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Disclosery

HARTLINE INVESTMENT CORP/: BRK-A position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of HARTLINE INVESTMENT CORP/ on BRK-A, newest first. How the timeline and the estimate are built.

HARTLINE INVESTMENT CORP/ held 117 BRK-A shares at 2026-06-30 per its 13F-HR filed 2026-07-29.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 117 shares
    Change vs previous 13F -2 shares

    7.63% of the 13F portfolio, value $87,615,450.

    13F-HR 0001754960-26-000662 filed by HARTLINE INVESTMENT CORP/
    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 119 shares
    Change vs previous 13F 0 shares

    9.4% of the 13F portfolio, value $85,458,660.

    13F-HR 0001754960-26-000342 filed by HARTLINE INVESTMENT CORP/
    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 119 shares
    Change vs previous 13F -1 shares

    9.71% of the 13F portfolio, value $89,821,200.

    13F-HR 0001754960-26-000160 filed by HARTLINE INVESTMENT CORP/
    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 120 shares
    Change vs previous 13F -6 shares

    9.39% of the 13F portfolio, value $90,504,000.

    13F-HR 0001754960-25-000721 filed by HARTLINE INVESTMENT CORP/
    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 126 shares
    Change vs previous 13F 0 shares

    10.43% of the 13F portfolio, value $91,828,800.

    13F-HR 0001754960-25-000499 filed by HARTLINE INVESTMENT CORP/
    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 126 shares
    Change vs previous 13F -7 shares

    13.42% of the 13F portfolio, value $100,603,642.

    13F-HR 0001754960-25-000262 filed by HARTLINE INVESTMENT CORP/
    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 133 shares
    Change vs previous 13F 0 shares

    10.39% of the 13F portfolio, value $90,562,360.

    13F-HR 0001754960-25-000081 filed by HARTLINE INVESTMENT CORP/
    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 133 shares
    Change vs previous 13F not available

    11.47% of the 13F portfolio, value $91,926,940.

    13F-HR 0001754960-24-000544 filed by HARTLINE INVESTMENT CORP/
    Filed (acceptance time not in the bulk data set), ingested

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