Who owns ATI INC (AT)? Elite investor 13F holders
7 tracked elite investors reported holding ATI INC as of 2026-06-30, including Viking Global Investors, D.E. Shaw, Polen Capital Management, GAMCO, Gotham Asset Management. Who bought, trimmed or exited each quarter, with links to the original SEC 13F filings.
7 tracked investors currently reported holding · Latest report period: 2026-06-30 · Materials · Materials
ATI Inc. produces and sells specialty materials and complex components worldwide. It operates in two segments, High Performance Materials & Components, and Advanced Alloys & Solutions. The company produces high performance materials, including titanium and titanium-based alloys, nickel- and cobalt-based alloys and superalloys, advanced powder alloys and other specialty materials, and metallic…
Reported holders and securities, including exits (up to 20)
| Investor | Security | Instrument | Report period | Filed | Value | Quantity | Units | Change | Source |
|---|---|---|---|---|---|---|---|---|---|
| Viking Global Investors | ALLEGHENY TECHNOLOGIES INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 227429748.00 USD | 1153880.000000 | Shares | reduce | Original filing |
| D.E. Shaw | ALLEGHENY TECHNOLOGIES INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 160751804.00 USD | 815585.000000 | Shares | reduce | Original filing |
| Polen Capital Management | ALLEGHENY TECHNOLOGIES INC | SHARE | 2026-06-30 | 2026-08-04 00:00:00 | 161471378.00 USD | 819236.000000 | Shares | buy | Original filing |
| GAMCO | ALLEGHENY TECHNOLOGIES INC | SHARE | 2026-06-30 | 2026-08-12 00:00:00 | 70561800.00 USD | 358000.000000 | Shares | reduce | Original filing |
| Gotham Asset Management | ALLEGHENY TECHNOLOGIES INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 53132641.00 USD | 269572.000000 | Shares | add | Original filing |
| Tudor Investment | ALLEGHENY TECHNOLOGIES INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 29296550.00 USD | 148638.000000 | Shares | add | Original filing |
| Bridgewater Associates | ALLEGHENY TECHNOLOGIES INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 22654674.00 USD | 114940.000000 | Shares | add | Original filing |
| Ancora Advisors / Ancora Holdings | ALLEGHENY TECHNOLOGIES INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 0.00 USD | 0.000000 | Shares | exited | Original filing |
Public disclosures can be delayed, incomplete, or amended. Report period describes a position date; transaction date describes a reported transaction; filed describes submission. A recent filing or page update does not establish a current holding. A dash means unavailable or not comparable, not zero.
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