CSTM
insider transactionsCONSTELLIUM SE — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 30d
-18.4K
0 buy · 18.4K sell
Net value · 30d
-$643.0K
$0 in · $643.0K out
Sentiment · 30d
Net selling
0% buying · 100% selling
Open-market trades · 30d
2
0 buy · 18.4K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Sell·S
Director
$280.1K
8.0K sh · $35.01
Own -24%
-
Sell·S
SVP CPO
$363.0K
10.4K sh · $34.93
Own -38%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 4, 2026 | John Ormerod | Sell S | 8.0K | $280.1K |
| May 28, 2026 | Marcus Becker | Sell S | 10.4K | $363.0K |
About CSTM insider trading
This page tracks insider transactions for CONSTELLIUM SE (CSTM) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.