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INKWELL CAPITAL LLC: BRK-B position timeline

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

INKWELL CAPITAL LLC held 13,942 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-03.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 13,942 shares
    Change vs previous 13F -7 shares

    7.25% of the 13F portfolio, value $6,976,437.

    13F-HR 0002050138-26-000003 filed by INKWELL CAPITAL LLC
    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 13,949 shares
    Change vs previous 13F -160 shares

    6.81% of the 13F portfolio, value $6,684,361.

    13F-HR 0002050138-26-000002 filed by INKWELL CAPITAL LLC
    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 14,109 shares
    Change vs previous 13F -149 shares

    7.2% of the 13F portfolio, value $7,091,889.

    13F-HR 0002050138-26-000001 filed by INKWELL CAPITAL LLC
    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 14,258 shares
    Change vs previous 13F -167 shares

    7.31% of the 13F portfolio, value $7,168,067.

    13F-HR 0002050138-25-000006 filed by INKWELL CAPITAL LLC
    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 14,425 shares
    Change vs previous 13F -129 shares

    7.5% of the 13F portfolio, value $7,007,232.

    13F-HR 0002050138-25-000004 filed by INKWELL CAPITAL LLC
    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 14,554 shares
    Change vs previous 13F -2,394 shares

    8.47% of the 13F portfolio, value $7,751,169.

    13F-HR 0002050138-25-000003 filed by INKWELL CAPITAL LLC
    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 16,948 shares
    Change vs previous 13F not available

    8.21% of the 13F portfolio, value $7,682,189.

    13F-HR 0002050138-25-000002 filed by INKWELL CAPITAL LLC
    Filed (acceptance time not in the bulk data set), ingested

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