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Korro Bio

99 hedge funds and large institutions have $145M invested in Korro Bio in 2026 Q1 according to their latest regulatory filings, with 33 funds opening new positions, 33 increasing their positions, 20 reducing their positions, and 15 closing their positions.

New
Increased
Maintained
Reduced
Closed

139% more capital invested

Capital invested by funds: $60.6M → $145M (+$84.3M)

120% more first-time investments, than exits

New positions opened: 33 | Existing positions closed: 15

65% more repeat investments, than reductions

Existing positions increased: 33 | Existing positions reduced: 20

19% more funds holding

Funds holding: 8399 (+16)

8.46% more ownership

Funds ownership: 80.3%88.76% (+8.5%)

0% more funds holding in top 10

Funds holding in top 10: 44 (0)

52% less call options, than puts

Call options by funds: $1.8M | Put options by funds: $3.73M

Holders
99
Holders Change
+16
Holders Change %
+19.28%
% of All Funds
1.22%
Holding in Top 10
4
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.05%
New
33
Increased
33
Reduced
20
Closed
15
Calls
$1.8M
Puts
$3.73M
Net Calls
-$1.94M
Net Calls Change
+$5.83M
Name Holding Trade Value Shares
Change
Change in
Stake
LCM
1
Lynx1 Capital Management
Puerto Rico
$17.4M +$9.47M +860,381 +127%
NMC
2
NEA Management Company
Maryland
$14.7M +$2.28M +207,100 +19%
AVLSA
3
Atlas Venture Life Science Advisors
Massachusetts
$12.9M
Balyasny Asset Management
4
Balyasny Asset Management
Illinois
$11.8M +$11.4M +1,040,054 New
VA
5
VR Adviser
New York
$11.4M +$11.1M +1,009,500 New
AAA
6
Affinity Asset Advisors
New York
$8M +$7.78M +706,904 New
NCM
7
Nantahala Capital Management
Connecticut
$7.47M +$661K +60,036 +10%
ACM
8
ADAR1 Capital Management
Texas
$6.11M +$5.95M +540,054 New
BlackRock
9
BlackRock
New York
$5.21M +$28.7K +2,607 +0.6%
DCM
10
Driehaus Capital Management
Illinois
$5.09M +$4.95M +450,045 New
TCM
11
TCG Crossover Management
California
$4.71M
SL
12
Siren LLC
Connecticut
$3.94M
VCM
13
Vanguard Capital Management
Pennsylvania
$3.52M +$3.42M +310,913 New
7IH
14
72 Investment Holdings
Connecticut
$3.13M
AQR Capital Management
15
AQR Capital Management
Connecticut
$3.03M +$2.5M +227,108 +559%
Adage Capital Partners
16
Adage Capital Partners
Massachusetts
$2.59M +$2.51M +228,400 New
Geode Capital Management
17
Geode Capital Management
Massachusetts
$1.97M +$120K +10,883 +7%
Two Sigma Investments
18
Two Sigma Investments
New York
$1.87M +$952K +86,488 +110%
VPM
19
Vanguard Portfolio Management
Pennsylvania
$1.68M +$1.64M +148,559 New
State Street
20
State Street
Massachusetts
$1.59M -$64.7K -5,880 -4%
Renaissance Technologies
21
Renaissance Technologies
New York
$1.54M +$675K +61,327 +82%
Jane Street
22
Jane Street
New York
$1.31M -$1.9M -172,753 -60%
KCM
23
Kalehua Capital Management
Texas
$1.24M +$1.2M +109,376 New
Millennium Management
24
Millennium Management
New York
$720K -$1.07M -97,486 -61%
EMFAT
25
Emerald Mutual Fund Advisers Trust
Pennsylvania
$712K -$29.6K -2,693 -4%

KRRO Hedge Fund Activity: Q1 2026 in Review

99 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Korro Bio (KRRO) for Q1 2026, worth a combined $145M — up 139% from $60.6M a quarter earlier.

Buyers outnumbered sellers: 33 funds opened new KRRO positions and 15 closed out — a net gain of 18 holders — while 33 added to existing stakes and 20 trimmed.

The largest buyer was Balyasny Asset Management, opening a new position worth an estimated $11.4M. The largest seller was Susquehanna International Group, exiting entirely with an estimated $2.17M sold.

  • 99 institutional investors held Korro Bio (KRRO) as of Q1 2026, up from 83 in Q4 2025.
  • Funds reported $145M of Korro Bio stock for Q1 2026, up 139% quarter-over-quarter.
  • 33 funds opened new Korro Bio positions in Q1 2026 and 15 closed out, a net change of +18 holders.
  • The largest Korro Bio buyer in Q1 2026 was Balyasny Asset Management, an estimated $11.4M added.
  • The largest Korro Bio seller in Q1 2026 was Susquehanna International Group, an estimated $2.17M sold.

Based on aggregated 13F filings for Q1 2026.