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BLAIR WILLIAM & CO/IL: MGK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BLAIR WILLIAM & CO/IL on MGK, newest first. How the timeline and the estimate are built.

BLAIR WILLIAM & CO/IL held 106,666 MGK shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 106,666 shares
    Change vs previous 13F +83,463 shares

    0.02% of the 13F portfolio, value $9,377,028.

    13F-HR 0001104659-26-093821 filed by BLAIR WILLIAM & CO/IL
    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 23,203 shares
    Change vs previous 13F -8,771 shares

    0.02% of the 13F portfolio, value $8,525,704.

    13F-HR 0001104659-26-057897 filed by BLAIR WILLIAM & CO/IL
    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 31,974 shares
    Change vs previous 13F +5,337 shares

    0.04% of the 13F portfolio, value $13,197,886.

    13F-HR 0001104659-26-015563 filed by BLAIR WILLIAM & CO/IL
    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 26,637 shares
    Change vs previous 13F -1,935 shares

    0.03% of the 13F portfolio, value $10,719,073.

    13F-HR 0001104659-25-109927 filed by BLAIR WILLIAM & CO/IL
    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 28,572 shares
    Change vs previous 13F +1,802 shares

    0.03% of the 13F portfolio, value $10,462,356.

    13F-HR 0001104659-25-070274 filed by BLAIR WILLIAM & CO/IL
    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 26,770 shares
    Change vs previous 13F -2,500 shares

    0.02% of the 13F portfolio, value $8,268,842.

    13F-HR 0001104659-25-046545 filed by BLAIR WILLIAM & CO/IL
    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 29,270 shares
    Change vs previous 13F +1,713 shares

    0.03% of the 13F portfolio, value $10,051,703.

    13F-HR 0001104659-25-011872 filed by BLAIR WILLIAM & CO/IL
    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 27,557 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $8,872,008.

    13F-HR 0001104659-24-116499 filed by BLAIR WILLIAM & CO/IL
    Filed (acceptance time not in the bulk data set), ingested

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