# ATI INC COM

ATI INC COM is a security (CUSIP 01741R102) tracked across SEC portfolio filings. 771 institutional managers reported $17.9B on Form 13F as of 2026-06-30; 59 registered fund positions totaling $2.8B via N-PORT as of 2026-05-31.

## Summary

- Issuer: ATI INC
- Class: COM
- CUSIP: 01741R102
- Asset category: EC
- 13F holders: 771
- 13F value: $17.9B
- 13F period: 2026-06-30
- N-PORT fund positions: 59
- N-PORT value: $2.8B
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 771 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| BlackRock, Inc. | New York, NY | $2.4B | 16,441,653 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $1.5B | 12,726,524 |
| Capital Research Global Investors | Los Angeles, CA | $896.0M | 6,160,107 |
| Capital International Investors | Los Angeles, CA | $854.9M | 5,883,949 |
| Capital World Investors | LOS ANGELES, CA | $831.0M | 5,712,929 |
| STATE STREET CORP | BOSTON, MA | $782.7M | 5,381,013 |
| FMR LLC | BOSTON, MA | $763.3M | 5,247,175 |
| [VIKING GLOBAL INVESTORS LP](https://search.stillhousedata.com/firm/132272) | STAMFORD, CT | $484.8M | 3,332,843 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $428.8M | 2,947,325 |
| [Point72 Asset Management, L.P.](https://search.stillhousedata.com/firm/283077) | Stamford, CT | $282.8M | 1,932,579 |
| D. E. Shaw & Co., Inc. | New York, NY | $254.9M | 1,742,609 |
| MORGAN STANLEY | NEW YORK, NY | $242.7M | 1,668,591 |
| JANE STREET GROUP, LLC | NEW YORK, NY | $230.2M | 1,491,263 |
| [CHARLES SCHWAB INVESTMENT MANAGEMENT INC](https://search.stillhousedata.com/firm/106753) | SAN FRANCISCO, CA | $218.5M | 1,502,129 |
| UBS Group AG | Zurich, V8 | $206.4M | 1,419,080 |

## Top fund holders (N-PORT)

_Showing 15 of 59 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [SMALLCAP World Fund Inc](https://search.stillhousedata.com/fund/S000009599) | SMALLCAP World Fund Inc | $623.9M | 76.99% |
| State Street SPDR S&P MidCap 400SM ETF Trust | SPDR S&P MIDCAP 400 ETF TRUST | $595.8M | 246.03% |
| [Growth Fund of America](https://search.stillhousedata.com/fund/S000009228) | Growth Fund of America | $291.3M | 8.07% |
| [American Balanced Fund](https://search.stillhousedata.com/fund/S000008801) | American Balanced Fund | $230.0M | 8.71% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $220.6M | 27.06% |
| [AMCAP Fund](https://search.stillhousedata.com/fund/S000008817) | AMCAP Fund | $199.2M | 20.49% |
| [Capital Group Global Growth Equity ETF](https://search.stillhousedata.com/fund/S000074250) | Capital Group Global Growth Equity ETF | $94.8M | 83.97% |
| [Capital Group Core Balanced ETF](https://search.stillhousedata.com/fund/S000080721) | Capital Group Core Balanced ETF | $69.2M | 128.16% |
| [Capital World Growth & Income Fund](https://search.stillhousedata.com/fund/S000009001) | Capital World Growth & Income Fund | $54.8M | 3.43% |
| [Fidelity Leveraged Company Stock Fund](https://search.stillhousedata.com/fund/S000007200) | Fidelity Securities Fund | $52.9M | 128.56% |
| [Fidelity Trend Fund](https://search.stillhousedata.com/fund/S000007496) | Fidelity Trend Fund | $47.5M | 114.73% |
| [Fidelity Contrafund](https://search.stillhousedata.com/fund/S000006037) | Fidelity Contrafund | $39.9M | 2.53% |
| [BlackRock Event Driven Equity Fund](https://search.stillhousedata.com/fund/S000018499) | BlackRock Large Cap Series Funds, Inc. | $28.0M | 58.61% |
| [American Funds Global Insight Fund](https://search.stillhousedata.com/fund/S000066952) | American Funds Global Insight Fund | $26.5M | 12.87% |
| [LORD ABBETT BOND DEBENTURE FUND INC](https://search.stillhousedata.com/fund/S000006820) | LORD ABBETT BOND DEBENTURE FUND INC | $25.2M | 11.02% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/01741R102.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.