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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 8-K

CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
Date of Report (Date of earliest event reported): April 30, 2025
Constellium SE
(Exact name of registrant as specified in its charter)

France | 001-35931 | 98-0667516
(State or Other Jurisdiction of Incorporation) | (Commission File Number) | (I.R.S. Employer Identification No.)

300 East Lombard Street
Suite 1710
Baltimore, MD 21202
United States
(Address of principal executive office (US))
(443) 420-7861
(Registrant’s telephone number, including area code)
N/A
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to section 12(b) of the Act

Title of each class | Trading Symbol(s) | Name of each exchange on which registered
Ordinary Shares | CSTM | New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in [sic] Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 | Results of Operations and Financial Condition

On April 30, 2025, Constellium SE (the “Company”) issued a press release announcing its financial results for the first quarter of 2025. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.
The Company is also furnishing an investor presentation relating to its first quarter of 2025 (the “Presentation”), which will be used by the management team for presentations to investors and others. A copy of the Presentation is attached hereto as Exhibit 99.2 and incorporated into this Item 2.02 by reference. The Presentation is also available on the Company’s web site at www.constellium.com.
In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 and Exhibit 99.2, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. | Financial Statements and Exhibits

(d) Exhibits
The following exhibits are furnished with this report on Form 8-K:

Exhibit No. |  | Description
99.1 |  | Press Release by Constellium SE dated April 30, 2025
99.2 |  | Investor Presentation
104 |  | The cover page of this Current Report on Form 8-K, formatted in Inline XBRL

SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

| CONSTELLIUM SE
| (Registrant)
April 30, 2025 | By: | /s/ Jack Guo
| Name: | Jack Guo
| Title: | Chief Financial Officer