ATI
ATI Inc. · Industrials · Manufacturing - Metal Fabrication
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +4.1% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 152 | +8 | 101.48M | $19.96B | +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 | — | −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 ✦ | 3.43M | +19.5% | $229.41M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 1.95M | +0.3% | $130.71M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 1.95M | +0.3% | $130.71M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | Norges Bank ✦ (passive) | 1.78M | +14.6% | $119.28M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | Millennium Management ✦ | 1.60M | -18.0% | $106.72M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 6 | D. E. Shaw & Co. ✦ | 1.28M | +14.9% | $85.80M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 7 | D. E. Shaw & Co. ✦ | 1.28M | +14.9% | $85.80M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 8 | T. Rowe Price ✦ | 1.12M | -7.7% | $75.16M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 9 | T. Rowe Price ✦ | 1.12M | -7.7% | $75.16M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 10 | Two Sigma Investments ✦ | 871.38K | -18.5% | $58.30M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 11 | Marshall Wace ✦ | 822.18K | +1499.3% | $55.01M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 12 | Marshall Wace ✦ | 822.18K | +1499.3% | $55.01M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 13 | Fisher Asset Management ✦ | 658.31K | -16.3% | $44.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 14 | Point72 Asset Management ✦ | 571.68K | +10.0% | $38.25M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 15 | Wellington Management ✦ | 560.71K | +12.4% | $37.52M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 16 | Wellington Management ✦ | 560.71K | +12.4% | $37.52M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 17 | Wellington Management ✦ | 560.71K | +12.4% | $37.52M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 18 | GAMCO Investors ✦ | 409.04K | -1.7% | $27.37M | 0.3% | ▼ Trim | 2 | SEC ↗ |
| 19 | Citadel Advisors ✦ | 253.72K | -69.7% | $16.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 20 | Citadel Advisors ✦ | 253.72K | -69.7% | $16.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 21 | Soros Fund Management ✦ | 197.46K | +11.5% | $13.21M | 0.4% | ▲ Add | 2 | SEC ↗ |
| 22 | AQR Capital Management ✦ | 184.19K | +1352.6% | $12.18M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 23 | AQR Capital Management ✦ | 184.19K | +1352.6% | $12.18M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 24 | Gotham Asset Management ✦ | 113.14K | +68.7% | $7.57M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 25 | Renaissance Technologies ✦ | 88.19K | -51.1% | $5.90M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 26 | ARK Investment Management ✦ | 1.67K | -29.4% | $111,874 | 0.0% | ▼ Trim | 2 | 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, Director · 1.00K sh · $228,320
Officer, Director · 2.00K sh · $459,120
Officer, Director · 8.13K sh · $1.88M
Officer, Director · 9.12K sh · $2.11M
Officer, Director · 4.60K sh · $1.07M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology