Driehaus Capital Management LLC: ATI position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Driehaus Capital Management LLC on ATI, newest first. How the timeline and the estimate are built.
Driehaus Capital Management LLC held 205,124 ATI shares at 2026-06-30 per its 13F-HR filed 2026-08-14.
the latest 13F is the newest step
- period ended2026-06-3013F 205,124 sharesChange vs previous 13F -7,610 shares
0.23% of the 13F portfolio, value $40,429,940.
13F-HR 0000938206-26-000048 filed by Driehaus Capital 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 212,734 sharesChange vs previous 13F -377 shares
0.23% of the 13F portfolio, value $30,944,288.
13F-HR 0000938206-26-000031 filed by Driehaus Capital Management LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 213,111 sharesChange vs previous 13F +213,111 shares
0.17% of the 13F portfolio, value $24,456,618.
13F-HR 0000938206-26-000018 filed by Driehaus 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 0 sharesChange vs previous 13F -816,690 shares
13F-HR 0000938206-25-000009 filed by Driehaus 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 ended2024-09-3013F 816,690 sharesChange vs previous 13F not available
0.47% of the 13F portfolio, value $54,644,728.
13F-HR 0000938206-24-000037 filed by Driehaus Capital Management LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).