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ABVX

Abivax
ABVX

247 hedge funds and large institutions have $7.61B invested in Abivax in 2025 Q4 according to their latest regulatory filings, with 107 funds opening new positions, 76 increasing their positions, 50 reducing their positions, and 24 closing their positions.

New
Increased
Maintained
Reduced
Closed

346% more first-time investments, than exits

New positions opened: 107 | Existing positions closed: 24

73% more capital invested

Capital invested by funds: $4.41B → $7.61B (+$3.2B)

62% more funds holding in top 10

Funds holding in top 10: 21 → 34 (+13)

52% more repeat investments, than reductions

Existing positions increased: 76 | Existing positions reduced: 50

50% more funds holding

Funds holding: 165 → 247 (+82)

50% more call options, than puts

Call options by funds: $341M | Put options by funds: $228M

3.49% more ownership

Funds ownership: 68.76% → 72.25% (+3.5%)

Holders
247
Holders Change
+82
Holders Change %
+49.7%
% of All Funds
3%
Holding in Top 10
34
Holding in Top 10 Change
+13
Holding in Top 10 Change %
+61.9%
% of All Funds
0.41%
New
107
Increased
76
Reduced
50
Closed
24
Calls
$341M
Puts
$228M
Net Calls
+$113M
Net Calls Change
+$111M

Top Buyers

1
Morgan Stanley
Morgan Stanley
New York
+$183M
2
Westfield Capital Management
Westfield Capital Management
Massachusetts
+$110M
3
VPC
Vestal Point Capital
New York
+$98.2M
4
Deutsche Bank
Deutsche Bank
Germany
+$83.5M
5
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$78.6M

Top Sellers

1
CAM
Cormorant Asset Management
Massachusetts
-$65.5M
2
OCA
Octagon Capital Advisors
New York
-$62.1M
3
FFM
Fairmount Funds Management
Pennsylvania
-$60.6M
4
Point72 Asset Management
Point72 Asset Management
Connecticut
-$56.3M
5
VA
VR Adviser
New York
-$49M
Name Holding Trade Value Shares
Change 		Change in
Stake
FCM
101
Findell Capital Management
New York
$6.47M +$873K +8,000 +20%
Envestnet Asset Management
102
Envestnet Asset Management
Illinois
$6.16M +$2.77M +25,368 +125%
SCM
103
Soleus Capital Management
Connecticut
$6.07M +$4.91M +45,000 New
TI
104
Trexquant Investment
Connecticut
$5.9M -$1.38M -12,652 -22%
SCM
105
Sio Capital Management
New York
$5.82M +$4.71M +43,124 New
BHCM
106
Brevan Howard Capital Management
Jersey
$4.96M +$4.07M +37,270 New
Manulife (Manufacturers Life Insurance)
107
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$4.92M +$1.03M +9,396 +36%
MAM
108
Melqart Asset Management
United Kingdom
$4.45M -$3.4M -31,166 -49%
PHS
109
PFM Health Sciences
California
$4.3M +$3.48M +31,878 New
HP
110
HealthInvest Partners
Sweden
$4.26M +$3.45M +31,590 New
Royal Bank of Canada
111
Royal Bank of Canada
Ontario, Canada
$4.16M +$3.05M +27,912 +945%
LCM
112
Landscape Capital Management
New Jersey
$4.05M +$3.28M +30,054 New
PAP
113
Persistent Asset Partners
Hong Kong
$3.86M +$1.62M +14,809 +154%
Tudor Investment Corp
114
Tudor Investment Corp
Connecticut
$3.85M -$474K -4,347 -13%
ACM
115
Aquatic Capital Management
Illinois
$3.59M +$2.9M +26,608 New
GC
116
Guggenheim Capital
Illinois
$3.38M +$854K +7,828 +45%
BAMCO Inc
117
BAMCO Inc
New York
$3.37M +$1.2M +11,000 +79%
BNP Paribas Asset Management
118
BNP Paribas Asset Management
France
$3.35M +$2.71M +24,806 New
Walleye Capital
119
Walleye Capital
New York
$3.12M +$2.52M +23,109 New
KPF
120
K2 Principal Fund
Ontario, Canada
$3.03M +$2.45M +22,500 New
VOYA Investment Management
121
VOYA Investment Management
Georgia
$2.93M +$1.11M +10,180 +88%
Walleye Trading
122
Walleye Trading
New York
$2.41M +$1.95M +17,886 New
D.E. Shaw & Co
123
D.E. Shaw & Co
New York
$2.37M -$1.08M -9,937 -36%
Group One Trading
124
Group One Trading
Illinois
$2.34M +$1.7M +15,578 +863%
PM
125
Prosight Management
Texas
$2.29M +$1.85M +17,000 New
3 4
5
6 7

ABVX Hedge Fund Activity: Q4 2025 in Review

247 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in Abivax (ABVX) for Q4 2025, worth a combined $7.61B — up 73% from $4.41B a quarter earlier.

Buyers outnumbered sellers: 107 funds opened new ABVX positions and 24 closed out — a net gain of 83 holders — while 76 added to existing stakes and 50 trimmed.

The largest buyer was Morgan Stanley, adding an estimated $183M. The largest seller was Cormorant Asset Management, cutting an estimated $65.5M.

  • 247 institutional investors held Abivax (ABVX) as of Q4 2025, up from 165 in Q3 2025.
  • Funds reported $7.61B of Abivax stock for Q4 2025, up 73% quarter-over-quarter.
  • 107 funds opened new Abivax positions in Q4 2025 and 24 closed out, a net change of +83 holders.
  • The largest Abivax buyer in Q4 2025 was Morgan Stanley, an estimated $183M added.
  • The largest Abivax seller in Q4 2025 was Cormorant Asset Management, an estimated $65.5M sold.

Based on aggregated 13F filings for Q4 2025.