Who owns ATI INC?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of ATI from SEC Form 13F filings across 789 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 789 institutions disclosed 127.5M shares of ATI INC worth $25.05B — about 93.6% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
789
13F holders
$25.05B
value, 2026 filers
93.6%
of shares outstanding (127.5M sh)
185
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of ATI's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 18.7M | $3.69B | 0.1% | 13.7% | +13.8% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 6.2M | $1.23B | 0.1% | 4.6% | +6.8% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 6.2M | $1.21B | 0.0% | 4.5% | +0.6% |
| 4 | Capital World Investors | 5.2M | $1.03B | 0.1% | 3.9% | -8.1% |
| 5 | STATE STREET CORP | 5.2M | $1.03B | 0.0% | 3.8% | -2.7% |
| 6 | Capital Research Global Investors | 5.1M | $1.00B | 0.1% | 3.7% | -17.3% |
| 7 | FMR LLC | 5.0M | $983.4M | 0.0% | 3.7% | -4.9% |
| 8 | Capital International Investors | 3.7M | $733.2M | 0.2% | 2.7% | -36.8% |
| 9 | Invesco Ltd. | 3.4M | $679.9M | 0.1% | 2.5% | -10.5% |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 2.8M | $547.6M | 0.0% | 2% | -5.8% |
| 11 | Qube Research & Technologies Ltd | 2.1M | $422.6M | 0.4% | 1.6% | +149.6% |
| 12 | MORGAN STANLEY | 1.9M | $367.6M | 0.0% | 1.4% | +11.8% |
| 13 | BANK OF AMERICA CORP /DE/ | 1.8M | $348.3M | 0.0% | 1.3% | +29.5% |
| 14 | NORGES BANKNEW | 1.7M | $342.9M | 0.0% | 1.3% | new |
| 15 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.5M | $292.3M | 0.0% | 1.1% | -1.3% |
| 16 | AQR CAPITAL MANAGEMENT LLC | 1.4M | $282.4M | 0.1% | 1.1% | +17.2% |
| 17 | JANE STREET GROUP, LLC | 1.4M | $278.1M | 0.0% | 1% | -5.4% |
| 18 | NORTHERN TRUST CORP | 1.3M | $254.0M | 0.0% | 0.9% | +4.0% |
| 19 | Point72 Asset Management, L.P. | 1.2M | $244.5M | 0.3% | 0.9% | -35.8% |
| 20 | DIMENSIONAL FUND ADVISORS LP | 1.2M | $228.7M | 0.0% | 0.9% | -15.1% |
| 21 | VIKING GLOBAL INVESTORS LP | 1.2M | $227.4M | 0.6% | 0.8% | -65.4% |
| 22 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 1.1M | $220.9M | 0.3% | 0.8% | +8.5% |
| 23 | BOWEN HANES & CO INC | 1.0M | $151.7M | 3.7% | 0.8% | 0.0% |
| 24 | PRICE T ROWE ASSOCIATES INC /MD/ | 1.0M | $201.4M | 0.0% | 0.7% | +210.8% |
| 25 | DENDUR CAPITAL LP | 1.0M | $198.9M | 10.4% | 0.7% | -21.4% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.