Dallas – – September 28, 2026 -- ATI Inc. (NYSE: ATI) will hold an Investor Day livestream on Thursday, November 12, 2026, running from 12:30 PM to 3:00 PM ET, during which company leaders will present new financial and strategic targets.

Dallas – September 17, 2026 -- ATI Inc. (NYSE: ATI) Board Chair, President and CEO Kim Fields will participate in a fireside chat at the Morgan Stanley 14th Annual Laguna Conference in Dana Point, California, on September 17, 2026, at 4:05 p.m. ET.