Allspring Holds 2.71M Shares (5.9%) of Quanex

Allspring Global Investments Holdings, LLC reported beneficial ownership of 2,707,658 shares of Quanex Building Products Corp Common Stock, representing 5.9% of the class as reported in Amendment No. 5.

Rhea-AI Filing Summary

Allspring Global Investments Holdings, LLC reported beneficial ownership of 2,707,658 shares of Quanex Building Products Corp Common Stock, representing 5.9% of the class as reported in Amendment No. 5. The filing states sole voting power for 2,608,517 shares and sole dispositive power for 2,707,658 shares. The shares are owned of record by clients of investment advisers affiliated with Allspring, and Exhibit A lists related adviser entities. The filing was signed April 13, 2026, and references the reporting date 03/31/2026.

Insights

Institutional Ownership Analyst

Large passive stake disclosed: 2.71M shares (5.9%) held by Allspring-affiliated entities.

Allspring reports beneficial ownership of 2,707,658 shares with sole voting power over 2,608,517 shares as of 03/31/2026. The filing is an amendment to an ownership schedule and identifies adviser subsidiaries in Exhibit A.

Such Schedule 13G/A filings typically reflect investment-manager positions held on behalf of clients; cash‑flow treatment and client identities are not disclosed here. Subsequent filings could show changes if adviser mandates or client decisions alter holdings.

Key Figures

Beneficial ownership: 2,707,658 shares Percent of class: 5.9% Sole voting power: 2,608,517 shares +2 more

5 metrics

Beneficial ownership 2,707,658 shares reported as of 03/31/2026

Percent of class 5.9% percent of common stock reported in the amendment

Sole voting power 2,608,517 shares voting power reported on 03/31/2026

Sole dispositive power 2,707,658 shares dispositive power reported in the Schedule 13G/A

Filing signature date 04/13/2026 signature date on the amendment

Key Terms

Schedule 13G/A, beneficially owned, sole dispositive power

3 terms

Schedule 13G/A regulatory

"Amendment No. 5 ) Quanex Building Products Corp Common Stock"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

beneficially owned financial

"Amount beneficially owned: 2,707,658"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole dispositive power regulatory

"Sole power to dispose or to direct the disposition of: 2,707,658"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does Allspring report in Quanex (NX)?

Allspring reports beneficial ownership of 2,707,658 shares, which equals 5.9% of Quanex's common stock. The filing lists sole voting power for 2,608,517 shares and sole dispositive power for 2,707,658 shares as of 03/31/2026.

When was the ownership report for Allspring filed or signed?

The Schedule 13G/A amendment was signed on 04/13/2026. The ownership figures in the filing reference the reporting date 03/31/2026, per the document header and signature block.

Are the shares held by Allspring directly or on behalf of clients?

The filing states the shares are owned of record by clients of investment advisers affiliated with Allspring. Exhibit A names adviser entities, indicating holdings are on behalf of clients rather than personal holdings.

Does the filing identify any single client holding more than 5%?

The filing explicitly states no client known to Allspring has the right to dividends or sale proceeds for more than 5% of the class, and lists None where such an identification would appear.

What voting and disposition powers does Allspring report?

Allspring reports sole power to vote for 2,608,517 shares, shared voting power of 0, sole dispositive power for 2,707,658 shares, and shared dispositive power of 0.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/14/2026 - 12:47 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 5)

Quanex Building Products Corp

(Name of Issuer)

Common Stock SH

(Title of Class of Securities)

747619104

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 747619104

1

Names of Reporting Persons

Allspring Global Investments Holdings, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 2,608,517.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 2,707,658.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,707,658.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.9 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Quanex Building Products Corp
(b)	Address of issuer's principal executive offices: 1800 West Loop South, Houston, US-TX, 77027, US
Item 2.
(a)	Name of person filing: Allspring Global Investments Holdings, LLC
(b)	Address or principal business office or, if none, residence: 1415 Vantage Park Drive, Charlotte, 28203, North Carolina, United States
(c)	Citizenship: DELAWARE
(d)	Title of class of securities: Common Stock SH
(e)	CUSIP No.:
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 2,707,658
(b)	Percent of class: 5.9 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 2,608,517
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 2,707,658
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. The securities as to which this Schedule is filed are owned of record by clients of one or more investment Advisers identified in Exhibit A directly or indirectly owned by Allspring Global Investments Holdings, LLC. Those Clients have the right to receive, or the power to direct the receipt of, dividends from, or the proceeds for the sale of, such securities. No such client is known to have such right or power with respect to more than five percent of this class of securities, except as follows: None
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See Exhibit A
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Allspring Global Investments Holdings, LLC

Signature:	Jennifer Grunberg
Name/Title:	Senior Compliance Manager
Date:	04/13/2026

Exhibit Information

Exhibit A Subsidiary Allspring Global Investments, LLC* - IA Allspring Funds Management, LLC - IA *Entity beneficially owns 5% or greater of the outstanding shares of the security class being reported on this schedule 13G.