PERCEPTIVE ADVISORS LLC: IONS position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of PERCEPTIVE ADVISORS LLC on IONS, newest first. How the timeline and the estimate are built.

PERCEPTIVE ADVISORS LLC held 566,000 IONS shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

period ended2026-06-30
13F 566,000 shares
Change vs previous 13F +62,000 shares
0.7% of the 13F portfolio, value $44,878,140.
13F-HR 0001012975-26-000777 filed by PERCEPTIVE ADVISORS LLC
Filed 2026-08-14 (acceptance time not in the bulk data set), ingested 2026-10-06 09:57:27 UTC
Acceptance time not in the bulk data set (spec §4.2).
period ended2026-03-31
13F/A 504,000 shares
Change vs previous 13F not available
0.75% of the 13F portfolio, value $37,845,360.
13F-HR/A 0001012975-26-000499 filed by PERCEPTIVE ADVISORS LLC
Filed 2026-05-29 (acceptance time not in the bulk data set), ingested 2026-10-06 09:58:43 UTC
Acceptance time not in the bulk data set (spec §4.2).