🕵️ Constellium SE ($CSTM)
SEC insider & ownership activity, last 12 months · CIK 1563411 · every row links its SEC filing
Insider sell value was withheld pending verification over the last 12 months. BlackRock, Inc. added 5.0% → 5.8%. No red-flag 8-Ks in the window.
Insider flow
2 buyers, $208K (4 lots) · 13 sellers, value withheld pending verification (26 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Philippe Hoffmann | 0 | – | 4 | $3.8M | May 1, 2026 |
| Ryan Jurkovic | 0 | – | 2 | $2.3M | May 1, 2026 |
| Jack Guo | 0 | – | 2 | $1.9M | May 5, 2026 |
| Nicolas Brun | 0 | – | 2 | $1.3M | May 11, 2026 |
| Becker Marcus | 0 | – | 4 | value withheld pending verification | May 28, 2026 |
| Stephane Corre | 0 | – | 5 | $523K | May 8, 2026 |
| Brandjes Michiel | 0 | – | 1 | $325K | May 5, 2026 |
| Ormerod John | 0 | – | 1 | $280K | Jun 4, 2026 |
| Boccon-Gibod Isabelle | 0 | – | 1 | $258K | Feb 26, 2026 |
| Martin Roy Jarrett | 0 | – | 1 | $158K | May 14, 2026 |
| Deslarzes Jean-Christophe | 3 | $123K | 0 | – | Aug 3, 2026 |
| Ingrid Joerg | 0 | – | 1 | $119K | Mar 10, 2026 |
| Soultz Bradley Lee | 1 | $85K | 0 | – | May 14, 2026 |
| Walters Stephen Charles | 0 | – | 1 | $38K | Feb 23, 2026 |
| Piquier Ludovic | 0 | – | 1 | $34K | May 12, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Caisse DES Depots (CDC) | 6.2% | 13D | May 26, 2026 | filing ↗ | |
| Bpifrance Participations S.a. | 6.2% | 13D | May 26, 2026 | filing ↗ | |
| Bpifrance S.a. | 6.2% | 13D | May 26, 2026 | filing ↗ | |
| Epic Bpifrance | 6.2% | 13D | May 26, 2026 | filing ↗ | |
| BlackRock, Inc. | 5.8% | 13G | Jul 17, 2025 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Ormerod John | $278K | Jun 4, 2026 | filing ↗ |
| Marcus Becker | $363K | May 28, 2026 | filing ↗ |
| Bpifrance Participations Sa | $69.6M | May 26, 2026 | filing ↗ |
| Bpifrance Participations Sa | $69.6M | May 26, 2026 | filing ↗ |
| Martin Roy Jarrett | $158K | May 14, 2026 | filing ↗ |
| Nicolas Brun | $903K | May 11, 2026 | filing ↗ |
| Stephane Corre | $168K | May 8, 2026 | filing ↗ |
| Jack Guo | $822K | May 5, 2026 | filing ↗ |
| Brandjes Michiel | $336K | May 5, 2026 | filing ↗ |
| Philippe Hoffmann | $1.6M | May 1, 2026 | filing ↗ |
| Stephane Corre | $160K | May 1, 2026 | filing ↗ |
| Ryan Jurkovic | $1.6M | May 1, 2026 | filing ↗ |
| Marcus Becker | $251K | Mar 16, 2026 | filing ↗ |
| Stephane Corre | $39K | Mar 10, 2026 | filing ↗ |
| Ryan Jurkovic | $774K | Mar 10, 2026 | filing ↗ |
| Jack Guo | $1.1M | Mar 10, 2026 | filing ↗ |
| Ingrid Joerg | $119K | Mar 10, 2026 | filing ↗ |
| Philippe Hoffmann | $122K | Mar 10, 2026 | filing ↗ |
| Marcus Becker | $29K | Mar 10, 2026 | filing ↗ |
| Nicolas Brun | $437K | Mar 9, 2026 | filing ↗ |
| Philippe Hoffmann | $2.1M | Mar 4, 2026 | filing ↗ |
| Stephane Corre | $74K | Feb 27, 2026 | filing ↗ |
| Stephane Corre | $82K | Feb 25, 2026 | filing ↗ |
| Boccon-Gibod Isabelle | $258K | Feb 25, 2026 | filing ↗ |
| Becker Marcus | $26 | Feb 20, 2026 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Jul 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 29, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 21, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 21, 2026 | filing ↗ |
| Earnings (2.02) | Apr 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 29, 2026 | filing ↗ |
| Other events (8.01) | Mar 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 12, 2026 | filing ↗ |
| Earnings (2.02) | Feb 18, 2026 | filing ↗ |
| Earnings (2.02) | Oct 29, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 29, 2025 | filing ↗ |
| Officer/director changes (5.02) | Oct 29, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Oct 29, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 29, 2025 | filing ↗ |