Quanex Building Products Corporation
Quanex Building Products Corporation (NX) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · NX · as of Sep 30, 2025
Ownership Breakdown
197
Institutional Holders
▼ 1 vs Q2
$645.06M
Total Inst. Value
▼ $236.53M vs Q2
45.94M
Shares Outstanding
freeFloat 86.19%
45.28M
13F Shares Held
▼ 1.14M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
NX largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. rolling drawing & extruding of nonferrous metals | 7.31M | 15.76% | 15.76% | $103.95B | Nov 12, 2025 | ▼ 192.1K |
VANGUARD GROUP INC rolling drawing & extruding of nonferrous metals | 5.06M | 10.91% | 10.91% | $71.98B | Nov 7, 2025 | ▼ 70.4K |
TELEIOS CAPITAL PARTNERS GMBH rolling drawing & extruding of nonferrous metals | 4.62M | 9.96% | 9.96% | $65.72B | Nov 12, 2025 | — held |
ALLSPRING GLOBAL INVESTMENTS HOLDINGS, LLC rolling drawing & extruding of nonferrous metals | 3.20M | 6.89% | 6.89% | $46.15B | Oct 20, 2025 | ▼ 159.2K |
AMERIPRISE FINANCIAL INC rolling drawing & extruding of nonferrous metals | 2.16M | 4.66% | 4.66% | $30.73B | Nov 14, 2025 | ▼ 114.6K |
STATE STREET CORP rolling drawing & extruding of nonferrous metals | 1.76M | 3.80% | 3.80% | $25.08B | Nov 14, 2025 | ▼ 14.0K |
DEPRINCE RACE & ZOLLO INC rolling drawing & extruding of nonferrous metals | 1.74M | 3.74% | 3.74% | $24.68B | Oct 17, 2025 | ▼ 27.4K |
SYSTEMATIC FINANCIAL MANAGEMENT LP rolling drawing & extruding of nonferrous metals | 1.61M | 3.47% | 3.47% | $22.87B | Nov 13, 2025 | ▲ 325.3K |
DIMENSIONAL FUND ADVISORS LP rolling drawing & extruding of nonferrous metals | 1.56M | 3.37% | 3.37% | $22.23B | Nov 12, 2025 | ▼ 158.0K |
SEGALL BRYANT & HAMILL, LLC rolling drawing & extruding of nonferrous metals | 1.30M | 2.80% | 2.80% | $18.50B | Nov 12, 2025 | ▼ 53.6K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
19
Increased
+1.32M shares5
New Positions
first time holders24
Decreased
−2.29M shares0
Sold Out
fully exitedNet shares change (top 50)
966.9K
+1.32M / −2.29M
Net new holders
+0
5 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
NX insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
5
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Lawler Mary Katherine director | May 28, 2026 | Award | 1,261.29 | — | — | 3.6K | Form 4 ↗ |
LIPPERT JASON director | May 28, 2026 | Award | 1,261.29 | — | — | 19.2K | Form 4 ↗ |
Waltz William E Jr. director | May 28, 2026 | Award | 1,327.67 | — | — | 23.2K | Form 4 ↗ |
Hughes Bradley E. director | May 28, 2026 | Award | 1,725.97 | — | — | 17.6K | Form 4 ↗ |
Shah Manish H director | May 28, 2026 | Award | 1,261.29 | — | — | 7.9K | Form 4 ↗ |
Hughes Bradley E. director | Feb 26, 2026 | Award | 1,370.14 | — | — | 15.8K | Form 4 ↗ |
Shah Manish H director | Feb 26, 2026 | Award | 1,139.09 | — | — | 6.6K | Form 4 ↗ |
Waltz William E Jr. director | Feb 26, 2026 | Award | 1,205.78 | — | — | 21.8K | Form 4 ↗ |
LIPPERT JASON director | Feb 26, 2026 | Award | 1,139.09 | — | — | 17.9K | Form 4 ↗ |
Lawler Mary Katherine director | Feb 26, 2026 | Award | 1,139.09 | — | — | 2.3K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Quanex Building Products Corporation (NX) is primarily owned by institutional investors, who hold approximately 98.6% of total shares outstanding. Company insiders own approximately 13.81%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Quanex Building Products Corporation is BLACKROCK, INC., holding approximately 7.31 million shares — equal to 15.76% of outstanding shares — as of September 30, 2025.
A total of 197 institutional investors currently hold NX stock, with a combined institutional value of approximately $645,059,024 as of the most recent 13F filing period.
Frequently asked questions
NX ownershipQuanex Building Products Corporation (NX) is primarily owned by institutional investors, who hold approximately 98.6% of shares. The largest shareholder is BLACKROCK, INC. with a 15.76% stake. Company insiders hold 13.81%. Data sourced from SEC Form 13F as of September 30, 2025.