ATI (ATI)
Produces advanced alloys, forgings, and components for aerospace, defense, and demanding industrial applications.
$187.00
After-hours close+0.37 (+0.20%)
At close$186.63(−1.34%)
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13F · 13D/G · Form 4
| Institutions | ≈ 92.02% | 125.30M shares | |
|---|---|---|---|
| 831 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 0.93% | 1.27M shares | |
| 19 holders · as of Sep 16, 2026 | |||
| Other | ≈ 7.05% | 9.60M shares | |
| remainder | |||
136.17M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
13F, as of Jun 30, 2026
831 holders · 125.30M shares · 180 new positions · 487 increased · 223 reduced · 61 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 18.71M | 13.74% | +2.27M | Aug 7, 2026 |
| Vanguard Portfolio Management LLC | 6.22M | 4.57% | +398.4K | Aug 13, 2026 |
| Vanguard Capital Management LLC | 6.16M | 4.53% | +38.3K | Aug 13, 2026 |
| Capital World Investors | 5.25M | 3.85% | −463.7K | Aug 12, 2026 |
| State Street Corp | 5.24M | 3.85% | −143.7K | Aug 7, 2026 |
| Capital Research Global Investors | 5.09M | 3.74% | −1.07M | Aug 12, 2026 |
| FMR LLC | 4.99M | 3.66% | −258.0K | Aug 13, 2026 |
| Capital International Investors | 3.72M | 2.73% | −2.16M | Aug 12, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 10.10% | 13.89M | 13G | Oct 3, 2025 |
| Vanguard Capital Management | 5.23% | 7.15M | 13G | Apr 29, 2026 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Sep 14, 2026 | Timothy J. Harrisofficer: Senior VP and CDIO | Sale | 16,500 | $193.06 | 97,187 |
| Sep 8, 2026 | Timothy J. Harrisofficer: Senior VP and CDIO | Sale | 16,500 | $207.54 | 113,687 |
| Sep 2, 2026 | David J. Morehousedirector | Sale | 2,485 | $201.61 | 35,826 |
| Aug 31, 2026 | Timothy J. Harrisofficer: Senior VP and CDIO | Sale | 16,500 | $210.01 | 130,187 |
| Aug 24, 2026 | Timothy J. Harrisofficer: Senior VP and CDIO | Sale | 16,500 | $206.92 | 146,687 |
| Aug 17, 2026 | Kimberly A. Fieldsdirector, officer: Chair, President and CEO | Sale · 5 lots | 24,845 | $231.19 | 100,719 |
| Jul 28, 2026 | Kimberly A. Fieldsdirector, officer: Chair, President and CEO | Sale | 31,757 | $190.99 | 125,564 |
| Jul 7, 2026 | Kimberly A. Fieldsdirector, officer: Chair, President and CEO | Sale · 10 lots | 40,000 | $182.91 | 157,321 |
| Jun 24, 2026 | Kimberly A. Fieldsdirector, officer: Chair, President and CEO | Sale | 3,783 | $197.21 | 197,321 |
| Jun 23, 2026 | Kimberly A. Fieldsdirector, officer: Chair, President and CEO | Sale | 3,641 | $197.48 | 201,104 |
House and Senate disclosures
Not reported.