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Korro Bio
KRRO

70 hedge funds and large institutions have $115M invested in Korro Bio in 2025 Q2 according to their latest regulatory filings, with 10 funds opening new positions, 26 increasing their positions, 13 reducing their positions, and 15 closing their positions.

New
Increased
Maintained
Reduced
Closed

100% more repeat investments, than reductions

Existing positions increased: 26 | Existing positions reduced: 13

0% more funds holding in top 10

Funds holding in top 10: 3 → 3 (0)

7% less funds holding

Funds holding: 75 → 70 (-5)

6.96% less ownership

Funds ownership: 103.35% → 96.4% (-7%)

32% less capital invested

Capital invested by funds: $169M → $115M (-$54.2M)

33% less first-time investments, than exits

New positions opened: 10 | Existing positions closed: 15

Holders
70
Holders Change
-5
Holders Change %
-6.67%
% of All Funds
0.92%
Holding in Top 10
3
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.04%
New
10
Increased
26
Reduced
13
Closed
15
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Millennium Management
Millennium Management
New York
+$2.11M
2
BOCH
Blue Owl Capital Holdings
New York
+$1.8M
3
Citadel Advisors
Citadel Advisors
Florida
+$1.4M
4
ABG
Ally Bridge Group
New York
+$1.36M
5
CAM
Cormorant Asset Management
Massachusetts
+$1.22M

Top Sellers

Rank Fund Capital Flow
1
AllianceBernstein
AllianceBernstein
Tennessee
-$11.8M
2
DTC
Deep Track Capital
Connecticut
-$8.59M
3
Franklin Resources
Franklin Resources
California
-$1.6M
4
UBS Group
UBS Group
Switzerland
-$801K
5
SSA
Schonfeld Strategic Advisors
New York
-$531K
Name Holding Trade Value Shares
Change 		Change in
Stake
DCM
26
DAFNA Capital Management
California
$721K +$153K +10,605 +23%
WP
27
Woodline Partners
California
$626K – – –
Renaissance Technologies
28
Renaissance Technologies
New York
$571K +$658K +45,700 New
Two Sigma Investments
29
Two Sigma Investments
New York
$459K +$529K +36,746 New
RSCM
30
Rock Springs Capital Management
Maryland
$446K – – –
O
31
OrbiMed
New York
$405K – – –
Bank of America
32
Bank of America
North Carolina
$352K +$340K +23,615 +520%
A
33
AlphaQuest
New York
$340K +$259K +18,015 +196%
D.E. Shaw & Co
34
D.E. Shaw & Co
New York
$305K +$351K +24,383 New
TI
35
Trexquant Investment
Connecticut
$261K +$301K +20,870 New
UBS Group
36
UBS Group
Switzerland
$232K -$801K -55,630 -75%
Charles Schwab
37
Charles Schwab
California
$222K -$7.37K -512 -3%
Bank of New York Mellon
38
Bank of New York Mellon
New York
$206K +$5.89K +409 +3%
Walleye Capital
39
Walleye Capital
New York
$201K -$214K -14,895 -48%
RhumbLine Advisers
40
RhumbLine Advisers
Massachusetts
$119K +$6.37K +442 +5%
Royal Bank of Canada
41
Royal Bank of Canada
Ontario, Canada
$82K +$7.32K +508 +8%
QL
42
Quarry LP
New York
$56.2K +$35.8K +2,489 +124%
Wells Fargo
43
Wells Fargo
California
$54.1K +$7.78K +540 +14%
Deutsche Bank
44
Deutsche Bank
Germany
$45.2K – – –
Mirae Asset Global ETFs Holdings
45
Mirae Asset Global ETFs Holdings
Hong Kong
$43.7K -$2.25K -156 -4%
JP Morgan Chase
46
JP Morgan Chase
New York
$39.6K +$1.45K +101 +3%
New York State Common Retirement Fund
47
New York State Common Retirement Fund
New York
$37.5K – – –
TRCT
48
Tower Research Capital (TRC)
New York
$33.8K +$28K +1,945 +255%
Citigroup
49
Citigroup
New York
$31K -$33.8K -2,347 -49%
NSIM
50
North Star Investment Management
Illinois
$22.5K – – –
1
2
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KRRO Hedge Fund Activity: Q2 2025 in Review

70 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Korro Bio (KRRO) for Q2 2025, worth a combined $115M — down 32% from $169M a quarter earlier.

Sellers outnumbered buyers: 15 funds closed out of KRRO and 10 opened new positions — a net loss of 5 holders — while 13 trimmed existing stakes and 26 added.

The largest buyer was Millennium Management, adding an estimated $2.11M. The largest seller was AllianceBernstein, exiting entirely with an estimated $11.8M sold.

  • 70 institutional investors held Korro Bio (KRRO) as of Q2 2025, down from 75 in Q1 2025.
  • Funds reported $115M of Korro Bio stock for Q2 2025, down 32% quarter-over-quarter.
  • 10 funds opened new Korro Bio positions in Q2 2025 and 15 closed out, a net change of -5 holders.
  • The largest Korro Bio buyer in Q2 2025 was Millennium Management, an estimated $2.11M added.
  • The largest Korro Bio seller in Q2 2025 was AllianceBernstein, an estimated $11.8M sold.

Based on aggregated 13F filings for Q2 2025.