Boccon-Gibod Isabelle 4

What Happened Isabelle Boccon-Gibod, a director of Constellium SE (CSTM), sold 10,000 shares on February 26, 2026. The shares were disposed at a weighted average price of $25.77 per share, generating total proceeds of approximately $257,700. The filing reports the transaction as a sale (transaction code S).

Key Details

• Transaction date: 2026-02-26; Price: $25.77 (weighted average); Shares sold: 10,000; Proceeds: ~$257,700.
• Sale type reported as "open market or private sale" (Form 4 indicates open-market/private).
• Footnote: the reported price is a weighted average and the shares were sold in multiple transactions at prices ranging from $25.77 to $25.77; the reporting person will provide a per-price breakdown on request.
• Filing date: 2026-02-27 (filed the day after the transaction) — appears timely.
• Shares owned after the transaction: Not specified in the provided filing details.

Context This was a straight sale of existing shares by a company director (not an option exercise or gift). Sales by insiders can be routine (liquidity, portfolio management) and do not, by themselves, indicate management’s view of the company’s prospects.