BLAIR WILLIAM & CO/IL: AMLP position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BLAIR WILLIAM & CO/IL on AMLP, newest first. How the timeline and the estimate are built.
BLAIR WILLIAM & CO/IL held 532,049 AMLP shares at 2026-06-30 per its 13F-HR filed 2026-08-11.
the latest 13F is the newest step
- period ended2026-06-3013F 532,049 sharesChange vs previous 13F -2,834 shares
0.07% of the 13F portfolio, value $27,586,759.
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 534,883 sharesChange vs previous 13F +4,293 shares
0.08% of the 13F portfolio, value $28,156,231.
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 530,590 sharesChange vs previous 13F +3,489 shares
0.07% of the 13F portfolio, value $24,948,339.
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 527,101 sharesChange vs previous 13F -4,716 shares
0.07% of the 13F portfolio, value $24,736,832.
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 531,817 sharesChange vs previous 13F +10,001 shares
0.07% of the 13F portfolio, value $25,984,597.
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 521,816 sharesChange vs previous 13F +17,623 shares
0.08% of the 13F portfolio, value $27,103,146.
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 504,193 sharesChange vs previous 13F +10,879 shares
0.07% of the 13F portfolio, value $24,281,950.
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 493,314 sharesChange vs previous 13F not available
0.07% of the 13F portfolio, value $23,249,894.
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).