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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
5.17%
Holding in Top 10
19
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+18.75%
% of All Funds
0.26%
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
1
BlackRock
New York
$748M
2
Vanguard Group
2
Vanguard Group
Pennsylvania
$1.08B
3
D.E. Shaw & Co
3
D.E. Shaw & Co
New York
$387M
4
First Trust Advisors
4
First Trust Advisors
Illinois
$400M
5
Acadian Asset Management
5
Acadian Asset Management
Massachusetts
$139M

Top Sellers

1
BCVI
1
Bain Capital Venture Investors
Massachusetts
$122M
2
PC
2
PointState Capital
New York
$0
3
SSA
3
Schonfeld Strategic Advisors
New York
$5.24M
4
Fidelity Investments
4
Fidelity Investments
Massachusetts
$266M
5
ACM
5
Altimeter Capital Management
Massachusetts
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
Daiwa Securities Group
201
Daiwa Securities Group
Japan
$1.23M +$1.23M +13,696 New
EMPI
202
Elo Mutual Pension Insurance
Finland
$1.2M +$1.2M +13,355 New
MIFH
203
Migdal Insurance & Financial Holdings
Israel
$1.17M – – –
EFM
204
E Fund Management
China
$1.14M +$1.14M +12,720 New
URS
205
Utah Retirement Systems
Utah
$1.08M +$466K +5,198 +76%
GAM
206
Groupama Asset Management
France
$1.04M – – –
WAP
207
Wealthcare Advisory Partners
Pennsylvania
$1.03M +$80.3K +896 +8%
MF
208
Magnetar Financial
Illinois
$1.01M +$147K +1,643 +17%
Focus Partners Wealth
209
Focus Partners Wealth
Massachusetts
$989K +$989K +11,039 New
DFCM
210
Dark Forest Capital Management
Puerto Rico
$981K -$611K -6,821 -38%
BPC
211
Bryce Point Capital
New York
$962K +$962K +10,738 New
RS
212
Rakuten Securities
Japan
$911K +$783K +8,735 +612%
SG
213
StoneX Group
New York
$896K +$896K +10,000 New
X
214
Xponance
Pennsylvania
$895K +$895K +9,988 New
LMIM
215
Lockheed Martin Investment Management
Maryland
$887K -$213K -2,376 -19%
CS
216
Cisco Systems
California
$887K +$887K +9,898 New
IMRF
217
Illinois Municipal Retirement Fund
Illinois
$876K +$876K +9,779 New
PCM
218
Prelude Capital Management
New York
$845K +$845K +9,427 New
Public Employees Retirement Association of Colorado
219
Public Employees Retirement Association of Colorado
Colorado
$842K – – –
P
220
&Partners
Tennessee
$831K +$417K +4,480 +101%
DIM
221
DC Investments Management
Virginia
$830K – – –
PCMH
222
Polymer Capital Management (HK)
Hong Kong
$828K +$828K +9,242 New
Pathstone Holdings
223
Pathstone Holdings
New Jersey
$826K -$953K -10,640 -54%
LAI
224
Legal Advantage Investments
California
$815K +$448K +5,000 +122%
KeyBank National Association
225
KeyBank National Association
Ohio
$815K +$407K +4,548 +100%
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