BLAIR WILLIAM & CO/IL: PFE position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BLAIR WILLIAM & CO/IL on PFE, newest first. How the timeline and the estimate are built.
BLAIR WILLIAM & CO/IL held 1,406,138 PFE shares at 2026-06-30 per its 13F-HR filed 2026-08-11.
the latest 13F is the newest step
- period ended2026-06-3013F 1,406,138 sharesChange vs previous 13F +36,041 shares
0.09% of the 13F portfolio, value $33,859,808.
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 1,370,097 sharesChange vs previous 13F -12,572 shares
0.11% of the 13F portfolio, value $38,472,334.
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 1,382,669 sharesChange vs previous 13F -38,344 shares
0.09% of the 13F portfolio, value $34,428,457.
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 1,421,013 sharesChange vs previous 13F -437,039 shares
0.1% of the 13F portfolio, value $36,207,421.
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 1,858,052 sharesChange vs previous 13F -432,146 shares
0.13% of the 13F portfolio, value $45,039,190.
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 2,290,198 sharesChange vs previous 13F +20,179 shares
0.18% of the 13F portfolio, value $58,033,612.
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 2,270,019 sharesChange vs previous 13F -192,304 shares
0.18% of the 13F portfolio, value $60,223,599.
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 2,462,323 sharesChange vs previous 13F not available
0.21% of the 13F portfolio, value $71,259,631.
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).