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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
SC
76
Samlyn Capital
New York
$11.4M +$9.2M +84,286 New
NIP
77
Nicholas Investment Partners
California
$11.2M +$6.94M +63,640 +328%
OBAM
78
ODDO BHF Asset Management
France
$10.7M +$8.66M +79,350 New
AP
79
Andera Partners
$10.5M +$8.52M +78,125 New
DP
80
Diadema Partners
New Jersey
$10.2M +$3.71M +34,024 +82%
SB
81
Samsara BioCapital
California
$10.2M – – –
HS
82
HighVista Strategies
Massachusetts
$9.73M -$12.3M -112,283 -61%
ABG
83
Ally Bridge Group
New York
$9.44M +$7.64M +70,000 New
Ameriprise
84
Ameriprise
Minnesota
$9.12M +$987K +9,047 +15%
VCIM
85
Velan Capital Investment Management
Georgia
$9.04M +$285K +2,611 +4%
RCAP
86
Resolute Capital Asset Partners
Colorado
$8.77M +$2.73M +25,000 +63%
Russell Investments Group
87
Russell Investments Group
United Kingdom
$8.69M +$2.46M +22,579 +54%
TD Asset Management
88
TD Asset Management
Ontario, Canada
$8.62M +$1.9M +17,416 +37%
ACM
89
ACT Capital Management
Pennsylvania
$8.62M +$6.97M +63,900 New
LPL Financial
90
LPL Financial
California
$8.47M +$3.67M +33,595 +115%
Verition Fund Management
91
Verition Fund Management
Connecticut
$8.27M +$513K +4,699 +8%
Marshall Wace
92
Marshall Wace
United Kingdom
$8.06M -$14.2M -129,946 -68%
MB
93
MPM BioImpact
Massachusetts
$7.59M +$6.14M +56,316 New
SC
94
SummitTX Capital
Texas
$7.58M +$3.31M +30,354 +118%
ACM
95
Atika Capital Management
New York
$7.42M -$1.53M -14,000 -20%
YIH
96
Y-Intercept (HK)
Hong Kong
$7.42M +$6M +54,993 New
EAM
97
Erste Asset Management
Austria
$7.02M – – –
Geode Capital Management
98
Geode Capital Management
Massachusetts
$6.73M +$2.19M +20,081 +67%
SSC
99
Spruce Street Capital
New York
$6.62M +$5.36M +49,119 New
DCP
100
Davern Capital Partners
New York
$6.54M +$5.29M +48,502 New
2 3
4
5 6

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.