Which funds own RBRK
Rubrik Inc. in the Q2 2026 filings. At least 8 of the 91 current managers on file reported a position, worth $947m between them. It is among the largest positions of fewer than a fifth of the current managers on file. The quarter went one way: 7 managers opened or added against 3 cutting.
- Managers holding
- 8
- at least, of 91 current
- Combined value
- $947m
- as reported
- Opened
- 5
- new this quarter
- Added to
- 2
- already held
- Trimmed or sold out
- 3
- 2 sold out entirely
Only each manager’s largest 200 positions are listed here, so a smaller holder may be missing.
Managers reporting a position
Largest first. Weight is the share of that manager’s whole reported book, which is the number worth quoting: $400m is a rounding error in one book and a defining bet in another.
| Manager | Value | Weight | Shares | Change on the quarter | Action |
|---|---|---|---|---|---|
| AQR Capital Management LLC Quantitative · $287bn book | $780m | 0.3% | 9,947,988 | +$675m+7,730,767 | Added |
| Davidson Kempner Capital Management LP Long/short equity · $8.4bn book | $61m | 0.7% | 60,000,000 | opened60,000,000 | New |
| Verition Fund Management LLC Multi-strategy · $19.7bn book | $37m | 0.2% | 36,500,000 | opened36,500,000 | New |
| Baillie Gifford & Co Long-only · $110bn book | $31m | 0.0% | 388,021 | +$23m+222,913 | Added |
| ARK Investment Management LLC Long-only · $15.4bn book | $29m | 0.2% | 365,426 | +$10m-29,623 | Trimmed |
| Oaktree Capital Management LP Activist · $7.2bn book | $4.6m | 0.1% | 4,504,000 | opened4,504,000 | New |
| Discovery Capital Management LLC Macro · $2.4bn book | $2.7m | 0.1% | 33,169 | opened33,169 | New |
| Polen Capital Management LLC Long-only · $11.6bn book | $500k | 0.0% | 6,201 | opened6,201 | New |
Sold out of this quarter
Valued at what the position was worth in the previous filing, because by this one it is gone.
- Capital World Investors · Long-only$33m held before
- Bridgewater Associates LP · Macro$1.7m held before
Ownership through time
At least 13 of the 95 managers whose filings are on file listed RBRK in Q2 2026, against 8 in Q2 2024. 2 managers more than in Q1 2026: 2 started positions; 3 listed it again; 3 no longer listed it among the positions read, which can mean a holding below the listed range or a filing not yet made.
Each manager’s largest 500 positions a quarter are read, so a small holding in a very large book can be missing, and a manager is counted as leaving only where its own filing shows it.
- Q2 2024: 8
- Q3 2024: 8
- Q4 2024: 14
- Q1 2025: 18
- Q2 2025: 20
- Q3 2025: 18
- Q4 2025: 17
- Q1 2026: 11
- Q2 2026: 13
- Q2 2024: $108m
- Q3 2024: $230m
- Q4 2024: $612m
- Q1 2025: $684m
- Q2 2025: $1.4bn
- Q3 2025: $912m
- Q4 2025: $584m
- Q1 2026: $342m
- Q2 2026: $1.8bn
Between the quarter ends of Q1 2026 and Q2 2026. Each change in shares is valued at the Q2 2026 price, so the price’s own move is left out; a 13F shows the two quarter ends, not when in between anything was bought or sold.
Started in Q2 2026
Largest increases, by shares
- AQR Capital Management LLC2,217,221 to 9,947,988 shares+$606m
- Baillie Gifford & Co165,108 to 388,021 shares+$18m
- Discovery Capital Management LLCnew: 33,169 shares+$2.7m
- Polen Capital Management LLCnew: 6,201 shares+$498k
Largest decreases, by shares
- Squarepoint Ops LLC817,005 to 647,337 shares-$14m
- ExodusPoint Capital Management LP161,341 to 87,157 shares-$6.0m
- Holocene Advisors LP555,713 to 525,000 shares-$2.5m
- ARK Investment Management LLC395,049 to 365,426 shares-$2.4m
Left it
No manager on file is shown leaving it.
What RBRK is worth
Knowing who owns it is half the question. The other half is what it is worth against the companies it trades beside, which is the one an interviewer will follow up with.
Build the comp set around RBRK →How much of the picture this is
A Form 13F reports US-listed long equity and nothing else: no shorts, no bonds, no cash and no non-US listings. It arrives forty-five days after the quarter ends, so a manager who sold in July still shows the position in a filing published in August. This page reads the managers on file here rather than every filer in the market, and each manager’s largest positions rather than the whole table, so a small position in a very large book may not appear. Say “their last filing showed” rather than “they own”, and the distinction will do you credit.
What to do with a name the funds are buying
Knowing who owns something is the start of a pitch, not the pitch. The next questions are what it is worth and why they were buying.
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The holdings, every quarter, and the week between
One email a week on what moved in the market and what it means for the people interviewing into it, with the 13F changes the quarter they are filed.
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