Avidity Partners Management LP: RGEN position timeline

Avidity Partners Management LP held 77,800 RGEN 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 77,800 shares

   Change vs previous 13F 0 shares

   1.7% of the 13F portfolio, value $10,615,032.

   13F-HR 0001791827-26-000005 filed by Avidity Partners 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/A 77,800 shares

   Change vs previous 13F +27,500 shares

   1.86% of the 13F portfolio, value $9,166,396.

   13F-HR/A 0001791827-26-000004 filed by Avidity Partners Management LP
   Filed 2026-05-28 (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 50,300 shares

   Change vs previous 13F +27,000 shares

   2.38% of the 13F portfolio, value $8,242,158.

   13F-HR 0001791827-26-000002 filed by Avidity Partners Management LP
   Filed 2026-02-13 (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 23,300 shares

   Change vs previous 13F -83,200 shares

   0.71% of the 13F portfolio, value $3,114,511.

   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).

5. period ended2025-06-30

   13F 106,500 shares

   Change vs previous 13F not available

   2.66% of the 13F portfolio, value $13,246,470.

   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).