Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in NNBR held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Corre Partners Management, LLC | 6.2M | $9.0M | 0.0% | 11.759% | 13.86% |
| 2 | Legion Partners Asset Management, LLC | 4.8M | $6.9M | 0.0% | 9.080% | 5.04% |
| 3 | FIRST MANHATTAN CO | 3.3M | $4.8M | +11.1% | 6.323% | 0.01% |
| 4 | Nantahala Capital Management, LLC | 2.4M | $3.5M | 0.0% | 4.626% | 0.18% |
| 5 | NOMURA HOLDINGS INC | 1.9M | $2.8M | -35.3% | 3.685% | 0.01% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 1.9M | $2.8M | — | 3.660% | 0.00% |
| 7 | MORGAN STANLEY | 1.5M | $2.2M | -0.1% | 2.911% | 0.00% |
| 8 | Register Financial Advisors LLC | 1.3M | $1.9M | +7.4% | 2.485% | 0.70% |
| 9 | RBF Capital, LLC | 835K | $1.2M | +71.8% | 1.582% | 0.06% |
| 10 | BlackRock, Inc. | 742K | $1.1M | +0.8% | 1.406% | 0.00% |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 672K | $974K | +8.3% | 1.273% | 0.00% |
| 12 | RENAISSANCE TECHNOLOGIES LLC | 549K | $796K | +49.4% | 1.040% | 0.00% |
| 13 | De Lisle Partners LLP | 466K | $672K | +13.7% | 0.884% | 0.08% |
| 14 | Pacific Ridge Capital Partners, LLC | 414K | $600K | +3.3% | 0.784% | 0.13% |
| 15 | CITADEL ADVISORS LLC | 295K | $427K | -5.3% | 0.558% | 0.00% |
| 16 | DIMENSIONAL FUND ADVISORS LP | 282K | $409K | -52.0% | 0.534% | 0.00% |
| 17 | Squarepoint Ops LLC | 277K | $402K | +13.7% | 0.526% | 0.00% |
| 18 | Johnson Financial Group, LLC | 270K | $392K | — | 0.513% | 0.03% |
| 19 | VANGUARD FIDUCIARY TRUST CO | 255K | $370K | — | 0.483% | 0.00% |
| 20 | STATE STREET CORP | 211K | $305K | +5.9% | 0.399% | 0.00% |
| 21 | PARADIGM CAPITAL MANAGEMENT INC/NY | 200K | $290K | 0.0% | 0.379% | 0.01% |
| 22 | GOLDMAN SACHS GROUP INC | 174K | $252K | -3.9% | 0.329% | 0.00% |
| 23 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 170K | $246K | 0.0% | 0.322% | 0.00% |
| 24 | MARSHALL WACE, LLP | 116K | $168K | — | 0.220% | 0.00% |
| 25 | Empowered Funds, LLC | 104K | $151K | 0.0% | 0.198% | 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 NNBR — a direct measure of their conviction.
Filings activity in NNBR during Q1 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 |
|---|---|---|---|---|---|---|
| Q1 2026 | 64 | 1.5% | 27.90% | +2.81 pp | $44M | +11% |
| Q4 2025 | 65 | 1.5% | 25.09% | 18.45 pp | $40M | 42% |
| Q3 2025 | 66 | 7.0% | 43.54% | 0.91 pp | $69M | 2.0% |
| Q2 2025 | 71 | 7.8% | 44.45% | 6.63 pp | $70M | 13% |
| Q1 2025 | 77 | +4.1% | 51.08% | 22.51 pp | $81M | 31% |
| Q4 2024 | 74 | 2.6% | 73.59% | 10.71 pp | $117M | 13% |
| Q3 2024 | 76 | +8.6% | 84.30% | +21.34 pp | $133M | +34% |
| Q2 2024 | 70 | — | 62.96% | — | $100M | — |
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 NNBR stock.
Based on Q1 2026 13F filings, institutional ownership of NN, Inc. stands at 27.9%, held across 64 reporting institutions.
Corre Partners Management, LLC is the largest reported institutional holder of NNBR, with approximately 6,205,631 shares worth $0.01B as of Q1 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of NNBR, including RENAISSANCE TECHNOLOGIES LLC, CITADEL ADVISORS LLC.
Our composite Smart Money Score for NNBR is 60 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
13 institutions opened new positions in NNBR during Q1 2026, while 14 fully exited. 37 added to existing positions and 12 trimmed.
NNBR institutional ownership rose by 2.81 percentage points quarter-over-quarter, with a net change of -1 holders.
The top 10 institutions account for 82.3% of all reported 13F value in NNBR, and the top 25 account for 96.9%.
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.
NN, Inc. (NNBR) Institutional Ownership