Welcome to our dedicated page for Constellium Se SEC filings (Ticker: CSTM), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Constellium SE filings document the reporting framework for a France-incorporated aluminum products manufacturer whose ordinary shares trade on the New York Stock Exchange under CSTM. Form 8-K reports furnish quarterly and annual operating results, investor presentations, exhibits and other material-event disclosures tied to segment performance, cash flow, leverage and capital allocation.
Proxy materials cover annual meeting matters, shareholder voting, board governance and executive compensation disclosures, including pay-versus-performance data. The filing record also documents capital-structure and governance matters such as ordinary-share registration information and board-authorized share repurchase actions.
Constellium SE insider ownership disclosure: A company officer has filed an initial statement of beneficial ownership. The reporting person, identified as the President, A&T of Constellium SE (CSTM), reports holding 135,425 ordinary shares of the company. These shares are reported as held with direct ownership. The statement is filed as a single-person filing and reflects the officer’s ownership position as of 01/01/2026.
Constellium SE reported that one of its senior officers, serving as SVP CPO, beneficially owns 15,570 ordinary shares of the company. The ownership is listed as held directly, meaning the shares are in the reporting person's own name rather than through another entity. The report is tied to an event date of 01/01/2026 and is filed by a single reporting person, identified in the signature block as Marcus Becker, with the form signed by an attorney-in-fact on his behalf.
Constellium SE director Lori A. Walker has reported her initial beneficial ownership in the company. As of the event date of 01/01/2026, she indirectly holds 36,294 ordinary shares of Constellium SE, which are owned through the Tim and Lori Walker Revocable Trust. This filing is made on behalf of Lori A. Walker by an attorney-in-fact, reflecting her position as a director and confirming her equity stake in the company.
Constellium SE executive Nicolas Brun, listed as SVP PA, Comm & Sust, has reported his initial beneficial ownership in the company. As of 01/01/2026, he directly holds 99,893 ordinary shares of Constellium SE. The filing shows no derivative securities such as options or warrants. The form is filed for a single reporting person and is signed by an attorney-in-fact on his behalf.
Constellium SE director Jean-Christophe Deslarzes filed an initial ownership report, indicating his beneficial holdings in the company. As of the event date of 01/01/2026, he beneficially owned 39,035 ordinary shares of Constellium SE, held in direct form. The filing shows no derivative securities, such as options or warrants, reported at this time.
Constellium SE director reports share holdings in a beneficial ownership statement dated 01/01/2026. The reporting person, a director of Constellium SE (CSTM), lists ownership of 97,741 ordinary shares held directly. Additional indirect holdings include 22,000 ordinary shares held by the director's spouse and 92,000 ordinary shares held through a family limited partnership. The reporting person states that beneficial ownership of the indirect holdings is disclaimed except to the extent of her pecuniary interest.
Constellium SE executive Stephen Walters filed an initial ownership report as an insider of the company. He is identified as an officer with the title SVP GC & Secretary and reports beneficial ownership of 1,500 ordinary shares of Constellium SE. The filing is made as a single reporting person and does not list any derivative securities such as options or warrants.
Constellium SE filed an initial insider ownership report for a senior executive. The Form 3 identifies an officer serving as President, P&ARP, with the reporting date of the ownership event on 01/01/2026. According to the filing, this reporting person currently holds 0 ordinary shares of Constellium SE directly and reports no derivative securities such as options or warrants. The form is filed for one reporting person and is signed by an attorney-in-fact on 01/02/2026, formally establishing this insider’s baseline ownership position with the company.
Constellium SE reported an initial ownership filing for a director as of 01/01/2026. The reporting person beneficially owns 12,500 ordinary shares, held in direct form. The filing is made on behalf of the director by an attorney-in-fact, indicating standard compliance with insider reporting rules and no derivative securities reported at this time.
Constellium SE director Wiebke Weiler filed an initial insider ownership report as of 01/01/2026. The filing shows that she beneficially owns 0 ordinary shares of Constellium SE in direct form and reports no derivative securities such as options or warrants. The document is signed by Kristine Carpenter as attorney-in-fact for Wiebke Weiler on 01/02/2026.