Rubrik
RBRK
465 hedge funds and large institutions have $5.69B invested in Rubrik in 2026 Q1 according to their latest regulatory filings, with 110 funds opening new positions, 191 increasing their positions, 115 reducing their positions, and 110 closing their positions.
66% more repeat investments, than reductions
Existing positions increased: 191 | Existing positions reduced: 115
6% more call options, than puts
Call options by funds: $264M | Put options by funds: $249M
0% more first-time investments, than exits
New positions opened: 110 | Existing positions closed: 110
1% less funds holding
Funds holding: 472 → 465 (-7)
2.49% less ownership
Funds ownership: 76.07% → 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: $8.83B → $5.69B (-$3.15B)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
+$172M |
| 2 |
Pictet Asset Management
Carouge,
Switzerland
|
+$97.4M |
| 3 |
Two Sigma Investments
New York
|
+$91.7M |
| 4 |
PC
PointState Capital
New York
|
+$88.7M |
| 5 |
UBS Group
Zurich,
Switzerland
|
+$75.5M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
-$166M |
| 2 |
First Trust Advisors
Wheaton,
Illinois
|
-$124M |
| 3 |
1832 Asset Management
Toronto,
Ontario, Canada
|
-$78.2M |
| 4 |
BC
BIT Capital
Berlin,
Germany
|
-$69.6M |
| 5 |
Federated Hermes
Pittsburgh,
Pennsylvania
|
-$65M |
RBRK Hedge Fund Activity: Q1 2026 in Review
465 of the 8,187 institutional investors tracked by Wall St. Rank reported a position in Rubrik (RBRK) for Q1 2026, worth a combined $5.69B — down 36% from $8.83B a quarter earlier.
Fund positioning in RBRK was balanced in Q1 2026: 110 funds opened new positions, 110 closed out, 191 added to existing stakes and 115 trimmed.
The largest buyer was Fidelity Investments, adding an estimated $172M. The largest seller was BlackRock, cutting an estimated $166M.
- 465 institutional investors held Rubrik (RBRK) as of Q1 2026, down from 472 in Q4 2025.
- Funds reported $5.69B of Rubrik stock for Q1 2026, down 36% quarter-over-quarter.
- 110 funds opened new Rubrik positions in Q1 2026 and 110 closed out, a net change of 0 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.