SEC Form 4
Constellium SE (CSTM) insider trading
In the 12 months to Oct 24, 2026, 12 CSTM insiders reported open-market sales of $10.1M across 20 filings; 5 insiders bought $207.7K.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $10.1M
- 20 filings · 12 insiders
- Open-market purchases
- $207.7K
- 7 filings
$ excludes 3 trades without a price.
Who traded CSTM, and when
- Purchase
- Sale
CSTM daily close from Oct 24, 2025 to Oct 23, 2026, between $14.75 and $36.15, last $23.22. 20 sale and 7 purchase filings by 14 insiders, marked at their filing dates. Philippe Hoffmann, President, A&T: sold $3.7M across 3 filings, first filed Mar 6, 2026, last May 5, 2026. Philip Ryan Jurkovic, SVP & CHRO: sold $1.6M across 1 filing, first filed May 4, 2026, last May 4, 2026. Nicolas Brun, SVP PA, Comm & Sust: sold $1.3M across 2 filings, first filed Mar 11, 2026, last May 12, 2026. Marcus Becker, SVP CPO: sold $1.0M across 4 filings, first filed Feb 24, 2026, last Jun 1, 2026. Jack Q. Guo, EVP & CFO: sold $822.1K across 1 filing, first filed May 7, 2026, last May 7, 2026. Stephane Corre, President, AS&I: sold $523.0K across 6 filings, first filed Feb 27, 2026, last May 12, 2026. Jean-Christophe Deslarzes, Director: bought $123.1K across 3 filings, first filed Mar 17, 2026, last Aug 3, 2026. Bradley Lee Soultz, Director: bought $84.6K across 1 filing, first filed May 18, 2026, last May 18, 2026. 6 others: sold $1.1M across 6 filings, first filed Feb 24, 2026, last Jun 8, 2026.
Largest mark · tap a row for others
Philippe Hoffmann · President, A&T
Sale $2,115,700
80,000 shares
Filed Mar 6, 2026 · traded Mar 4
Close on filing date $24.75
Philippe Hoffmann · President, A&T
President, A&T
$3.7M soldPhilip Ryan Jurkovic · SVP & CHRO
SVP & CHRO
$1.6M soldNicolas Brun · SVP PA, Comm & Sust
SVP PA, Comm & Sust
$1.3M soldMarcus Becker · SVP CPO
SVP CPO
$1.0M soldJack Q. Guo · EVP & CFO
EVP & CFO
$822.1K soldStephane Corre · President, AS&I
President, AS&I
$523.0K soldJean-Christophe Deslarzes · Director
Director
$123.1K boughtBradley Lee Soultz · Director
Director
$84.6K bought6 others
Combined, one mark per week
$1.1M soldHas Constellium SE's CEO sold stock?
No. Ingrid Joerg (CEO) made no open-market sales filed as CEO in the last 12 months.
Open-market trades
27 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Philippe Hoffmann | President, A&T | $3.7M | — | 3 | — | |
| Philip Ryan Jurkovic | SVP & CHRO | $1.6M | — | 1 | — | |
| Nicolas Brun | SVP PA, Comm & Sust | $1.3M | — | 2 | — | |
| Marcus Becker | SVP CPO | $1.0M | — | 4 | — | |
| Jack Q. Guo | EVP & CFO | $822.1K | — | 1 | — | |
| Stephane Corre | President, AS&I | $523.0K | — | 6 | — | |
| Michiel Brandjes | Director | $325.0K | — | 1 | — | |
| John Ormerod | Director | $280.1K | — | 1 | — | |
| Isabelle Boccon-Gibod | Director | $257.7K | — | 1 | — | |
| Martin Jarrett | SVP Chief Innovation Officer | $157.8K | — | 1 | — | |
| Jean-Christophe Deslarzes | Director | — | $123.1K | 3 | — | |
| Bradley Lee Soultz | Director | — | $84.6K | 1 | — | |
| Stephen Charles Walters | SVP GC & Secretary | $38.1K | — | 1 | — | |
| Ludovic Piquier | SVP Manuf Excellence & CTO | $33.6K | — | 1 | — |
| Filed | Insider | Type | Shares | Value | Held after | Source |
|---|---|---|---|---|---|---|
traded | Jean-Christophe Deslarzes Director | Purchase | 1,490 ordinary shares | $40.6K | 43,515 | |
traded | John Ormerod Director | Sale | 8,000 ordinary shares | $280.1K | 24,873 | |
traded | Marcus Becker SVP CPO | Sale | 10,391 ordinary shares | $363.0K | 16,784 | |
traded | Bradley Lee Soultz Director | Purchase | 2,500 ordinary shares | $84.6K | 2,500 | |
traded | Martin Jarrett SVP Chief Innovation Officer | Sale | 4,716 ordinary shares | $157.8K | 15,375 | |
traded | Ludovic Piquier SVP Manuf Excellence & CTO | Sale | 1,000 ordinary shares | $33.6K | 241,713 | |
traded | Stephane Corre President, AS&I | Sale | 5,000 ordinary shares | $167.6K | 62,313 | |
traded | Nicolas Brun SVP PA, Comm & Sust | Sale | 26,661 ordinary shares | $902.5K | 104,891 | |
traded | Michiel Brandjes Director | Sale | 10,400 ordinary shares | $325.0K | 41,600 | |
traded | Jack Q. Guo EVP & CFO | Sale | 25,201 ordinary shares | $822.1K | 185,368 | |
traded | Philippe Hoffmann President, A&T | Sale | 50,000 ordinary shares | $1.6M | 144,153 | |
traded | Stephane Corre President, AS&I | Sale | 5,000 ordinary shares | $160.2K | 67,313 | |
traded | Philip Ryan Jurkovic SVP & CHRO | Sale | 48,784 ordinary shares | $1.6M | 172,149 | |
traded | Jean-Christophe Deslarzes Director | Purchase | 1,325 ordinary shares | $41.2K | 42,025 | |
traded | Marcus Becker SVP CPO | Sale | 10,000 ordinary shares | $250.9K | 27,175 | |
traded | Jean-Christophe Deslarzes Director | Purchase | 1,665 ordinary shares | $41.2K | 40,700 | |
traded | Stephane Corre President, AS&I | Sale | 1,500 ordinary shares | $38.8K | 65,020 | |
traded | Marcus Becker SVP CPO | Purchase | 14,592 ordinary shares | — | 34,350 | |
traded | Philippe Hoffmann President, A&T | Purchase | 71,132 ordinary shares | — | 186,848 | |
traded | Nicolas Brun SVP PA, Comm & Sust | Sale | 17,701 ordinary shares | $436.7K | 103,466 | |
traded | Stephane Corre President, AS&I | Purchase | 8,026 ordinary shares | — | 66,520 | |
traded | Philippe Hoffmann President, A&T | Sale | 80,000 ordinary shares | $2.1M | 85,425 | |
traded | Stephane Corre President, AS&I | Sale | 3,000 ordinary shares | $74.1K | 44,444 | |
traded | Stephane Corre President, AS&I | Sale | 3,200 ordinary shares | $82.3K | 47,444 | |
traded | Isabelle Boccon-Gibod Director | Sale | 10,000 ordinary shares | $257.7K | 23,000 | |
traded | Stephen Charles Walters SVP GC & Secretary | Sale | 1,500 ordinary shares | $38.1K | 0 | |
traded | Marcus Becker SVP CPO | Sale | 15,570 ordinary shares | $398.3K | 0 |
Shares are as filed (ordinary shares or ADS); values are as converted to US$ in the filing.
GET /stocks/filings/vX/form-4?tickers=CSTM&filing_date.gte=2025-10-24&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"CSTM"
],
"issuer_cik": "0001563411",
"owner_cik": "0002092745",
"accession_number": "0001563411-26-000194",
"form_type": "4",
"filing_date": "2026-08-03",
"period_of_report": "2026-08-03",
"issuer_name": "CONSTELLIUM SE",
"issuer_trading_symbol": "CSTM",
"owner_name": "Deslarzes Jean-Christophe",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Ordinary shares",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-03",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 1490,
"transaction_price_per_share": 27.24,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 43515,
"transaction_value": 40587.6,
"not_subject_to_section_16": false,
"direct_or_indirect": "D"
},
{
"tickers": [
"CSTM"
],
"issuer_cik": "0001563411",
"owner_cik": "0002092962",
"accession_number": "0001563411-26-000180",
"form_type": "4",
"filing_date": "2026-06-08",
"period_of_report": "2026-06-04",
"issuer_name": "CONSTELLIUM SE",
"issuer_trading_symbol": "CSTM",
"owner_name": "Ormerod John",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Ordinary shares",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-06-04",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 8000,
"transaction_price_per_share": 35.01,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 24873,
"transaction_value": 280080,
"not_subject_to_section_16": false,
"direct_or_indirect": "D"
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 24 records
- Tax withholding1 record
- Tax withholding (sold to cover)5 records
- Grants and awards18 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for CSTM every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.