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Constellium SE (CSTM)

Constellium SE (CSTM) Insider Trading

Directors, officers and holders of more than 10% of CSTM report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 53 transactions on file: 8 with code P, 23 with code S and 19 with other codes.

DateInsiderCodeShares
Nov 2, 2026Deslarzes Jean-ChristopheP Purchase1,800
Aug 3, 2026Deslarzes Jean-ChristopheP Purchase1,490
Jul 10, 2026Joerg IngridF Tax Payment2,984
Jun 4, 2026Ormerod JohnS Sale8,000
May 28, 2026Becker MarcusS Sale10,391
May 14, 2026Jarrett MartinS Sale4,716
May 14, 2026Soultz Bradley LeeP Purchase2,500
May 12, 2026Piquier LudovicS Sale1,000
May 11, 2026Brun NicolasS Sale26,661
May 8, 2026Corre StephaneS Sale5,000
May 5, 2026Guo Jack Q.S Sale25,201
May 5, 2026Brandjes MichielS Sale10,400
May 1, 2026Hoffmann PhilippeS Sale50,000
May 1, 2026Corre StephaneS Sale5,000
May 1, 2026Jurkovic Philip RyanS Sale48,784
May 1, 2026Deslarzes Jean-ChristopheP Purchase1,325
Mar 16, 2026Becker MarcusS Sale10,000
Mar 12, 2026Schild NiklausA Award3,355
Mar 12, 2026Walters Stephen CharlesA Award5,834
Mar 12, 2026Weiler WiebkeA Award625
Mar 12, 2026Brun NicolasA Award4,376
Mar 12, 2026Jurkovic Philip RyanA Award10,210
Mar 12, 2026Piquier LudovicA Award5,469
Mar 12, 2026Becker MarcusA Award3,938
Mar 12, 2026Joerg IngridA Award31,358
Mar 12, 2026Perkins Matthew B.A Award10,210
Mar 12, 2026Hoffmann PhilippeA Award12,033
Mar 12, 2026Corre StephaneA Award7,293
Mar 12, 2026Guo Jack Q.A Award19,690
Mar 10, 2026Joerg IngridS Sale4,614
Mar 10, 2026Guo Jack Q.S Sale41,717
Mar 10, 2026Becker MarcusS Sale1,113
Mar 10, 2026Jurkovic Philip RyanS Sale29,900
Mar 10, 2026Hoffmann PhilippeS Sale4,728
Mar 10, 2026Corre StephaneS Sale1,500
Mar 9, 2026Guo Jack Q.A Award75,874
Mar 9, 2026Joerg IngridA Award71,132
Mar 9, 2026Piquier LudovicA Award30,350
Mar 9, 2026Brun NicolasS Sale17,701
Mar 9, 2026Schild NiklausA Award5,106
Mar 9, 2026Corre StephaneP Purchase8,026
Mar 9, 2026Hoffmann PhilippeP Purchase71,132
Mar 9, 2026Jurkovic Philip RyanA Award59,276
Mar 9, 2026Becker MarcusP Purchase14,592
Mar 9, 2026Brun NicolasA Award23,710
Mar 4, 2026Hoffmann PhilippeS Sale30,000
Mar 4, 2026Hoffmann PhilippeS Sale50,000
Mar 2, 2026Deslarzes Jean-ChristopheP Purchase1,665
Feb 27, 2026Corre StephaneS Sale3,000
Feb 26, 2026Boccon-Gibod IsabelleS Sale10,000

The full Form 4 history is on the CSTM company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.