# EDGAR Filing Document

**Accession Number:** 0001690451
**File Stem:** 0000919574-25-003644
**Filing Date:** 2025-6
**Character Count:** 8592
**Document Hash:** 9e6e527c8e52a74dd0ec6cbc0873d187
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000919574-25-003644.hdr.sgml**: 20250618

**ACCESSION NUMBER**: 0000919574-25-003644

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250606

**FILED AS OF DATE**: 20250618

**DATE AS OF CHANGE**: 20250618

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Teleios Capital Partners GmbH
- **CENTRAL INDEX KEY:** 0001690451

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** V8
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-33913
- **FILM NUMBER:** 251055409

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** DORFSTRASSE 9
- **CITY:** WALCHWIL/ZUG
- **PROVINCE COUNTRY:** V8
- **ZIP:** 6318
- **BUSINESS PHONE:** 41415065659

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** DORFSTRASSE 9
- **CITY:** WALCHWIL/ZUG
- **PROVINCE COUNTRY:** V8
- **ZIP:** 6318
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Teleios Global Opportunities Master Fund Ltd.
- **CENTRAL INDEX KEY:** 0002073656

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-33913
- **FILM NUMBER:** 251055408

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** BAARERSTRASSE 12
- **CITY:** ZUG
- **PROVINCE COUNTRY:** V8
- **ZIP:** 6300
- **BUSINESS PHONE:** 41 41 5065656

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** BUCKINGHAM SQUARE, 720 WEST BAY ROAD
- **CITY:** GRAND CAYMAN
- **PROVINCE COUNTRY:** E9
- **ZIP:** 00000
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Kuzniar Igor Tadeusz
- **CENTRAL INDEX KEY:** 0002073164

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-33913
- **FILM NUMBER:** 251055407

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** BAARERSTRASSE 12
- **CITY:** ZUG
- **PROVINCE COUNTRY:** V8
- **ZIP:** 6300
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Quanex Building Products CORP
- **CENTRAL INDEX KEY:** 0001423221
- **STANDARD INDUSTRIAL CLASSIFICATION:** ROLLING DRAWING & EXTRUDING OF NONFERROUS METALS [3350]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 261561397
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1031

**BUSINESS ADDRESS:**
- **STREET 1:** 945 BUNKER HILL RD
- **STREET 2:** SUITE 900
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77024
- **BUSINESS PHONE:** 7139614600

**MAIL ADDRESS:**
- **STREET 1:** 945 BUNKER HILL RD
- **STREET 2:** SUITE 900
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77024

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

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Teleios Capital Partners GmbH<br><sub>(Last) (First) (Middle)</sub><br>BAARERSTRASSE 12<br><sub>(Street)</sub><br>ZUG, V8 6300<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Quanex Building Products CORP [ NX ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-06-06 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [X] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Teleios Global Opportunities Master Fund Ltd.<br><sub>(Last) (First) (Middle)</sub><br>C/O BNP PARIBAS BANK & TRUST CAYMAN LTD<br>BUCKINGHAM SQUARE, 720 WEST BAY ROAD<br><sub>(Street)</sub><br>GRAND CAYMAN, E9 KY1-1104<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Quanex Building Products CORP [ NX ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-06-06 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Kuzniar Igor Tadeusz<br><sub>(Last) (First) (Middle)</sub><br>C/O TELEIOS CAPITAL PARTNERS GMBH<br>BAARERSTRASSE 12<br><sub>(Street)</sub><br>ZUG, V8 6300<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Quanex Building Products CORP [ NX ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-06-06 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Common Stock, par value $0.01 per share | 4621879 | I | See Footnote<sup>(1)</sup> |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) 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.

**Signature:** Teleios Capital Partners GmbH, /s/ Igor Kuzniar, Managing Officer  
**Date:** 2025-06-18

**Signature:** Teleios Global Opportunities Master Fund Ltd., /s/ Carl Speck, Director  
**Date:** 2025-06-18

**Signature:** /s/ Igor Kuzniar  
**Date:** 2025-06-18

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* 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).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**