BLAIR WILLIAM & CO/IL: AR position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BLAIR WILLIAM & CO/IL on AR, newest first. How the timeline and the estimate are built.
BLAIR WILLIAM & CO/IL held 29,332 AR shares at 2026-06-30 per its 13F-HR filed 2026-08-11.
the latest 13F is the newest step
- period ended2026-06-3013F 29,332 sharesChange vs previous 13F +10,312 shares
<0.01% of the 13F portfolio, value $1,030,721.
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 19,020 sharesChange vs previous 13F +19,020 shares
<0.01% of the 13F portfolio, value $807,202.
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 ended2025-09-3013F 0 sharesChange vs previous 13F -46,587 shares
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).
Exited: the 13F for this period no longer lists the position.
- period ended2025-06-3013F 46,587 sharesChange vs previous 13F +6,731 shares
0.01% of the 13F portfolio, value $1,876,518.
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 39,856 sharesChange vs previous 13F +22,705 shares
<0.01% of the 13F portfolio, value $1,611,770.
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 17,151 sharesChange vs previous 13F not available
<0.01% of the 13F portfolio, value $601,137.
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).