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Korro Bio
KRRO

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: 70 → 92 (+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: 3 → 3 (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
–

Top Buyers

Rank Fund Capital Flow
1
TCM
TCG Crossover Management
California
+$9.24M
2
TLP
Tri Locum Partners
New York
+$4.4M
3
JP Morgan Chase
JP Morgan Chase
New York
+$4.35M
4
DCM
Driehaus Capital Management
Illinois
+$2.02M
5
SSA
Schonfeld Strategic Advisors
New York
+$2M

Top Sellers

Rank Fund Capital Flow
1
Citadel Advisors
Citadel Advisors
Florida
-$4.37M
2
DTC
Deep Track Capital
Connecticut
-$3.47M
3
ABG
Ally Bridge Group
New York
-$1.93M
4
Fidelity Investments
Fidelity Investments
Massachusetts
-$1.68M
5
ACM
ADAR1 Capital Management
Texas
-$634K
Name Holding Trade Value Shares
Change 		Change in
Stake
EMFAT
26
Emerald Mutual Fund Advisers Trust
Pennsylvania
$2.82M +$1.31M +58,911 New
Aberdeen Group
27
Aberdeen Group
United Kingdom
$2.78M -$587K -26,445 -31%
Northern Trust
28
Northern Trust
Illinois
$2.74M -$13.2K -595 -1%
FMI
29
F/M Investments
District of Columbia
$2.65M +$1.23M +55,245 New
UBS Group
30
UBS Group
Switzerland
$2.54M +$766K +34,522 +186%
WP
31
Woodline Partners
California
$2.4M – – –
AQR Capital Management
32
AQR Capital Management
Connecticut
$2.32M +$1.07M +48,407 New
Renaissance Technologies
33
Renaissance Technologies
New York
$1.93M -$118K -5,300 -12%
ACM
34
ADAR1 Capital Management
Texas
$1.93M -$634K -28,580 -42%
TI
35
Trexquant Investment
Connecticut
$1.83M +$386K +17,390 +83%
RSCM
36
Rock Springs Capital Management
Maryland
$1.71M – – –
O
37
OrbiMed
New York
$1.55M – – –
Charles Schwab
38
Charles Schwab
California
$1.11M +$118K +5,325 +30%
EP
39
Eversept Partners
New York
$999K +$463K +20,856 New
Bank of New York Mellon
40
Bank of New York Mellon
New York
$925K +$61.9K +2,791 +17%
EA
41
Emerald Advisers
Pennsylvania
$789K +$365K +16,469 New
Goldman Sachs
42
Goldman Sachs
New York
$751K +$348K +15,681 New
Two Sigma Advisers
43
Two Sigma Advisers
New York
$546K +$253K +11,409 New
William Blair & Company
44
William Blair & Company
Illinois
$467K +$216K +9,750 New
RhumbLine Advisers
45
RhumbLine Advisers
Massachusetts
$447K -$3.73K -168 -2%
N
46
Nuveen
North Carolina
$444K +$206K +9,264 New
American Century Companies
47
American Century Companies
Missouri
$419K +$194K +8,757 New
AllianceBernstein
48
AllianceBernstein
Tennessee
$369K +$171K +7,700 New
AG
49
Algert Global
California
$340K +$158K +7,108 New
QCM
50
Quantinno Capital Management
New York
$294K +$136K +6,143 New
1
2
3 4

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.