Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in NX held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 7.3M | $136.1M | +1.2% | 15.913% | 0.00% |
| 2 | AMERIPRISE FINANCIAL INC | 2.7M | $50.9M | +1.4% | 5.957% | 0.01% |
| 3 | Allspring Global Investments Holdings, LLC | 2.4M | $42.9M | -12.0% | 5.190% | 0.07% |
| 4 | TPG GP A, LLC | 2.1M | $38.3M | 0.0% | 4.474% | 0.76% |
| 5 | DIMENSIONAL FUND ADVISORS LP | 2.0M | $38.1M | +17.4% | 4.452% | 0.01% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 2.0M | $37.6M | +0.3% | 4.400% | 0.00% |
| 7 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.0M | $36.4M | +3.6% | 4.260% | 0.00% |
| 8 | DEPRINCE RACE & ZOLLO INC | 1.8M | $33.9M | -1.3% | 3.964% | 0.57% |
| 9 | SYSTEMATIC FINANCIAL MANAGEMENT LP | 1.8M | $33.8M | +2.2% | 3.952% | 0.67% |
| 10 | STATE STREET CORP | 1.8M | $33.6M | +2.6% | 3.923% | 0.00% |
| 11 | AMERICAN CENTURY COMPANIES INC | 1.7M | $31.3M | +140.5% | 3.660% | 0.01% |
| 12 | SEGALL BRYANT & HAMILL, LLC | 1.3M | $24.6M | +7.5% | 2.874% | 0.29% |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 1.2M | $22.2M | +8.2% | 2.591% | 0.00% |
| 14 | IES Holdings, Inc. | 1.1M | $20.1M | +25.4% | 2.351% | 6.47% |
| 15 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 1.0M | $18.6M | 0.0% | 2.177% | 0.03% |
| 16 | NOMURA HOLDINGS INC | 967K | $18.0M | -6.6% | 2.106% | 0.02% |
| 17 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 850K | $15.8M | -9.7% | 1.850% | 0.00% |
| 18 | RENAISSANCE TECHNOLOGIES LLC | 619K | $11.5M | -19.7% | 1.347% | 0.02% |
| 19 | Russell Investments Group, Ltd. | 542K | $10.1M | -0.8% | 1.179% | 0.01% |
| 20 | MORGAN STANLEY | 523K | $9.7M | +3.0% | 1.138% | 0.00% |
| 21 | BANK OF AMERICA CORP /DE/ | 510K | $9.5M | -10.0% | 1.111% | 0.00% |
| 22 | First Eagle Investment Management, LLC | 474K | $8.8M | -2.0% | 1.033% | 0.01% |
| 23 | NORTHERN TRUST CORP | 472K | $8.8M | +6.9% | 1.027% | 0.00% |
| 24 | ROYCE & ASSOCIATES LP | 439K | $8.2M | +28.5% | 0.957% | 0.07% |
| 25 | Invesco Ltd. | 411K | $7.7M | +1.5% | 0.895% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in NX — a direct measure of their conviction.
Filings activity in NX during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 180 | 5.8% | 101.03% | +1.87 pp | $839M | +5.0% |
| Q1 2026 | 191 | 3.5% | 99.16% | +6.59 pp | $799M | +26% |
| Q4 2025 | 198 | +3.1% | 92.57% | 6.24 pp | $636M | +0.0% |
| Q3 2025 | 192 | 2.5% | 98.81% | 1.95 pp | $636M | 27% |
| Q2 2025 | 197 | 1.0% | 100.76% | +9.90 pp | $869M | +12% |
| Q1 2025 | 199 | +2.1% | 90.86% | 0.81 pp | $779M | 24% |
| Q4 2024 | 195 | 5.8% | 91.67% | 30.26 pp | $1.02B | 5.6% |
| Q3 2024 | 207 | — | 121.93% | — | $1.08B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying NX stock.
Based on Q2 2026 13F filings, institutional ownership of Quanex Building Products Corporation stands at 101.0%, held across 180 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of NX, with approximately 7,308,772 shares worth $0.14B as of Q2 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of NX, including RENAISSANCE TECHNOLOGIES LLC.
Our composite Smart Money Score for NX is 50 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
12 institutions opened new positions in NX during Q2 2026, while 24 fully exited. 114 added to existing positions and 47 trimmed.
NX institutional ownership rose by 1.87 percentage points quarter-over-quarter, with a net change of -11 holders.
The top 10 institutions account for 57.4% of all reported 13F value in NX, and the top 25 account for 84.2%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Quanex Building Products Corporation (NX) Institutional Ownership