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MATTERN CAPITAL MANAGEMENT, LLC: CMCSA position timeline

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

MATTERN CAPITAL MANAGEMENT, LLC held 0 CMCSA shares at 2025-12-31 per its 13F-HR filed 2026-01-29.

the latest 13F is the newest step

  1. period ended2025-12-31
    13F 0 shares
    Change vs previous 13F -234,941 shares

    13F-HR 0001725547-26-000059 filed by MATTERN CAPITAL MANAGEMENT, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-09-30
    13F 234,941 shares
    Change vs previous 13F +13,457 shares

    0.87% of the 13F portfolio, value $7,381,846.

    13F-HR 0001725547-25-004185 filed by MATTERN CAPITAL MANAGEMENT, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-06-30
    13F 221,484 shares
    Change vs previous 13F +7,609 shares

    0.95% of the 13F portfolio, value $7,904,764.

    13F-HR 0001725547-25-003493 filed by MATTERN CAPITAL MANAGEMENT, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-03-31
    13F 213,875 shares
    Change vs previous 13F +7,160 shares

    1% of the 13F portfolio, value $7,891,988.

    13F-HR 0001725547-25-001447 filed by MATTERN CAPITAL MANAGEMENT, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2024-12-31
    13F 206,715 shares
    Change vs previous 13F +13,169 shares

    1.01% of the 13F portfolio, value $7,758,014.

    13F-HR 0001725547-25-000291 filed by MATTERN CAPITAL MANAGEMENT, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2024-09-30
    13F 193,546 shares
    Change vs previous 13F not available

    1.02% of the 13F portfolio, value $8,084,416.

    13F-HR 0001725547-24-005983 filed by MATTERN CAPITAL MANAGEMENT, LLC
    Filed (acceptance time not in the bulk data set), ingested

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