OSTRUM ASSET MANAGEMENT: MAS position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of OSTRUM ASSET MANAGEMENT on MAS, newest first. How the timeline and the estimate are built.
OSTRUM ASSET MANAGEMENT held 4,923 MAS shares at 2026-06-30 per its 13F-HR filed 2026-08-13.
the latest 13F is the newest step
- period ended2026-06-3013F 4,923 sharesChange vs previous 13F -18,956 shares
0.02% of the 13F portfolio, value $400,585.
13F-HR 0001104659-26-095882 filed by OSTRUM ASSET MANAGEMENT
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F 23,879 sharesChange vs previous 13F +3,130 shares
0.08% of the 13F portfolio, value $1,441,575.
13F-HR 0001104659-26-061164 filed by OSTRUM ASSET MANAGEMENT
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 20,749 sharesChange vs previous 13F +889 shares
0.06% of the 13F portfolio, value $1,316,732.
13F-HR 0001104659-26-015183 filed by OSTRUM ASSET MANAGEMENT
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-09-3013F 19,860 sharesChange vs previous 13F +15,240 shares
0.06% of the 13F portfolio, value $1,397,945.
13F-HR 0001104659-25-111991 filed by OSTRUM ASSET MANAGEMENT
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-06-3013F 4,620 sharesChange vs previous 13F -742 shares
0.01% of the 13F portfolio, value $297,343.
13F-HR 0001104659-25-077550 filed by OSTRUM ASSET MANAGEMENT
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-03-3113F 5,362 sharesChange vs previous 13F -1,278 shares
0.02% of the 13F portfolio, value $372,873.
13F-HR 0001104659-25-048517 filed by OSTRUM ASSET MANAGEMENT
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-12-3113F 6,640 sharesChange vs previous 13F +867 shares
0.04% of the 13F portfolio, value $481,865.
13F-HR 0001104659-25-012937 filed by OSTRUM ASSET MANAGEMENT
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-09-3013F 5,773 sharesChange vs previous 13F not available
0.04% of the 13F portfolio, value $484,586.
13F-HR 0001104659-24-117692 filed by OSTRUM ASSET MANAGEMENT
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).