CONSTELLIUM SE - Form 3 Filing for Martin Jarrett

This filing discloses information about Martin Jarrett's ownership in CONSTELLIUM SE (CSTM). As of April 1, 2026, Mr. Jarrett directly owns 20,091 ordinary shares. This total includes 9,554 ordinary shares held outright and 10,537 restricted stock units that are still subject to vesting. The filing was signed on April 9, 2026, by Kristine Carpenter, acting as attorney-in-fact for Mr. Jarrett. Mr. Jarrett holds the position of SVP Chief Innovation Officer at the company.