PRIMECAP MANAGEMENT CO/CA/: AMD position timeline

PRIMECAP MANAGEMENT CO/CA/ held 1,047,730 AMD 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 1,047,730 shares

   Change vs previous 13F -1,790 shares

   0.36% of the 13F portfolio, value $608,636,835.

   13F-HR 0000763212-26-000028 filed by PRIMECAP MANAGEMENT CO/CA/
   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 1,049,520 shares

   Change vs previous 13F +173,821 shares

   0.17% of the 13F portfolio, value $213,503,855.

   13F-HR 0000763212-26-000016 filed by PRIMECAP MANAGEMENT CO/CA/
   Filed 2026-05-11 (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 875,699 shares

   Change vs previous 13F +427,689 shares

   0.14% of the 13F portfolio, value $187,539,698.

   13F-HR 0000763212-26-000012 filed by PRIMECAP MANAGEMENT CO/CA/
   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 448,010 shares

   Change vs previous 13F +227,310 shares

   0.06% of the 13F portfolio, value $72,483,539.

   13F-HR 0000763212-25-000005 filed by PRIMECAP MANAGEMENT CO/CA/
   Filed 2025-11-12 (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 220,700 shares

   Change vs previous 13F not available

   0.02% of the 13F portfolio, value $31,317,330.

   13F-HR 0001085146-25-004804 filed by PRIMECAP MANAGEMENT CO/CA/
   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).