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ATI Inc. Officer Timothy J. Harris Files Form 144 for $3.19M Stock Sale

Medium SignificanceSeptember 14, 2026 at 4:04:58 PM UTC

ATI INC

$ATI144CIK: 0001018963

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Filing Summary

{"title": "Form 144 Notice of Proposed Sale - ATI INC (ATI)", "color": 15105570, "fields": [{"name": "Insider", "value": "Timothy J. Harris (Officer)", "inline": true}, {"name": "Shares to Sell", "value": "16,500", "inline": true}, {"name": "Est. Value", "value": "$3,185,490.00", "inline": true}, {"name": "Approx. Sale Date", "value": "09/14/2026", "inline": true}, {"name": "Trading Plan", "value": "Rule 10b5-1 (Adopted 05/21/2026)", "inline": true}], "footer": {"text": "SEC Form 144 Filing"}}

Comprehensive Analysis

Executive Summary

On September 14, 2026, Timothy J. Harris, Officer at ATI INC ($ATI), filed a Form 144 notification detailing an intended sale of 16,500 shares of common stock with an aggregate market value of approximately $3,185,490.00.

Transaction Details

  • Security Class: Common Stock
  • Proposed Sale Date: September 14, 2026
  • Shares Proposed for Sale: 16,500
  • Aggregate Market Value: $3,185,490.00 (~$193.06 per share)
  • Broker: Fidelity Brokerage Services LLC
  • Source of Shares: Restricted Stock Vesting (acquired between 2021 and 2024 as compensation from the issuer)

Trading Plan & Prior Activity

  • Rule 10b5-1 Plan: The proposed sale is executed pursuant to a pre-arranged Rule 10b5-1 trading plan adopted on May 21, 2026.
  • Recent Sales History (Past 3 Months):
    • 09/08/2026: 16,500 shares sold for gross proceeds of $3,424,410.00
    • 08/31/2026: 16,500 shares sold for gross proceeds of $3,465,165.00
    • 08/24/2026: 16,500 shares sold for gross proceeds of $3,414,180.00

Analysis & Market Impact

The transaction represents a continuation of a systematic weekly liquidation schedule under a Rule 10b5-1 trading plan. Given that the sales are routine, pre-planned, and represent a small fraction of the 136,170,383 total outstanding shares, the trading significance is rated as Medium.

Topics:#ATI#InsiderSelling#Form144#StockMarket

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