ATI
ATI Inc. · Industrials · Manufacturing - Metal Fabrication
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 3 | 0 | 877.66K | $165.60M | n/a | n/a |
| Q2 2026 | 152 | +8 | 101.49M | $19.98B | +13 | −4 |
| Q1 2026 | 146 | 0 | 103.32M | $15.00B | +8 | −9 |
| Q4 2025 | 145 | 0 | 109.79M | $12.60B | +3 | −2 |
| Q3 2025 | 24 | 0 | 59.58M | $4.85B | +2 | −3 |
| Q2 2025 | 22 | -1 | 57.72M | $4.98B | n/a | −1 |
| Q1 2025 | 20 | 0 | 26.30M | $1.37B | n/a | n/a |
| Q4 2024 | 20 | +1 | 23.98M | $1.32B | +1 | n/a |
| Q3 2024 | 18 | 0 | 15.90M | $1.06B | n/a | n/a |
| Q2 2024 | 18 | n/a | 15.27M | $846.69M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Capital World Investors ✦ | 2.87M | n/a | $159.08M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 1.95M | n/a | $108.03M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 3 | Millennium Management ✦ | 1.94M | n/a | $107.85M | 0.1% | n/c | 1 | SEC ↗ |
| 4 | Norges Bank ✦ (passive) | 1.56M | n/a | $86.25M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | T. Rowe Price ✦ | 1.22M | n/a | $67.47M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 6 | D. E. Shaw & Co. ✦ | 1.12M | n/a | $61.86M | 0.1% | n/c | 1 | SEC ↗ ×3 |
| 7 | Two Sigma Investments ✦ | 1.07M | n/a | $59.29M | 0.1% | n/c | 1 | SEC ↗ |
| 8 | Citadel Advisors ✦ | 837.93K | n/a | $46.46M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 9 | Fisher Asset Management ✦ | 786.74K | n/a | $43.62M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | Point72 Asset Management ✦ | 519.88K | n/a | $28.83M | 0.1% | n/c | 1 | SEC ↗ |
| 11 | Wellington Management ✦ | 498.84K | n/a | $27.66M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 12 | GAMCO Investors ✦ | 416.24K | n/a | $23.08M | 0.3% | n/c | 1 | SEC ↗ |
| 13 | Renaissance Technologies ✦ | 180.19K | n/a | $9.99M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | Soros Fund Management ✦ | 177.05K | n/a | $9.82M | 0.3% | n/c | 1 | SEC ↗ |
| 15 | Gotham Asset Management ✦ | 67.08K | n/a | $3.72M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | Marshall Wace ✦ | 51.41K | n/a | $2.85M | 0.0% | n/c | 1 | SEC ↗ |
| 17 | AQR Capital Management ✦ | 12.68K | n/a | $703,106 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 18 | ARK Investment Management ✦ | 2.37K | n/a | $131,250 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 669 holders, 126.99M shares, $18.05B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer · 9.00K sh · $1.73M
Officer · 16.50K sh · $3.19M
Officer · 16.50K sh · $3.42M
Director · 2.48K sh · $501,001
Officer · 16.50K sh · $3.47M
Officer · 16.50K sh · $3.41M
Officer, Director · 1.00K sh · $228,320
Officer, Director · 4.60K sh · $1.07M
Officer, Director · 9.12K sh · $2.11M
Officer, Director · 8.13K sh · $1.88M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology