Caribou Biosciences
CRBU
137 hedge funds and large institutions have $84.8M invested in Caribou Biosciences in 2026 Q2 according to their latest regulatory filings, with 23 funds opening new positions, 46 increasing their positions, 24 reducing their positions, and 22 closing their positions.
217% more call options, than puts
Call options by funds: $555K | Put options by funds: $175K
92% more repeat investments, than reductions
Existing positions increased: 46 | Existing positions reduced: 24
19% more capital invested
Capital invested by funds: $71.3M → $84.8M (+$13.4M)
9.61% more ownership
Funds ownership: 39.16% → 48.77% (+9.6%)
5% more first-time investments, than exits
New positions opened: 23 | Existing positions closed: 22
0% more funds holding
Funds holding: 137 → 137 (0)
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
+$11.2M |
| 2 |
Mackenzie Financial
Toronto Ontario,
Ontario, Canada
|
+$5.35M |
| 3 |
Geode Capital Management
Boston,
Massachusetts
|
+$2.68M |
| 4 |
State Street
Boston,
Massachusetts
|
+$2.39M |
| 5 |
Acadian Asset Management
Boston,
Massachusetts
|
+$1.68M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Aberdeen Group
Edinburgh,
United Kingdom
|
-$2.3M |
| 2 |
Millennium Management
New York
|
-$2.02M |
| 3 |
Marshall Wace
London,
United Kingdom
|
-$1.64M |
| 4 |
Two Sigma Investments
New York
|
-$1.41M |
| 5 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$1.33M |
CRBU Hedge Fund Activity: Q2 2026 in Review
137 of the 8,305 institutional investors tracked by Wall St. Rank reported a position in Caribou Biosciences (CRBU) for Q2 2026, worth a combined $84.8M — up 19% from $71.3M a quarter earlier.
Buyers outnumbered sellers: 23 funds opened new CRBU positions and 22 closed out — a net gain of 1 holder — while 46 added to existing stakes and 24 trimmed.
The largest buyer was BlackRock, adding an estimated $11.2M. The largest seller was Aberdeen Group, exiting entirely with an estimated $2.3M sold.
- 137 institutional investors held Caribou Biosciences (CRBU) as of Q2 2026, unchanged from Q1 2026.
- Funds reported $84.8M of Caribou Biosciences stock for Q2 2026, up 19% quarter-over-quarter.
- 23 funds opened new Caribou Biosciences positions in Q2 2026 and 22 closed out, a net change of +1 holder.
- The largest Caribou Biosciences buyer in Q2 2026 was BlackRock, an estimated $11.2M added.
- The largest Caribou Biosciences seller in Q2 2026 was Aberdeen Group, an estimated $2.3M sold.
Based on aggregated 13F filings for Q2 2026.