Constellium SE insider trading

Every open-market purchase and sale by Constellium SE's officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

Insider purchases, 5 years $207,677 4 trades by 2 insiders 3 months later: median −13.1% (−17.2% vs S&P 500) Insider sales, 5 years $12.2M 25 trades by 13 insiders 3 months later: median +30.7% (+22.1% vs S&P 500)

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.

Constellium SE insider open-market trades
Date	Insider	Trade	Shares	Price	Value	1M after	3M after	6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following Constellium SE’s insiders pay?

From February 24, 2026 to August 3, 2026, 15 insiders reported 4 open-market purchases and 25 sales not made under a pre-set plan in Constellium SE. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on March 18, 2026 into $9,376 by November 2, 2026, −9.8% a year. It held shares 100% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $11,526 (+25.4% a year), and held throughout $11,526 (+25.4%).

Copying Constellium SE's insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Constellium SE's insiders from March 18, 2026, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 100% of the time.

Constellium SE: each insider's record
Insider	Role	Purchases	12 months after their purchases	Beat the S&P 500	Sales	12 months after their sales	Latest report
Corre Stephane	President, AS&I	0	—	—	5	—	May 12, 2026
Becker Marcus	SVP CPO	0	—	—	4	—	June 1, 2026
Deslarzes Jean-Christophe	Director	3	—	—	0	—	August 3, 2026
Hoffmann Philippe	President, A&T	0	—	—	3	—	May 5, 2026
Brun Nicolas	SVP PA, Comm & Sust	0	—	—	2	—	May 12, 2026
Guo Jack Q.	EVP & CFO	0	—	—	2	—	May 7, 2026
Jurkovic Philip Ryan	SVP & CHRO	0	—	—	2	—	May 4, 2026
Boccon-Gibod Isabelle	Director	0	—	—	1	—	February 27, 2026
Brandjes Michiel	Director	0	—	—	1	—	May 7, 2026
Jarrett Martin	SVP Chief Innovation Officer	0	—	—	1	—	May 18, 2026
Joerg Ingrid	CEO	0	—	—	1	—	March 11, 2026
Ormerod John	Director	0	—	—	1	—	June 8, 2026
Piquier Ludovic	SVP Manuf Excellence & CTO	0	—	—	1	—	May 13, 2026
Soultz Bradley Lee	Director	1	—	—	0	—	May 18, 2026
Walters Stephen Charles	SVP GC & Secretary	0	—	—	1	—	February 24, 2026

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded Constellium SE

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Constellium SE in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After 1 selling crowd, −19.4%. One company's history is too short to judge by; the test across every company is the better guide.

Month	Crowd	3 months on, vs S&P 500	6 months	12 months
March 31, 2026	9 selling	+8.1%	−19.4%	not yet

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Total returns from the month end; past patterns are not a forecast.

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