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© 2026 DataHeimdall. All rights reserved.Data sourced from SEC EDGAR public filings.
Insider Trades

CSTM

CONSTELLIUM SE

Superinvestors

Institutional investors holding CSTM

Consensus →
InvestorFundWeightSharesValueQuarter
Meridian / ArrowMarkMeridian Contrarian Fund0.32%497,379$12.2M2026Q1
Kenneth FisherFisher Asset Management0.00%539,451$13.3M2026Q1

Congressional Activity

Congressional data coming soon

Insider Activity

11

Total trades

$5.9M

Volume

2

Buys

9

Sells

Last trade: May 14, 2026

Insider Tradeslast 90 days

DateInsiderTypeValue
May 14, 2026Martin JarrettBuy$85K
May 14, 2026Martin JarrettSell$158K

Congressional Tradeslast 90 days

Congressional trade data is being sourced and will appear here shortly.

May 12, 2026
Martin Jarrett
Sell
$34K
May 11, 2026Nicolas BrunSell$902K
May 8, 2026Martin JarrettSell$168K
May 5, 2026Michiel BrandjesSell$325K
May 5, 2026Martin JarrettSell$822K
May 1, 2026Martin JarrettBuy$41K
May 1, 2026Martin JarrettSell$160K
May 1, 2026Martin JarrettSell$1.6M
May 1, 2026Martin JarrettSell$1.6M