UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 6, 2026

ORION S.A.

(Exact name of registrant as specified in its charter)

Grand Duchy of Luxembourg

001-36563

00-0000000

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

1700 City Plaza Drive, Suite 300

Spring, Texas 77389

(Address of principal executive offices, including zip code)

(281) 318-2959

(Registrant’s telephone number, including area code)

(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		Name of each exchange on which registered
Common Shares, no par value		OEC		New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

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 5.02

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

Departure of Director

As disclosed in the preliminary proxy statement for the 2026 annual general meeting of shareholders (the “Annual Meeting”) of Orion S.A. (the “Company”) filed with the SEC on April 10, 2026, Mr. Michel Wurth announced on April 6, 2026 his decision to not stand for re-election to the Board of Directors at the Annual Meeting due to increased responsibilities with other endeavours. Mr. Michel Wurth’s decision not to seek re-election to the Board of Directors was not the result of any disagreement with the Company or the Board of Directors.

SIGNATURES

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.

	Orion S.A.

	By:	/s/ Jon Puckett
	Name:	Jon Puckett
	Title:	Chief Financial Officer

Date: April 10, 2026

Orion S.A. filed SEC Form 8-K: Leadership Update