Rosenberg Matthew Hamilton: RIO position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Rosenberg Matthew Hamilton on RIO, newest first. How the timeline and the estimate are built.
Rosenberg Matthew Hamilton held 1,941 RIO shares at 2026-09-30 per its 13F-HR filed 2026-10-05.
the latest 13F is the newest step
- period ended2026-09-3013F 1,941 sharesChange vs previous 13F +99 shares
0.03% of the 13F portfolio, value $182,784.
13F-HR 0001812103-26-000005 filed by Rosenberg Matthew Hamilton
Accepted , ingested - period ended2026-06-3013F 1,842 sharesChange vs previous 13F +570 shares
0.03% of the 13F portfolio, value $174,861.
13F-HR 0001812103-26-000003 filed by Rosenberg Matthew Hamilton
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F 1,272 sharesChange vs previous 13F 0 shares
0.02% of the 13F portfolio, value $118,665.
13F-HR 0001812103-26-000002 filed by Rosenberg Matthew Hamilton
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 1,272 sharesChange vs previous 13F +642 shares
0.02% of the 13F portfolio, value $101,798.
13F-HR 0001812103-26-000001 filed by Rosenberg Matthew Hamilton
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-09-3013F 630 sharesChange vs previous 13F +392 shares
0.01% of the 13F portfolio, value $41,586.
13F-HR 0001812103-25-000006 filed by Rosenberg Matthew Hamilton
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-06-3013F 238 sharesChange vs previous 13F 0 shares
<0.01% of the 13F portfolio, value $13,883.
13F-HR 0001812103-25-000004 filed by Rosenberg Matthew Hamilton
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-03-3113F 238 sharesChange vs previous 13F +3 shares
<0.01% of the 13F portfolio, value $14,299.
13F-HR 0001812103-25-000003 filed by Rosenberg Matthew Hamilton
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-12-3113F 235 sharesChange vs previous 13F not available
<0.01% of the 13F portfolio, value $13,820.
13F-HR 0001812103-25-000001 filed by Rosenberg Matthew Hamilton
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).