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LONA

LeonaBio Inc
LONA

40 hedge funds and large institutions have $66M invested in LeonaBio Inc in 2026 Q1 according to their latest regulatory filings, with 6 funds opening new positions, 11 increasing their positions, 6 reducing their positions, and 6 closing their positions.

New
Increased
Maintained
Reduced
Closed

83% more repeat investments, than reductions

Existing positions increased: 11 | Existing positions reduced: 6

41% more capital invested

Capital invested by funds: $46.7M → $66M (+$19.3M)

0% more first-time investments, than exits

New positions opened: 6 | Existing positions closed: 6

5% less funds holding

Funds holding: 42 → 40 (-2)

88.2% less ownership

Funds ownership: 157.34% → 69.13% (-88%)

Holders
40
Holders Change
-2
Holders Change %
-4.76%
% of All Funds
0.49%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
6
Increased
11
Reduced
6
Closed
6
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
ACM
ADAR1 Capital Management
Texas
+$2.17M
2
ACA
Acorn Capital Advisors
New York
+$864K
3
Geode Capital Management
Geode Capital Management
Massachusetts
+$321K
4
SFCM
Seven Fleet Capital Management
California
+$239K
5
BlackRock
BlackRock
New York
+$120K

Top Sellers

Rank Fund Capital Flow
1
Millennium Management
Millennium Management
New York
-$1.9M
2
Pathstone Holdings
Pathstone Holdings
New Jersey
-$279K
3
Acadian Asset Management
Acadian Asset Management
Massachusetts
-$177K
4
Susquehanna International Group
Susquehanna International Group
Pennsylvania
-$158K
5
Jane Street
Jane Street
New York
-$99.8K
Name Holding Trade Value Shares
Change 		Change in
Stake
Vanguard Global Advisers
26
Vanguard Global Advisers
Pennsylvania
$13.6K +$8.62K +1,325 New
UBS Group
27
UBS Group
Switzerland
$13.4K -$13.6K -2,089 -62%
AGWCA
28
Annis Gardner Whiting Capital Advisors
Florida
$10.3K +$6.5K +1,000 New
Morgan Stanley
29
Morgan Stanley
New York
$4.84K +$7 +1 +0.2%
NA
30
NewEdge Advisors
Louisiana
$4.21K +$2.34K +360 +720%
ACA
31
American Capital Advisory
Idaho
$2.06K – – –
RIL
32
Rothschild Investment LLC
Illinois
$1.54K – – –
ME
33
McIlrath & Eck
Washington
$843 – – –
US Bancorp
34
US Bancorp
Minnesota
$833 – – –
Jones Financial Companies
35
Jones Financial Companies
Missouri
$296 – – –
BNP Paribas Financial Markets
36
BNP Paribas Financial Markets
France
$236 – – –
SS
37
SBI Securities
Japan
$123 – – –
JP Morgan Chase
38
JP Morgan Chase
New York
$111 – – –
CIAM
39
Caitong International Asset Management
Hong Kong
$62 +$39 +6 New
Citigroup
40
Citigroup
New York
$10 +$7 +1 New
Pathstone Holdings
41
Pathstone Holdings
New Jersey
– -$279K -38,606 Closed
Susquehanna International Group
42
Susquehanna International Group
Pennsylvania
– -$158K -20,936 Closed
Jane Street
43
Jane Street
New York
– -$99.8K -13,186 Closed
SRL
44
Scientech Research LLC
New Jersey
– -$76.5K -10,108 Closed
TRCT
45
Tower Research Capital (TRC)
New York
– -$2.87K -379 Closed
Group One Trading
46
Group One Trading
Illinois
– -$522 -69 Closed
1
2

LONA Hedge Fund Activity: Q1 2026 in Review

40 of the 8,169 institutional investors tracked by Wall St. Rank reported a position in LeonaBio Inc (LONA) for Q1 2026, worth a combined $66M — up 41% from $46.7M a quarter earlier.

Fund positioning in LONA was balanced in Q1 2026: 6 funds opened new positions, 6 closed out, 11 added to existing stakes and 6 trimmed.

The largest buyer was ADAR1 Capital Management, adding an estimated $2.17M. The largest seller was Millennium Management, cutting an estimated $1.9M.

  • 40 institutional investors held LeonaBio Inc (LONA) as of Q1 2026, down from 42 in Q4 2025.
  • Funds reported $66M of LeonaBio Inc stock for Q1 2026, up 41% quarter-over-quarter.
  • 6 funds opened new LeonaBio Inc positions in Q1 2026 and 6 closed out, a net change of 0 holders.
  • The largest LeonaBio Inc buyer in Q1 2026 was ADAR1 Capital Management, an estimated $2.17M added.
  • The largest LeonaBio Inc seller in Q1 2026 was Millennium Management, an estimated $1.9M sold.

Based on aggregated 13F filings for Q1 2026.