CONSTELLIUM SE (CSTM)
$26.98-$0.43 (-1.57%) Today
Jean-Christophe Deslarzes - Director
Martin Jarrett - Officer
Ludovic Piquier - OfficerConstellium SE is engaged in the development, manufacture and sale of a broad range of high value-added specialty rolled and extruded aluminum products to the aerospace, space, defense, packaging, automotive, commercial transportation and general industrial end-markets. Its business model is to add value by converting aluminum into semi-fabricated and, in some instances, fully-fabricated alloyed aluminum products that meet stringent and performance-critical requirements from customers. It operates through three segments: Aerospace & Transportation Operating Segment, Packaging & Automotive Rolled Products Operating Segment, and Automotive Structures & Industry Operating Segment. It serves Aerospace, Packaging and Automotive and operates in the United States, France, Germany and others.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market purchase | 1 | 1,490 | $41K |
| Open-market sale | 1 | 8,000 | $280K |
| Tax withholding / forfeiture | 1 | 2,984 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
45 Form 4 filings on record, the earliest from Feb 24, 2026, newest first. Filing history page 1 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jean-Christophe Deslarzes - Director | Open-market purchase | Ordinary shares | 1,490 | $27.24 | $41K | |
 Ingrid Joerg - Officer | Tax withholding / forfeiture | Ordinary shares | 2,984 | $29.28 | $87K | |
| John Ormerod - Director | Open-market sale | Ordinary shares | 8,000 | $35.01 | $280K | |
| Marcus Becker - Officer | Open-market sale | Ordinary shares | 10,391 | $34.93 | $363K | |
| Bradley Lee Soultz - Director | Open-market purchase | Ordinary shares | 2,500 | $33.84 | $85K | |
| Martin Jarrett - Officer | Open-market sale | Ordinary shares | 4,716 | $33.46 | $158K | |
| Ludovic Piquier - Officer | Open-market sale | Ordinary shares | 1,000 | $33.57 | $34K | |
| Nicolas Brun - Officer | Open-market sale | Ordinary shares | 26,661 | $33.85 | $902K | |
| Stephane Corre - Officer | Open-market sale | Ordinary shares | 5,000 | $33.52 | $168K | |
 Michiel Brandjes - Director | Open-market sale | Ordinary shares | 10,400 | $31.25 | $325K | |
| Jack Q. Guo - Officer | Open-market sale | Ordinary shares | 25,201 | $32.62 | $822K | |
| Philippe Hoffmann - Officer | Open-market sale | Ordinary shares | 50,000 | $31.92 | $1.60M | |
 Philip Ryan Jurkovic - Officer | Open-market sale | Ordinary shares | 48,784 | $32.01 | $1.56M | |
| Stephane Corre - Officer | Open-market sale | Ordinary shares | 5,000 | $32.04 | $160K | |
| Jean-Christophe Deslarzes - Director | Open-market purchase | Ordinary shares | 1,325 | $31.13 | $41K | |
| Marcus Becker - Officer | Open-market sale | Ordinary shares | 10,000 | $25.09 | $251K | |
| Jean-Christophe Deslarzes - Director | Open-market purchase | Ordinary shares | 1,665 | $24.77 | $41K | |
| Stephen Charles Walters - Officer | Grant or award | Ordinary shares | 5,834 | $0.00 | - | |
 Wiebke Weiler - Director | Grant or award | Ordinary shares | 625 | $0.00 | - | |
| Nicolas Brun - Officer | Grant or award | Ordinary shares | 4,376 | $0.00 | - | |
| Philip Ryan Jurkovic - Officer | Grant or award | Ordinary shares | 10,210 | $0.00 | - | |
| Ludovic Piquier - Officer | Grant or award | Ordinary shares | 5,469 | $0.00 | - | |
| Marcus Becker - Officer | Grant or award | Ordinary shares | 3,938 | $0.00 | - | |
| Ingrid Joerg - Officer | Grant or award | Ordinary shares | 31,358 | $0.00 | - | |
 Matthew B. Perkins - Officer | Grant or award | Ordinary shares | 10,210 | $0.00 | - | |
| Niklaus Schild - Officer | Grant or award | Ordinary shares | 3,355 | $0.00 | - | |
| Philippe Hoffmann - Officer | Grant or award | Ordinary shares | 12,033 | $0.00 | - | |
| Stephane Corre - Officer | Grant or award | Ordinary shares | 7,293 | $0.00 | - | |
| Jack Q. Guo - Officer | Grant or award | Ordinary shares | 19,690 | $0.00 | - | |
| Stephane Corre - Officer | Open-market sale | Ordinary shares | 1,500 | $25.89 | $39K |
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| - | - | - | - | View on EDGAR | |
| - | - | - | - | View on EDGAR | |
| - | - | - | - | View on EDGAR |
CONSTELLIUM SE (CSTM) had 3 insider filings in the last 90 days, with the most recent on 2026-08-03. The full record for CSTM runs to 45 Form 4 filings, the earliest from 2026-02-24. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
1 insider purchase of CSTM was filed in the last 90 days, totaling $41K.
1 insider sale of CSTM was filed in the last 90 days, totaling $280K.
This page tracks CSTM Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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