QUANEX BUILDING PRODUCTS (NX) Institutional Shareholders
QUANEX BUILDING PRODUCTS (NX) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $851.41M in NX holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of NX tracked by InsiderSet, reporting ownership valued at approximately $136.09M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $153.12M, representing an estimated gain of +12.51% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 56% of the total disclosed NX value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Ameriprise Financial Inc, Allspring Global Investments Holdings, Llc, and several other long-term asset managers with concentrated positions in QUANEX BUILDING PRODUCTS (NX).
This page ranks the largest institutional NX shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
178
Total Reported Value
$851.41M
Largest Holder
Blackrock, Inc.
Largest Position
$136.09M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
55
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 7,308,772 | $136,089,336 | $153,118,773 | +$17,029,437 | +12.51% | |
| Ameriprise Financial Inc | 0.01% | 2,735,839 | $50,941,322 | $57,315,827 | +$6,374,505 | +12.51% | |
| Allspring Global Investments Holdings, Llc | 0.07% | 2,383,553 | $42,856,282 | $49,935,435 | +$7,079,153 | +16.52% | |
| Tpg Gp A, Llc | 0.76% | 2,054,770 | $38,259,817 | $43,047,432 | +$4,787,615 | +12.51% | |
| Dimensional Fund Advisors Lp | 0.01% | 2,044,567 | $38,068,342 | $42,833,679 | +$4,765,337 | +12.52% | |
| Vanguard Capital Management Llc | 0.00% | 2,020,981 | $37,630,666 | $42,339,552 | +$4,708,886 | +12.51% | |
| Vanguard Portfolio Management Llc | 0.00% | 1,956,415 | $36,428,447 | $40,986,894 | +$4,558,447 | +12.51% | |
| Systematic Financial Management Lp | 0.67% | 1,815,276 | $33,800,460 | $38,030,032 | +$4,229,572 | +12.51% | |
| State Street Corp | 0.00% | 1,801,860 | $33,550,633 | $37,748,967 | +$4,198,334 | +12.51% | |
| Deprince Race & Zollo Inc | 0.63% | 1,844,405 | $33,143,958 | $38,640,285 | +$5,496,327 | +16.58% | |
| American Century Companies Inc | 0.01% | 1,681,135 | $31,302,734 | $35,219,778 | +$3,917,044 | +12.51% | |
| Segall Bryant & Hamill, Llc | 0.29% | 1,320,139 | $24,580,988 | $27,656,912 | +$3,075,924 | +12.51% | |
| Geode Capital Management, Llc | 0.00% | 1,190,006 | $22,162,545 | $24,930,626 | +$2,768,081 | +12.49% | |
| Ies Holdings, Inc. | 6.47% | 1,079,603 | $20,102,208 | $22,617,683 | +$2,515,475 | +12.51% | |
| Healthcare Of Ontario Pension Plan Trust Fund | 0.03% | 1,000,000 | $18,620,000 | $20,950,000 | +$2,330,000 | +12.51% | |
| Nomura Holdings Inc | 0.08% | 967,337 | $18,011,815 | $20,265,710 | +$2,253,895 | +12.51% | |
| Charles Schwab Investment Management Inc | 0.00% | 849,536 | $15,818,360 | $17,797,779 | +$1,979,419 | +12.51% | |
| Sixth Street Partners Management Company, L.P. | 0.00% | 849,536 | $15,818,360 | $17,797,779 | +$1,979,419 | +12.51% | |
| Renaissance Technologies LLC | Jim Simons | 0.02% | 618,708 | $11,520,343 | $12,961,933 | +$1,441,590 | +12.51% |
| Russell Investments Group, Ltd. | 0.01% | 541,534 | $10,083,371 | $11,345,137 | +$1,261,766 | +12.51% | |
| Morgan Stanley | 0.00% | 522,902 | $9,736,459 | $10,954,797 | +$1,218,338 | +12.51% | |
| Bank Of America Corp | 0.00% | 510,246 | $9,500,782 | $10,689,654 | +$1,188,872 | +12.51% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.01% | 474,211 | $8,829,809 | $9,934,720 | +$1,104,911 | +12.51% |
| Northern Trust Corp | 0.00% | 471,559 | $8,780,429 | $9,879,161 | +$1,098,732 | +12.51% | |
| Royce & Associates Lp | 0.07% | 439,357 | $8,180,827 | $9,204,529 | +$1,023,702 | +12.51% | |
| Invesco Ltd. | 0.00% | 410,928 | $7,651,480 | $8,608,942 | +$957,462 | +12.51% | |
| Cramer Rosenthal Mcglynn Llc | 0.33% | 345,889 | $6,440,453 | $7,246,375 | +$805,922 | +12.51% | |
| Castleknight Management Lp | 0.22% | 320,640 | $5,970,317 | $6,717,408 | +$747,091 | +12.51% | |
| Principal Financial Group Inc | 0.00% | 312,167 | $5,812,550 | $6,539,899 | +$727,349 | +12.51% | |
| Vanguard Fiduciary Trust Co | 0.00% | 303,319 | $5,647,800 | $6,354,533 | +$706,733 | +12.51% | |
| Bridgeway Capital Management, Llc | 0.10% | 301,621 | $5,616,183 | $6,318,960 | +$702,777 | +12.51% | |
| Sei Investments Co | 0.00% | 269,825 | $5,024,144 | $5,652,834 | +$628,690 | +12.51% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 268,671 | $5,002,654 | $5,628,657 | +$626,003 | +12.51% | |
| Bank Of New York Mellon Corp | 0.00% | 266,752 | $4,966,916 | $5,588,454 | +$621,538 | +12.51% | |
| Cibc Bancorp Usa Inc. | 0.01% | 242,626 | $4,517,696 | $5,083,015 | +$565,319 | +12.51% | |
| Goldman Sachs Group Inc | 0.00% | 238,832 | $4,447,058 | $5,003,530 | +$556,472 | +12.51% | |
| Aqr Capital Management Llc | 0.00% | 222,333 | $4,139,845 | $4,657,876 | +$518,031 | +12.51% | |
| Empowered Funds, Llc | 0.02% | 204,721 | $3,811,905 | $4,288,905 | +$477,000 | +12.51% | |
| Mufg Securities Emea Plc | 0.04% | 200,000 | $3,724,000 | $4,190,000 | +$466,000 | +12.51% | |
| Universal- Beteiligungs- Und Servicegesellschaft Mbh | 0.00% | 167,901 | $3,126,317 | $3,517,526 | +$391,209 | +12.51% | |
| Public Sector Pension Investment Board | 0.01% | 156,252 | $2,909,412 | $3,273,479 | +$364,067 | +12.51% | |
| Wedge Capital Management L L P/Nc | 0.05% | 150,356 | $2,799,629 | $3,149,958 | +$350,329 | +12.51% | |
| Ing Groep Nv | 0.01% | 150,000 | $2,793,000 | $3,142,500 | +$349,500 | +12.51% | |
| Nuveen, Llc | 0.00% | 146,312 | $2,724,329 | $3,065,236 | +$340,907 | +12.51% | |
| Quantinno Capital Management Lp | 0.00% | 113,798 | $2,118,919 | $2,384,068 | +$265,149 | +12.51% | |
| Rhumbline Advisers | 0.00% | 113,341 | $2,110,392 | $2,374,494 | +$264,102 | +12.51% | |
| Legal & General Group Plc | 0.00% | 107,412 | $2,000,012 | $2,250,281 | +$250,269 | +12.51% | |
| Raymond James Financial Inc | 0.00% | 104,514 | $1,946,051 | $2,189,568 | +$243,517 | +12.51% | |
| Villanova Investment Management Co Llc | 1.82% | 102,960 | $1,917,115 | $2,157,012 | +$239,897 | +12.51% | |
| Vanguard Global Advisers, Llc | 0.00% | 96,950 | $1,805,209 | $2,031,103 | +$225,894 | +12.51% |
Frequently asked questions about NX
Who owns the most NX stock?
The largest holders of NX are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for QUANEX BUILDING PRODUCTS (NX).
Is NX widely held by superinvestors?
Many widely followed stocks like NX appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly NX is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.