[8-K] CONSTELLIUM SE Reports Material Event

Rhea-AI Filing Summary

Constellium SE furnished materials related to its third-quarter 2025 results. The company announced it issued a press release and an investor presentation covering Q3 2025.

These materials were provided under Item 2.02 and are designated as “furnished,” not “filed,” under General Instruction B.2. The press release (Exhibit 99.1) and investor presentation (Exhibit 99.2) accompany the report and are also available on the company’s website.

false000156341100015634112025-10-292025-10-29

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): October 29, 2025

Constellium SE

(Exact name of registrant as specified in its charter)

France

001-35931

98-0667516

(State or other jurisdiction of incorporation or organization)

(Commission File Number)

(I.R.S. Employer Identification No.)

300 East Lombard Street,

Suite 1710

Baltimore,

MD

21202

(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 October 29, 2025, Constellium SE (the “Company”) issued a press release announcing its financial results for the third 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 third 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 October 29, 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)
October 29, 2025			By:			/s/ Jack Guo
			Name:			Jack Guo
			Title:			Executive Vice President & Chief Financial Officer

FAQ

What did Constellium (CSTM) announce in this 8-K?

Constellium announced it issued a press release with Q3 2025 financial results and furnished an investor presentation.

Which exhibits are included with Constellium’s 8-K?

Exhibit 99.1 is the Q3 2025 press release and Exhibit 99.2 is the investor presentation.

Are the Q3 2025 materials furnished or filed?

They are furnished under Item 2.02 in accordance with General Instruction B.2 and are not deemed filed under Section 18.

Where can investors access Constellium’s Q3 2025 materials?

The press release and presentation are attached as exhibits to the report and available at www.constellium.com.

What is Constellium’s trading symbol and exchange?

Constellium’s ordinary shares trade on the New York Stock Exchange under the symbol CSTM.

Who signed the report for Constellium?

The report was signed by Jack Guo, Executive Vice President & Chief Financial Officer.