ATI

ATI INC

Steel Pipe & Tubes · SIC 3317CIK 1018963Held by 9 tracked managersEDGAR filings ↗10-K/10-Q ↗

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9 managers · Q2 2026 13F

13F bookWeight

Polen Capital Management

PolenPosition history →

1.4%

NEW

$0.16B

$11.61B13F book · 2026-06-30

Viking Global Investors

Andreas HalvorsenPosition history →

0.65%

(65.4%)

$0.23B

$35.08B13F book · 2026-06-30

Holocene Advisors

Holocene AdvisorsPosition history →

0.22%

(54.7%)

$0.10B

$43.69B13F book · 2026-06-30

Soros Fund Management

Soros family officePosition history →

0.19%

+38.8%

$0.01B

$7.62B13F book · 2026-06-30

Royce & Associates

Royce & AssociatesPosition history →

0.14%

(9.2%)

$0.02B

$12.42B13F book · 2026-06-30

Capital Research Global Investors

Capital Research Global InvestorsPosition history →

0.14%

(17.3%)

$1.00B

$716.87B13F book · 2026-06-30

Capital World Investors

Capital World InvestorsPosition history →

0.12%

(8.1%)

$1.03B

$846.43B13F book · 2026-06-30

Bridgewater Associates

Bridgewater AssociatesPosition history →

0.09%

+423.6%

$0.02B

$24.38B13F book · 2026-06-30

ARK Investment Management

ARK Investment ManagementPosition history →

<0.01%

(28.3%)

$<0.01B

$15.40B13F book · 2026-06-30

Weight = position value ÷ the manager's total 13F long-equity value in the same filing — one definition for every row. “1st obs.” marks a position with no earlier stored 13F to compare against — it is not shown as a purchase.