201 ISABELLA STREET, PITTSBURGH, PA
Reports Third Quarter 2025 Results
Material disclosure
Reports Second Quarter 2025 Results
Announces Closing of Ma’aden Transaction
Shareholder votes
Welcomes Australian Tax Decision
Reports First Quarter 2025 Results
Form Joint Venture to Support Future of San Ciprián Operations
Q3
Q2
Q1
FY 2023
Registration Statement for Securities to be Offered to Employees
Prospectus filed pursuant to Rule 424(b)(3)
Effectiveness Notice
Amended Registration Statement for Securities
S-1
Additional Proxy Materials
Definitive Proxy Statement
Statement of Changes in Beneficial Ownership
Annual Report of Employee Stock Purchase
Specialized Disclosure Report