Rossby Financial, LCC: JMST position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Rossby Financial, LCC on JMST, newest first. How the timeline and the estimate are built.
Rossby Financial, LCC held 9,697 JMST shares at 2026-06-30 per its 13F-HR filed 2026-08-04.
the latest 13F is the newest step
- period ended2026-06-3013F 9,697 sharesChange vs previous 13F +767 shares
0.09% of the 13F portfolio, value $494,531.
13F-HR 0002056510-26-000003 filed by Rossby Financial, LCC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F 8,930 sharesChange vs previous 13F +8,887 shares
0.09% of the 13F portfolio, value $454,624.
13F-HR 0002056510-26-000002 filed by Rossby Financial, LCC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 43 sharesChange vs previous 13F -843 shares
<0.01% of the 13F portfolio, value $2,190.
13F-HR 0002056510-26-000001 filed by Rossby Financial, LCC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-09-3013F 886 sharesChange vs previous 13F +10 shares
0.01% of the 13F portfolio, value $45,102.
13F-HR 0002056510-25-000005 filed by Rossby Financial, LCC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-06-3013F 876 sharesChange vs previous 13F +30 shares
0.02% of the 13F portfolio, value $44,606.
13F-HR 0002056510-25-000003 filed by Rossby Financial, LCC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-03-3113F 846 sharesChange vs previous 13F not available
0.02% of the 13F portfolio, value $42,935.
13F-HR 0002056510-25-000002 filed by Rossby Financial, LCC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).