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Insider · CIK 0002092744

Isabelle Boccon-Gibod

director

Files at CSTM (CONSTELLIUM SE). First filing Feb 27, 2026, latest Feb 27, 2026.

In brief

Isabelle Boccon-Gibod files SEC Form 4 as director at CSTM (CONSTELLIUM SE). Since Feb 27, 2026, Isabelle Boccon-Gibod has reported 0 open-market buys worth $0 and 1 open-market sell worth $258k, the latest filed on Feb 27, 2026.

A track record needs three past buys with six months of prices behind them; Isabelle Boccon-Gibod has 0, so none is measured yet.

The newest scored trade: sold $258k of CSTM on Feb 26, 2026, filed Feb 27, 2026, scored 53 (moderate). In the last 12 months: 0 buys worth $0 and 1 sell worth $258k.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 1
$0 bought, $258k sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

CSTM: CONSTELLIUM SE

CSTMOct 9, 2026 · close 25.81

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
53Moderate
CSTMsell 9
CONSTELLIUM SE
$258k
10,000 shares
-30%-

Planned sales

Form 144 notices this insider filed before selling restricted or control stock, newest first.

FiledCompanySharesValueSale datePast 3 months
Feb 25, 2026 CSTM
CONSTELLIUM SE
10,000
0.01% of outstanding
$258kFeb 25, 2026none

Transactions

Every row this insider has filed, 1 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Feb 26, 2026CSTM
CONSTELLIUM SE
SOpen-market sale
Ordinary shares
-10,000$25.77$258k23,000Feb 27, 2026

Questions about Isabelle Boccon-Gibod

Answered from the filings on this page, as of the latest one.

Is Isabelle Boccon-Gibod buying or selling?

In the last 12 months Isabelle Boccon-Gibod reported 0 open-market buys worth $0 and 1 open-market sell worth $258k on SEC Form 4; the latest was sold $258k of CSTM on Feb 26, 2026. Grants, option exercises and tax withholding are not counted.

How did Isabelle Boccon-Gibod's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Isabelle Boccon-Gibod has 0.

Where does Isabelle Boccon-Gibod file Form 4?

Isabelle Boccon-Gibod has filed Form 4 at CSTM (CONSTELLIUM SE). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Isabelle Boccon-Gibod: insider trades and track record | InsiderTell