BLAIR WILLIAM & CO/IL: AIZ position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BLAIR WILLIAM & CO/IL on AIZ, newest first. How the timeline and the estimate are built.
BLAIR WILLIAM & CO/IL held 2,296 AIZ shares at 2026-06-30 per its 13F-HR filed 2026-08-11.
the latest 13F is the newest step
- period ended2026-06-3013F 2,296 sharesChange vs previous 13F -54 shares
<0.01% of the 13F portfolio, value $616,636.
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 2,350 sharesChange vs previous 13F -346 shares
<0.01% of the 13F portfolio, value $511,932.
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 2,696 sharesChange vs previous 13F -530 shares
<0.01% of the 13F portfolio, value $649,266.
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 3,226 sharesChange vs previous 13F -425 shares
<0.01% of the 13F portfolio, value $698,783.
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 3,651 sharesChange vs previous 13F -503 shares
<0.01% of the 13F portfolio, value $721,066.
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 4,154 sharesChange vs previous 13F -33 shares
<0.01% of the 13F portfolio, value $871,265.
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 4,187 sharesChange vs previous 13F -120 shares
<0.01% of the 13F portfolio, value $892,802.
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 4,307 sharesChange vs previous 13F not available
<0.01% of the 13F portfolio, value $856,434.
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).