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Napco Security Technologies, Inc

NSSC
Exchange
Nasdaq
Industry
Communications Equipment, NEC
SEC CIK
0000069633

In the last 90 days, Napco Security Technologies, Inc insiders filed 0 open-market purchases and 2 sales; 258 institutions reported holding it in 13F filings for Q2 2026, worth $1.37B in total; Fundsmith is the only superinvestor holding it.

Superinvestors holding NSSC, Q2 2026

1 superinvestor reports holding Napco Security Technologies, Inc on Form 13F, worth $23.1M in total. Weight is Napco Security Technologies, Inc's share of each 13F portfolio; actions compare shares with Q1 2026.

See all superinvestors
Superinvestors holding NSSC in Q2 2026
Superinvestor% of portfolioSharesValuevs. previous quarter
FundsmithTerry Smith0.2%606,974$23.1MAdded+58.2%

Moves by quarter

Superinvestors that opened, added to, trimmed or sold out of NSSC each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.

  1. Q2 2026

    1 superinvestor holding at quarter end

    Added
    Fundsmith (+58.2%)
  2. Q1 2026

    1 superinvestor holding at quarter end

    Reduced
    Fundsmith (−78.4%)
  3. Q3 2025

    1 superinvestor holding at quarter end

    Added
    Fundsmith (+86.4%)
  4. Q2 2025

    1 superinvestor holding at quarter end

    New
    Fundsmith