Abivax S.A.

ABVXNASDAQ

$91.73-1.15 (-1.24%)as of Oct 5, 2026

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

Abivax S.A. price and activity chart data

Showing the 1Y range: Oct 6, 2025 to Oct 5, 2026. Price (+5.8%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
TCG Crossover Management, LLC	7.65%	$801M	19.24%	Reduce 7.30%
Darwin Global Management, Ltd.	4.61%	$348M	9.26%	Add 4.41%
Helikon Investments Ltd	3.55%	$371M	11.10%	Add 175.05%
Vestal Point Capital, LP	2.99%	$313M	7.32%	Add 56.63%
Jupiter Topco LLC	2.44%	$255M	0.10%	Not reported
UBS Group AG	2.35%	$246M	0.03%	Not reported
ADAR1 Capital Management, LLC	2.30%	$240M	11.01%	Add 29.46%
Caligan Partners LP	1.98%	$208M	9.77%	Add 6.57%
Citadel Advisors LLC	1.83%	$192M	0.02%	Not reported
Morgan Stanley	1.82%	$191M	0.01%	Not reported
Westfield Capital Management Co LP	1.67%	$175M	0.57%	Reduce 0.99%
Ra Capital Management, L.P.	1.44%	$151M	1.31%	New Not reported
Norges Bank	1.40%	$147M	0.01%	Not reported
Susquehanna International Group, LLP	1.34%	$140M	0.01%	Not reported
Logos Global Management LP	1.30%	$136M	5.87%	Add 51.70%
Octagon Capital Advisors LP	1.26%	$132M	11.89%	Add 46.68%
Bank of America Corp	1.24%	$129M	0.01%	Not reported
Eversept Partners, LP	1.16%	$122M	6.32%	Reduce 2.20%
Goldman Sachs Group Inc	1.01%	$106M	0.01%	Not reported
Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A.	0.97%	$102M	5.59%	Reduce 0.08%
Cormorant Asset Management, LP	0.86%	$90M	4.61%	Reduce 11.18%
Boxer Capital Management, LLC	0.77%	$80.6M	6.07%	Add 202.50%
Balyasny Asset Management L.P.	0.77%	$80.5M	0.10%	Not reported
Siren, L.L.C.	0.73%	$76.8M	1.55%	New Not reported
BlackRock, Inc.	0.73%	$76.5M	0.00%	Not reported
Boothbay Fund Management, LLC	0.72%	$75.1M	0.99%	Not reported
Orbimed Advisors LLC	0.70%	$72.8M	1.35%	Not reported
Aberdeen Group plc	0.66%	$69.6M	0.10%	Add 21.05%
Saturn V Capital Management LP	0.66%	$69.1M	9.91%	Reduce 4.39%
Artia Global Partners LP	0.66%	$68.8M	12.70%	Reduce 14.03%
Ensign Peak Advisors, Inc	0.64%	$67.2M	0.11%	Reduce 20.16%
Pictet Asset Management Holding SA	0.63%	$65.6M	0.06%	Add 375.22%
First Turn Management, LLC	0.62%	$65.3M	6.98%	Add 5.16%
Holocene Advisors, LP	0.53%	$55.8M	0.13%	Add 61.86%
Vivo Capital, LLC	0.53%	$55.3M	5.05%	Add 73.21%
Summit Partners Public Asset Management, LLC	0.52%	$54.6M	0.96%	New Not reported
Eventide Asset Management, LLC	0.50%	$52.6M	0.70%	Add 23.20%
MPM Bioimpact LLC	0.43%	$44.8M	2.73%	Add 213.56%
Affinity Asset Advisors, LLC	0.42%	$44M	1.99%	Reduce 18.52%
Ikarian Capital, LLC	0.42%	$43.4M	4.67%	Add 470.20%
Melqart Asset Management (UK) Ltd	0.39%	$40.9M	3.90%	New Not reported
Kite Lake Capital Management (UK) LLP	0.38%	$40.1M	13.82%	Add 200.60%
Stempoint Capital LP	0.36%	$37.8M	6.51%	Not reported
Nantahala Capital Management, LLC	0.34%	$35.6M	0.59%	Add 94.93%
Principal Financial Group Inc	0.33%	$34.3M	0.02%	Not reported
Two Seas Capital LP	0.31%	$32.6M	0.65%	New Not reported
Readystate Asset Management LP	0.31%	$32.2M	1.10%	Add 19.56%
Millennium Management LLC	0.30%	$31.1M	0.01%	Not reported
Woodline Partners LP	0.29%	$30.2M	0.09%	Not reported
Patient Square Capital LP	0.26%	$27.5M	4.26%	Add 70.32%

50 of 285 holders

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