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Korro Bio

92 hedge funds and large institutions have $466M invested in Korro Bio in 2025 Q3 according to their latest regulatory filings, with 27 funds opening new positions, 28 increasing their positions, 20 reducing their positions, and 5 closing their positions.

New
Increased
Maintained
Reduced
Closed

440% more first-time investments, than exits

New positions opened: 27 | Existing positions closed: 5

306% more capital invested

Capital invested by funds: $115M → $466M (+$351M)

40% more repeat investments, than reductions

Existing positions increased: 28 | Existing positions reduced: 20

31% more funds holding

Funds holding: 7092 (+22)

7.58% more ownership

Funds ownership: 96.4%103.97% (+7.6%)

0% more funds holding in top 10

Funds holding in top 10: 33 (0)

Holders
92
Holders Change
+22
Holders Change %
+31.43%
% of All Funds
1.21%
Holding in Top 10
3
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.04%
New
27
Increased
28
Reduced
20
Closed
5
Calls
Puts
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
AVLSA
1
Atlas Venture Life Science Advisors
Massachusetts
$54.5M
NMC
2
NEA Management Company
Maryland
$52.2M
DCM
3
Driehaus Capital Management
Illinois
$32.2M +$2.02M +91,122 +16%
Fidelity Investments
4
Fidelity Investments
Massachusetts
$27M -$1.68M -75,541 -12%
Point72 Asset Management
5
Point72 Asset Management
Connecticut
$25.5M -$180K -8,105 -2%
CAM
6
Cormorant Asset Management
Massachusetts
$22.3M
BlackRock
7
BlackRock
New York
$21.4M -$337K -15,191 -3%
SL
8
Siren LLC
Connecticut
$20.1M
TCM
9
TCG Crossover Management
California
$19.9M +$9.24M +416,301 New
Vanguard Group
10
Vanguard Group
Pennsylvania
$18.9M +$198K +8,921 +2%
QUSVM
11
Qiming U.S. Ventures Management
Washington
$17.6M
TLP
12
Tri Locum Partners
New York
$16.2M +$4.4M +198,271 +142%
7IH
13
72 Investment Holdings
Connecticut
$13.3M
PCH
14
Polar Capital Holdings
United Kingdom
$12.7M +$326K +14,694 +6%
Millennium Management
15
Millennium Management
New York
$12.5M +$103K +4,650 +2%
JP Morgan Chase
16
JP Morgan Chase
New York
$9.54M +$4.35M +196,079 +6,185%
Morgan Stanley
17
Morgan Stanley
New York
$8.02M +$1.9M +85,761 +105%
Geode Capital Management
18
Geode Capital Management
Massachusetts
$7.8M +$167K +7,545 +5%
Citadel Advisors
19
Citadel Advisors
Florida
$7.37M -$4.37M -196,718 -56%
Raymond James Financial
20
Raymond James Financial
Florida
$7.13M +$1.46M +65,579 +79%
State Street
21
State Street
Massachusetts
$5.97M +$58.3K +2,629 +2%
BOCH
22
Blue Owl Capital Holdings
New York
$5.03M -$444K -20,000 -16%
SSA
23
Schonfeld Strategic Advisors
New York
$4.32M +$2M +90,186 New
Two Sigma Investments
24
Two Sigma Investments
New York
$3.09M +$615K +27,709 +75%
DCM
25
DAFNA Capital Management
California
$2.91M +$69.1K +3,113 +5%

KRRO Hedge Fund Activity: Q3 2025 in Review

92 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in Korro Bio (KRRO) for Q3 2025, worth a combined $466M — up 306% from $115M a quarter earlier.

Buyers outnumbered sellers: 27 funds opened new KRRO positions and 5 closed out — a net gain of 22 holders — while 28 added to existing stakes and 20 trimmed.

The largest buyer was TCG Crossover Management, opening a new position worth an estimated $9.24M. The largest seller was Citadel Advisors, cutting an estimated $4.37M.

  • 92 institutional investors held Korro Bio (KRRO) as of Q3 2025, up from 70 in Q2 2025.
  • Funds reported $466M of Korro Bio stock for Q3 2025, up 306% quarter-over-quarter.
  • 27 funds opened new Korro Bio positions in Q3 2025 and 5 closed out, a net change of +22 holders.
  • The largest Korro Bio buyer in Q3 2025 was TCG Crossover Management, an estimated $9.24M added.
  • The largest Korro Bio seller in Q3 2025 was Citadel Advisors, an estimated $4.37M sold.

Based on aggregated 13F filings for Q3 2025.