Constellium SE (NYSE: CSTM) insider transactions
In the twelve months to 10 November 2026, executives and directors of Constellium SE reported 26 open-market sales of 419,696 shares ($12.2m) and 8 open-market purchases of 102,530 shares ($249,815), by 15 people, according to the Form 4 filings they submitted to the SEC.
Latest transactions
| Date | Insider | Role | Transaction | Shares | Price | Held after | Filing |
|---|---|---|---|---|---|---|---|
| 2 November 2026 | Deslarzes Jean-Christophe | Director | Open-market purchase | +1,800 | $23.41 | 45,315 | Form 4 |
| 3 August 2026 | Deslarzes Jean-Christophe | Director | Open-market purchase | +1,490 | $27.24 | 43,515 | Form 4 |
| 10 July 2026 | Joerg Ingrid | CEO | Shares withheld for tax | −2,984 | $29.28 | 406,464 | Form 4 |
| 4 June 2026 | Ormerod John | Director | Open-market sale | −8,000 | $35.01 | 24,873 | Form 4 |
| 28 May 2026 | Becker Marcus | SVP Cpo | Open-market sale | −10,391 | $34.93 | 16,784 | Form 4 |
| 14 May 2026 | Soultz Bradley Lee | Director | Open-market purchase | +2,500 | $33.84 | 2,500 | Form 4 |
| 14 May 2026 | Jarrett Martin | SVP Chief Innovation Officer | Open-market sale | −4,716 | $33.46 | 15,375 | Form 4 |
| 12 May 2026 | Piquier Ludovic | SVP Manuf Excellence & CTO | Open-market sale | −1,000 | $33.57 | 241,713 | Form 4 |
| 11 May 2026 | Brun Nicolas | SVP PA, Comm & Sust | Open-market sale | −26,661 | $33.85 | 104,891 | Form 4 |
| 8 May 2026 | Corre Stephane | President, AS&I | Open-market sale | −5,000 | $33.52 | 62,313 | Form 4 |
| 5 May 2026 | Brandjes Michiel | Director | Open-market sale | −10,400 | $31.25 | 41,600 | Form 4 |
| 5 May 2026 | Guo Jack Q. | EVP & CFO | Open-market sale | −25,201 | $32.62 | 185,368 | Form 4 |
| 1 May 2026 | Hoffmann Philippe | President, A&T | Open-market sale | −50,000 | $31.92 | 144,153 | Form 4 |
| 1 May 2026 | Corre Stephane | President, AS&I | Open-market sale | −5,000 | $32.04 | 67,313 | Form 4 |
| 1 May 2026 | Jurkovic Philip Ryan | SVP & Chro | Open-market sale | −48,784 | $32.01 | 172,149 | Form 4 |
| 1 May 2026 | Deslarzes Jean-Christophe | Director | Open-market purchase | +1,325 | $31.13 | 42,025 | Form 4 |
| 16 March 2026 | Becker Marcus | SVP Cpo | Open-market sale | −10,000 | $25.09 | 27,175 | Form 4 |
| 12 March 2026 | Guo Jack Q. | EVP & CFO | Grant or award | +19,690 | — | 210,569 | Form 4 |
| 12 March 2026 | Corre Stephane | President, AS&I | Grant or award | +7,293 | — | 72,313 | Form 4 |
| 12 March 2026 | Hoffmann Philippe | President, A&T | Grant or award | +12,033 | — | 194,153 | Form 4 |
Names appear as in the filing, surname first. A dash in the price column means the filing reports none, as in grants and gifts.
How to read the table
Only open-market purchases and sales are trades the insider chose to make at the market price, and they are the ones counted in the summary above. Grants, option exercises and shares withheld for tax come from pay plans. A sale marked as a 10b5-1 plan was scheduled in advance under a written plan.
Where each row comes from
From the Form 4 that each executive, director or large shareholder must file with the SEC within two business days of a transaction, read up to 10 November 2026. Each row links to its filing on EDGAR. Only transactions in shares are listed, not derivatives, and amended filings are left out. The accounts of the company are on the Constellium SE page; the method, in data sources.
Information prepared from the Form 4 filings submitted to the SEC, for information purposes only. It is not financial advice or a recommendation to buy or sell. Updated on 12 November 2026.