NAPCO SECURITY TECHNOLOGIES (NSSC) Institutional Ownership and Insiders Activity

NAPCO SECURITY TECHNOLOGIES (NSSC) is widely held by institutional investors, with 2 tracked firms reporting positions valued at approximately $38.48M based on SEC Form 13F filings for the quarter ended June 30, 2026.

Fundsmith is the largest disclosed holder, reporting approximately $23.05M in NSSC holdings in its latest filing.

Institutional ownership among tracked investors remains highly concentrated, with Fundsmith representing the majority of disclosed value.