CASTLEARK MANAGEMENT LLC: NEXT position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of CASTLEARK MANAGEMENT LLC on NEXT, newest first. How the timeline and the estimate are built.
CASTLEARK MANAGEMENT LLC held 106,250 NEXT shares at 2026-06-30 per its 13F-HR filed 2026-08-14.
the latest 13F is the newest step
- period ended2026-06-3013F 106,250 sharesChange vs previous 13F 0 shares
0.02% of the 13F portfolio, value $801,125.
13F-HR 0001106832-26-000004 filed by CASTLEARK MANAGEMENT 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 106,250 sharesChange vs previous 13F 0 shares
0.03% of the 13F portfolio, value $813,875.
13F-HR 0001106832-26-000003 filed by CASTLEARK MANAGEMENT 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 106,250 sharesChange vs previous 13F 0 shares
0.02% of the 13F portfolio, value $559,938.
13F-HR 0001106832-26-000001 filed by CASTLEARK MANAGEMENT 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 106,250 sharesChange vs previous 13F 0 shares
0.02% of the 13F portfolio, value $721,438.
13F-HR 0001106832-25-000008 filed by CASTLEARK MANAGEMENT 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 106,250 sharesChange vs previous 13F +52,810 shares
0.03% of the 13F portfolio, value $946,688.
13F-HR 0001106832-25-000006 filed by CASTLEARK MANAGEMENT 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 53,440 sharesChange vs previous 13F not available
0.01% of the 13F portfolio, value $415,763.
13F-HR 0001106832-25-000004 filed by CASTLEARK MANAGEMENT LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).