN
Day One Biopharmaceuticals Inc Stock Ownership - Who owns Day One Biopharmaceuticals?

Insider buying vs selling

Have Day One Biopharmaceuticals Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Charles N. York IiCOO and CFO2025-11-174,062$8.92
$36.21kSell
Jeremy BenderCHIEF EXECUTIVE OFFICER2025-11-1715,894$8.92
$141.70kSell
Adam DubowGen Counsel Secretary2025-11-174,319$8.92
$38.50kSell
Lauren MerendinoChief Commercial Officer2025-11-173,726$8.92
$33.22kSell
Adam DubowGen Counsel Secretary2025-08-184,365$6.77
$29.54kSell
Lauren MerendinoChief Commercial Officer2025-08-183,766$6.77
$25.48kSell
Jeremy BenderCHIEF EXECUTIVE OFFICER2025-08-1816,058$6.77
$108.66kSell
Charles N. York IiCOO and CFO2025-08-184,106$6.77
$27.79kSell
Charles N. York IiCOO CFO AND SECRETARY2025-05-164,282$6.26
$26.80kSell
Adam DubowGENERAL COUNSEL2025-05-164,552$6.26
$28.49kSell

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Net Insider Buy/Sell (L12M) Ownership

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DAWN Shareholders

What type of owners hold Day One Biopharmaceuticals Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Ai Day1 LLC12.59%12,929,322$106.67MInsider
Papanek Julie Grant10.91%11,199,207$92.39MInsider
Fmr LLC9.83%10,097,668$83.31MInstitution
Ai Day 1 LLC9.13%9,377,776$77.37MInsider
Blackrock Inc8.77%9,001,455$74.26MInstitution
Canaan XI LP6.78%6,964,301$57.46MInsider
Atlas Venture Life Science Advisors LLC6.26%6,430,257$53.05MInstitution
Atlas Venture Fund XI LP6.10%6,258,534$51.63MInsider
Vanguard Group Inc6.02%6,181,329$51.00MInstitution
Takeda Pharmaceutical Co Ltd5.96%6,120,124$50.49MInsider

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DAWN vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
DAWN57.43%42.57%Net SellingNet Selling
GHRS71.79%0.00%
ABUS29.82%70.18%Net Selling
YDES0.25%3.67%
TBPH52.91%47.09%Net SellingNet Selling

Day One Biopharmaceuticals Stock Ownership FAQ

Who owns Day One Biopharmaceuticals?

Day One Biopharmaceuticals (NASDAQ: DAWN) is owned by 83.22% institutional shareholders, 61.69% Day One Biopharmaceuticals insiders, and 0.00% retail investors. Ai Day1 LLC is the largest individual Day One Biopharmaceuticals shareholder, owning 12.93M shares representing 12.59% of the company. Ai Day1 LLC's Day One Biopharmaceuticals shares are currently valued at $110.03M.

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