CONSTELLIUM SE (CSTM)

NYSE · Metals & Fabrication · Secondary Smelting & Refining of Nonferrous Metals

Price
$25.33
Day
-0.67%

Close 2026-09-22.

The company

Overview We are a global leader in the development, manufacture and sale of a broad range of high value-added specialty rolled and extruded aluminum products to the aerospace, space, defense, packaging, automotive, commercial transportation and general industrial end-markets. Our business model is to add value by converting aluminum into semi-fabricated and in some instances fully-fabricated alloyed aluminum products which meet stringent and performance-critical requirements from our customers. Our product portfolio generally commands higher margins as compared to less differentiated, more commoditized aluminum products. Our business model aims to pass through aluminum price exposure by pricing our products to include the cost of the metal purchased and hedging any remaining exposure to achieve aluminum price neutrality. At December 31, 2025 , we have 24 manufacturing facilities, 3 Research and Development ( “R&D” ) centers, and 3 administrative centers. Our portfolio of flexible, integrated and strategically located facilities is well invested, technologically advanced and competitively positioned. We believe that we are a critical supplier to many of our customers given our world- class technological and R&D capabilities, our intellectual property and more than 50 years of manufacturing experience. Many of our products are technically advanced, requiring long and complex qualification processes as well as the need for close customer collaborations including joint product development.

From Item 1: Overview.

Institutional holders

Largest positions reported on Form 13F for the quarter ended 2026-06-30, by value.

Insider trades

Open-market buys and sales filed on Form 4, newest first. Grants, option exercises and tax withholding are left out.

Recent filings