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PRIMECAP MANAGEMENT CO/CA/: MXL position timeline

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

PRIMECAP MANAGEMENT CO/CA/ held 164,380 MXL 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 164,380 shares
    Change vs previous 13F -10,030 shares

    0.01% of the 13F portfolio, value $21,045,571.

    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 174,410 shares
    Change vs previous 13F -68,200 shares

    <0.01% of the 13F portfolio, value $3,032,990.

    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 242,610 shares
    Change vs previous 13F -518,430 shares

    <0.01% of the 13F portfolio, value $4,228,692.

    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 761,040 shares
    Change vs previous 13F -427,758 shares

    0.01% of the 13F portfolio, value $12,237,524.

    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 1,188,798 shares
    Change vs previous 13F -493,082 shares

    0.01% of the 13F portfolio, value $16,892,819.

    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 1,681,880 shares
    Change vs previous 13F -223,000 shares

    0.02% of the 13F portfolio, value $18,265,217.

    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 1,904,880 shares
    Change vs previous 13F -166,290 shares

    0.03% of the 13F portfolio, value $37,678,526.

    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 2,071,170 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $29,990,542.

    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).