Elefante Mark B: ARIMX position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Elefante Mark B on ARIMX, newest first. How the timeline and the estimate are built.
Elefante Mark B held 78,815 ARIMX shares at 2026-06-30 per its 13F-HR filed 2026-08-13.
the latest 13F is the newest step
- period ended2026-06-3013F 78,815 sharesChange vs previous 13F +10,522 shares
0.36% of the 13F portfolio, value $832,293.
13F-HR 0001661535-26-000003 filed by Elefante Mark B
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F 68,293 sharesChange vs previous 13F +26,608 shares
0.37% of the 13F portfolio, value $667,912.
13F-HR 0001661535-26-000002 filed by Elefante Mark B
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 41,685 sharesChange vs previous 13F +100 shares
0.25% of the 13F portfolio, value $414,355.
13F-HR 0001661535-26-000001 filed by Elefante Mark B
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-09-3013F 41,585 sharesChange vs previous 13F +11,244 shares
0.27% of the 13F portfolio, value $425,836.
13F-HR 0001661535-25-000004 filed by Elefante Mark B
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-06-3013F 30,341 sharesChange vs previous 13F +350 shares
0.23% of the 13F portfolio, value $305,843.
13F-HR 0001661536-25-000004 filed by Elefante Mark B
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-03-3113F 29,991 sharesChange vs previous 13F +1,400 shares
0.23% of the 13F portfolio, value $290,919.
13F-HR 0001661535-25-000001 filed by Elefante Mark B
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-12-3113F 28,591 sharesChange vs previous 13F not available
0.26% of the 13F portfolio, value $286,202.
13F-HR 0001661536-25-000002 filed by Elefante Mark B
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).