Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person ^*

Cornett Paul

2. Date of Event Requiring Statement (MM/DD/YYYY) 11/1/2019

3. Issuer Name and Ticker or Trading Symbol

Quanex Building Products CORP [NX]

(Last) (First) (Middle)

1800 W LOOP SOUTH, SUITE 1500

4. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director _____ 10% Owner
___X___ Officer (give title below) _____ Other (specify below)
SVP General Counsel, Secretary /

(Street)

HOUSTON, TX 77027

(City) (State) (Zip)

5. If Amendment, Date Original Filed(MM/DD/YYYY)

6. Individual or Joint/Group Filing(Check Applicable Line)

_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	11696.99 ⁽¹⁾	D

*Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)*
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivate Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Phantom Stock Units	⁽²⁾	⁽²⁾	Common Stock	2311.1	⁽³⁾	D
Stock Options (Right to Buy)	12/2/2012 ⁽⁴⁾	12/2/2019	Common Stock	1500	$16.21	D
Stock Options (Right to Buy)	12/1/2013 ⁽⁵⁾	12/1/2020	Common Stock	1500	$16.90	D
Stock Options (Right to Buy)	11/30/2014 ⁽⁶⁾	11/30/2021	Common Stock	1500	$15.08	D
Stock Options (Right to Buy)	12/5/2015 ⁽⁷⁾	12/5/2022	Common Stock	1500	$21.11	D
Stock Options (Right to Buy)	12/5/2016 ⁽⁸⁾	12/5/2023	Common Stock	2000	$17.63	D
Stock Options (Right to Buy)	12/3/2017 ⁽⁹⁾	12/3/2024	Common Stock	1800	$20.28	D
Stock Options (Right to Buy)	12/2/2018 ⁽¹⁰⁾	12/2/2025	Common Stock	5500	$19.31	D
Stock Options (Right to Buy)	11/30/2019 ⁽¹¹⁾	11/30/2026	Common Stock	5500	$19.45	D

Explanation of Responses:
(1)	The shares of common stock listed in column 2 of table I comprise (i) 1,800 shares of restricted stock that will vest on November 30, 2019, subject to the reporting person's continued employment; (ii) 1,500 shares of restricted stock that will vest on December 7, 2020, subject to the reporting person's continued employment; (iii) 4,500 shares of restricted stock that will vest on December 5, 2021, subject to the reporting person's continued employment; and (iv) 3,896.99 non-restricted shares purchased through the Quanex Employee Stock Purchase Plan.
(2)	Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of employment.
(3)	Conversion price is 1-for-1.
(4)	The stock options vested in three equal annual installments beginning on December 2, 2010.
(5)	The stock options vested in three equal annual installments beginning on December 1, 2011.
(6)	The stock options vested in three equal annual installments beginning on November 30, 2012.
(7)	The stock options vested in three equal annual installments beginning on December 5, 2013.
(8)	The stock options vested in three equal annual installments beginning on December 5, 2014.
(9)	The stock options vested in three equal annual installments beginning on December 3, 2015.
(10)	The stock options vested in three equal annual installments beginning on December 2, 2016
(11)	The stock options vest in three equal annual installments beginning on November 30, 2017. As of the date of this Form 3 filing, 1,884 stock options remained unvested, and all such options will vest on November 30, 2019, subject to the reporting person's continued employment.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Cornett Paul 1800 W LOOP SOUTH SUITE 1500 HOUSTON, TX 77027			SVP General Counsel, Secretary