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Rubrik
RBRK

462 hedge funds and large institutions have $5.68B invested in Rubrik in 2026 Q1 according to their latest regulatory filings, with 108 funds opening new positions, 190 increasing their positions, 115 reducing their positions, and 110 closing their positions.

New
Increased
Maintained
Reduced
Closed

65% more repeat investments, than reductions

Existing positions increased: 190 | Existing positions reduced: 115

6% more call options, than puts

Call options by funds: $264M | Put options by funds: $249M

2% less first-time investments, than exits

New positions opened: 108 | Existing positions closed: 110

2% less funds holding

Funds holding: 473 → 462 (-11)

2.55% less ownership

Funds ownership: 76.12% → 73.58% (-2.5%)

35% less funds holding in top 10

Funds holding in top 10: 17 → 11 (-6)

36% less capital invested

Capital invested by funds: $8.84B → $5.68B (-$3.15B)

Holders
462
Holders Change
-11
Holders Change %
-2.33%
% of All Funds
5.69%
Holding in Top 10
11
Holding in Top 10 Change
-6
Holding in Top 10 Change %
-35.29%
% of All Funds
0.14%
New
108
Increased
190
Reduced
115
Closed
110
Calls
$264M
Puts
$249M
Net Calls
+$14.8M
Net Calls Change
-$139M

Top Buyers

1
Fidelity Investments
Fidelity Investments
Massachusetts
+$172M
2
Pictet Asset Management
Pictet Asset Management
Switzerland
+$97.4M
3
Two Sigma Investments
Two Sigma Investments
New York
+$91.7M
4
PC
PointState Capital
New York
+$88.7M
5
UBS Group
UBS Group
Switzerland
+$75.5M

Top Sellers

1
BlackRock
BlackRock
New York
-$166M
2
First Trust Advisors
First Trust Advisors
Illinois
-$124M
3
1832 Asset Management
1832 Asset Management
Ontario, Canada
-$78.2M
4
BC
BIT Capital
Germany
-$69.6M
5
Federated Hermes
Federated Hermes
Pennsylvania
-$65M
Name Holding Trade Value Shares
Change 		Change in
Stake
DWM
151
Diversify Wealth Management
Utah
$2.48M +$415K +7,227 +19%
State of New Jersey Common Pension Fund D
152
State of New Jersey Common Pension Fund D
New Jersey
$2.44M +$96.8K +1,687 +4%
AA
153
ALPS Advisors
Colorado
$2.4M +$789K +13,744 +39%
BCV
154
Banque Cantonale Vaudoise
Switzerland
$2.29M +$2.66M +46,326 +11,299%
IMC Chicago
155
IMC Chicago
Illinois
$2.28M +$2.67M +46,565 New
BGDI
156
BW Gestao de Investimentos
Brazil
$2.26M +$2.65M +46,093 New
SAM
157
SP Asset Management
California
$2.19M – – –
RWP
158
RWA Wealth Partners
Massachusetts
$2.18M – – –
Mercer Global Advisors
159
Mercer Global Advisors
Colorado
$2.16M +$1.77M +30,896 +236%
HIM
160
Hillsdale Investment Management
Ontario, Canada
$2.13M – – –
Ohio Public Employees Retirement System (OPERS)
161
Ohio Public Employees Retirement System (OPERS)
Ohio
$2.04M -$2.34M -40,761 -49%
AC
162
AXQ Capital
New Jersey
$2.03M +$2.1M +36,510 +740%
ASRS
163
Arizona State Retirement System
Arizona
$1.98M +$66.5K +1,159 +3%
Korea Investment Corp
164
Korea Investment Corp
South Korea
$1.97M – – –
GPGA
165
Grandeur Peak Global Advisors
Utah
$1.93M -$1.01M -17,598 -31%
CIBC World Market
166
CIBC World Market
Ontario, Canada
$1.92M +$1.14M +19,788 +102%
Bessemer Group
167
Bessemer Group
New Jersey
$1.89M – – –
EGM
168
Engineers Gate Manager
New York
$1.89M -$2.35M -41,033 -52%
WCM Investment Management
169
WCM Investment Management
California
$1.88M -$786K -13,691 -25%
VIA
170
Vanguard Investments Australia
Australia
$1.86M +$2.19M +38,080 New
MCM
171
Massar Capital Management
Connecticut
$1.86M +$444K +7,735 +26%
AIG
172
American International Group
New York
$1.79M – – –
BA
173
Bridgewater Associates
Connecticut
$1.75M -$930K -16,198 -31%
WE
174
Wealth Effects
Massachusetts
$1.72M +$2.01M +35,072 New
AC
175
Allstate Corporation
Illinois
$1.71M +$2.01M +35,005 New
5 6
7
8 9

RBRK Hedge Fund Activity: Q1 2026 in Review

462 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Rubrik (RBRK) for Q1 2026, worth a combined $5.68B — down 36% from $8.84B a quarter earlier.

Sellers outnumbered buyers: 110 funds closed out of RBRK and 108 opened new positions — a net loss of 2 holders — while 115 trimmed existing stakes and 190 added.

The largest buyer was Fidelity Investments, adding an estimated $172M. The largest seller was BlackRock, cutting an estimated $166M.

  • 462 institutional investors held Rubrik (RBRK) as of Q1 2026, down from 473 in Q4 2025.
  • Funds reported $5.68B of Rubrik stock for Q1 2026, down 36% quarter-over-quarter.
  • 108 funds opened new Rubrik positions in Q1 2026 and 110 closed out, a net change of -2 holders.
  • The largest Rubrik buyer in Q1 2026 was Fidelity Investments, an estimated $172M added.
  • The largest Rubrik seller in Q1 2026 was BlackRock, an estimated $166M sold.

Based on aggregated 13F filings for Q1 2026.