MARSHALL WACE, LLP: SPYM position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of MARSHALL WACE, LLP on SPYM, newest first. How the timeline and the estimate are built.

MARSHALL WACE, LLP held 46,869,324 SPYM shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

period ended2026-06-30
13F 46,869,324 shares
Change vs previous 13F -2,780,922 shares
3.48% of the 13F portfolio, value $4,118,876,193.
13F-HR 0001318757-26-000010 filed by MARSHALL WACE, LLP
Filed 2026-08-13 (acceptance time not in the bulk data set), ingested 2026-10-06 09:57:27 UTC
Acceptance time not in the bulk data set (spec §4.2).
period ended2026-03-31
13F 49,650,246 shares
Change vs previous 13F +49,650,246 shares
4.07% of the 13F portfolio, value $3,800,229,829.
13F-HR 0001318757-26-000005 filed by MARSHALL WACE, LLP
Filed 2026-05-15 (acceptance time not in the bulk data set), ingested 2026-10-06 09:58:43 UTC
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-12-31
13F 0 shares
Change vs previous 13F -1,178,666 shares
13F-HR 0001318757-26-000003 filed by MARSHALL WACE, LLP
Filed 2026-02-13 (acceptance time not in the bulk data set), ingested 2026-10-07 03:01:36 UTC
Acceptance time not in the bulk data set (spec §4.2).
Exited: the 13F for this period no longer lists the position.
period ended2025-09-30
13F 1,178,666 shares
Change vs previous 13F +1,178,666 shares
0.1% of the 13F portfolio, value $92,336,694.
13F-HR 0001318757-25-000046 filed by MARSHALL WACE, LLP
Filed 2025-11-13 (acceptance time not in the bulk data set), ingested 2026-10-07 03:02:25 UTC
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-09-30
13F 0 shares
Change vs previous 13F not available
13F-HR 0001318757-24-000018 filed by MARSHALL WACE, LLP
Filed 2024-11-14 (acceptance time not in the bulk data set), ingested 2026-10-07 18:26:56 UTC
Acceptance time not in the bulk data set (spec §4.2).
Exited: the 13F for this period no longer lists the position.