Mason Investment Advisory Services, Inc.: IWM position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Mason Investment Advisory Services, Inc. on IWM, newest first. How the timeline and the estimate are built.
Mason Investment Advisory Services, Inc. held 758 IWM shares at 2026-06-30 per its 13F-HR filed 2026-08-13.
the latest 13F is the newest step
- period ended2026-06-3013F 758 sharesChange vs previous 13F +758 shares
0.01% of the 13F portfolio, value $227,803.
13F-HR 0001140361-26-032728 filed by Mason Investment Advisory Services, Inc.
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F 0 sharesChange vs previous 13F -1,174 shares
13F-HR 0001140361-26-021278 filed by Mason Investment Advisory Services, Inc.
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
Exited: the 13F for this period no longer lists the position.
- period ended2025-12-3113F 1,174 sharesChange vs previous 13F +3 shares
0.01% of the 13F portfolio, value $289,000.
13F-HR 0001140361-26-004973 filed by Mason Investment Advisory Services, Inc.
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-09-3013F 1,171 sharesChange vs previous 13F not available
0.01% of the 13F portfolio, value $283,456.
13F-HR 0001140361-25-041541 filed by Mason Investment Advisory Services, Inc.
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).