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Day One Biopharmaceuticals
DAWN

Overview Fund Activity

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
Holders
174
Holders Change
-10
Holders Change %
-5.43%
% of All Funds
2.34%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.01%
New
26
Increased
71
Reduced
56
Closed
34
Calls
$902K
Puts
$581K
Net Calls
+$321K
Net Calls Change
+$855K

Top Buyers

1
BlackRock
1
BlackRock
New York
$63.9M
2
DM
2
Deerfield Management
New York
$24.2M
3
Qube Research & Technologies (QRT)
3
Qube Research & Technologies (QRT)
United Kingdom
$6.14M
4
Renaissance Technologies
4
Renaissance Technologies
New York
$6.5M
5
Morgan Stanley
5
Morgan Stanley
New York
$8.8M

Top Sellers

1
RCM
1
RA Capital Management
Massachusetts
$0
2
ECM
2
Estuary Capital Management
Minnesota
$0
3
Fidelity Investments
3
Fidelity Investments
Massachusetts
$73.7M
4
BCM
4
Boxer Capital Management
California
$0
5
B
5
Braidwell
Connecticut
$14.2M
Name Holding Trade Value Shares
Change 		Shares
Change %
BCM
176
Boxer Capital Management
California
– -$9.44M -1,189,943 Closed
Marshall Wace
177
Marshall Wace
United Kingdom
– -$7.04M -887,177 Closed
Balyasny Asset Management
178
Balyasny Asset Management
Illinois
– -$1.06M -133,641 Closed
Two Sigma Investments
179
Two Sigma Investments
New York
– -$554K -69,895 Closed
Squarepoint
180
Squarepoint
New York
– -$328K -41,326 Closed
SG Americas Securities
181
SG Americas Securities
New York
– -$273K -34,409 Closed
Handelsbanken Fonder
182
Handelsbanken Fonder
Sweden
– -$250K -31,500 Closed
HF
183
HRT Financial
New York
– -$249K -31,487 Closed
Jane Street
184
Jane Street
New York
– -$245K -30,910 Closed
CF
185
Corebridge Financial
Texas
– -$213K -26,825 Closed
BC
186
Bridgefront Capital
Texas
– -$209K -26,345 Closed
Allianz Asset Management
187
Allianz Asset Management
Germany
– -$198K -25,000 Closed
AC
188
AXQ Capital
New Jersey
– -$151K -19,030 Closed
CM
189
Caption Management
Oklahoma
– -$147K -18,534 Closed
EGM
190
Engineers Gate Manager
New York
– -$137K -17,291 Closed
Mariner
191
Mariner
Kansas
– -$118K -14,885 Closed
ETC
192
Exchange Traded Concepts
Oklahoma
– -$117K -14,693 Closed
Ameriprise
193
Ameriprise
Minnesota
– -$113K -14,255 Closed
TC
194
TwinBeech Capital
New York
– -$103K -12,998 Closed
Two Sigma Advisers
195
Two Sigma Advisers
New York
– -$102K -12,800 Closed
CWM
196
CIBC World Markets
New York
– -$96.4K -12,150 Closed
CP
197
CenterBook Partners
Connecticut
– -$93.9K -11,836 Closed
MF
198
Magnetar Financial
Illinois
– -$89.6K -11,303 Closed
PCA
199
Pallas Capital Advisors
Massachusetts
– -$87.3K -11,005 Closed
Simplex Trading
200
Simplex Trading
Illinois
– -$13K -1,665 Closed
5 6 7
8
9