GATEWAY INVESTMENT ADVISERS LLC: AMKR position timeline

GATEWAY INVESTMENT ADVISERS LLC held 4,735 AMKR shares at 2026-09-30 per its 13F-HR filed 2026-10-13.

the latest 13F is the newest step

1. period ended2026-09-30

   13F 4,735 shares

   Change vs previous 13F -3,433 shares

   <0.01% of the 13F portfolio, value $248,019.

   13F-HR 0001114618-26-000006 filed by GATEWAY INVESTMENT ADVISERS LLC
   Accepted 2026-10-13 14:05:22 UTC, ingested 2026-10-13 14:06:13 UTC

2. period ended2026-06-30

   13F 8,168 shares

   Change vs previous 13F +1,708 shares

   0.01% of the 13F portfolio, value $704,327.

   13F-HR 0001114618-26-000003 filed by GATEWAY INVESTMENT ADVISERS LLC
   Filed 2026-07-20 (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).

3. period ended2026-03-31

   13F 6,460 shares

   Change vs previous 13F -615 shares

   <0.01% of the 13F portfolio, value $290,894.

   13F-HR 0001114618-26-000002 filed by GATEWAY INVESTMENT ADVISERS LLC
   Filed 2026-04-13 (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).

4. period ended2025-12-31

   13F 7,075 shares

   Change vs previous 13F not available

   <0.01% of the 13F portfolio, value $279,321.

   13F-HR 0001114618-26-000001 filed by GATEWAY INVESTMENT ADVISERS LLC
   Filed 2026-02-03 (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).