ATI INC (ATI) Institutional Ownership and Insiders Activity

ATI INC (ATI) is widely held by institutional investors, with 771 firms reporting positions valued at approximately $24.84B based on SEC Form 13F filings for the quarter ended June 30, 2026.

Blackrock, Inc. is the largest disclosed holder, reporting approximately $3.69B in ATI holdings in its latest filing.

Recent insider activity includes 20 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.