Avidity Partners Management LP: AXSM position timeline

Avidity Partners Management LP held 0 AXSM shares at 2025-09-30 per its 13F-HR filed 2025-11-14.

the latest 13F is the newest step

1. period ended2025-09-30

   13F 0 shares

   Change vs previous 13F -94,500 shares

   13F-HR 0001791827-25-000008 filed by Avidity Partners 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).

   Exited: the 13F for this period no longer lists the position.

2. period ended2025-06-30

   13F 94,500 shares

   Change vs previous 13F +17,500 shares

   1.98% of the 13F portfolio, value $9,864,855.

   13F-HR 0001791827-25-000007 filed by Avidity Partners 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).

3. period ended2025-03-31

   13F 77,000 shares

   Change vs previous 13F -111,000 shares

   1.85% of the 13F portfolio, value $8,980,510.

   13F-HR 0001791827-25-000005 filed by Avidity Partners Management LP
   Filed 2025-05-15 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:06 UTC

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

4. period ended2024-12-31

   13F 188,000 shares

   Change vs previous 13F -108,100 shares

   1.59% of the 13F portfolio, value $15,906,680.

   13F-HR 0001791827-25-000002 filed by Avidity Partners Management LP
   Filed 2025-02-14 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:55 UTC

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

5. period ended2024-09-30

   13F 296,100 shares

   Change vs previous 13F not available

   1.36% of the 13F portfolio, value $26,610,507.

   13F-HR 0001791827-24-000011 filed by Avidity Partners Management LP
   Filed 2024-11-14 (acceptance time not in the bulk data set), ingested 2026-10-07 18:26:56 UTC

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