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

January 6, 2026

(Date of earliest event reported)

QUANEX BUILDING PRODUCTS CORPORATION

(Exact name of registrant as specified in its charter)

Delaware		1-33913		26-1561397
(State or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer Identification No.)

945 Bunker Hill Road, Suite 900,

Houston, Texas

77024

(Address of principal executive offices)

(Zip Code)

Registrant’s telephone number, including area code: 713- 961-4600

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 (b) 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
Common Stock, par value $0.01 per share	NX	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 (§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 8.01

Other Events

On January 6, 2026, Teleios Global Opportunities Master Fund (“Teleios”) notified Quanex Building Products Corporation (the “Company”) of the resignation, effective January 8, 2026, of Teleios’ observer to the Company’s board of directors. Teleios will no longer hold an observer right with respect to the Company’s board following the resignation.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	QUANEX BUILDING PRODUCTS CORPORATION

	(Registrant)

January 9, 2026	/S/ PAUL B. CORNETT

(Date)	Paul B. Cornett Senior Vice President – General Counsel and Secretary

Quanex Building Products Corporation filed SEC Form 8-K: Other Events