Rossby Financial, LCC: SON position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Rossby Financial, LCC on SON, newest first. How the timeline and the estimate are built.
Rossby Financial, LCC held 20 SON shares at 2026-06-30 per its 13F-HR filed 2026-08-04.
the latest 13F is the newest step
- period ended2026-06-3013F 20 sharesChange vs previous 13F 0 shares
<0.01% of the 13F portfolio, value $1,127.
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 20 sharesChange vs previous 13F 0 shares
<0.01% of the 13F portfolio, value $1,103.
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 20 sharesChange vs previous 13F -120 shares
<0.01% of the 13F portfolio, value $873.
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 140 sharesChange vs previous 13F +80 shares
<0.01% of the 13F portfolio, value $6,026.
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 60 sharesChange vs previous 13F -460 shares
<0.01% of the 13F portfolio, value $2,614.
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 520 sharesChange vs previous 13F not available
0.01% of the 13F portfolio, value $24,019.
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).