Sienna Gestion: O position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Sienna Gestion on O, newest first. How the timeline and the estimate are built.

Sienna Gestion held 144,412 O 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 144,412 shares
Change vs previous 13F -11,442 shares
0.54% of the 13F portfolio, value $9,205,349.
13F-HR 0000945621-26-001042 filed by Sienna Gestion
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 155,854 shares
Change vs previous 13F not available
0.63% of the 13F portfolio, value $9,600,711.
13F-HR 0000945621-26-000712 filed by Sienna Gestion
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).