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Day One Biopharmaceuticals

174 hedge funds and large institutions have $560M invested in Day One Biopharmaceuticals in 2025 Q2 according to their latest regulatory filings, with 26 funds opening new positions, 71 increasing their positions, 56 reducing their positions, and 34 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less funds holding

Funds holding:

less ownership

Funds ownership:

24% less first-time investments, than exits

New positions opened: 26 | Existing positions closed: 34

25% less capital invested

Capital invested by funds: $746M → $560M (-$186M)

50% less funds holding in top 10

Funds holding in top 10: 21 (-1)

Holders
174
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$902K
Puts
$581K
Net Calls
Net Calls Change

Top Buyers

1 +$20M
2 +$4.96M
3 +$4.31M
4
Renaissance Technologies
Renaissance Technologies
New York
+$4.24M
5
Morgan Stanley
Morgan Stanley
New York
+$4.18M
Name Holding Trade Value Shares
Change
Change in
Stake
SC
126
Savant Capital
Illinois
$73K
EFM
127
E Fund Management
China
$71.4K
Wealth Enhancement Advisory Services
128
Wealth Enhancement Advisory Services
Minnesota
$69.8K
Prudential Financial
129
Prudential Financial
New Jersey
$69.4K
ET
130
Entropy Technologies
New York
$67.1K
SW
131
SteelPeak Wealth
California
$65K
BC
132
BIT Capital
Germany
$54.7K
QT
133
Quantbot Technologies
New York
$49K
AIP
134
Ameritas Investment Partners
Nebraska
$47.8K
TRCT
135
Tower Research Capital (TRC)
New York
$34.1K
Mirae Asset Global Investments
136
Mirae Asset Global Investments
South Korea
$25.5K
TFGT
137
TS Financial Group (TSFG)
Illinois
$22K
QPBE
138
Quintet Private Bank (Europe)
Luxembourg
$21.5K
AP
139
Antipodes Partners
Australia
$19.5K
GFM
140
GF Fund Management
China
$16.8K
FDCDDQ
141
Federation des caisses Desjardins du Quebec
Quebec, Canada
$13.2K
SCM
142
Sterling Capital Management
North Carolina
$12.1K
AB
143
Amalgamated Bank
New York
$12K
Group One Trading
144
Group One Trading
Illinois
$8.75K
Raymond James Financial
145
Raymond James Financial
Florida
$8K
Nisa Investment Advisors
146
Nisa Investment Advisors
Missouri
$6.8K
CIAM
147
Caitong International Asset Management
Hong Kong
$5.97K
Comerica Bank
148
Comerica Bank
Texas
$5.1K
BNP Paribas Asset Management
149
BNP Paribas Asset Management
France
$5K
VCM
150
Versant Capital Management
Arizona
$3.93K