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PRIMECAP MANAGEMENT CO/CA/: MAR position timeline

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

PRIMECAP MANAGEMENT CO/CA/ held 251,300 MAR 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 251,300 shares
    Change vs previous 13F -7,860 shares

    0.06% of the 13F portfolio, value $93,129,267.

    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 259,160 shares
    Change vs previous 13F -5,200 shares

    0.07% of the 13F portfolio, value $84,763,461.

    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 264,360 shares
    Change vs previous 13F -9,900 shares

    0.06% of the 13F portfolio, value $82,015,046.

    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 274,260 shares
    Change vs previous 13F -4,760 shares

    0.05% of the 13F portfolio, value $71,428,274.

    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 279,020 shares
    Change vs previous 13F -8,200 shares

    0.06% of the 13F portfolio, value $76,231,054.

    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 287,220 shares
    Change vs previous 13F -4,920 shares

    0.06% of the 13F portfolio, value $68,415,804.

    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 292,140 shares
    Change vs previous 13F -660 shares

    0.06% of the 13F portfolio, value $81,489,532.

    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 292,800 shares
    Change vs previous 13F not available

    0.05% of the 13F portfolio, value $72,790,080.

    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).