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ABVX

Abivax
ABVX

254 hedge funds and large institutions have $5.53B invested in Abivax in 2026 Q1 according to their latest regulatory filings, with 53 funds opening new positions, 111 increasing their positions, 75 reducing their positions, and 43 closing their positions.

New
Increased
Maintained
Reduced
Closed

63% more call options, than puts

Call options by funds: $233M | Put options by funds: $142M

48% more repeat investments, than reductions

Existing positions increased: 111 | Existing positions reduced: 75

23% more first-time investments, than exits

New positions opened: 53 | Existing positions closed: 43

3% more funds holding

Funds holding: 247 → 254 (+7)

9.05% less ownership

Funds ownership: 72.25% → 63.2% (-9%)

18% less funds holding in top 10

Funds holding in top 10: 34 → 28 (-6)

27% less capital invested

Capital invested by funds: $7.61B → $5.53B (-$2.08B)

Holders
254
Holders Change
+7
Holders Change %
+2.83%
% of All Funds
3.13%
Holding in Top 10
28
Holding in Top 10 Change
-6
Holding in Top 10 Change %
-17.65%
% of All Funds
0.34%
New
53
Increased
111
Reduced
75
Closed
43
Calls
$233M
Puts
$142M
Net Calls
+$90.2M
Net Calls Change
-$23M

Top Buyers

1
HI
Helikon Investments
United Kingdom
+$120M
2
Westfield Capital Management
Westfield Capital Management
Massachusetts
+$37M
3
DGM
Darwin Global Management
Jersey
+$34.3M
4
EP
Eversept Partners
New York
+$32.7M
5
LGM
Logos Global Management
California
+$32.5M

Top Sellers

1
Point72 Asset Management
Point72 Asset Management
Connecticut
-$210M
2
Morgan Stanley
Morgan Stanley
New York
-$171M
3
Deutsche Bank
Deutsche Bank
Germany
-$103M
4
PBA
Paradigm Biocapital Advisors
New York
-$76.3M
5
TCM
TCG Crossover Management
California
-$74.6M
Name Holding Trade Value Shares
Change 		Change in
Stake
CDMG
51
Creek Drive Management Group
California
$17.3M +$6.09M +51,500 +50%
EQF
52
Evergreen Quality Fund
Cayman Islands
$16.1M -$9.47M -80,000 -36%
ECM
53
ExodusPoint Capital Management
New York
$15.6M -$8.88M -75,011 -35%
Hudson Bay Capital Management
54
Hudson Bay Capital Management
Connecticut
$15.5M -$8.15M -68,840 -33%
NCM
55
Nantahala Capital Management
Connecticut
$15.3M -$1.89M -15,998 -10%
SCM
56
Sio Capital Management
New York
$15.1M +$11M +92,676 +215%
SCM
57
Squadron Capital Management
Illinois
$14.5M -$1.78M -15,000 -10%
NFT
58
Nan Fung Trinity
Hong Kong
$14.4M +$1.84M +15,575 +14%
ACA
59
Apis Capital Advisors
New York
$14.3M +$4.71M +39,800 +45%
Invesco
60
Invesco
Georgia
$14.1M +$120K +1,017 +0.8%
PSC
61
Patient Square Capital
California
$13.5M -$1.04M -8,755 -7%
HS
62
HighVista Strategies
Massachusetts
$12.6M +$4.86M +41,069 +57%
TCM
63
TimesSquare Capital Management
New York
$12.2M -$2.39M -20,201 -16%
Federated Hermes
64
Federated Hermes
Pennsylvania
$12M – – –
MB
65
MPM BioImpact
Massachusetts
$11.9M +$6.03M +50,952 +90%
IMC Chicago
66
IMC Chicago
Illinois
$11.8M +$10.6M +89,624 +543%
FCM
67
Findell Capital Management
New York
$11.7M +$6.75M +57,000 +119%
PM
68
Prosight Management
Texas
$11.7M +$10.4M +88,000 +518%
Tudor Investment Corp
69
Tudor Investment Corp
Connecticut
$11.3M +$8.65M +73,075 +256%
Pictet Asset Management
70
Pictet Asset Management
Switzerland
$11.2M -$2.47M -20,904 -17%
KLCMU
71
Kite Lake Capital Management (UK)
United Kingdom
$11.1M +$11.8M +100,000 New
SEI Investments
72
SEI Investments
Pennsylvania
$10.5M +$836K +7,067 +8%
Jane Street
73
Jane Street
New York
$10.5M -$38.9M -329,116 -78%
Barclays
74
Barclays
United Kingdom
$10.1M -$25.8M -218,014 -71%
NIP
75
Nicholas Investment Partners
California
$10M +$845K +7,138 +9%
1 2
3
4 5

ABVX Hedge Fund Activity: Q1 2026 in Review

254 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Abivax (ABVX) for Q1 2026, worth a combined $5.53B — down 27% from $7.61B a quarter earlier.

Buyers outnumbered sellers: 53 funds opened new ABVX positions and 43 closed out — a net gain of 10 holders — while 111 added to existing stakes and 75 trimmed.

The largest buyer was Helikon Investments, opening a new position worth an estimated $120M. The largest seller was Point72 Asset Management, cutting an estimated $210M.

  • 254 institutional investors held Abivax (ABVX) as of Q1 2026, up from 247 in Q4 2025.
  • Funds reported $5.53B of Abivax stock for Q1 2026, down 27% quarter-over-quarter.
  • 53 funds opened new Abivax positions in Q1 2026 and 43 closed out, a net change of +10 holders.
  • The largest Abivax buyer in Q1 2026 was Helikon Investments, an estimated $120M added.
  • The largest Abivax seller in Q1 2026 was Point72 Asset Management, an estimated $210M sold.

Based on aggregated 13F filings for Q1 2026.