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Insider selling
Nicolas Brun sold $902K of Constellium Se (CSTM) stock
Nicolas Brun, SVP PA, Comm & Sust of Constellium Se (CSTM), sold 26,661 shares of CSTM stock worth $902K, per an SEC Form 4 filed May 12, 2026.
It was an open-market sale.
The trade happened on May 11, 2026, 1 day before it was made public.
CSTM has moved -25.4% since the trade date, from $34.20 to $25.50 (Sep 21, 2026 close).
- Traded
- May 11, 2026
- Disclosed
- May 12, 2026
- Filing delay
- 1 day
- Price since
- -25.4%
- Role
- SVP PA, Comm & Sust
- Source
- SEC Form 4
More CSTM insider and Congress trades
From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.