ATI Inc. Senior VP & CDIO Timothy J. Harris Sells $1.73M in Common Stock Under Rule 10b5-1 Plan

Overview

On September 23, 2026, ATI Inc. ($ATI) officer Timothy J. Harris, Senior Vice President and Chief Digital and Information Officer (CDIO), reported the open-market sale of 9,000 shares of common stock executed on September 21, 2026.

Transaction Breakdown

• Security: Common Stock ($0.10 par value)
• Shares Disposed: 9,000 shares
• Execution Price: $191.82 per share
• Gross Proceeds: $1,726,380.00
• Remaining Holdings: 88,187 directly held shares

Strategic & Market Context

• Rule 10b5-1 Trading Plan: The transaction was executed pursuant to a pre-arranged Rule 10b5-1 trading plan established on May 21, 2026. The footnote indicates the plan was adopted for personal tax and estate planning purposes.
• Significance: The sale represented approximately 9.26% of Harris's pre-transaction equity holdings (97,187 shares). Because the disposition was carried out under a pre-established 10b5-1 plan and the executive maintains a substantial direct stake of 88,187 shares, the transaction carries low informational signaling regarding operational or financial headwinds.