Capital World Investors 13D and 13G filings for ATI Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-05-14 1:55 pm Sale | 2026-03-31 | 13G | ATI INC. ATI | Capital World Investors | 5,719,812 4.200% | -2,189,297![]() (-27.68%) | Filing |
| 2025-11-13 7:06 pm Purchase | 2025-09-30 | 13G | ATI INC. ATI | Capital World Investors | 7,909,109 5.700% | 5,319,672![]() (+205.44%) | Filing |

