Korro Bio
KRRO
107 hedge funds and large institutions have $190M invested in Korro Bio in 2026 Q2 according to their latest regulatory filings, with 21 funds opening new positions, 47 increasing their positions, 19 reducing their positions, and 11 closing their positions.
151% more call options, than puts
Call options by funds: $1.35M | Put options by funds: $539K
147% more repeat investments, than reductions
Existing positions increased: 47 | Existing positions reduced: 19
91% more first-time investments, than exits
New positions opened: 21 | Existing positions closed: 11
31% more capital invested
Capital invested by funds: $145M → $190M (+$45.3M)
11.26% more ownership
Funds ownership: 88.76% → 100.02% (+11%)
8% more funds holding
Funds holding: 99 → 107 (+8)
0% more funds holding in top 10
Funds holding in top 10: 4 → 4 (0)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
+$4.44M |
| 2 |
Adage Capital Partners
Boston,
Massachusetts
|
+$3.88M |
| 3 |
KCM
Kalehua Capital Management
Dallas,
Texas
|
+$3.67M |
| 4 |
Vanguard Capital Management
Malvern,
Pennsylvania
|
+$1.79M |
| 5 |
Geode Capital Management
Boston,
Massachusetts
|
+$1.53M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AVLSA
Atlas Venture Life Science Advisors
Cambridge,
Massachusetts
|
-$2.17M |
| 2 |
Jane Street
New York
|
-$1.31M |
| 3 |
Balyasny Asset Management
Chicago,
Illinois
|
-$1.1M |
| 4 |
TI
Trexquant Investment
Stamford,
Connecticut
|
-$556K |
| 5 |
Acadian Asset Management
Boston,
Massachusetts
|
-$340K |
KRRO Hedge Fund Activity: Q2 2026 in Review
107 of the 8,318 institutional investors tracked by Wall St. Rank reported a position in Korro Bio (KRRO) for Q2 2026, worth a combined $190M — up 31% from $145M a quarter earlier.
Buyers outnumbered sellers: 21 funds opened new KRRO positions and 11 closed out — a net gain of 10 holders — while 47 added to existing stakes and 19 trimmed.
The largest buyer was BlackRock, adding an estimated $4.44M. The largest seller was Atlas Venture Life Science Advisors, cutting an estimated $2.17M.
- 107 institutional investors held Korro Bio (KRRO) as of Q2 2026, up from 99 in Q1 2026.
- Funds reported $190M of Korro Bio stock for Q2 2026, up 31% quarter-over-quarter.
- 21 funds opened new Korro Bio positions in Q2 2026 and 11 closed out, a net change of +10 holders.
- The largest Korro Bio buyer in Q2 2026 was BlackRock, an estimated $4.44M added.
- The largest Korro Bio seller in Q2 2026 was Atlas Venture Life Science Advisors, an estimated $2.17M sold.
Based on aggregated 13F filings for Q2 2026.