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Rubrik
RBRK

389 hedge funds and large institutions have $8.93B invested in Rubrik in 2025 Q2 according to their latest regulatory filings, with 135 funds opening new positions, 133 increasing their positions, 91 reducing their positions, and 46 closing their positions.

New
Increased
Maintained
Reduced
Closed

193% more first-time investments, than exits

New positions opened: 135 | Existing positions closed: 46

83% more capital invested

Capital invested by funds: $4.89B → $8.93B (+$4.04B)

64.86% more ownership

Funds ownership: 77.72% → 142.58% (+65%)

46% more repeat investments, than reductions

Existing positions increased: 133 | Existing positions reduced: 91

28% more funds holding

Funds holding: 305 → 389 (+84)

19% more funds holding in top 10

Funds holding in top 10: 16 → 19 (+3)

15% less call options, than puts

Call options by funds: $211M | Put options by funds: $249M

Holders
389
Holders Change
+84
Holders Change %
+27.54%
% of All Funds
5.12%
Holding in Top 10
19
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+18.75%
% of All Funds
0.25%
New
135
Increased
133
Reduced
91
Closed
46
Calls
$211M
Puts
$249M
Net Calls
-$38.5M
Net Calls Change
-$22.6M

Top Buyers

Rank Fund Capital Flow
1
BlackRock
BlackRock
New York
+$480M
2
Vanguard Group
Vanguard Group
Pennsylvania
+$401M
3
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$159M
4
First Trust Advisors
First Trust Advisors
Illinois
+$109M
5
Acadian Asset Management
Acadian Asset Management
Massachusetts
+$97.8M

Top Sellers

Rank Fund Capital Flow
1
BCVI
Bain Capital Venture Investors
Massachusetts
-$111M
2
PC
PointState Capital
New York
-$81.1M
3
SSA
Schonfeld Strategic Advisors
New York
-$59.4M
4
Norges Bank
Norges Bank
Norway
-$51M
5
ACM
Altimeter Capital Management
Massachusetts
-$50.7M
Name Holding Trade Value Shares
Change 		Change in
Stake
JG
226
Jain Global
New York
$814K -$1.36M -17,212 -65%
DS
227
DRW Securities
Illinois
$813K +$717K +9,073 New
BCI
228
Brinker Capital Investments
Pennsylvania
$811K +$6.64K +84 +0.9%
EAM
229
Eventide Asset Management
Massachusetts
$788K – – –
PTC
230
Petrus Trust Company
Texas
$776K +$685K +8,666 New
CUAMC
231
China Universal Asset Management Company
China
$762K +$672K +8,500 New
LCM
232
Landscape Capital Management
New Jersey
$759K +$670K +8,476 New
TWC
233
TD Waterhouse Canada
Ontario, Canada
$754K -$2.43M -30,801 -78%
CC
234
Centiva Capital
New York
$741K +$57.5K +728 +10%
SAF
235
Smith Anglin Financial
Texas
$740K +$165K +2,085 +34%
LMGAM
236
Liberty Mutual Group Asset Management
Massachusetts
$739K -$764K -9,664 -54%
OAC
237
OMERS Administration Corp
Ontario, Canada
$708K +$625K +7,900 New
SPC
238
Sigma Planning Corp
Michigan
$707K +$624K +7,894 New
MCM
239
MAI Capital Management
Ohio
$700K +$316 +4 +0.1%
WPW
240
Waldron Private Wealth
Pennsylvania
$690K +$305K +3,854 +100%
Mirae Asset Global Investments
241
Mirae Asset Global Investments
South Korea
$676K +$596K +7,545 New
FP
242
Financial Perspectives
Minnesota
$672K -$292K -3,700 -33%
OCM
243
Octahedron Capital Management
California
$672K -$1.09M -13,809 -65%
SCA
244
Snowden Capital Advisors
New York
$671K +$311K +3,935 +111%
GAM
245
Gotham Asset Management
New York
$664K -$414K -5,240 -41%
Lazard Asset Management
246
Lazard Asset Management
New York
$658K -$395 -5 -0.1%
GAA
247
Green Alpha Advisors
Colorado
$638K -$78.8K -997 -12%
CAM
248
Cresset Asset Management
Illinois
$636K +$273K +3,456 +95%
Janney Montgomery Scott
249
Janney Montgomery Scott
Pennsylvania
$633K +$558K +7,065 New
Cohen & Steers
250
Cohen & Steers
New York
$627K – – –
8 9
10
11 12

RBRK Hedge Fund Activity: Q2 2025 in Review

389 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Rubrik (RBRK) for Q2 2025, worth a combined $8.93B — up 83% from $4.89B a quarter earlier.

Buyers outnumbered sellers: 135 funds opened new RBRK positions and 46 closed out — a net gain of 89 holders — while 133 added to existing stakes and 91 trimmed.

The largest buyer was BlackRock, adding an estimated $480M. The largest seller was Bain Capital Venture Investors, cutting an estimated $111M.

  • 389 institutional investors held Rubrik (RBRK) as of Q2 2025, up from 305 in Q1 2025.
  • Funds reported $8.93B of Rubrik stock for Q2 2025, up 83% quarter-over-quarter.
  • 135 funds opened new Rubrik positions in Q2 2025 and 46 closed out, a net change of +89 holders.
  • The largest Rubrik buyer in Q2 2025 was BlackRock, an estimated $480M added.
  • The largest Rubrik seller in Q2 2025 was Bain Capital Venture Investors, an estimated $111M sold.

Based on aggregated 13F filings for Q2 2025.