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Cullinan Oncology
CGEM

Overview Fund Activity

148 hedge funds and large institutions have $490M invested in Cullinan Oncology in 2025 Q1 according to their latest regulatory filings, with 26 funds opening new positions, 44 increasing their positions, 50 reducing their positions, and 23 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
148
Holders Change
+2
Holders Change %
+1.37%
% of All Funds
2.01%
Holding in Top 10
5
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-44.44%
% of All Funds
0.07%
New
26
Increased
44
Reduced
50
Closed
23
Calls
$142K
Puts
$193K
Net Calls
-$51K
Net Calls Change
+$844K

Top Buyers

1
LCM
Lynx1 Capital Management
Puerto Rico
+$14.8M
2
KCM
Kynam Capital Management
New Jersey
+$8.22M
3
DM
Deerfield Management
New York
+$3.64M
4
Bank of America
Bank of America
North Carolina
+$2.79M
5
TCM
Tang Capital Management
California
+$1.51M

Top Sellers

1
Adage Capital Partners
Adage Capital Partners
Massachusetts
-$12.6M
2
BCM
Boxer Capital Management
California
-$11.1M
3
FCMV
Foresite Capital Management V
California
-$8.01M
4
Ameriprise
Ameriprise
Minnesota
-$6.14M
5
SFAM
Springhill Fund Asset Management
Hong Kong
-$3.37M
Name Holding Trade Value Shares
Change 		Shares
Change %
MB
1
MPM BioImpact
Massachusetts
$57.9M – – –
BI
2
BVF Inc
California
$43.5M – – –
BlackRock
3
BlackRock
New York
$32M -$1.14M -150,163 -3%
DM
4
Deerfield Management
New York
$29.2M +$3.64M +481,440 +14%
LCM
5
Lynx1 Capital Management
Puerto Rico
$24.3M +$14.8M +1,957,927 +156%
Vanguard Group
6
Vanguard Group
Pennsylvania
$23M +$784K +103,504 +4%
Citadel Advisors
7
Citadel Advisors
Florida
$20.8M +$486K +64,241 +2%
BOCH
8
Blue Owl Capital Holdings
New York
$18.4M +$492K +65,000 +3%
KCM
9
Kynam Capital Management
New Jersey
$17.7M +$8.22M +1,085,891 +87%
Franklin Resources
10
Franklin Resources
California
$16.8M +$152K +20,052 +0.9%
O
11
OrbiMed
New York
$14.6M -$142K -18,700 -1%
State Street
12
State Street
Massachusetts
$13.3M -$2.81M -371,805 -18%
AllianceBernstein
13
AllianceBernstein
Tennessee
$13M -$2.18M -288,524 -14%
RI
14
RTW Investments
New York
$12.9M – – –
VA
15
VR Adviser
New York
$10.4M – – –
Dimensional Fund Advisors
16
Dimensional Fund Advisors
Texas
$9.87M -$115K -15,151 -1%
Geode Capital Management
17
Geode Capital Management
Massachusetts
$9.4M +$206K +27,176 +2%
SL
18
Siren LLC
Connecticut
$9.03M -$136K -17,947 -1%
NI
19
Nextech Invest
Switzerland
$8.64M – – –
TCM
20
Tang Capital Management
California
$8.49M +$1.51M +200,000 +22%
B
21
Braidwell
Connecticut
$7.42M -$1.48M -195,400 -17%
PSC
22
Patient Square Capital
California
$6.65M – – –
Millennium Management
23
Millennium Management
New York
$5.93M -$384K -50,785 -6%
Goldman Sachs
24
Goldman Sachs
New York
$4.91M -$276K -36,417 -5%
RSCM
25
Rock Springs Capital Management
Maryland
$4.88M -$738K -97,481 -13%
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