CSTM Insider Trading Activity and SEC Form 4 Filings
CSTM insider trading summary
Over the past 12 months, insiders at Constellium SE (CSTM) reported 19 sales worth $9.5M by 11 insiders and 4 open-market purchases worth $165K by 1 insider on SEC Form 4. Net insider selling was $9.3M.
Latest CSTM insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Nov 2, 2026 | Jean-Christophe Deslarzes | Director | Buy | $42K (1,800 @ $23.41) |
| Aug 3, 2026 | Jean-Christophe Deslarzes | Director | Buy | $41K (1,490 @ $27.24) |
| Jun 4, 2026 | John Ormerod | Director | Sell | $280K (8,000 @ $35.01) |
| May 28, 2026 | Marcus Becker | SVP CPO | Sell | $363K (10,391 @ $34.93) |
| May 12, 2026 | Ludovic Piquier | SVP Manuf Excellence & CTO | Sell | $34K (1,000 @ $33.57) |
| May 11, 2026 | Nicolas Brun | SVP PA, Comm & Sust | Sell | $902K (26,661 @ $33.85) |
| May 8, 2026 | Stephane Corre | President, AS&I | Sell | $168K (5,000 @ $33.52) |
| May 5, 2026 | Michiel Brandjes | Director | Sell | $325K (10,400 @ $31.25) |
| May 5, 2026 | Jack Q. Guo | EVP & CFO | Sell | $822K (25,201 @ $32.62) |
| May 1, 2026 | Jean-Christophe Deslarzes | Director | Buy | $41K (1,325 @ $31.13) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.