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Blume Capital Management, Inc.: CMCSA position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Blume Capital Management, Inc. on CMCSA, newest first. How the timeline and the estimate are built.

Blume Capital Management, Inc. held 402,405 CMCSA shares at 2026-06-30 per its 13F-HR filed 2026-07-27.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 402,405 shares
    Change vs previous 13F +42,665 shares

    1.46% of the 13F portfolio, value $9,879,043.

    13F-HR 0001587192-26-000003 filed by Blume Capital Management, Inc.
    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 359,740 shares
    Change vs previous 13F -391 shares

    1.76% of the 13F portfolio, value $10,328,136.

    13F-HR 0001587192-26-000002 filed by Blume Capital Management, Inc.
    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 360,131 shares
    Change vs previous 13F +29,786 shares

    1.98% of the 13F portfolio, value $10,764,316.

    13F-HR 0001587192-26-000001 filed by Blume Capital Management, Inc.
    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 330,345 shares
    Change vs previous 13F +33,480 shares

    2% of the 13F portfolio, value $10,379,440.

    13F-HR 0001587192-25-000008 filed by Blume Capital Management, Inc.
    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 296,865 shares
    Change vs previous 13F +31,268 shares

    2.16% of the 13F portfolio, value $10,595,112.

    13F-HR 0001587192-25-000006 filed by Blume Capital Management, Inc.
    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 265,597 shares
    Change vs previous 13F +28,278 shares

    2.19% of the 13F portfolio, value $9,800,530.

    13F-HR 0001587192-25-000002 filed by Blume Capital Management, Inc.
    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 237,319 shares
    Change vs previous 13F +3,025 shares

    2% of the 13F portfolio, value $8,906,583.

    13F-HR 0001587192-25-000001 filed by Blume Capital Management, Inc.
    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 234,294 shares
    Change vs previous 13F not available

    2.21% of the 13F portfolio, value $9,786,461.

    13F-HR 0001587192-24-000009 filed by Blume Capital Management, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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