ATI Inc (ATI) Superinvestor holders
26 of the superinvestors we track hold ATI Inc (ATI) in their latest 13F filings, $2.2B in total.
Summary
The largest holder is Cliff Asness (AQR Capital Management), with $282M, 0.1% of the portfolio.
In their latest quarter: 5 opened a new position, 10 added, 11 trimmed.
Who holds it
Each investor's latest 13F filing, largest stake first. What a 13F shows.
| Investor | Last change | Shares | Value | % of portfolio | Filed for |
|---|---|---|---|---|---|
| Cliff Asness AQR Capital Management |
Added | 1,432,935 | $282M | 0.1% | Q2 2026 |
| Steve Cohen Point72 Asset Management |
Trimmed | 1,240,348 | $244M | 0.4% | Q2 2026 |
| Andreas Halvorsen Viking Global Investors |
Trimmed | 1,153,880 | $227M | 0.6% | Q2 2026 |
| Ken Fisher Fisher Investments |
Added | 910,047 | $172M | 0.0% | Q3 2026 |
| Arrowstreet Capital | Trimmed | 839,786 | $166M | 0.1% | Q2 2026 |
| Dan Davidowitz Polen Capital Management |
New position | 819,236 | $161M | 1.4% | Q2 2026 |
| David Shaw D. E. Shaw & Co. |
Trimmed | 815,585 | $161M | 0.1% | Q2 2026 |
| Paul Marshall Marshall Wace |
Added | 709,552 | $140M | 0.1% | Q2 2026 |
| Two Sigma Two Sigma Investments |
Added | 636,671 | $125M | 0.1% | Q2 2026 |
| Aziz Hamzaogullari Loomis Sayles & Co |
Trimmed | 581,326 | $115M | 0.1% | Q2 2026 |
| Brandon Haley Holocene Advisors |
Trimmed | 497,600 | $98M | 0.2% | Q2 2026 |
| Mario Gabelli GAMCO Investors |
Trimmed | 358,000 | $71M | 0.6% | Q2 2026 |
| Hersh Cohen ClearBridge Investments |
New position | 280,386 | $55M | 0.0% | Q2 2026 |
| Joel Greenblatt Gotham Asset Management |
Added | 269,572 | $53M | 0.1% | Q2 2026 |
| Paul Tudor Jones Tudor Investment Corp |
Added | 148,638 | $29M | 0.1% | Q2 2026 |
| Alan Howard Brevan Howard |
Added | 117,553 | $23M | 0.3% | Q2 2026 |
| Ray Dalio Bridgewater Associates |
Added | 114,940 | $23M | 0.1% | Q2 2026 |
| George Soros Soros Fund Management |
Added | 73,339 | $14M | 0.2% | Q2 2026 |
| Chuck Royce Royce Investment Partners |
Trimmed | 72,575 | $14M | 0.1% | Q3 2026 |
| Man Group Man Group plc |
Added | 59,556 | $12M | 0.0% | Q2 2026 |
| Jennison Associates | New position | 46,197 | $9M | 0.0% | Q2 2026 |
| Louis Bacon Moore Capital Management |
Trimmed | 30,927 | $6M | 0.1% | Q2 2026 |
| Ken Tropin Graham Capital Management |
New position | 14,742 | $3M | 0.1% | Q2 2026 |
| Ensign Peak Ensign Peak Advisors |
Trimmed | 7,441 | $1M | 0.0% | Q2 2026 |
| Alec Litowitz Magnetar Capital |
New position | 5,931 | $1M | 0.0% | Q2 2026 |
| Cathie Wood ARK Investment Management |
Trimmed | 487 | $95,988 | 0.0% | Q2 2026 |
Holders by quarter
| Quarter | Superinvestors holding it |
|---|---|
| Q2 2026 | 27 |
| Q1 2026 | 22 |
| Q4 2025 | 17 |
| Q3 2025 | 22 |
| Q2 2025 | 23 |
| Q1 2025 | 22 |
| Q4 2024 | 22 |
| Q3 2024 | 22 |
Questions about ATI Inc
Which superinvestors own ATI Inc?
26 of the superinvestors we track hold ATI Inc (ATI) in their latest 13F filings, $2.2B in total. Cliff Asness, Steve Cohen, Andreas Halvorsen, Ken Fisher, Arrowstreet Capital, Dan Davidowitz.
Who is the largest superinvestor holder of ATI?
The largest holder is Cliff Asness (AQR Capital Management), with $282M, 0.1% of the portfolio.
From ATI Inc's annual reports filed with the SEC (XBRL data), standardised by Investingly. Information only, not investment advice.