Janney Montgomery Scott LLC: AMPX position timeline

Janney Montgomery Scott LLC held 150,646 AMPX shares at 2026-06-30 per its 13F-HR filed 2026-08-05.

the latest 13F is the newest step

1. period ended2026-06-30

   13F 150,646 shares

   Change vs previous 13F +5,400 shares

   <0.01% of the 13F portfolio, value $2,088,000.

   13F-HR 0001329948-26-000006 filed by Janney Montgomery Scott LLC
   Filed 2026-08-05 (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 145,246 shares

   Change vs previous 13F -23,234 shares

   0.01% of the 13F portfolio, value $2,449,000.

   13F-HR 0001329948-26-000004 filed by Janney Montgomery Scott LLC
   Filed 2026-04-22 (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 168,480 shares

   Change vs previous 13F -114,980 shares

   <0.01% of the 13F portfolio, value $1,329,000.

   13F-HR 0001329948-26-000001 filed by Janney Montgomery Scott LLC
   Filed 2026-02-11 (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 283,460 shares

   Change vs previous 13F +267,467 shares

   0.01% of the 13F portfolio, value $2,982,000.

   13F-HR 0001329948-25-000015 filed by Janney Montgomery Scott LLC
   Filed 2025-10-27 (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 15,993 shares

   Change vs previous 13F not available

   <0.01% of the 13F portfolio, value $67,000.

   13F-HR 0001329948-25-000008 filed by Janney Montgomery Scott LLC
   Filed 2025-07-17 (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).