ATI Inc. Subsidiaries
Every subsidiary the company listed in Exhibit 21 of its annual reports, newest list first (18 lists). Names and jurisdictions are as filed.
- 2026-02-20: Subsidiary Allegheny Ludlum, LLC; Jurisdiction Pennsylvania.
- 2026-02-20: Subsidiary ATI Specialty Rolled Products Holdings LLC; Jurisdiction Pennsylvania.
- 2026-02-20: Subsidiary ATI Ladish LLC; Jurisdiction Wisconsin.
- 2026-02-20: Subsidiary ATI Operating Holdings, LLC; Jurisdiction Delaware.
| Annual report filed | Subsidiary | Jurisdiction |
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| 2026-02-20 | Allegheny Ludlum, LLC | Pennsylvania |
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| 2026-02-20 | ATI Specialty Rolled Products Holdings LLC | Pennsylvania |
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| 2026-02-20 | ATI Ladish LLC | Wisconsin |
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| 2026-02-20 | ATI Operating Holdings, LLC | Delaware |
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| 2026-02-20 | ATI Specialty Materials, LLC | Pennsylvania |
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| 2026-02-20 | ATI Specialty Alloys & Components, LLC | Delaware |
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