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PRIMECAP MANAGEMENT CO/CA/: ALK position timeline

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

PRIMECAP MANAGEMENT CO/CA/ held 3,227,329 ALK 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 3,227,329 shares
    Change vs previous 13F -23,000 shares

    0.1% of the 13F portfolio, value $168,466,626.

    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 3,250,329 shares
    Change vs previous 13F -10,501 shares

    0.09% of the 13F portfolio, value $119,547,137.

    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 3,260,830 shares
    Change vs previous 13F -198,579 shares

    0.12% of the 13F portfolio, value $164,019,749.

    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 3,459,409 shares
    Change vs previous 13F -175,011 shares

    0.13% of the 13F portfolio, value $172,209,430.

    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 3,634,420 shares
    Change vs previous 13F -168,330 shares

    0.14% of the 13F portfolio, value $179,831,102.

    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 3,802,750 shares
    Change vs previous 13F -18,700 shares

    0.15% of the 13F portfolio, value $187,171,355.

    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 3,821,450 shares
    Change vs previous 13F -30,897 shares

    0.19% of the 13F portfolio, value $247,438,888.

    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 3,852,347 shares
    Change vs previous 13F not available

    0.13% of the 13F portfolio, value $174,164,608.

    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).