SIMPLEX TRADING, LLC: MBI position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of SIMPLEX TRADING, LLC on MBI, newest first. How the timeline and the estimate are built.
SIMPLEX TRADING, LLC held 26,241 MBI shares at 2026-06-30 per its 13F-HR filed 2026-08-12.
the latest 13F is the newest step
- period ended2026-06-3013F 26,241 sharesChange vs previous 13F -2,316 shares
<0.01% of the 13F portfolio, value $171,091.
13F-HR 0001488542-26-000011 filed by SIMPLEX TRADING, LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F 28,557 sharesChange vs previous 13F -38,895 shares
0.01% of the 13F portfolio, value $168,771.
13F-HR 0001488542-26-000009 filed by SIMPLEX TRADING, LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 67,452 sharesChange vs previous 13F -188,188 shares
0.01% of the 13F portfolio, value $482,956.
13F-HR 0001488542-26-000002 filed by SIMPLEX TRADING, LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-09-3013F 255,640 sharesChange vs previous 13F +207,457 shares
0.04% of the 13F portfolio, value $1,904,000.
13F-HR 0001488542-25-000018 filed by SIMPLEX TRADING, LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-06-3013F 48,183 sharesChange vs previous 13F -26,348 shares
0.01% of the 13F portfolio, value $209,000.
13F-HR 0001488542-25-000010 filed by SIMPLEX TRADING, LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-03-3113F 74,531 sharesChange vs previous 13F -63,349 shares
0.01% of the 13F portfolio, value $371,000.
13F-HR 0001488542-25-000007 filed by SIMPLEX TRADING, LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-12-3113F 137,880 sharesChange vs previous 13F +40,887 shares
0.03% of the 13F portfolio, value $890,000.
13F-HR 0001488542-25-000001 filed by SIMPLEX TRADING, LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-09-3013F 96,993 sharesChange vs previous 13F not available
0.01% of the 13F portfolio, value $346,000.
13F-HR 0001488542-24-000015 filed by SIMPLEX TRADING, LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).