# EDGAR Filing Document

**Accession Number:** 0001423221
**File Stem:** 0001423221-25-000036
**Filing Date:** 2025-11
**Character Count:** 5359
**Document Hash:** e08b59ce91117f7947ebf8128bad70e4
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001423221-25-000036.hdr.sgml**: 20251103

**ACCESSION NUMBER**: 0001423221-25-000036

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20251101

**FILED AS OF DATE**: 20251103

**DATE AS OF CHANGE**: 20251103

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Lawler Mary Katherine
- **CENTRAL INDEX KEY:** 0001435059

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-33913
- **FILM NUMBER:** 251444165

**MAIL ADDRESS:**
- **STREET 1:** ILLINOIS TOOL WORKS INC.
- **STREET 2:** 155 HARLEM AVE
- **CITY:** GLENVIEW
- **STATE:** IL
- **ZIP:** 60025
**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

## Ex-24

```

The undersigned hereby constitutes and appoints Paul Cornett, Angela Bongat,
and Scott Zuehlke her true and lawful attorneys-in-fact and agents, with full
power of substitution and re-substitution, for her and in her name, place and
stead, in any and all capacities, to complete and sign all Form 3s, Form 4s and
Form 5s relating to equity securities of Quanex Building Products Corporation
and to file the same, with all exhibits thereto or documents in connection
therewith, with the Securities and Exchange Commission, the New York Stock
Exchange and Quanex Building Products Corporation, granting to said
attorney-in-fact and agent, full power and authority to do and perform each and
every act and thing requisite and necessary to be done in and about the
premises, as fully to all intents and purposes as she might or could do in
person, hereby ratifying and confirming all that said attorney-in-fact and
agent, or substitute or substitutes, may lawfully do or cause to be done by
virtue hereof. hereof. Executed this 1st day of November, 2025. /s/ Katie
Lawler Katie Lawler

```

### 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>Lawler Mary Katherine<br><sub>(Last) (First) (Middle)</sub><br>945 BUNKER HILL ROAD, SUITE 900<br><sub>(Street)</sub><br>HOUSTON, TX 77024<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>2025-11-01 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director   [ ] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] 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 |

---

## 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 |
|  |  |  |  |  |  |  |  |

---

**Remarks:**
Exhibit List:  Exhibit 24 - Power of Attorney

**Signature:** /s/ Paul B. Cornett, Power of Attorney  
**Date:** 2025-10-28

### 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.**