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PRIMECAP MANAGEMENT CO/CA/: UNP position timeline

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

PRIMECAP MANAGEMENT CO/CA/ held 775,740 UNP 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 775,740 shares
    Change vs previous 13F -47,500 shares

    0.12% of the 13F portfolio, value $211,001,280.

    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 823,240 shares
    Change vs previous 13F -132,500 shares

    0.16% of the 13F portfolio, value $199,734,489.

    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 955,740 shares
    Change vs previous 13F -92,400 shares

    0.17% of the 13F portfolio, value $221,081,777.

    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 1,048,140 shares
    Change vs previous 13F -52,226 shares

    0.19% of the 13F portfolio, value $247,748,852.

    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 1,100,366 shares
    Change vs previous 13F -383,314 shares

    0.2% of the 13F portfolio, value $253,172,209.

    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 1,483,680 shares
    Change vs previous 13F -13,600 shares

    0.29% of the 13F portfolio, value $350,504,563.

    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 1,497,280 shares
    Change vs previous 13F -107,730 shares

    0.26% of the 13F portfolio, value $341,439,731.

    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 1,605,010 shares
    Change vs previous 13F not available

    0.29% of the 13F portfolio, value $395,602,865.

    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).