CSTM · NYSE · Aluminum

Constellium

Converts aluminum into rolled products, extrusions, and structural components for aerospace, packaging, and automotive.

$26.98
After-hours close0.00 (0.00%)
At close$26.98(−1.57%)

Breakdown13F · Form 4

Institutions 91.76%124.36M sharesInsiders 1.36%1.84M sharesOther 6.88%9.32M shares

Shares outstanding 135.53M · Float 123.43M · 91.1% free float

Top shareholders13F · 13D/G · Form 4

HolderShares% outstandingFormFiled
BlackRock, Inc.12.80M9.45%13FAug 7, 2026
Bpifrance SA8.40M6.20%13FJul 27, 2026
EPIC Bpifrance8.40M6.20%13DMay 28, 2026
Morgan Stanley6.18M4.56%13FAug 13, 2026
Vanguard Portfolio Management LLC4.39M3.24%13FAug 13, 2026

Institutions13F, as of Jun 30, 2026

399 holders · 124.36M shares · 114 new positions · 263 increased · 107 reduced · 38 closed

HolderShares% outstandingChg q/qFiled
BlackRock, Inc.12.80M9.45%−161.9KAug 7, 2026
Bpifrance SA8.40M6.20%−4.19MJul 27, 2026
Morgan Stanley6.18M4.56%+2.99MAug 13, 2026
Vanguard Portfolio Management LLC4.39M3.24%+464.7KAug 13, 2026
American Century Companies Inc4.22M3.11%+2.14MAug 12, 2026
T. Rowe Price Investment Management, Inc.2.98M2.20%−980.3KAug 14, 2026
State Street Corp2.95M2.18%+191.3KAug 7, 2026
Arrowstreet Capital, Limited Partnership2.84M2.10%−383.3KAug 13, 2026

Beneficial owners13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
BlackRock, Inc.8.50%12.44MNov 8, 2024
EPIC Bpifranceincl. Caisse des Depots (CDC), Bpifrance S.A. +1 more6.20%8.40M13DMay 28, 2026
FMR LLC5.10%6.96M13GMay 6, 2026

InsidersForm 4

InsiderRoleShares% outstandingFiled
Ingrid Joergdirector, officer: CEO406.5K0.30%Jul 13, 2026
Ludovic Piquierofficer: SVP Manuf Excellence & CTO241.7K0.18%May 13, 2026
Martha Brooksdirector189.7K0.14%Jan 2, 2026
Jack Q. Guoofficer: EVP & CFO185.4K0.14%May 7, 2026
Philip Ryan Jurkovicofficer: SVP & CHRO172.1K0.13%May 4, 2026
Philippe Hoffmannofficer: President, A&T144.2K0.11%May 5, 2026
Nicolas Brunofficer: SVP PA, Comm & Sust104.9K0.08%May 12, 2026
Stephane Correofficer: President, AS&I62.3K0.05%May 12, 2026
Jean-Christophe Deslarzesdirector43.5K0.03%Aug 3, 2026
Michiel Brandjesdirector41.6K0.03%May 7, 2026

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Aug 3, 2026
Jean-Christophe Deslarzesdirector
Purchase1,490$27.2443,515
Jun 4, 2026
John Ormeroddirector
Sale8,000$35.0124,873
May 28, 2026
Marcus Beckerofficer: SVP CPO
Sale10,391$34.9316,784
May 14, 2026
Martin Jarrettofficer: SVP Chief Innovation Officer
Sale4,716$33.4615,375
May 14, 2026
Bradley Lee Soultzdirector
Purchase2,500$33.842,500
May 12, 2026
Ludovic Piquierofficer: SVP Manuf Excellence & CTO
Sale1,000$33.57241,713
May 8, 2026
Stephane Correofficer: President, AS&I
Sale5,000$33.5262,313
May 11, 2026
Nicolas Brunofficer: SVP PA, Comm & Sust
Sale26,661$33.85104,891
May 5, 2026
Jack Q. Guoofficer: EVP & CFO
Sale25,201$32.62185,368
May 5, 2026
Michiel Brandjesdirector
Sale10,400$31.2541,600

CongressHouse and Senate disclosures

Not reported.