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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
BCM
251
Bronte Capital Management
Australia
– -$14.9M -156,747 Closed
GPP
252
Great Point Partners
Connecticut
– -$12.7M -150,000 Closed
PHP
253
Parkman Healthcare Partners
Connecticut
– -$4.69M -55,197 Closed
HF
254
HRT Financial
New York
– -$4.51M -53,078 Closed
CF
255
Cantor Fitzgerald
New York
– -$2.97M -35,000 Closed
LP
256
Longaeva Partners
Illinois
– -$2.79M -32,886 Closed
QOP
257
Quinn Opportunity Partners
Virginia
– -$2.63M -31,000 Closed
PFM
258
Privium Fund Management
Netherlands
– -$2.58M -30,412 Closed
TAM
259
TFG Asset Management
Cayman Islands
– -$2.55M -30,000 Closed
VF
260
Virtu Financial
New York
– -$1.62M -19,095 Closed
Acadian Asset Management
261
Acadian Asset Management
Massachusetts
– -$1.41M -16,608 Closed
JG
262
Jain Global
New York
– -$942K -11,099 Closed
DACS
263
Dymon Asia Capital (Singapore)
Singapore
– -$849K -10,000 Closed
XT
264
XTX Topco
Cayman Islands
– -$792K -9,332 Closed
SRL
265
Scientech Research LLC
New Jersey
– -$789K -9,294 Closed
IWC
266
Integrated Wealth Concepts
Massachusetts
– -$308K -3,633 Closed
MG
267
Marex Group
– -$289K -3,402 Closed
ATS
268
Ashton Thomas Securities
New York
– -$212K -2,500 Closed
SCM
269
Stonepine Capital Management
Oregon
– -$212K -2,500 Closed
GCS
270
Gordian Capital (Singapore)
Singapore
– -$76.4K -900 Closed
PS
271
Principal Securities
Iowa
– -$1.78K -21 Closed
7 8 9 10
11

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.