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PRIMECAP MANAGEMENT CO/CA/: LUV position timeline

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

PRIMECAP MANAGEMENT CO/CA/ held 48,797,725 LUV shares at 2026-06-30 per its 13F-HR filed 2026-08-14, and reported 49,003,285 shares, 10.02%, in a 13G/A filed 2026-10-05.

Estimated current stake: 49,003,285 shares, 10.02% of the class

Estimated from 13G/A of 2026-10-05. As of 2026-09-30, 13G/A 0001085146-26-000796.

Shares are the reporting group's aggregate and may include entities that do not file a 13F.

Percent of portfolio stays on the 13F for 2026-06-30.

  1. event date2026-09-30
    13G/A 49,003,285 shares
    Share basis changed not comparable

    10.02% of the class. Different basis (group aggregate from 13G/A).

    13G/A 0001085146-26-000796 filed by PRIMECAP MANAGEMENT CO/CA/
    Accepted , ingested

    A 13D/G states the aggregate of its reporting persons, which may include entities that do not file a 13F.

  2. period ended2026-06-30
    13F 48,797,725 shares
    Change vs previous 13F +1,728,230 shares

    1.48% of the 13F portfolio, value $2,509,179,019.

    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).

  3. period ended2026-03-31
    13F 47,069,495 shares
    Change vs previous 13F -322,600 shares

    1.39% of the 13F portfolio, value $1,768,400,930.

    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).

  4. period ended2025-12-31
    13F 47,392,095 shares
    Change vs previous 13F -604,018 shares

    1.48% of the 13F portfolio, value $1,958,715,287.

    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).

  5. period ended2025-09-30
    13F 47,996,113 shares
    Change vs previous 13F -848,030 shares

    1.17% of the 13F portfolio, value $1,531,555,968.

    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).

  6. period ended2025-06-30
    13F 48,844,143 shares
    Change vs previous 13F -844,165 shares

    1.26% of the 13F portfolio, value $1,584,504,001.

    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).

  7. period ended2025-03-31
    13F 49,688,308 shares
    Change vs previous 13F +788,255 shares

    1.38% of the 13F portfolio, value $1,668,533,383.

    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).

  8. period ended2024-12-31
    13F 48,900,053 shares
    Change vs previous 13F -769,471 shares

    1.27% of the 13F portfolio, value $1,644,019,782.

    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).

  9. period ended2024-09-30
    13F 49,669,524 shares
    Change vs previous 13F not available

    1.08% of the 13F portfolio, value $1,471,708,027.

    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).