Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Teleios Capital Partners GmbH 2. Issuer Name and Ticker or Trading Symbol Quanex Building Products CORP [NX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) __X__ Other (specify below) OBSERVER SEAT ON BOARD (Last) (First) (Middle) BAARERSTRASSE 12, 3. Date of Earliest Transaction (Month/Day/Year) 12/16/2025 (Street) ZUG, V8 6300 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock, par value $0.01 per share 12/16/2025 S 80,515 D $16.5061(1) 4,541,364 I See footnote(3) Common Stock, par value $0.01 per share 12/17/2025 S 119,485 D $15.9387(2) 4,421,879 I See footnote(3)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Teleios Capital Partners GmbH BAARERSTRASSE 12 ZUG, V8 6300		X		OBSERVER SEAT ON BOARD
Teleios Global Opportunities Master Fund, Ltd. C/O BNP PARIBAS BANK & TRUST CAYMAN LTD BUCKINGHAM SQUARE, 720 WEST BAY ROAD GRAND CAYMAN, E9 KY1-1104		X
Kuzniar Igor Tadeusz C/O TELEIOS CAPITAL PARTNERS GMBH BAARERSTRASSE 12 ZUG, V8 6300		X

Signatures

Teleios Capital Partners GmbH, /s/ Igor Kuzniar, Managing Officer		12/18/2025
**Signature of Reporting Person		Date
Teleios Global Opportunities Master Fund, Ltd., /s/ Carl Speck, Director		12/18/2025
**Signature of Reporting Person		Date
/s/ Igor Kuzniar		12/18/2025
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	This reported price is a weighted average price. These shares were bought in multiple transactions within the range of $16.49 and $16.52. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.
(2)	This reported price is a weighted average price. These shares were bought in multiple transactions within the range of $15.65 and $16.43 The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.
(3)	The securities reported herein are held by Teleios Global Opportunities Master Fund, Ltd., a Cayman Islands exempted company (the "Master Fund"). The reported securities may be deemed beneficially owned by Teleios Capital Partners GmbH, the investment manager of the Master Fund, and Teleios Capital Partners GmbH's managing member and controlling shareholder: Igor Kuzniar. Each of Mr. Kuzniar, the Master Fund, and Teleios Capital Partners GmbH, a Reporting Person. Teleios Capital Partners GmbH and Igor Kuzniar each disclaim beneficial ownership of the reported securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that each Reporting Person is the beneficial owner of the securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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