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PRIMECAP MANAGEMENT CO/CA/: AMAT position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of PRIMECAP MANAGEMENT CO/CA/ on AMAT, newest first. How the timeline and the estimate are built.

PRIMECAP MANAGEMENT CO/CA/ held 1,042,926 AMAT 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 1,042,926 shares
    Change vs previous 13F -131,200 shares

    0.45% of the 13F portfolio, value $754,035,498.

    13F-HR 0000763212-26-000028 filed by PRIMECAP MANAGEMENT CO/CA/
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  2. period ended2026-03-31
    13F 1,174,126 shares
    Change vs previous 13F -59,700 shares

    0.32% of the 13F portfolio, value $401,304,524.

    13F-HR 0000763212-26-000016 filed by PRIMECAP MANAGEMENT CO/CA/
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-12-31
    13F 1,233,826 shares
    Change vs previous 13F -350,400 shares

    0.24% of the 13F portfolio, value $317,080,943.

    13F-HR 0000763212-26-000012 filed by PRIMECAP MANAGEMENT CO/CA/
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2025-09-30
    13F 1,584,226 shares
    Change vs previous 13F -165,800 shares

    0.25% of the 13F portfolio, value $324,354,432.

    13F-HR 0000763212-25-000005 filed by PRIMECAP MANAGEMENT CO/CA/
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  5. period ended2025-06-30
    13F 1,750,026 shares
    Change vs previous 13F -704,344 shares

    0.25% of the 13F portfolio, value $320,377,259.

    13F-HR 0001085146-25-004804 filed by PRIMECAP MANAGEMENT CO/CA/
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  6. period ended2025-03-31
    13F 2,454,370 shares
    Change vs previous 13F -141,910 shares

    0.29% of the 13F portfolio, value $356,178,175.

    13F-HR 0001085146-25-002901 filed by PRIMECAP MANAGEMENT CO/CA/
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  7. period ended2024-12-31
    13F 2,596,280 shares
    Change vs previous 13F -146,003 shares

    0.33% of the 13F portfolio, value $422,233,017.

    13F-HR 0001085146-25-000946 filed by PRIMECAP MANAGEMENT CO/CA/
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  8. period ended2024-09-30
    13F 2,742,283 shares
    Change vs previous 13F not available

    0.41% of the 13F portfolio, value $554,078,281.

    13F-HR 0001085146-24-005460 filed by PRIMECAP MANAGEMENT CO/CA/
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).