Longitude (Cayman) Ltd.: ARM position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Longitude (Cayman) Ltd. on ARM, newest first. How the timeline and the estimate are built.
Longitude (Cayman) Ltd. held 20,500 ARM shares at 2026-06-30 per its 13F-HR filed 2026-08-12.
the latest 13F is the newest step
- period ended2026-06-3013F 20,500 sharesChange vs previous 13F -34,500 shares
4.8% of the 13F portfolio, value $7,268,685.
13F-HR 0001664999-26-000015 filed by Longitude (Cayman) Ltd.
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F 55,000 sharesChange vs previous 13F +5,000 shares
7.26% of the 13F portfolio, value $8,320,400.
13F-HR 0001664999-26-000006 filed by Longitude (Cayman) Ltd.
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 50,000 sharesChange vs previous 13F +9,500 shares
4.73% of the 13F portfolio, value $5,465,500.
13F-HR 0001664999-26-000005 filed by Longitude (Cayman) Ltd.
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-12-3113F 40,500 sharesChange vs previous 13F +14,000 shares
5.73% of the 13F portfolio, value $4,996,080.
13F-HR 0001664999-25-000001 filed by Longitude (Cayman) Ltd.
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-09-3013F 26,500 sharesChange vs previous 13F not available
5.43% of the 13F portfolio, value $3,789,765.
13F-HR 0001664999-24-000004 filed by Longitude (Cayman) Ltd.
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).