SEC 13F Intelligence

Octagon Capital Advisors LP / ABVX

Octagon Capital Advisors LP’s Abivax SA Position

Does Octagon Capital Advisors LP own Abivax SA (ABVX)? Yes — 677.0K shares worth $75M (+8.34% of its 13F portfolio) as of Q1 2026, down from 756.0K shares the prior filed quarter.

Position Value
$75M
Q1 2026
Shares
677.0K
% of Portfolio
+8.34%
Quarters Held
5
currently held

Position History ABVX

Reported value by quarter
Q1 ’25: $8MQ1 ’25Q2 ’25: $10MQ2 ’25Q3 ’25: $112MQ3 ’25Q4 ’25: $102MQ4 ’25Q1 ’26: $75MQ1 ’26filingsflow.com
QuarterSharesValue% of Portfolio
Q1 2026677.0K$75M+8.34%
Q4 2025756.0K$102M+12.38%
Q3 20251.32M$112M+17.05%
Q2 20251.27M$10M+2.13%
Q1 20251.23M$8M+1.49%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Octagon Capital Advisors LP’s full portfolio or all institutional holders of ABVX.