February 10, 2026 · Form 4 insider transaction
WETHERBEE ROBERT S sold 10,438 shares of ATI Inc. at $146.67 per share, a transaction worth $1.53M. The trade was recorded as open-market sale and disclosed on an SEC Form 4, filed 9 days after the transaction.
Shares sold pursuant to a 10b5-1 Trading Plan dated August 15, 2025, entered into for personal tax and estate planning purposes.; The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $146.52 to $146.88, The reporting person undertakes to provide to the Issuer, its security holders and the Staff of the U. S. Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each specific price within the range reported.