BLAIR WILLIAM & CO/IL: AMGN position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BLAIR WILLIAM & CO/IL on AMGN, newest first. How the timeline and the estimate are built.
BLAIR WILLIAM & CO/IL held 150,777 AMGN shares at 2026-06-30 per its 13F-HR filed 2026-08-11.
the latest 13F is the newest step
- period ended2026-06-3013F 150,777 sharesChange vs previous 13F -5,221 shares
0.14% of the 13F portfolio, value $54,599,288.
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 155,998 sharesChange vs previous 13F -8,198 shares
0.16% of the 13F portfolio, value $54,887,760.
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 164,196 sharesChange vs previous 13F +1,957 shares
0.14% of the 13F portfolio, value $53,742,847.
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 162,239 sharesChange vs previous 13F -4,654 shares
0.12% of the 13F portfolio, value $45,783,790.
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 166,893 sharesChange vs previous 13F +275 shares
0.13% of the 13F portfolio, value $46,598,314.
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 166,618 sharesChange vs previous 13F -11,978 shares
0.16% of the 13F portfolio, value $51,909,885.
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 178,596 sharesChange vs previous 13F -21,709 shares
0.14% of the 13F portfolio, value $46,549,227.
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 200,305 sharesChange vs previous 13F not available
0.19% of the 13F portfolio, value $64,540,195.
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).