Companies / ATI Inc
ATI Inc
Financials · FY2025
Ownership
136.2M shares outstanding · as of Aug 3, 2026
Ownership
| Insiders | 0.75% | 1,026,742 |
| 10%+ / strategic | 5.25% | 7,145,445 |
| Institutions | 101.35% | 138,005,835 |
| Public float | 0.00% | 0 |
Reported holdings exceed shares outstanding — public float shown as 0; some positions may overlap or lag.
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 15
View all →| Insider | % of shares | Shares |
|---|---|---|
Wetherbee Robert SExecutive Chairman · Director | 0.21% | 280,061 |
Fields Kimberly ACEOChair, President and CEO · Director | 0.14% | 197,321 |
Harris Timothy JSenior VP and CDIO | 0.12% | 163,187 |
Corvi CarolynDirector | 0.05% | 71,146 |
Bhatia Vaishali S.SVP, General Counsel and CCO | 0.04% | 58,420 |
Foster James RobertSVP, Finance and CFO | 0.04% | 57,987 |
Morehouse David JDirector | 0.03% | 38,311 |
Carlisle Herbert JDirector | 0.03% | 37,556 |
Kah MarianneDirector | 0.03% | 35,075 |
Hess David PDirector | 0.03% | 34,945 |
Institutional holders 591
View all →| Holder | Value | % of shares |
|---|---|---|
| $3.69B | 13.74% | |
| $1.96B | 12.55% | |
| $1.46B | 9.35% | |
| $1.03B | 3.85% | |
| $844.15M | 5.40% | |
| $582.39M | 3.73% | |
| $484.80M | 2.45% | |
| $428.81M | 2.16% | |
| $414.48M | 2.65% | |
| $388.45M | 2.49% |
Activity
InsidersInstitutions
What insiders are doing in this stock (Form 4).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Jan 5, 2026 | Wetherbee Robert S Executive | Other | Common Stock, par value $0.10 per share | $8.83M | -73K -15.23% | 405,644 0.30% of shares | low |
| Jan 5, 2026 | Wetherbee Robert S Executive | Other | Common Stock, par value $0.10 per share | $8.40M | -69K -19.13% | 293,275 0.22% of shares | low |
| Jan 5, 2026 | Fields Kimberly A CEO | Other | Common Stock, par value $0.10 per share | $4.71M | -39K -12.39% | 274,927 0.20% of shares | low |
| Jun 2, 2026 | Fields Kimberly A CEO | Sell | Common Stock, par value $0.10 per share | $4.60M | -26K -9.30% | 251,940 0.19% of shares | medium |
| Feb 17, 2026 | Wetherbee Robert S Executive | Sell | Common Stock, par value $0.10 per share | $4.20M | +29K +11.43% | 280,061 0.21% of shares | medium |
| Jan 5, 2026 | Fields Kimberly A CEO | Other | Common Stock, par value $0.10 per share | $3.92M | -32K -9.06% | 324,791 0.24% of shares | low |
| Jan 5, 2026 | Harris Timothy J Executive | Other | Common Stock, par value $0.10 per share | $3.74M | -31K -18.04% | 140,511 0.10% of shares | low |
| Jun 22, 2026 | Fields Kimberly A CEO | Sell | Common Stock, par value $0.10 per share | $2.69M | -13K -6.09% | 204,745 0.15% of shares | medium |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Vanguard Group Inc | Passive13G/A | — |
| Capital International Investors | Passive13G/A | — |
| Capital World Investors | Passive13G/A | — |
| Vanguard Capital Management | Passive13G | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| ATI | — | 01741R102 |