Security record · archived quarter
ATI
ATI Inc. · Industrials · Manufacturing - Metal Fabrication
145Tracked holders
0Δ holders
109.79MShares held
$12.60BReported value
+3New positions
−2Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow -1.7% · net new positions +0.7% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| 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 | — | — |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Capital International Investors | 17.10M | — | $1.96B | 0.3% | n/c | 1 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 14.67M | -1.3% | $1.68B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 14.67M | -1.3% | $1.68B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 14.67M | -1.3% | $1.68B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 14.67M | -1.3% | $1.68B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 14.67M | -1.3% | $1.68B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 14.67M | -1.3% | $1.68B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 14.67M | -1.3% | $1.68B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 14.67M | -1.3% | $1.68B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 14.67M | -1.3% | $1.68B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 14.67M | -1.3% | $1.68B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 14.67M | -1.3% | $1.68B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 14.67M | -1.3% | $1.68B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 14.67M | -1.3% | $1.68B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 14.67M | -1.3% | $1.68B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 14.67M | -1.3% | $1.68B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 14.67M | -1.3% | $1.68B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 12.73M | -2.5% | $1.46B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 19 | The Vanguard Group ✦ (passive) | 12.73M | -2.5% | $1.46B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 20 | The Vanguard Group ✦ (passive) | 12.73M | -2.5% | $1.46B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 21 | The Vanguard Group ✦ (passive) | 12.73M | -2.5% | $1.46B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 22 | The Vanguard Group ✦ (passive) | 12.73M | -2.5% | $1.46B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 23 | The Vanguard Group ✦ (passive) | 12.73M | -2.5% | $1.46B | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 24 | Capital World Investors ✦ | 7.36M | -6.9% | $844.15M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 25 | State Street Global Advisors ✦ (passive) | 5.60M | -7.3% | $642.57M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 26 | Fidelity (FMR) ✦ | 5.07M | +3.6% | $582.39M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 27 | Fidelity (FMR) ✦ | 5.07M | +3.6% | $582.39M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 28 | Fidelity (FMR) ✦ | 5.07M | +3.6% | $582.39M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 29 | Fidelity (FMR) ✦ | 5.07M | +3.6% | $582.39M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 30 | Fidelity (FMR) ✦ | 5.07M | +3.6% | $582.39M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 31 | Fidelity (FMR) ✦ | 5.07M | +3.6% | $582.39M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 32 | Capital Research Global Investors | 3.61M | — | $414.48M | 0.1% | n/c | 1 | SEC ↗ |
| 33 | Invesco Ltd. | 3.38M | — | $388.45M | 0.0% | n/c | 1 | SEC ↗ |
| 34 | Invesco Ltd. | 3.38M | — | $388.45M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | Invesco Ltd. | 3.38M | — | $388.45M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | Invesco Ltd. | 3.38M | — | $388.45M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | Invesco Ltd. | 3.38M | — | $388.45M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | Invesco Ltd. | 3.38M | — | $388.45M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Invesco Ltd. | 3.38M | — | $388.45M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Invesco Ltd. | 3.38M | — | $388.45M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Invesco Ltd. | 3.38M | — | $388.45M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | Invesco Ltd. | 3.38M | — | $388.45M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Invesco Ltd. | 3.38M | — | $388.45M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | Invesco Ltd. | 3.38M | — | $388.45M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Geode Capital Management ✦ (passive) | 2.42M | -1.0% | $277.68M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 46 | Geode Capital Management ✦ (passive) | 2.42M | -1.0% | $277.68M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 47 | Dimensional Fund Advisors Lp | 2.13M | — | $243.99M | 0.1% | n/c | 1 | SEC ↗ |
| 48 | Dimensional Fund Advisors Lp | 2.13M | — | $243.99M | 0.1% | n/c | 1 | SEC ↗ |
| 49 | Dimensional Fund Advisors Lp | 2.13M | — | $243.99M | 0.1% | n/c | 1 | SEC ↗ |
| 50 | Dimensional Fund Advisors Lp | 2.13M | — | $243.99M | 0.1% | n/c | 1 | SEC ↗ |
| 51 | Dimensional Fund Advisors Lp | 2.13M | — | $243.99M | 0.1% | n/c | 1 | SEC ↗ |
| 52 | D. E. Shaw & Co. ✦ | 2.02M | -33.2% | $232.12M | 0.2% | ▼ Trim | 7 | SEC ↗ |
| 53 | D. E. Shaw & Co. ✦ | 2.02M | -33.2% | $232.12M | 0.2% | ▼ Trim | 7 | SEC ↗ |
| 54 | Norges Bank ✦ (passive) | 1.73M | New | $198.79M | 0.0% | New | 1 | SEC ↗ |
| 55 | American Century Companies Inc | 1.59M | — | $182.47M | 0.1% | n/c | 1 | SEC ↗ |
| 56 | Charles Schwab Investment… | 1.49M | — | $170.75M | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Morgan Stanley ✦ | 1.28M | -9.2% | $147.30M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 58 | Morgan Stanley ✦ | 1.28M | -9.2% | $147.30M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 59 | Morgan Stanley ✦ | 1.28M | -9.2% | $147.30M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 60 | Morgan Stanley ✦ | 1.28M | -9.2% | $147.30M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 61 | Morgan Stanley ✦ | 1.28M | -9.2% | $147.30M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 62 | Morgan Stanley ✦ | 1.28M | -9.2% | $147.30M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 63 | Morgan Stanley ✦ | 1.28M | -9.2% | $147.30M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 64 | Morgan Stanley ✦ | 1.28M | -9.2% | $147.30M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 65 | Morgan Stanley ✦ | 1.28M | -9.2% | $147.30M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 66 | Morgan Stanley ✦ | 1.28M | -9.2% | $147.30M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 67 | Morgan Stanley ✦ | 1.28M | -9.2% | $147.30M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 68 | Morgan Stanley ✦ | 1.28M | -9.2% | $147.30M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 69 | Morgan Stanley ✦ | 1.28M | -9.2% | $147.30M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 70 | Ameriprise Financial Inc | 1.24M | — | $142.79M | 0.0% | n/c | 1 | SEC ↗ |
| 71 | Ameriprise Financial Inc | 1.24M | — | $142.79M | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Ameriprise Financial Inc | 1.24M | — | $142.79M | 0.0% | n/c | 1 | SEC ↗ |
| 73 | Ameriprise Financial Inc | 1.24M | — | $142.79M | 0.0% | n/c | 1 | SEC ↗ |
| 74 | UBS Group AG | 1.19M | — | $136.92M | 0.0% | n/c | 1 | SEC ↗ |
| 75 | UBS Group AG | 1.19M | — | $136.92M | 0.0% | n/c | 1 | SEC ↗ |
| 76 | UBS Group AG | 1.19M | — | $136.92M | 0.0% | n/c | 1 | SEC ↗ |
| 77 | UBS Group AG | 1.19M | — | $136.92M | 0.0% | n/c | 1 | SEC ↗ |
| 78 | UBS Group AG | 1.19M | — | $136.92M | 0.0% | n/c | 1 | SEC ↗ |
| 79 | Northern Trust Corp | 1.17M | — | $134.74M | 0.0% | n/c | 1 | SEC ↗ |
| 80 | Northern Trust Corp | 1.17M | — | $134.74M | 0.0% | n/c | 1 | SEC ↗ |
| 81 | Northern Trust Corp | 1.17M | — | $134.74M | 0.0% | n/c | 1 | SEC ↗ |
| 82 | Northern Trust Corp | 1.17M | — | $134.74M | 0.0% | n/c | 1 | SEC ↗ |
| 83 | Northern Trust Corp | 1.17M | — | $134.74M | 0.0% | n/c | 1 | SEC ↗ |
| 84 | Northern Trust Corp | 1.17M | — | $134.74M | 0.0% | n/c | 1 | SEC ↗ |
| 85 | Holocene Advisors, LP | 1.07M | — | $122.99M | 0.3% | n/c | 1 | SEC ↗ |
| 86 | AQR Capital Management ✦ | 1.02M | +684.9% | $117.04M | 0.1% | ▲ Add | 7 | SEC ↗ |
| 87 | AQR Capital Management ✦ | 1.02M | +684.9% | $117.04M | 0.1% | ▲ Add | 7 | SEC ↗ |
| 88 | AQR Capital Management ✦ | 1.02M | +684.9% | $117.04M | 0.1% | ▲ Add | 7 | SEC ↗ |
| 89 | AQR Capital Management ✦ | 1.02M | +684.9% | $117.04M | 0.1% | ▲ Add | 7 | SEC ↗ |
| 90 | AQR Capital Management ✦ | 1.02M | +684.9% | $117.04M | 0.1% | ▲ Add | 7 | SEC ↗ |
| 91 | AQR Capital Management ✦ | 1.02M | +684.9% | $117.04M | 0.1% | ▲ Add | 7 | SEC ↗ |
| 92 | AQR Capital Management ✦ | 1.02M | +684.9% | $117.04M | 0.1% | ▲ Add | 7 | SEC ↗ |
| 93 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 1.01M | — | $115.68M | 0.2% | n/c | 1 | SEC ↗ |
| 94 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 1.01M | — | $115.68M | 0.2% | n/c | 1 | SEC ↗ |
| 95 | Loomis Sayles & Co L P | 935.67K | — | $107.38M | 0.1% | n/c | 1 | SEC ↗ |
| 96 | Loomis Sayles & Co L P | 935.67K | — | $107.38M | 0.1% | n/c | 1 | SEC ↗ |
| 97 | Bank of New York Mellon Corp | 912.87K | — | $104.76M | 0.0% | n/c | 1 | SEC ↗ |
| 98 | Bank of New York Mellon Corp | 912.87K | — | $104.76M | 0.0% | n/c | 1 | SEC ↗ |
| 99 | Bank of New York Mellon Corp | 912.87K | — | $104.76M | 0.0% | n/c | 1 | SEC ↗ |
| 100 | Bank of New York Mellon Corp | 912.87K | — | $104.76M | 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
| Norges Bank | $198.79M | 0.0% |
Exited
| Renaissance Technologies | $21.15M | was 0.0% |
| Bridgewater Associates | $11.10M | was 0.0% |
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.
Frequently co-owned
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)
Aug 17
Fields Kimberly A
Officer, Director · 1.00K sh · $228,320
Aug 17
Fields Kimberly A
Officer, Director · 2.00K sh · $459,120
Aug 17
Fields Kimberly A
Officer, Director · 8.13K sh · $1.88M
Aug 17
Fields Kimberly A
Officer, Director · 9.12K sh · $2.11M
Aug 17
Fields Kimberly A
Officer, Director · 4.60K sh · $1.07M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q4 2025 ·
Methodology ·
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