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Disclosery

Columbia Asset Management: BLK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Columbia Asset Management on BLK, newest first. How the timeline and the estimate are built.

Columbia Asset Management held 750 BLK shares at 2026-06-30 per its 13F-HR filed 2026-07-21.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 750 shares
    Change vs previous 13F -36 shares

    0.13% of the 13F portfolio, value $721,170.

    13F-HR 0002085853-26-000792 filed by Columbia Asset Management
    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 786 shares
    Change vs previous 13F -158 shares

    0.14% of the 13F portfolio, value $755,904.

    13F-HR 0002085853-26-000430 filed by Columbia Asset Management
    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 944 shares
    Change vs previous 13F -35 shares

    0.18% of the 13F portfolio, value $1,010,401.

    13F-HR 0002085853-26-000122 filed by Columbia Asset Management
    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 979 shares
    Change vs previous 13F -45 shares

    0.21% of the 13F portfolio, value $1,141,387.

    13F-HR 0002085853-25-000221 filed by Columbia Asset Management
    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 1,024 shares
    Change vs previous 13F -113 shares

    0.21% of the 13F portfolio, value $1,074,432.

    13F-HR 0001667731-25-000872 filed by Columbia Asset Management
    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 1,137 shares
    Change vs previous 13F not available

    0.22% of the 13F portfolio, value $1,076,148.

    13F-HR 0001667731-25-000412 filed by Columbia Asset Management
    Filed (acceptance time not in the bulk data set), ingested

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