Ionic Capital Management LLC: ATMU position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Ionic Capital Management LLC on ATMU, newest first. How the timeline and the estimate are built.
Ionic Capital Management LLC held 0 ATMU shares at 2026-03-31 per its 13F-HR filed 2026-05-15.
the latest 13F is the newest step
- period ended2026-03-3113F 0 sharesChange vs previous 13F -60,003 shares
13F-HR 0000929638-26-001894 filed by Ionic Capital Management LLC
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 ended2025-12-3113F 60,003 sharesChange vs previous 13F -8,352 shares
3.08% of the 13F portfolio, value $3,114,756.
13F-HR 0000929638-26-000662 filed by Ionic Capital 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 68,355 sharesChange vs previous 13F -7,000 shares
3.43% of the 13F portfolio, value $3,082,127.
13F-HR 0000929638-25-004285 filed by Ionic Capital 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 75,355 sharesChange vs previous 13F 0 shares
3.08% of the 13F portfolio, value $2,744,429.
13F-HR 0000929638-25-003039 filed by Ionic Capital 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 75,355 sharesChange vs previous 13F -13,801 shares
3.15% of the 13F portfolio, value $2,767,789.
13F-HR 0000929638-25-001896 filed by Ionic Capital Management 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 89,156 sharesChange vs previous 13F -21,562 shares
3.44% of the 13F portfolio, value $3,493,132.
13F-HR 0000929638-25-000778 filed by Ionic Capital Management 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 110,718 sharesChange vs previous 13F not available
2.51% of the 13F portfolio, value $4,155,247.
13F-HR 0000929638-24-003887 filed by Ionic Capital Management LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).