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Rubrik
RBRK

Overview Fund Activity

385 hedge funds and large institutions have $8.93B invested in Rubrik in 2025 Q2 according to their latest regulatory filings, with 134 funds opening new positions, 132 increasing their positions, 91 reducing their positions, and 46 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
385
Holders Change
+81
Holders Change %
+26.64%
% of All Funds
5.16%
Holding in Top 10
19
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+18.75%
% of All Funds
0.25%
New
134
Increased
132
Reduced
91
Closed
46
Calls
$211M
Puts
$249M
Net Calls
-$38.5M
Net Calls Change
-$22.7M

Top Buyers

1
BlackRock
BlackRock
New York
+$543M
2
Vanguard Group
Vanguard Group
Pennsylvania
+$455M
3
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$181M
4
First Trust Advisors
First Trust Advisors
Illinois
+$124M
5
Acadian Asset Management
Acadian Asset Management
Massachusetts
+$111M

Top Sellers

1
BCVI
Bain Capital Venture Investors
Massachusetts
-$125M
2
PC
PointState Capital
New York
-$81.1M
3
SSA
Schonfeld Strategic Advisors
New York
-$67.3M
4
Fidelity Investments
Fidelity Investments
Massachusetts
-$56M
5
ACM
Altimeter Capital Management
Massachusetts
-$50.7M
Name Holding Trade Value Shares
Change 		Shares
Change %
RhumbLine Advisers
101
RhumbLine Advisers
Massachusetts
$8.73M +$8.47M +94,505 +3,171%
RAM
102
Robocap Asset Management
United Kingdom
$8.67M -$1.1M -12,278 -11%
MAM
103
Melqart Asset Management
United Kingdom
$8.66M -$5.63M -62,824 -39%
California State Teachers Retirement System (CalSTRS)
104
California State Teachers Retirement System (CalSTRS)
California
$8.17M +$1.75M +19,533 +27%
VWS
105
Virtus Wealth Solutions
New Jersey
$8.11M +$8.11M +90,497 New
HP
106
Harbourvest Partners
Massachusetts
$7.85M -$7.61M -84,973 -49%
MCCP
107
Mission Creek Capital Partners
California
$7.71M -$299K -3,340 -4%
FIG
108
Fortress Investment Group
New York
$7.53M +$7.53M +84,022 New
GCM
109
Graham Capital Management
Connecticut
$6.94M +$858K +9,574 +14%
OCM
110
Osterweis Capital Management
California
$6.92M +$6.92M +77,185 New
State Board of Administration of Florida Retirement System
111
State Board of Administration of Florida Retirement System
Florida
$6.91M +$6.91M +77,128 New
Deutsche Bank
112
Deutsche Bank
Germany
$6.66M -$13.7M -153,159 -67%
RC
113
Renaissance Capital
Connecticut
$6.53M +$1.45M +16,156 +28%
EGI
114
EAM Global Investors
California
$6.5M -$2.33K -26 -0%
FC
115
FORA Capital
Florida
$6.29M -$427K -4,770 -6%
PP
116
PDT Partners
New York
$6.11M -$882K -9,840 -13%
Susquehanna International Group
117
Susquehanna International Group
Pennsylvania
$5.96M -$23.7M -264,277 -80%
Allianz Asset Management
118
Allianz Asset Management
Germany
$5.95M +$5.28M +58,927 +783%
Universal-Beteiligungs- und Servicegesellschaft
119
Universal-Beteiligungs- und Servicegesellschaft
Germany
$5.86M +$4.6M +51,312 +365%
Adage Capital Partners
120
Adage Capital Partners
Massachusetts
$5.82M +$5.82M +65,000 New
Jane Street
121
Jane Street
New York
$5.56M -$15M -167,075 -73%
Natixis Advisors
122
Natixis Advisors
Massachusetts
$5.5M -$110K -1,233 -2%
EI
123
EAM Investors
California
$5.45M -$786K -8,770 -13%
SG
124
StepStone Group
California
$5.39M +$568K +6,344 +12%
BHCM
125
Brevan Howard Capital Management
Jersey
$5.38M +$5.38M +60,054 New
3 4
5
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