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 filed an amended Form 3 for President, AS&I Stephane Corre to update his reported holdings. As of January 1, 2026, he beneficially owns 64,694 ordinary shares in total.
This amount consists of 50,644 ordinary shares held directly and 14,050 restricted stock units that remain subject to vesting restrictions. The amendment explains these RSUs were inadvertently omitted from Corre’s original Form 3 and from two Form 4 filings submitted before this amendment, so the change reflects a correction to previously reported ownership rather than a new transaction.
Constellium SE senior vice president Nicolas Brun filed an amended insider ownership report showing he holds 121,167 ordinary shares. This total consists of 99,893 ordinary shares held as of January 1, 2026 and 21,274 restricted stock units that are still subject to vesting and were previously omitted from his original ownership filing.
Constellium SE reports proposed insider sale notice under Form 144 by Stephane Corre. The filing lists 1,500 shares of Common Stock tied to an RSU issuance with an allocation date of 04/01/2022 and an offer date of 03/04/2026. The filing also lists prior dispositions: 1,000 shares on 12/01/2025 (proceeds 16900), 3,200 shares on 02/25/2026 (proceeds 82260), and 3,000 shares on 02/27/2026 (proceeds 74066).
Constellium SE files a Form 144 notice concerning proposed sales of Common Stock reported through broker J.P. Morgan Securities LLC. The filing lists 29,900 shares with an aggregate value of $773,606.65 and a reference number 135,069,771 dated 03/10/2026.
The excerpt also shows equity compensation activity on 03/09/2026: a PSU issuance of 59,276 shares and an RSU issuance of 15,119. The entries are presented as securities to be sold or issued on the dates shown.
Constellium SE submitted a Form 144 reporting a proposed sale of Common Stock, filed with J.P. Morgan Securities LLC as broker and dated 03/10/2026. The filing lists equity compensation items dated 03/09/2026: a PSU issuance of 75,874 and an RSU issuance of 19,352.
The notice identifies the broker and the equity awards by type and date; cash‑flow treatment and exact sale mechanics are not detailed in the excerpt.
Constellium SE submitted a Form 144 excerpt concerning Common Stock activity. The excerpt lists a PSU issuance of 31,132 shares and an RSU issuance of 18,143 shares, both dated 03/09/2026. The filing references J.P. Morgan Securities LLC and the NYSE; the form date shown is 03/10/2026.
Constellium SE submitted a Form 144 reporting proposed sales of Common Stock and disclosing recent equity compensation activity. The filing lists 71,132 shares tied to a PSU issuance and 18,143 shares tied to RSU issuance, both dated 03/09/2026. It also records a sale of 80,000 Class A shares on 03/04/2026 with proceeds of $2,115,512.55.
Constellium SE submitted a Rule 144 notice reporting proposed sales of Common Stock related to equity compensation. The filing lists 14,592 shares from a PSU issuance and 6,912 shares from an RSU issuance, both dated 03/09/2026. The form also records a sale of 15,570 Class A shares by Marcus Becker on 02/20/2026 for $398,269.75.
Constellium SE submitted a Form 144 notice related to Common Stock, using J.P. Morgan Securities LLC as broker on 03/09/2026.
The filing lists equity compensation entries with share counts: 7,106 (RSU issuance, 07/31/2020), 4,842 (RSU issuance, 03/10/2025) and 5,753 (PSU issuance, 03/10/2025), each shown with an as of 03/06/2026 date. The excerpt also shows 137,801,779 shares outstanding as of 03/09/2026.
Constellium SE executive Philippe Hoffmann, President A&T, reported selling a total of 80,000 ordinary shares in two open-market transactions on March 4, 2026. One sale covered 50,000 shares at a weighted average price of $26.03, and another covered 30,000 shares at a weighted average price of $27.14. After these sales, he directly owned 55,425 ordinary shares.