NAPCO SECURITY TECHNOLOGIES

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NSSC·630402105·US·Common Stock·Industrials - Security & Protection Services-13D/G

NSSC (NAPCO SECURITY TECHNOLOGIES) is held by 133 institutional investors as of Q2 2026. Largest holders: BlackRock, Inc. ($213.9M), VANGUARD CAPITAL MANAGEMENT LLC ($58M), STATE STREET CORP ($57.4M). Net institutional sentiment: Mixed.

133

Holders

(8 Elite)

$1B

Total Value

54% (133)

Consensus

72 buying - 61 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Institutional (13F)69

Insider (Form 4)84

Activist (13D/13G)46

Congressional (STOCK Act)30

Holder Quality

20

★★★★★

Elite

26

★★★★

Strong

28

★★★

Solid

66

★★

Below

59

★

Weak

Held by 133 funds

8 elite

Who's Trading

Source dates: Price Aug 27, 2026 · Insiders Aug 28, 2026 · Activists Aug 4, 2026 · Congress none

InsiderSRSOLOWAY RICHARDSell $13.1MAug 27, 2026

InsiderSASoloway Donna AnneSell $726KAug 27, 2026

InsiderSRSOLOWAY RICHARDSell $3.4MAug 26, 2026

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Top Holders

Top Holders (133)History

AllNewIncreasedHeldDecreasedExited

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Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Decreased	5.6M(-0.9%)	$213.9M	0.0%	-8.10%	0
VAVANGUARD CAPITAL MANAGEMENT LLC	Increased	1.5M(+1.4%)	$58M	0.0%	-17.21%	30
STATE STREET CORP	Increased	1.5M(+5.1%)	$57.4M	0.0%	-6.91%	31
VPVANGUARD PORTFOLIO MANAGEMENT LLC	Increased	1.5M(+2.1%)	$56.8M	0.0%	-17.15%	30
FIRST TRUST ADVISORS LP	Increased	1.3M(+90.3%)	$49.5M	0.0%	-11.20%	46
GEODE CAPITAL MANAGEMENT, LLC	Increased	1.2M(+8.0%)	$45.5M	0.0%	+27.12%	32
WELLINGTON MANAGEMENT GROUP LLP	Increased	1.1M(+18.6%)	$41.9M	0.0%	+15.98%	34
MORGAN STANLEY	Increased	959,777(+106.5%)	$36.5M	0.0%	-9.42%	47
DIMENSIONAL FUND ADVISORS LP	Increased	725,550(+3.2%)	$27.6M	0.0%	-0.86%	30
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	Decreased	697,937(-17.5%)	$26.5M	0.0%	-12.15%	0
NORTHERN TRUST CORP	Increased	610,616(+4.5%)	$23.2M	0.0%	+27.05%	30
Fundsmith LLP	Increased	606,974(+58.2%)	$23.1M	0.2%	-1.74%	50
ROYAL BANK OF CANADA	Decreased	406,408(-14.7%)	$15.4M	0.0%	+12.15%	0
RENAISSANCE TECHNOLOGIES LLC	Decreased	406,200(-7.0%)	$15.4M	0.0%	-10.54%	0
Point72 Asset Management, L.P.	Decreased	379,686(-21.3%)	$14.4M	0.0%	-13.90%	0
ENVESTNET ASSET MANAGEMENT INC	Increased	378,803(+0.8%)	$14.4M	0.0%	+12.24%	28
GOLDMAN SACHS GROUP INC	Decreased	369,290(-8.4%)	$14M	0.0%	+3.24%	0
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Increased	354,531(+4.7%)	$13.5M	0.0%	+23.45%	29
Bank of New York Mellon Corp	Increased	311,009(+2.6%)	$11.8M	0.0%	+8.36%	29
AQR CAPITAL MANAGEMENT LLC	Increased	295,923(+3.8%)	$11.2M	0.0%	+19.60%	29

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High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer