Glancy Prongay & Murray LLP, a leading national shareholder rights law firm, today announced that it has commenced an investigation on behalf of Quanex Building Products Corporation (“Quanex” or the “Company”) (NYSE: NX) investors concerning the Company’s possible violations of the federal securities laws.

IF YOU ARE AN INVESTOR WHO LOST MONEY ON QUANEX BUILDING PRODUCTS CORPORATION (NX), CLICK HERE TO INQUIRE ABOUT POTENTIALLY PURSUING CLAIMS TO RECOVER YOUR LOSS.

What Happened?

On September 4, 2025, Quanex released its third quarter 2025 financial results. Among other things, the Company disclosed “operational issues related to the legacy Tyman window and door hardware business in Mexico that are ongoing” which led to an approximately $5 million EBITDA headwind in the quarter.

In an earnings call held the same day, the Company’s CEO stated it had “identified midyear” that it was “underinvested and that the tooling condition and the equipment condition was not where we wanted to be” so it “had to make some changes and fix some things before it was catastrophic.” The Company further disclosed that it was “adjusting for lower expected volumes and pushing out the timing of when we expect to realize procurement savings.”

On this news, Quanex’s stock price fell $2.73, or 13.1%, to close at $18.18 per share on September 5, 2025, thereby injuring investors.

Contact Us To Participate or Learn More:

If you wish to learn more about this action, or if you have any questions concerning this announcement or your rights or interests with respect to these matters, please contact us.

Charles Linehan, Esq.

Glancy Prongay & Murray LLP

1925 Century Park East, Suite 2100

Los Angeles California 90067

Email: shareholders@glancylaw.com

Telephone: 310-201-9150 (Toll-Free: 888-773-9224)

Visit our website at www.glancylaw.com.

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Whistleblower Notice

Persons with non-public information regarding Quanex should consider their options to aid the investigation or take advantage of the SEC Whistleblower Program. Under the program, whistleblowers who provide original information may receive rewards totaling up to 30 percent of any successful recovery made by the SEC. For more information, call Charles H. Linehan at 310-201-9150 or 888-773-9224 or email shareholders@glancylaw.com.

About Glancy Prongay & Murray LLP

Glancy Prongay & Murray LLP (“GPM”) is a premier law firm representing investors and consumers in securities litigation and other complex class action litigation. GPM has been consistently ranked in the Top 50 Securities Class Action Settlements by ISS Securities Class Action Services. In 2018, GPM was ranked a top five law firm in number of securities class action settlements, and a top six law firm for total dollar size of settlements.

With four offices across the country, GPM’s nearly 40 attorneys have won groundbreaking rulings and recovered billions of dollars for investors and consumers in securities, antitrust, consumer, and employment class actions. GPM’s lawyers have handled cases covering a wide spectrum of corporate misconduct and relating to nearly all industries and sectors. GPM’s past successes have been widely covered by leading news and industry publications such as The Wall Street Journal, The Financial Times, Bloomberg Businessweek, Reuters, the Associated Press, Barron’s, Investor’s Business Daily, Forbes, and Money.

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