ATI INC

PublicCIK: 1018963
ATINYSE
Location

DALLAS, TX

13F Filings

Institutional Holders

ATI INCATI— Latest position per institution from SEC 13F filings

15

Institutional holders

133.28M

Total shares held

16.87B

Estimated value

6.66M

Avg. position size

1

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

CIK 1081019

Shares

31.22M

Value

158.40K

Filed

Jun 30, 2026

2

BLACKROCK, INC.

CIK 2012383

Shares

18.71M

Value

3.69B

Filed

Jun 30, 2026

3

BLACKROCK FINANCE, INC.

CIK 1364742

Shares

15.54M

Value

861.91M

Filed

Jun 30, 2024

4

VANGUARD GROUP INC

CIK 102909

Shares

12.73M

Value

1.46B

Filed

Dec 31, 2025

5

VANGUARD PORTFOLIO MANAGEMENT LLC

CIK 2100121

Shares

6.22M

Value

1.23B

Filed

Jun 30, 2026

6

VANGUARD CAPITAL MANAGEMENT LLC

CIK 2100119

Shares

6.16M

Value

1.21B

Filed

Jun 30, 2026

7

CAPITAL WORLD INVESTORS

CIK 1422849

Shares

5.25M

Value

1.03B

Filed

Jun 30, 2026

8

STATE STREET CORP

CIK 93751

Shares

5.24M

Value

1.03B

Filed

Jun 30, 2026

9

CAPITAL RESEARCH GLOBAL INVESTORS

CIK 1422848

Shares

5.09M

Value

1B

Filed

Jun 30, 2026

10

FMR LLC

CIK 315066

Shares

4.99M

Value

983.37M

Filed

Jun 30, 2026

11

CAPITAL INTERNATIONAL INVESTORS

CIK 1562230

Shares

3.72M

Value

733.17M

Filed

Jun 30, 2026

12

INVESCO LTD.

CIK 914208

Shares

3.45M

Value

679.86M

Filed

Jun 30, 2026

13

GEODE CAPITAL MANAGEMENT, LLC

CIK 1214717

Shares

2.78M

Value

547.58M

Filed

Jun 30, 2026

14

QUBE RESEARCH & TECHNOLOGIES LTD

CIK 1729829

Shares

2.14M

Value

422.59M

Filed

Jun 30, 2026

15

MORGAN STANLEY

CIK 895421

Shares

1.87M

Value

367.63M

Filed

Jun 30, 2026

16

BANK OF AMERICA CORP /DE/

CIK 70858

Shares

1.77M

Value

348.28M

Filed

Jun 30, 2026

17

NORGES BANK

CIK 1374170

Shares

1.74M

Value

342.93M

Filed

Jun 30, 2026

18

JANE STREET GROUP, LLC

CIK 1595888

Shares

1.70M

Value

334.80M

Filed

Jun 30, 2026

19

SIXTH STREET PARTNERS MANAGEMENT COMPANY, L.P.

CIK 1812095

Shares

1.48M

Value

292.35M

Filed

Jun 30, 2026

20

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

CIK 884546

Shares

1.48M

Value

292.35M

Filed

Jun 30, 2026

Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.