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ABVX · Abivax S.A.

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$120.56 +1.62 (+1.36%) At close · Aug 19
Market Cap
$10.38B
Shares
87.25M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 307
Total Value: $8,874,367,735
Total Shares: 66,594,936

Institutional Ownership Trend

11 quarters

Holder Concentration

Across 307 13F filers · Δ vs Mar 31, 2026
Top Holder
9.0%
Dec 2023 → Jun 2026 · range 9.0% – 22.1%
−3.2 pts
Top 5
32.0%
Dec 2023 → Jun 2026 · range 32.0% – 59.4%
−1.4 pts
Top 10
46.3%
Dec 2023 → Jun 2026 · range 46.3% – 82.1%
−0.0 pts
HHI
309
Dec 2023 → Jun 2026 · range 309 – 995
Broadly held−63

Quarterly Activity

vs Mar 31, 2026
New
96
Increased
101
Decreased
97
Sold Out
43
Unchanged
13
Holder count: +53
Institutional value: +50.4%
Shares held: +25.7%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 365
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1956827 CUSIP 00370M103 13F (30d) 287 filings 284 filers Visit website Investor relations