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HARTFORD INVESTMENT MANAGEMENT CO: BRK-B position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of HARTFORD INVESTMENT MANAGEMENT CO on BRK-B, newest first. How the timeline and the estimate are built.

HARTFORD INVESTMENT MANAGEMENT CO held 101,373 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-07-15.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 101,373 shares
    Change vs previous 13F -3,140 shares

    1.44% of the 13F portfolio, value $50,726,035.

    13F-HR 0000922439-26-000005 filed by HARTFORD INVESTMENT MANAGEMENT CO
    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 104,513 shares
    Change vs previous 13F -1,431 shares

    1.59% of the 13F portfolio, value $50,082,630.

    13F-HR 0000922439-26-000004 filed by HARTFORD INVESTMENT MANAGEMENT CO
    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 105,944 shares
    Change vs previous 13F -1,501 shares

    1.59% of the 13F portfolio, value $53,252,752.

    13F-HR 0000922439-26-000002 filed by HARTFORD INVESTMENT MANAGEMENT CO
    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 107,445 shares
    Change vs previous 13F -3,176 shares

    1.63% of the 13F portfolio, value $54,016,899.

    13F-HR 0000922439-25-000013 filed by HARTFORD INVESTMENT MANAGEMENT CO
    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 110,621 shares
    Change vs previous 13F -1,233 shares

    1.71% of the 13F portfolio, value $53,736,363.

    13F-HR 0000922439-25-000011 filed by HARTFORD INVESTMENT MANAGEMENT CO
    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 111,854 shares
    Change vs previous 13F -1,404 shares

    2.07% of the 13F portfolio, value $59,571,203.

    13F-HR 0000922439-25-000009 filed by HARTFORD INVESTMENT MANAGEMENT CO
    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 113,258 shares
    Change vs previous 13F -2,033 shares

    1.68% of the 13F portfolio, value $51,337,586.

    13F-HR 0000922439-25-000003 filed by HARTFORD INVESTMENT MANAGEMENT CO
    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 115,291 shares
    Change vs previous 13F not available

    1.75% of the 13F portfolio, value $53,063,836.

    13F-HR 0000922439-24-000012 filed by HARTFORD INVESTMENT MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).