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 submitted a Form 144 notice concerning the proposed sale of 80,000 Class A common shares, listed with J.P. Morgan Securities LLC as the broker-dealer on 03/04/2026. The filing also lists multiple equity-compensation lots (RSUs and PSUs) with discrete share counts dated between 05/25/2021 and 03/10/2025, including examples of 11,246 (RSU, 05/25/2021) and 6,212 (PSU, 05/25/2021).
Constellium SE executive Stephane Corre, President of AS&I, reported an open-market sale of 3,000 ordinary shares on February 27, 2026 at a weighted average price of $24.69 per share, executed in multiple trades between $24.67 and $24.72. After these transactions, Corre directly owns 44,444 ordinary shares.
Constellium SE-related insider reported proposed sales of Class A shares totaling 6,000 shares by Stephane Corre.
The filing lists four sales dated 11/25/2025 (800 shares), 11/26/2025 (1,000), 12/01/2025 (1,000) and 02/25/2026 (3,200). Each sale row shows an associated numeric value alongside the share counts consistent with reported trade entries.
Constellium SE director Isabelle Boccon-Gibod reported an open-market sale of 10,000 ordinary shares. The sale took place on February 26, 2026 at a weighted average price of $25.77 per share, executed through multiple transactions at that price. After this sale, she directly owns 23,000 ordinary shares of Constellium SE.
CONSTELLIUM SE executive Stephane Corre sold 3,200 ordinary shares in an open-market transaction. The shares were sold on February 25, 2026 at a weighted average price of $25.7068 per share, leaving him with 47,444 ordinary shares held directly after the sale.
Constellium SE submitted a Rule 144 notice reporting the resale of 3,200 shares of Common Stock on 02/25/2026 through J.P. Morgan Securities LLC.
The filing lists the securities as issued under a PSU Issuance dated 05/21/2021 and shows prior reported Class A share sales by Stephane Corre during late 2025.
Constellium SE files its annual report, outlining a global aluminum products business focused on aerospace, packaging, automotive and industrial end-markets. The company operates 24 manufacturing facilities, three R&D centers and three administrative centers, and emphasizes high value-added rolled and extruded aluminum solutions.
Constellium reports aggregate market value of ordinary shares held by non‑affiliates of about $1.8 billion as of June 30, 2025, and 135,069,771 ordinary shares outstanding on January 30, 2026. The report details three operating segments, a strategy centered on premium, recyclable products, major sustainability and R&D efforts, global supply and customer concentration, and extensive risk factors ranging from competition and raw material volatility to climate, regulatory, financial and geopolitical exposures.
CSTM files a Form 144 reporting proposed sales of ordinary shares. The excerpt lists proposed disposals of restricted and performance ordinary shares dated 05/11/2024 and 03/10/2025 with line-item quantities of 1,211, 5,570, 5,361 and 3,428.
Constellium SE senior vice president and chief production officer Marcus Becker reported an open-market sale of company stock. On February 20, 2026, he sold 15,570 ordinary shares of Constellium SE at a weighted average price of $25.5793 per share, in transactions described as occurring within that same price level. After this sale, his directly held ordinary shares reported in this filing were reduced to zero.