NNBR · Nn Inc

$3.31 -0.03 (-0.90%) At close · Jul 31

Market Cap

$174.68M

52.77M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.

Report Date:

Holders: 72

Total Value: $49,474,583

Total Shares: 31,587,725

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 66 13F filers

Top Holder

19.9%

of institutional value

Top 5

59.9%

of institutional value

Top 10

80.3%

of institutional value

HHI

957

Broadly held

Showing 73 of 73

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Micro Corre Partners Management, LLC

$8,998,164

18.19%

6,205,631

Small Legion Partners Asset Management, LLC

$6,948,297

14.04%

4,791,929

Small Register Financial Advisors LLC

$5,002,327

10.11%

1,393,406

Large FIRST MANHATTAN CO. LLC.

$4,838,360

9.78%

3,336,800

Mid Nantahala Capital Management, LLC

$3,540,053

7.16%

2,441,416

Large NOMURA HOLDINGS INC

$2,820,006

5.70%

1,944,832

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NOMURA GLOBAL FINANCIAL PRODUCTS INC	1,944,832	$2,820,006	100.0%	Defined

Mega VANGUARD CAPITAL MANAGEMENT LLC

$2,800,983

5.66%

1,931,713

Mega MORGAN STANLEY

$2,227,294

4.50%

1,536,066

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY SMITH BARNEY LLC	36,171	$52,447	2.4%	Defined
MS Capital Partners Adviser Inc	1,499,895	$2,174,847	97.6%	Defined

Mid RBF Capital, LLC

$1,210,647

2.45%

834,929

Mega BlackRock, Inc.

$1,075,597

2.17%

741,792

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BlackRock Investment Management, LLC	9,586	$13,899	1.3%	Sole
BlackRock Fund Advisors	116,727	$169,254	15.7%	Sole
BlackRock Institutional Trust Company, N.A.	615,479	$892,444	83.0%	Sole

Mega GEODE CAPITAL MANAGEMENT, LLC

$973,946

1.97%

671,688

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	96,435	$139,830	14.4%	Defined
Held directly	575,253	$834,116	85.6%	Defined

Large RENAISSANCE TECHNOLOGIES LLC

$796,108

1.61%

549,040

Small De Lisle Partners LLP

$676,310

1.37%

466,421

Small Pacific Ridge Capital Partners, LLC

$599,656

1.21%

413,556

Mid BAILARD, INC.

$460,963

0.93%

128,402

Mega CITADEL ADVISORS LLC

$427,069

0.86%

294,531

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	205,932	$298,601	69.9%	Defined
Held directly	88,599	$128,468	30.1%	Defined

Mega DIMENSIONAL FUND ADVISORS LP

$408,926

0.83%

282,019

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Dimensional Fund Advisors Ltd.	3,516	$5,098	1.2%	Defined
DFA Australia Ltd.	2,700	$3,915	1.0%	Defined
Dimensional Ireland Ltd	36,457	$52,862	12.9%	Defined
Held directly	239,346	$347,051	84.9%	Sole

Large Squarepoint Ops LLC

$402,266

0.81%

277,425

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	277,425	$402,266	100.0%	Defined

Small Johnson Financial Group, LLC

$392,216

0.79%

270,494

Mid GSA CAPITAL PARTNERS LLP

$384,732

0.78%

265,333

Mega JANE STREET GROUP, LLC

$382,741

0.77%

263,960

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	143,066	$207,445	54.2%	Defined
Jane Street Global Trading, LLC	120,894	$175,296	45.8%	Defined

Mid J.W. COLE ADVISORS, INC.

$372,642

0.75%

103,800

Mega VANGUARD FIDUCIARY TRUST CO Bank

$369,861

0.75%

255,077

Mega STATE STREET CORP

$305,238

0.62%

210,509

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS TRUST COMPANY	210,509	$305,238	100.0%	Defined

Mid PARADIGM CAPITAL MANAGEMENT INC/NY

$290,000

0.59%

200,000

Mega GOLDMAN SACHS GROUP INC

$251,778

0.51%

173,640

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	173,640	$251,778	100.0%	Defined

Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC

$246,444

0.50%

169,962

Small LAUREL OAK WEALTH MANAGEMENT, LLC

$179,500

0.36%

50,000

Large MARSHALL WACE, LLP

$168,024

0.34%

115,879

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	115,879	$168,024	100.0%	Other

Large ACADIAN ASSET MANAGEMENT LLC

$166,075

0.34%

114,535

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Acadian Inc	114,535	$166,075	100.0%	Defined

Large Empowered Funds, LLC

$151,465

0.31%

104,459

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Bridgeway Capital Management, LLC	104,459	$151,465	100.0%	Other

Mid XTX Topco Ltd

$149,595

0.30%

103,169

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	103,169	$149,595	100.0%	Defined

Mid Clearstead Advisors, LLC

$145,000

0.29%

100,000

Micro Kings Path Partners LLC

$141,880

0.29%

39,521

Mega NORTHERN TRUST CORP Bank

$125,043

0.25%

86,237

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	86,237	$125,043	100.0%	Defined

Large Corient Private Wealth LLC

$105,125

0.21%

72,500

Mega PRICE T ROWE ASSOCIATES INC /MD/

$91,586

0.19%

63,163

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
T. Rowe Price International Ltd	63,163	$91,586	100.0%	Defined

Large GABELLI FUNDS LLC

$88,450

0.18%

61,000

Large CIBC Bancorp USA Inc. Bank

$87,000

0.18%

60,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CIBC WORLD MARKETS CORP	60,000	$87,000	100.0%	Defined

Large Centiva Capital, LP

$83,390

0.17%

57,511

Mega BANK OF MONTREAL /CAN/ Bank

$72,500

0.15%

50,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BMO NESBITT BURNS INC.	50,000	$72,500	100.0%	Defined

Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP

$63,177

0.13%

43,571

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
G1 EXECUTION SERVICES, LLC	43,571	$63,177	100.0%	Other

Large HRT FINANCIAL LP

$41,213

0.08%

28,423

Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$41,181

0.08%

28,401

Small WYNNEFIELD CAPITAL INC

$40,785

0.08%

28,128

Mega BANK OF AMERICA CORP /DE/ Bank

$39,186

0.08%

27,025

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BOFA SECURITIES, INC.	27,025	$39,186	100.0%	Defined

Mid Quinn Opportunity Partners LLC

$36,250

0.07%

25,000

Mid Quadrature Capital Ltd

$30,162

0.06%

20,802

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Quadrature US Inc.	20,802	$30,162	100.0%	Other

Mega Invesco Ltd.

$27,655

0.06%

19,073

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Capital Management LLC	19,073	$27,655	100.0%	Defined

Mega Vanguard Global Advisers, LLC

$22,508

0.05%

15,523

Mid Virtu Financial LLC

$21,886

0.04%

15,094

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	15,094	$21,886	100.0%	Defined

Small Nierenberg Investment Management Company, LLC

$19,654

0.04%

13,555

Large Point72 Asset Management, L.P.

$18,881

0.04%

13,022

Large Schonfeld Strategic Advisors LLC

$17,154

0.03%

11,831

Large Qube Research & Technologies Ltd

$16,936

0.03%

11,680

Mega JANE STREET GROUP, LLC

$16,385

0.03%

11,300

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	11,200	$16,240	99.1%	Defined
Jane Street Options, LLC	100	$145	0.9%	Defined

Small Addison Advisors LLC

$15,691

0.03%

10,822

Mega TWO SIGMA INVESTMENTS, LP

$14,790

0.03%

10,200

Mega UBS Group AG

$14,438

0.03%

9,958

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	190	$275	1.9%	Defined
UBS Securities LLC	9,768	$14,163	98.1%	Defined

Small Covestor Ltd

$6,330

0.01%

4,366

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Darlington Capital Management	4,366	$6,330	100.0%	Other
Held directly	0	$0	0.0%	Sole

Mega JPMORGAN CHASE & CO

$3,855

0.01%

2,659

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities LLC	2,529	$3,667	95.1%	Defined
J.P. Morgan Securities plc	130	$188	4.9%	Defined

Small NVWM, LLC

$2,154

0.00%

600

Mid Tower Research Capital LLC (TRC)

$1,985

0.00%

1,369

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Latour Trading LLC (Latour)	1,369	$1,985	100.0%	Defined

Mega CITIGROUP INC

$1,876

0.00%

1,294

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	1,294	$1,876	100.0%	Defined

Mid Optiver Holding B.V.

$996

0.00%

687

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Optiver VOF	687	$996	100.0%	Defined

Mid Bogart Wealth, LLC

$757

0.00%

211

Mega ROYAL BANK OF CANADA Bank

$659

0.00%

455

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Capital Markets, LLC	388	$562	85.3%	Defined
Held directly	67	$97	14.7%	Sole

Mid SBI Securities Co., Ltd. Broker-Dealer

$502

0.00%

140

Large Rockefeller Capital Management L.P.

$145

0.00%

100

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
ROCKEFELLER FINANCIAL LLC	100	$145	100.0%	Defined

Mega BNP PARIBAS ARBITRAGE, SA

$108

0.00%

Small Caitong International Asset Management Co., Ltd

$10

0.00%

Mid Arax Advisory Partners

$10

0.00%

Micro Friedenthal Financial

0.00%

Key facts CIK 918541 CUSIP 629337106 13F (30d) 13 filings 11 filers Visit website Investor relations