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GRIFFIN ASSET MANAGEMENT, INC.: MGK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of GRIFFIN ASSET MANAGEMENT, INC. on MGK, newest first. How the timeline and the estimate are built.

GRIFFIN ASSET MANAGEMENT, INC. held 26,683 MGK shares at 2026-06-30 per its 13F-HR filed 2026-07-23.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 26,683 shares
    Change vs previous 13F +21,242 shares

    0.25% of the 13F portfolio, value $2,345,702.

    13F-HR 0001941040-26-000445 filed by GRIFFIN ASSET 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 5,441 shares
    Change vs previous 13F -1,655 shares

    0.23% of the 13F portfolio, value $1,999,111.

    13F-HR 0001941040-26-000285 filed by GRIFFIN ASSET 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 7,096 shares
    Change vs previous 13F -762 shares

    0.32% of the 13F portfolio, value $2,928,866.

    13F-HR 0001941040-26-000073 filed by GRIFFIN ASSET 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 7,858 shares
    Change vs previous 13F +574 shares

    0.36% of the 13F portfolio, value $3,162,201.

    13F-HR 0001941040-25-000553 filed by GRIFFIN ASSET 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 7,284 shares
    Change vs previous 13F +3,500 shares

    0.31% of the 13F portfolio, value $2,667,080.

    13F-HR 0001941040-25-000359 filed by GRIFFIN ASSET 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 3,784 shares
    Change vs previous 13F +1,763 shares

    0.14% of the 13F portfolio, value $1,168,812.

    13F-HR 0001941040-25-000211 filed by GRIFFIN ASSET 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 2,021 shares
    Change vs previous 13F not available

    0.08% of the 13F portfolio, value $693,998.

    13F-HR 0001941040-25-000029 filed by GRIFFIN ASSET MANAGEMENT, INC.
    Filed (acceptance time not in the bulk data set), ingested

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