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Constellium SE (CSTM) is a non-energy raw materials company in the aluminum materials production industry, based in Paris, France, with about 11,500 full-time employees.
It reported revenue of $8.45 billion for fiscal year 2025, up 15.2% from fiscal year 2024, and net income of $273.00 million. In Q1 2026 (the quarter ended March 31, 2026) revenue was $2.46 billion, up 24.4% from a year before. Its largest business segment, Packaging and Automotive Rolled Products, brought in 59% of segment revenue in fiscal year 2025; United States was the largest region with 39%. Its market capitalization was $3.50 billion as of October 9, 2026.
Figures from company filings and market data; latest fiscal year ended December 31, 2025; market data as of October 9, 2026.
Constellium SE, together with its subsidiaries, engages in the design, manufacture, and sale of rolled and extruded aluminum products for the aerospace, packaging, automotive, commercial transportation, general industrial, and defense end-markets.
Constellium reported $8.45 billion in revenue for fiscal year 2025, up 15.2% from $7.34 billion in fiscal year 2024. In Q1 2026 revenue was $2.46 billion.
Packaging and Automotive Rolled Products, with 5.08 billion EUR or 59% of segment revenue in fiscal year 2025. Next: Aerospace and Transportation (23%) and Automotive Structures and Industry (18%).
United States: 39% of revenue by region in fiscal year 2025, followed by ALL Other (19%).
$3.50 billion as of October 9, 2026.
Listed companies of a similar size in the same industry (aluminum materials production) include Alcoa Corporation (AA), Century Aluminum Company (CENX), Kaiser Aluminum Corporation (KALU), Tredegar Corporation (TG).