NSSC · NASDAQ · Security & Protection Services

Napco Security Technologies (NSSC)

Builds locks, alarms, access-control systems, and cellular security services for dealers and installers.

$35.88
After hours−0.03 (−0.08%)
At close$35.91(+0.25%)

13F · 13D/G · Form 4

Institutions≈ 102.73%36.74M shares
262 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail
Insiders2.07%739.4K shares
4 holders · as of Aug 28, 2026
Adds to104.80%

35.77M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing

This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.

These groups come from separate filings that can overlap, so they add to 104.80%; nothing is left for Other.

13F · 13D/G · Form 4

HolderStakeSharesDate
BlackRock, Inc.Institution
15.75%5.63Mas of Jun 30, 2026
Copeland Capital Management, LLCInstitution
5.64%2.02Mas of Jun 30, 2026
Jupiter Topco LLCInstitution
4.70%1.68Mas of Jun 30, 2026
Vanguard Capital Management LLCInstitution
4.27%1.53Mas of Jun 30, 2026
State Street CorpInstitution
4.21%1.50Mas of Jun 30, 2026
Vanguard Portfolio Management LLCInstitution
4.18%1.49Mas of Jun 30, 2026
First Trust Advisors LPInstitution
3.65%1.30Mas of Jun 30, 2026
Geode Capital Management, LLCInstitution
3.35%1.20Mas of Jun 30, 2026
Wellington Management Group LLPInstitution
3.08%1.10Mas of Jun 30, 2026
Morgan StanleyInstitution
2.68%959,777as of Jun 30, 2026
Dimensional Fund Advisors LPInstitution
2.03%725,550as of Jun 30, 2026
Arrowstreet Capital, Limited PartnershipInstitution
1.95%697,937as of Jun 30, 2026
Doma Perpetual Capital Management LLCInstitution
1.76%627,931as of Jun 30, 2026
Richard SolowayInsiderdirector, officer: Founder and Executive Chairman
1.74%621,958filed Aug 28, 2026
Northern Trust CorpInstitution
1.71%610,616as of Jun 30, 2026
Fundsmith LLPInstitution
1.70%606,974as of Jun 30, 2026
Bessemer Group IncInstitution
1.20%430,452as of Jun 30, 2026
Deprince Race & Zollo IncInstitution
1.14%408,632as of Jun 30, 2026
Royal Bank of CanadaInstitution
1.14%406,408as of Jun 30, 2026
Renaissance Technologies LLCInstitution
1.14%406,200as of Jun 30, 2026
Point72 Asset Management, L.P.Institution
1.06%379,686as of Jun 30, 2026
Envestnet Asset Management IncInstitution
1.06%378,803as of Jun 30, 2026
Goldman Sachs Group IncInstitution
1.03%369,290as of Jun 30, 2026
Charles Schwab Investment Management IncInstitution
0.99%354,531as of Jun 30, 2026
Sixth Street Partners Management Company, L.P.Institution
0.99%354,531as of Jun 30, 2026

13F, as of Jun 30, 2026

262 holders · 36.74M shares · 31 new positions · 137 increased · 93 reduced · 41 closed

HolderShares% outstandingChg q/qFiled
BlackRock, Inc.5.63M15.75%−49.1KAug 7, 2026
Copeland Capital Management, LLC2.02M5.64%+7.8KAug 4, 2026
Jupiter Topco LLC1.68M4.70%+1.68MnewAug 14, 2026
Vanguard Capital Management LLC1.53M4.27%+21.6KAug 13, 2026
State Street Corp1.50M4.21%+73.3KAug 7, 2026
Vanguard Portfolio Management LLC1.49M4.18%+30.2KAug 13, 2026
First Trust Advisors LP1.30M3.65%+618.9KAug 11, 2026
Geode Capital Management, LLC1.20M3.35%+88.9KAug 12, 2026

13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
BlackRock, Inc.15.00%5.35M13GApr 7, 2026
Copeland Capital Management, LLC5.65%2.02M13GAug 4, 2026
Vanguard Capital Management5.02%1.79M13GJul 31, 2026

Form 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Aug 27, 2026
Richard Solowaydirector, officer: Founder and Executive Chairman
Sale379,529$34.50621,958
Aug 26, 2026
Richard Solowaydirector, officer: Founder and Executive Chairman
Sale95,471$35.931,001,487
Aug 27, 2026
Donna Anne Solowaydirector
Sale20,962$34.620
Aug 26, 2026
Donna Anne Solowaydirector
Sale28,000$35.9820,962
Mar 3, 2026
Richard Solowaydirector, officer: CEO, Chairman of Board, Secy
Sale55,318$43.221,096,958
Mar 2, 2026
Richard Solowaydirector, officer: CEO, Chairman of Board, Secy
Sale129,682$44.991,152,276
Feb 5, 2026
Richard Solowaydirector, officer: CEO, Chairman of Board, Secy
Sale150,000$42.741,256,010
Nov 17, 2025
Stephen M. Spinelliofficer: Senior Vice president of Sales
Sale19,000$40.25928

House and Senate disclosures

Not reported.