ATI
ATI Inc. · Industrials · Manufacturing - Metal Fabrication
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +9.7% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 150 | +8 | 101.07M | $19.89B | +13 | −6 |
| 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 | — | −1 |
| Q1 2025 | 20 | 0 | 26.30M | $1.37B | — | — |
| Q4 2024 | 20 | +1 | 23.98M | $1.32B | +1 | — |
| Q3 2024 | 18 | 0 | 15.90M | $1.06B | — | — |
| Q2 2024 | 18 | — | 15.27M | $846.69M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Capital World Investors ✦ | 6.98M | +1.6% | $363.28M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 2 | State Street Global Advisors ✦ (passive) | 5.77M | -3.4% | $300.12M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 2.38M | +10.6% | $123.77M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 4 | D. E. Shaw & Co. ✦ | 1.64M | +12.0% | $85.29M | 0.1% | ▲ Add | 4 | SEC ↗ ×2 |
| 5 | Norges Bank ✦ (passive) | 1.47M | -4.9% | $76.44M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 6 | Millennium Management ✦ | 1.37M | +1266.9% | $71.08M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 7 | Citadel Advisors ✦ | 1.07M | +172.9% | $55.48M | 0.1% | ▲ Add | 4 | SEC ↗ ×2 |
| 8 | Point72 Asset Management ✦ | 1.03M | +28.9% | $53.52M | 0.2% | ▲ Add | 4 | SEC ↗ |
| 9 | T. Rowe Price ✦ | 938.93K | -16.8% | $48.85M | 0.0% | ▼ Trim | 4 | SEC ↗ ×2 |
| 10 | Fisher Asset Management ✦ | 651.49K | -1.8% | $33.90M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 11 | Soros Fund Management ✦ | 613.88K | +56.8% | $31.94M | 0.8% | ▲ Add | 4 | SEC ↗ |
| 12 | Marshall Wace ✦ | 608.58K | -12.9% | $31.66M | 0.0% | ▼ Trim | 4 | SEC ↗ ×3 |
| 13 | Wellington Management ✦ | 518.19K | +14.8% | $26.96M | 0.0% | ▲ Add | 4 | SEC ↗ ×3 |
| 14 | GAMCO Investors ✦ | 401.70K | -1.0% | $20.90M | 0.2% | ▼ Trim | 4 | SEC ↗ |
| 15 | Bridgewater Associates ✦ | 318.04K | +314.5% | $16.55M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 16 | Gotham Asset Management ✦ | 186.91K | +4.8% | $9.73M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 17 | Renaissance Technologies ✦ | 173.89K | -2.4% | $9.05M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 18 | Two Sigma Investments ✦ | 137.45K | -42.0% | $7.15M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 19 | AQR Capital Management ✦ | 54.03K | -80.6% | $2.81M | 0.0% | ▼ Trim | 4 | SEC ↗ ×5 |
| 20 | ARK Investment Management ✦ | 1.54K | +8.4% | $80,386 | 0.0% | ▲ Add | 4 | 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