| Filed On | Filing |
|---|---|
| 24 Mar 2026 | DEFA14A |
| 27 Mar 2025 | DEFA14A |
| 28 Mar 2024 | DEFA14A |
| 27 Mar 2023 | DEFA14A |
| 24 Mar 2023 | DEFA14A |
| 27 Apr 2022 | DEFA14A |
| 25 Mar 2022 | DEFA14A |
| 05 Apr 2021 | DEFA14A |
| 20 Apr 2020 | DEFA14A |
| 20 Apr 2020 | DEFA14A |
| 20 Apr 2020 | DEFA14A |
| 26 Mar 2020 | DEFA14A |
| 22 Mar 2019 | DEFA14A |
| 20 Mar 2019 | DEFA14A |
| 21 Apr 2015 | DEFA14A |
| 14 Apr 2015 | DEFA14A |
| 14 Apr 2015 | DEFA14A |
| 27 Apr 2012 | DEFA14A |
| 12 Apr 2011 | DEFA14A |
| 21 Mar 2001 | ALLEGHENY TECHNOLOGIES INCORPORATED |
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