ATI Inc.
Last updated September 27, 2026
Organization details
- Legal name
- ATI Inc.
- Ownership
- Public
- Status
- Active
- Headquarters country
- United States
- Ticker symbol
- ATI
- Primary stock exchange
- NYSE
Identifiers
- SEC CIK
- 0001018963
Board of directors
-
Carolyn Corvi · DirectorSince 2023
-
David J. Morehouse · DirectorSince 2023
-
David P. Hess · DirectorSince 2023
-
Elizabeth Hefley Lund · DirectorSince 2025
-
Herbert J. Carlisle · DirectorSince 2023
-
J. Brett Harvey · DirectorSince 2023
-
James C. Diggs · DirectorSince 2023
-
Jean Lydon-Rodgers · DirectorSince 2025
-
Kimberly A. Fields · Director · Chair, President and CEOSince 2024
-
M. Leroy Ball · DirectorSince 2023
-
Marianne Kah · DirectorSince 2023
-
Robert S. Wetherbee · Director · Executive ChairmanSince 2023
-
Ruby Sharma · DirectorSince 2023
Chief executives
Kimberly A. Fields
· President, CEO and Director
Dates unknown
Board connections
8 of this board's directors also sit on 12 other boards.
- via James C. Diggs
- via Robert S. Wetherbee
- via Robert S. Wetherbee
- via Carolyn Corvi
- via M. Leroy Ball
- via Kimberly A. Fields
- via Ruby Sharma
- via David P. Hess
- via Ruby Sharma
- via Carolyn Corvi
- via J. Brett Harvey
- via David P. Hess
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $0
- 0 purchases by 0 insiders
- Sold, last 12 months
- $86,193,848
- 57 sales by 5 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 21, 2026 | Harris Timothy J Officer (Senior VP and CDIO) | Open-market sale | −9,000 | $191.82 | $1,726,380 |
| Sep 14, 2026 | Harris Timothy J Officer (Senior VP and CDIO) | Open-market sale | −16,500 | $193.06 | $3,185,490 |
| Sep 8, 2026 | Harris Timothy J Officer (Senior VP and CDIO) | Open-market sale | −16,500 | $207.54 | $3,424,410 |
| Sep 2, 2026 | David J. Morehouse Director | Open-market sale | −2,485 | $201.61 | $501,001 |
| Aug 31, 2026 | Harris Timothy J Officer (Senior VP and CDIO) | Open-market sale | −16,500 | $210.01 | $3,465,165 |
| Aug 24, 2026 | Harris Timothy J Officer (Senior VP and CDIO) | Open-market sale | −16,500 | $206.92 | $3,414,180 |
| Aug 17, 2026 | Kimberly A. Fields Director, Officer (Chair, President and CEO) | Open-market sale | −1,000 | $228.32 | $228,320 |
| Aug 17, 2026 | Kimberly A. Fields Director, Officer (Chair, President and CEO) | Open-market sale | −2,000 | $229.56 | $459,120 |
| Aug 17, 2026 | Kimberly A. Fields Director, Officer (Chair, President and CEO) | Open-market sale | −8,131 | $230.66 | $1,875,496 |
| Aug 17, 2026 | Kimberly A. Fields Director, Officer (Chair, President and CEO) | Open-market sale | −9,116 | $231.72 | $2,112,360 |
| Aug 17, 2026 | Kimberly A. Fields Director, Officer (Chair, President and CEO) | Open-market sale | −4,598 | $232.43 | $1,068,713 |
| Jul 28, 2026 | Kimberly A. Fields Director, Officer (Chair, President and CEO) | Open-market sale | −31,757 | $190.99 | $6,065,269 |
| Jul 7, 2026 | Kimberly A. Fields Director, Officer (Chair, President and CEO) | Open-market sale | −2,000 | $179.25 | $358,500 |
| Jul 7, 2026 | Kimberly A. Fields Director, Officer (Chair, President and CEO) | Open-market sale | −2,000 | $180.00 | $360,000 |
| Jul 7, 2026 | Kimberly A. Fields Director, Officer (Chair, President and CEO) | Open-market sale | −200 | $180.85 | $36,170 |
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