BLAIR WILLIAM & CO/IL: RSP position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BLAIR WILLIAM & CO/IL on RSP, newest first. How the timeline and the estimate are built.
BLAIR WILLIAM & CO/IL held 1,982,392 RSP shares at 2026-06-30 per its 13F-HR filed 2026-08-11.
the latest 13F is the newest step
- period ended2026-06-3013F 1,982,392 sharesChange vs previous 13F +301,788 shares
1.1% of the 13F portfolio, value $421,793,485.
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 1,680,604 sharesChange vs previous 13F +1,130,618 shares
0.92% of the 13F portfolio, value $322,541,611.
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 549,986 sharesChange vs previous 13F +139,587 shares
0.28% of the 13F portfolio, value $105,355,332.
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 410,399 sharesChange vs previous 13F +22,529 shares
0.21% of the 13F portfolio, value $77,852,644.
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 387,870 sharesChange vs previous 13F +5,078 shares
0.2% of the 13F portfolio, value $70,491,531.
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 382,792 sharesChange vs previous 13F +15,700 shares
0.2% of the 13F portfolio, value $66,311,032.
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 367,092 sharesChange vs previous 13F +96,323 shares
0.19% of the 13F portfolio, value $64,325,491.
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 270,769 sharesChange vs previous 13F not available
0.14% of the 13F portfolio, value $48,510,997.
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).