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
- period ended2026-06-3013F 106,666 sharesChange 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), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F 23,203 sharesChange 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), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 31,974 sharesChange 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), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-09-3013F 26,637 sharesChange 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), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-06-3013F 28,572 sharesChange 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), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-03-3113F 26,770 sharesChange 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), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-12-3113F 29,270 sharesChange 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), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-09-3013F 27,557 sharesChange 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), ingestedAcceptance time not in the bulk data set (spec §4.2).