Weiss Asset Management LP: ATMU position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Weiss Asset Management LP on ATMU, newest first. How the timeline and the estimate are built.
Weiss Asset Management LP held 0 ATMU shares at 2026-06-30 per its 13F-HR filed 2026-08-14.
the latest 13F is the newest step
- period ended2026-06-3013F 0 sharesChange vs previous 13F -12,506 shares
13F-HR 0001357550-26-000029 filed by Weiss Asset Management LP
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
Exited: the 13F for this period no longer lists the position.
- period ended2026-03-3113F/A 12,506 sharesChange vs previous 13F +12,506 shares
0.01% of the 13F portfolio, value $709,966.
13F-HR 0001357550-26-000023 filed by Weiss Asset Management LP
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-03-3113F/A 0 sharesChange vs previous 13F -143,208 shares
13F-HR 0001357550-25-000020 filed by Weiss Asset Management LP
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
Exited: the 13F for this period no longer lists the position.
- period ended2024-12-3113F/A 143,208 sharesChange vs previous 13F -127,063 shares
0.13% of the 13F portfolio, value $5,610,889.
13F-HR 0001357550-25-000013 filed by Weiss Asset Management LP
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-09-3013F/A 270,271 sharesChange vs previous 13F not available
0.26% of the 13F portfolio, value $10,143,271.
13F-HR 0001357550-24-000029 filed by Weiss Asset Management LP
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).