Sarissa Capital Management LP: AMRN position timeline

Sarissa Capital Management LP held 1,673,395 AMRN shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

1. period ended2026-06-30

   13F 1,673,395 shares

   Change vs previous 13F 0 shares

   15% of the 13F portfolio, value $26,673,916.

   13F-HR 0000899140-26-000879 filed by Sarissa Capital Management LP
   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).

2. period ended2026-03-31

   13F 1,673,395 shares

   Change vs previous 13F 0 shares

   15.35% of the 13F portfolio, value $24,197,292.

   13F-HR 0000899140-26-000574 filed by Sarissa Capital Management LP
   Filed 2026-05-15 (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).

3. period ended2025-12-31

   13F 1,673,395 shares

   Change vs previous 13F +430,868 shares

   10.48% of the 13F portfolio, value $23,352,227.

   13F-HR 0000899140-26-000256 filed by Sarissa Capital Management LP
   Filed 2026-02-17 (acceptance time not in the bulk data set), ingested 2026-10-07 03:01:36 UTC

   Acceptance time not in the bulk data set (spec §4.2).

4. period ended2025-09-30

   13F 1,242,527 shares

   Change vs previous 13F 0 shares

   11.28% of the 13F portfolio, value $20,352,592.

   13F-HR 0000899140-25-001320 filed by Sarissa Capital Management LP
   Filed 2025-11-14 (acceptance time not in the bulk data set), ingested 2026-10-07 03:02:25 UTC

   Acceptance time not in the bulk data set (spec §4.2).

5. period ended2025-06-30

   13F 1,242,527 shares

   Change vs previous 13F not available

   13.05% of the 13F portfolio, value $20,153,788.

   13F-HR 0000899140-25-000986 filed by Sarissa Capital Management LP
   Filed 2025-08-14 (acceptance time not in the bulk data set), ingested 2026-10-07 18:23:11 UTC

   Acceptance time not in the bulk data set (spec §4.2).