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GARDNER RUSSO & QUINN LLC: MKL position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of GARDNER RUSSO & QUINN LLC on MKL, newest first. How the timeline and the estimate are built.

GARDNER RUSSO & QUINN LLC held 4,265 MKL shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 4,265 shares
    Change vs previous 13F -689 shares

    0.09% of the 13F portfolio, value $8,329,588.

    13F-HR 0000860643-26-000005 filed by GARDNER RUSSO & QUINN 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 4,954 shares
    Change vs previous 13F -1,325 shares

    0.11% of the 13F portfolio, value $9,482,303.

    13F-HR 0000860643-26-000003 filed by GARDNER RUSSO & QUINN 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 6,279 shares
    Change vs previous 13F -1,374 shares

    0.15% of the 13F portfolio, value $13,497,652.

    13F-HR 0000860643-26-000001 filed by GARDNER RUSSO & QUINN 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 7,653 shares
    Change vs previous 13F -490 shares

    0.16% of the 13F portfolio, value $14,627,638.

    13F-HR 0000860643-25-000007 filed by GARDNER RUSSO & QUINN 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 8,143 shares
    Change vs previous 13F -133 shares

    0.17% of the 13F portfolio, value $16,264,502.

    13F-HR 0000860643-25-000004 filed by GARDNER RUSSO & QUINN 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 8,276 shares
    Change vs previous 13F -345 shares

    0.17% of the 13F portfolio, value $15,472,892.

    13F-HR 0000860643-25-000003 filed by GARDNER RUSSO & QUINN 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 8,621 shares
    Change vs previous 13F -395 shares

    0.17% of the 13F portfolio, value $14,881,829.

    13F-HR 0000860643-25-000001 filed by GARDNER RUSSO & QUINN LLC
    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 9,016 shares
    Change vs previous 13F not available

    0.15% of the 13F portfolio, value $14,142,317.

    13F-HR 0000860643-24-000007 filed by GARDNER RUSSO & QUINN LLC
    Filed (acceptance time not in the bulk data set), ingested

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