ABVXABIVAX Société Anonyme

$88.10+7.0% 1Y

Who owns ABVX

301 institutions reported holding ABVX for 2026Q2, together 75% of the company, more than the 252 a quarter earlier.

301

Institutions reporting a position · as of 2026Q2 · up from 252 the quarter before

Shares held by institutions
54.9M

Shares held by institutions · 75% of the company · long US equity positions only, as reported on Form 13F

Reported value
$7.18B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
23%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
11
New positions
90
Positions exited
43
Added to
95
Reduced
95
Top 10 holdersof the company
34%
Shares sold shortsettled Sep 15, 2026
6.9M
Short interestof shares outstanding
9.4%
Days to coverat the average daily volume
6.2
Change in the short positionsince the Aug 31, 2026 count
−1.5%
Institutional ownership by quarter, 2023Q4 to 2026Q2
QuarterFilersSharesReported value
2026Q230154.9M$7.18B
2026Q125250.0M$5.53B
2025Q424656.3M$7.61B
2025Q316552.0M$4.41B
2025Q24330.7M$235M
2025Q14631.8M$199M
2024Q44829.9M$219M
2024Q34027.4M$313M
2024Q23828.1M$372M
2024Q13623.4M$334M
2023Q43021.3M$228M
Largest reported holders, 2026Q2
HolderShares% of companyValue
TCG Crossover Management, LLC6.0M8.2%$801M
Darwin Global Management, Ltd.3.6M5.0%$483M
Helikon Investments Ltd2.8M3.8%$371M
Vestal Point Capital, LP2.3M3.2%$313M
Jupiter Topco LLC1.9M2.6%$255M
UBS Group AG1.8M2.5%$246M
ADAR1 Capital Management, LLC1.8M2.5%$240M
Caligan Partners LP1.6M2.1%$208M
CITADEL ADVISORS LLC1.4M2.0%$192M
MORGAN STANLEY1.4M2.0%$191M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 20266.9M9.4%6.2
Aug 31, 20267.0M9.5%8.0
Aug 14, 20266.0M8.2%7.8
Jul 31, 20265.2M7.1%5.0
Jul 15, 20264.0M5.5%2.4
Jun 30, 20264.3M5.9%1.4
Jun 15, 20264.9M6.7%1.2
May 29, 20263.1M4.2%2.5
May 15, 20262.5M3.4%3.0
Apr 30, 20262.5M3.5%3.1
Apr 15, 20262.6M3.5%3.0
Mar 31, 20263.3M4.5%2.7

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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