Prospect Hill Management, LLC: ARM position timeline

Prospect Hill Management, LLC held 0 ARM shares at 2025-09-30 per its 13F-HR filed 2025-11-07.

the latest 13F is the newest step

1. period ended2025-09-30

   13F 0 shares

   Change vs previous 13F -6,214 shares

   13F-HR 0001837320-25-000009 filed by Prospect Hill Management, LLC
   Filed 2025-11-07 (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 6,214 shares

   Change vs previous 13F -125 shares

   0.52% of the 13F portfolio, value $1,005,052.

   13F-HR 0001837320-25-000008 filed by Prospect Hill Management, LLC
   Filed 2025-08-11 (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 6,339 shares

   Change vs previous 13F +1,738 shares

   0.35% of the 13F portfolio, value $676,942.

   13F-HR 0001837320-25-000007 filed by Prospect Hill Management, LLC
   Filed 2025-05-05 (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 4,601 shares

   Change vs previous 13F +6 shares

   0.25% of the 13F portfolio, value $567,579.

   13F-HR 0001837320-25-000001 filed by Prospect Hill Management, LLC
   Filed 2025-02-11 (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 4,595 shares

   Change vs previous 13F not available

   0.33% of the 13F portfolio, value $657,131.

   13F-HR 0001837320-24-000004 filed by Prospect Hill Management, LLC
   Filed 2024-11-05 (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).