Quanex Building Products
Ownership
Ownership Structure
Who owns Quanex Building Products (NX)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 85.8% of the shares are freely tradable; institutional investors hold 116.0%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 15.76 | 7,221,881 | +0.3 | 03/31/2026 |
| Ameriprise Financial Inc | 5.89 | 2,698,477 | +10.0 | 03/31/2026 |
| Allspring Global Investments Holdings, LLC | 5.20 | 2,383,553 | -12.0 | 06/30/2026 |
| TPG GP A, LLC | 4.48 | 2,054,770 | +0.0 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 4.46 | 2,044,567 | +17.4 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.40 | 2,015,186 | +0.0 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 4.12 | 1,888,591 | +0.0 | 03/31/2026 |
| DePrince Race & Zollo Inc | 4.02 | 1,844,405 | -1.6 | 03/31/2026 |
| Systematic Financial Management LP | 3.88 | 1,776,252 | +0.1 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 6.04 | 2,766,717 | +0.0 | 08/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.