Who owns NN (NNBR)
Which tracked institutional funds hold NNBR, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See NNBR company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on NNBR is one-sided between 2026-Q1 and 2026-Q2: 28 added or opened and 2 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
NNBR’s largest tracked holder by dollar value, Legion Partners Asset Management, LLC, sizes it at 42.2% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 42.2pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in NNBR divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 83 tracked filers holding NNBR, 51 increased or opened the position and 28 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in NNBR between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 5
- Ranger Investment Management, L.P.$2M
- Walleye Capital LLC$2M
- OAKTREE CAPITAL MANAGEMENT LP$2M
- Oaktree Fund Advisors, LLC$2M
- Huntleigh Advisors, Inc.$2M
Full exits 1
- Nantahala Capital Management, LLC$4M
Largest adds
- Legion Partners Asset Management, LLC$10M
- FIRST MANHATTAN CO. LLC.$7M
- TWO SIGMA INVESTMENTS, LP$6M
- VANGUARD CAPITAL MANAGEMENT LLC$5M
- NOMURA HOLDINGS INC$4M
- Register Financial Advisors LLC$3M
Largest trims
- Corre Partners Management, LLC$5M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Legion Partners Asset Management, LLC trimmed | 4,773,147 | $17M | 15.6% | 2026-Q2 |
| FIRST MANHATTAN CO. LLC. trimmed | 3,303,800 | $12M | 10.8% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 2,037,299 | $7M | 6.7% | 2026-Q2 |
| NOMURA HOLDINGS INC trimmed | 1,796,659 | $6M | 5.9% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 1,663,043 | $6M | 5.4% | 2026-Q2 |
| Register Financial Advisors LLC added | 1,393,406 | $5M | 4.6% | 2026-Q2 |
| Corre Partners Management, LLC trimmed | 1,238,637 | $4M | 4.1% | 2026-Q2 |
| MORGAN STANLEY trimmed | 1,120,202 | $4M | 3.7% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 966,000 | $3M | 3.2% | 2026-Q2 |
| BlackRock, Inc. added | 764,051 | $3M | 2.5% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 647,167 | $2M | 2.1% | 2026-Q2 |
| Ranger Investment Management, L.P. new | 568,235 | $2M | 1.9% | 2026-Q2 |
| Walleye Capital LLC new | 546,652 | $2M | 1.8% | 2026-Q2 |
| De Lisle Partners LLP added | 528,482 | $2M | 1.7% | 2026-Q2 |
| OAKTREE CAPITAL MANAGEMENT LP new | 510,943 | $2M | 1.7% | 2026-Q2 |
| Oaktree Fund Advisors, LLC new | 503,960 | $2M | 1.6% | 2026-Q2 |
| Huntleigh Advisors, Inc. new | 440,100 | $2M | 1.4% | 2026-Q2 |
| Pacific Ridge Capital Partners, LLC trimmed | 410,352 | $1M | 1.3% | 2026-Q2 |
| RBF Capital, LLC trimmed | 387,345 | $1M | 1.3% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 372,334 | $1M | 1.2% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 301,935 | $1M | 1.0% | 2026-Q2 |
| Johnson Financial Group, LLC | 270,494 | $971K | 0.9% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 260,457 | $934K | 0.9% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 226,507 | $813K | 0.7% | 2026-Q2 |
| STATE STREET CORP added | 224,344 | $805K | 0.7% | 2026-Q2 |
| PARADIGM CAPITAL MANAGEMENT INC/NY | 200,000 | $718K | 0.7% | 2026-Q2 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 169,962 | $610K | 0.6% | 2026-Q2 |
| Quadrature Capital Ltd added | 150,940 | $542K | 0.5% | 2026-Q2 |
| Squarepoint Ops LLC trimmed | 146,697 | $527K | 0.5% | 2026-Q2 |
| JANE STREET GROUP, LLC trimmed | 143,805 | $516K | 0.5% | 2026-Q2 |
| UBS Group AG added | 141,540 | $508K | 0.5% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC new | 131,556 | $472K | 0.4% | 2026-Q2 |
| BAILARD, INC. added | 128,402 | $461K | 0.4% | 2026-Q2 |
| NORTHERN TRUST CORP added | 110,332 | $396K | 0.4% | 2026-Q2 |
| Empowered Funds, LLC | 104,459 | $375K | 0.3% | 2026-Q2 |
| J.W. COLE ADVISORS, INC. added | 103,800 | $373K | 0.3% | 2026-Q2 |
| Clearstead Advisors, LLC | 100,000 | $359K | 0.3% | 2026-Q2 |
| ALGERT GLOBAL LLC new | 97,872 | $351K | 0.3% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 97,523 | $350K | 0.3% | 2026-Q2 |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC new | 86,634 | $311K | 0.3% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 82,270 | $296K | 0.3% | 2026-Q2 |
| GABELLI FUNDS LLC | 61,000 | $219K | 0.2% | 2026-Q2 |
| CIBC Bancorp USA Inc. | 60,000 | $215K | 0.2% | 2026-Q2 |
| Point72 Asset Management, L.P. added | 57,560 | $207K | 0.2% | 2026-Q2 |
| Centiva Capital, LP trimmed | 55,306 | $199K | 0.2% | 2026-Q2 |
| BANK OF MONTREAL /CAN/ | 50,000 | $180K | 0.2% | 2026-Q2 |
| LAUREL OAK WEALTH MANAGEMENT, LLC | 50,000 | $180K | 0.2% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 44,909 | $161K | 0.1% | 2026-Q2 |
| Connor, Clark & Lunn Investment Management Ltd. new | 40,263 | $145K | 0.1% | 2026-Q2 |
| Kings Path Partners LLC new | 39,521 | $142K | 0.1% | 2026-Q2 |
| XTX Topco Ltd trimmed | 35,085 | $126K | 0.1% | 2026-Q2 |
| Aster Capital Management (DIFC) Ltd | 56,128 | $118K | 0.1% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 28,401 | $102K | 0.1% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC added | 25,612 | $92K | 0.1% | 2026-Q2 |
| Quinn Opportunity Partners LLC | 25,000 | $90K | 0.1% | 2026-Q2 |
| TWO SIGMA SECURITIES, LLC new | 23,765 | $85K | 0.1% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC trimmed | 23,689 | $85K | 0.1% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 22,528 | $81K | 0.1% | 2026-Q2 |
| Graham Capital Management, L.P. new | 18,950 | $68K | 0.1% | 2026-Q2 |
| Invesco Ltd. trimmed | 17,490 | $63K | 0.1% | 2026-Q2 |
| AXQ CAPITAL, LP new | 17,176 | $62K | 0.1% | 2026-Q2 |
| Vanguard Global Advisers, LLC | 15,523 | $56K | 0.1% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 15,224 | $55K | 0.0% | 2026-Q2 |
| Ameritas Advisory Services, LLC added | 15,000 | $54K | 0.0% | 2026-Q2 |
| Nierenberg Investment Management Company, LLC | 13,555 | $49K | 0.0% | 2026-Q2 |
| AssuredPartners Investment Advisors, LLC new | 12,199 | $44K | 0.0% | 2026-Q2 |
| AIGH Capital Management LLC new | 11,496 | $41K | 0.0% | 2026-Q2 |
| Addison Advisors LLC | 10,822 | $39K | 0.0% | 2026-Q2 |
| GROUP ONE TRADING LLC added | 5,711 | $21K | 0.0% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 5,283 | $19K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) added | 3,539 | $13K | 0.0% | 2026-Q2 |
| MCGUIRE CAPITAL ADVISORS INC new | 1,500 | $5K | 0.0% | 2026-Q2 |
| BARCLAYS PLC trimmed | 937 | $3K | 0.0% | 2026-Q2 |
| NVWM, LLC new | 600 | $2K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 622 | $2K | 0.0% | 2026-Q2 |
| Caitong International Asset Management Co., Ltd added | 427 | $2K | 0.0% | 2026-Q2 |
| OSAIC HOLDINGS, INC. new | 300 | $1K | 0.0% | 2026-Q2 |
| Bogart Wealth, LLC new | 211 | $757 | 0.0% | 2026-Q2 |
| SBI Securities Co., Ltd. added | 140 | $503 | 0.0% | 2026-Q2 |
| Rockefeller Capital Management L.P. | 100 | $359 | 0.0% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS | 75 | $269 | 0.0% | 2026-Q2 |
| Friedenthal Financial new | 2 | $8 | 0.0% | 2026-Q2 |
| Quantbot Technologies LP new | 1 | $4 | 0.0% | 2026-Q2 |
| Nantahala Capital Management, LLC | 2,441,416 | $4M | 3.2% | 2026-Q1 stale (1 quarter behind) |
| GSA CAPITAL PARTNERS LLP trimmed | 265,333 | $385K | 0.4% | 2026-Q1 stale (1 quarter behind) |
| MARSHALL WACE, LLP trimmed | 115,879 | $168K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| ACADIAN ASSET MANAGEMENT LLC added | 114,535 | $165K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| Corient Private Wealth LLC added | 72,500 | $105K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| HRT FINANCIAL LP new | 28,423 | $41K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| WYNNEFIELD CAPITAL INC | 28,128 | $41K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| VANGUARD GROUP INC added | 2,202,313 | $3M | 2.6% | 2025-Q4 stale (2 quarters behind) |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. new | 179,677 | $230K | 0.2% | 2025-Q4 stale (2 quarters behind) |
| CAPTRUST FINANCIAL ADVISORS new | 70,012 | $90K | 0.1% | 2025-Q4 stale (2 quarters behind) |
| Ancora Advisors LLC added | 290,770 | $599K | 0.5% | 2025-Q3 stale (3 quarters behind) |
| Point72 Asia (Singapore) Pte. Ltd. trimmed | 18,657 | $38K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| Y-Intercept (Hong Kong) Ltd new | 163,387 | $343K | 0.3% | 2025-Q2 stale (4 quarters behind) |
| HSBC HOLDINGS PLC added | 57,753 | $119K | 0.1% | 2025-Q2 stale (4 quarters behind) |
| Jain Global LLC new | 44,219 | $93K | 0.1% | 2025-Q2 stale (4 quarters behind) |
| JACOBS LEVY EQUITY MANAGEMENT, INC new | 17,758 | $37K | 0.0% | 2025-Q2 stale (4 quarters behind) |
| Hudson Bay Capital Management LP new | 13,840 | $29K | 0.0% | 2025-Q2 stale (4 quarters behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.