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NSYS · NASDAQ · Medical - Devices

Nortech Systems (NSYS)

Provides electronics manufacturing services for specialized medical, aerospace, industrial, and commercial programs.

$11.55

Pre-market−0.23 (−1.95%)

At close$11.78(+1.23%)

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Breakdown13F · 13D/G · Form 4

Institutions7 holders · as of Mar 31, 2026	3.14%	89.6K shares
Insiders6 holders · as of May 22, 2025	5.02%	143.2K shares
Otherremainder	91.84%	2.62M shares

2.85M company shares as of Sep 3, 2026 · institutions as of Mar 31, 2026 · holders as of their latest filing

Top shareholders13F · 13D/G · Form 4

Holder	Stake	Shares	Evidence
David B. KuninInsiderdirector, 10 percent owner	2.84%	81,162	Form 4filed May 22, 2025 ↗
Renaissance Technologies LLCInstitution	1.54%	43,999	13Fas of Mar 31, 2026
Vanguard Capital Management LLCInstitution	0.98%	27,888	13Fas of Mar 31, 2026
Chevy Chase Trust Holdings, LLCInstitution	0.55%	15,832	13Fas of Mar 31, 2026
Stacy A. KruseInsiderdirector	0.52%	14,857	Form 4filed May 22, 2025 ↗
Ryan McmanusInsiderdirector	0.52%	14,857	Form 4filed May 22, 2025 ↗
Amy S. FredregillInsiderdirector	0.39%	11,107	Form 4filed May 22, 2025 ↗
Jose Antonio PerisInsiderdirector	0.39%	11,107	Form 4filed May 22, 2025 ↗
Debarati SenInsiderdirector	0.36%	10,131	Form 4filed May 22, 2025 ↗
Vanguard Fiduciary Trust CoInstitution	0.05%	1,528	13Fas of Mar 31, 2026
Larson Financial Group LLCInstitution	0.01%	241	13Fas of Mar 31, 2026
FMR LLCInstitution	0.00%	95	13Fas of Mar 31, 2026
Caitong International Asset Management Co., LtdInstitution	0.00%	1	13Fas of Mar 31, 2026
Daniel Ramon Everingham¹Insider10 percent owner	9.48%	270,500	Form 4filed Mar 24, 2022 ↗
Christopher Dean Jones²Insider	1.75%	50,000	Form 4filed Mar 30, 2022 ↗
Jay D. Miller³Insiderdirector, officer: President and CEO	0.97%	27,600	Form 4filed Jan 13, 2022 ↗
Dan Sachs⁴Insiderdirector	0.28%	7,981	Form 4filed Jul 12, 2024 ↗
Steven J. Rosenstone⁵Insiderdirector	0.27%	7,644	Form 4filed May 19, 2023 ↗
Kenneth D. Larson⁶Insiderdirector	0.25%	7,000	Form 4filed Mar 14, 2017 ↗
David J. Graff⁷Insiderdirector	0.21%	6,000	Form 4filed May 16, 2023 ↗
Philip Irving Smith⁸Insiderdirector	0.11%	3,000	Form 4filed Mar 21, 2022 ↗
Constance Beck⁹Insiderofficer: Chief Financial Officer	0.00%	0	Form 4filed Jan 10, 2018 ↗
Heidi B. Grange¹⁰Insiderofficer: Senior Vice President of HR	0.00%	0	Form 4filed Sep 11, 2019 ↗
John Lindeen¹¹Insiderofficer: Sr VP - Global Operations	0.00%	0	Form 4filed Jan 4, 2019 ↗
Matt Mahmood¹²Insiderofficer: Chief Operating Officer	0.00%	0	Form 4filed May 18, 2017 ↗

Last filed Mar 24, 2022; leaving the company requires no filing. Not in the bar.
Last filed Mar 30, 2022; leaving the company requires no filing. Not in the bar.
Last filed Jan 13, 2022; leaving the company requires no filing. Not in the bar.
Last filed Jul 12, 2024; leaving the company requires no filing. Not in the bar.
Last filed May 19, 2023; leaving the company requires no filing. Not in the bar.
Last filed Mar 14, 2017; leaving the company requires no filing. Not in the bar.
Last filed May 16, 2023; leaving the company requires no filing. Not in the bar.
Last filed Mar 21, 2022; leaving the company requires no filing. Not in the bar.
Last filed Jan 10, 2018; leaving the company requires no filing. Not in the bar.
Last filed Sep 11, 2019; leaving the company requires no filing. Not in the bar.
Last filed Jan 4, 2019; leaving the company requires no filing. Not in the bar.
Last filed May 18, 2017; leaving the company requires no filing. Not in the bar.

13F — a manager's quarterly holdings · Form 4 — an insider's transaction report

Institutions13F, as of Mar 31, 2026

7 holders · 89.6K shares · 3 new positions · 3 increased · 1 reduced · 5 closed

Holder	Shares	% outstanding	Chg q/q	Filed
Renaissance Technologies LLC	44.0K	1.54%	−400	May 14, 2026
Vanguard Capital Management LLC	27.9K	0.98%	+27.9Knew	May 15, 2026
Chevy Chase Trust Holdings, LLC	15.8K	0.55%	0	May 15, 2026
Vanguard Fiduciary Trust Co	1.5K	0.05%	+1.5Knew	May 8, 2026
Larson Financial Group LLC	241	0.01%	0	May 15, 2026
FMR LLC	95	0.00%	0	May 15, 2026
Caitong International Asset Management Co., Ltd	1	0.00%	+1new	May 11, 2026

Ownership statements13D/G · 5% or more, as filed

No 13D/G filer at 5% or more on record.

Insider tradesForm 4

Latest trades

Nothing filed in the last 12 months.

CongressHouse and Senate disclosures

Not reported.