CSTM · Insider Trading
Constellium SE Class A Ordinary shares
Every open-market purchase and sale reported by CSTM officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-11-03 | Jean-Christophe Deslarzes | Director | Buy | +1,800 | +$42.14K |
| 2026-08-03 | Jean-Christophe Deslarzes | Director | Buy | +1,490 | +$40.59K |
| 2026-07-13 | Ingrid Joerg | CEO | F | −2,984 | −$87.37K |
| 2026-06-08 | John Ormerod | Director | Sell | −8,000 | −$280.08K |
| 2026-06-01 | Marcus Becker | SVP CPO | Sell | −10,391 | −$362.96K |
| 2026-05-18 | Martin Jarrett | SVP Chief Innovation Officer | Sell | −4,716 | −$157.80K |
| 2026-05-18 | Bradley Lee Soultz | Director | Buy | +2,500 | +$84.60K |
| 2026-05-13 | Ludovic Piquier | SVP Manuf Excellence & CTO | Sell | −1,000 | −$33.57K |
| 2026-05-12 | Nicolas Brun | SVP PA, Comm & Sust | Sell | −26,661 | −$902.47K |
| 2026-05-12 | Stephane Corre | President, AS&I | Sell | −5,000 | −$167.60K |
| 2026-05-07 | Jack Q. Guo | EVP & CFO | Sell | −25,201 | −$822.06K |
| 2026-05-07 | Michiel Brandjes | Director | Sell | −10,400 | −$325.00K |
| 2026-05-05 | Philippe Hoffmann | President, A&T | Sell | −50,000 | −$1.60M |
| 2026-05-04 | Stephane Corre | President, AS&I | Sell | −5,000 | −$160.20K |
| 2026-05-04 | Philip Ryan Jurkovic | SVP & CHRO | Sell | −48,784 | −$1.56M |
| 2026-05-01 | Jean-Christophe Deslarzes | Director | Buy | +1,325 | +$41.25K |
| 2026-03-17 | Jean-Christophe Deslarzes | Director | Buy | +1,665 | +$41.24K |
| 2026-03-17 | Marcus Becker | SVP CPO | Sell | −10,000 | −$250.90K |
| 2026-03-16 | Stephane Corre | President, AS&I | A | +7,293 | — |
| 2026-03-16 | Jack Q. Guo | EVP & CFO | A | +19,690 | — |
| 2026-03-16 | Philippe Hoffmann | President, A&T | A | +12,033 | — |
| 2026-03-16 | Stephen Charles Walters | SVP GC & Secretary | A | +5,834 | — |
| 2026-03-16 | Ingrid Joerg | CEO | A | +31,358 | — |
| 2026-03-16 | Matthew B. Perkins | President, P&ARP | A | +10,210 | — |
| 2026-03-16 | Nicolas Brun | SVP PA, Comm & Sust | A | +4,376 | — |
| 2026-03-16 | Marcus Becker | SVP CPO | A | +3,938 | — |
| 2026-03-16 | Niklaus Schild | SVP CIO & CDO | A | +3,355 | — |
| 2026-03-16 | Ludovic Piquier | SVP Manuf Excellence & CTO | A | +5,469 | — |
| 2026-03-16 | Wiebke Weiler | Director | A | +625 | — |
| 2026-03-16 | Philip Ryan Jurkovic | SVP & CHRO | A | +10,210 | — |
| 2026-03-12 | Stephane Corre | President, AS&I | Sell | −1,500 | −$38.84K |
| 2026-03-11 | Ludovic Piquier | SVP Manuf Excellence & CTO | A | +30,350 | — |
| 2026-03-11 | Stephane Corre | President, AS&I | Buy | +8,026 | — |
| 2026-03-11 | Ingrid Joerg | CEO | MIXED | +66,518 | −$119.36K |
| 2026-03-11 | Jack Q. Guo | EVP & CFO | MIXED | +34,157 | −$1.08M |
| 2026-03-11 | Nicolas Brun | SVP PA, Comm & Sust | MIXED | +6,009 | −$436.68K |
| 2026-03-11 | Niklaus Schild | SVP CIO & CDO | A | +5,106 | — |
| 2026-03-11 | Philippe Hoffmann | President, A&T | MIXED | +66,404 | −$122.31K |
| 2026-03-11 | Philip Ryan Jurkovic | SVP & CHRO | MIXED | +29,376 | −$773.51K |
| 2026-03-11 | Marcus Becker | SVP CPO | MIXED | +13,479 | −$28.79K |
| 2026-03-06 | Philippe Hoffmann | President, A&T | Sell | −80,000 | −$2.12M |
| 2026-03-03 | Stephane Corre | President, AS&I | Sell | −3,000 | −$74.07K |
| 2026-02-27 | Isabelle Boccon-Gibod | Director | Sell | −10,000 | −$257.70K |
| 2026-02-27 | Stephane Corre | President, AS&I | Sell | −3,200 | −$82.26K |
| 2026-02-24 | Marcus Becker | SVP CPO | Sell | −15,570 | −$398.27K |
| 2026-02-24 | Stephen Charles Walters | SVP GC & Secretary | Sell | −1,500 | −$38.09K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Ingrid Joerg | CEO | 406,464 | $8.86M |
| Ludovic Piquier | SVP Manuf Excellence & CTO | 241,713 | $5.27M |
| Jack Q. Guo | EVP & CFO | 185,368 | $4.04M |
| Philip Ryan Jurkovic | SVP & CHRO | 172,149 | $3.75M |
| Philippe Hoffmann | President, A&T | 144,153 | $3.14M |
| Nicolas Brun | SVP PA, Comm & Sust | 104,891 | $2.29M |
| Stephane Corre | President, AS&I | 62,313 | $1.36M |
| Jean-Christophe Deslarzes | Director | 45,315 | $988.32K |
| Michiel Brandjes | Director | 41,600 | $907.30K |
| Niklaus Schild | SVP CIO & CDO | 38,703 | $844.11K |
| Matthew B. Perkins | President, P&ARP | 33,212 | $724.35K |
| Stephen Charles Walters | SVP GC & Secretary | 25,068 | $546.73K |
| John Ormerod | Director | 24,873 | $542.48K |
| Isabelle Boccon-Gibod | Director | 23,000 | $501.63K |
| Marcus Becker | SVP CPO | 16,784 | $366.06K |
| Martin Jarrett | SVP Chief Innovation Officer | 15,375 | $335.33K |
| Bradley Lee Soultz | Director | 15,000 | $327.15K |
| Wiebke Weiler | Director | 625 | $13.63K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the CSTM quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.