Constellium SE

CSTM·NYSE·$35.28Share Price as of 11/2·$5BMarket Cap as of 11/2

Financials

10-QQ3 ended 09/30/2610/28/26 10-QQ2 ended 06/30/2607/29/26 10-QQ1 ended 03/31/2604/29/26 10-KFY 202502/25/26 10-QQ3 ended 09/30/2510/29/25

Disclosures

8-KCurrent report10/28/26 8-KCurrent report07/29/26 8-KCurrent report05/21/26 8-KCurrent report04/29/26 8-KCurrent report03/12/26

Prospectuses and Registrations

S-3ASRAutomatic shelf registration06/24/26 S-8Registration of securities for employees05/16/24 F-3ASRProspectus / registration03/20/24 S-8Registration of securities for employees05/14/21 F-3ASRProspectus / registration11/13/20

Proxies

DEF 14ADefinitive proxy04/10/26 DEFA14AAdditional proxy materials04/10/26 PRE 14APreliminary proxy03/30/26

Ownership

SC 13G/ABeneficial ownership (amended)08/06/26 Form 4Insider transaction08/03/26 Form 4Insider transaction07/13/26 Form 4Insider transaction06/08/26 144Proposed sale of securities06/04/26

Other

SDConflict Minerals disclosure05/28/26 ARSAnnual report to shareholders04/10/26 SDConflict Minerals disclosure05/27/25 SDConflict Minerals disclosure05/28/24 UPLOADLetter from the SEC03/05/24