NAPCO SECURITY TECHNOLOGIES, INC NSSC
CIK 0000069633 · CUSIP 630402105
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $123.86M 2,883,885 shares | 0.00% | -114.72K(-3.80%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $122.43M 2,850,419 shares | 0.00% | -9.02K(-0.30%)Reduced | SEC filing ↗ Nov 7, 2025 | ▾ |
| 03 | Fundsmith LLP CIK 1569205 · View history | $76.44M 1,779,857 shares | 0.39% | +824.95K(+86.40%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 04 | JANUS HENDERSON GROUP PLC CIK 1274173 · View history | $65.47M 1,524,270 shares | 0.03% | +55.58K(+3.80%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 05 | Copeland Capital Management, LLC CIK 1541743 · View history | $64.32M 1,497,512 shares | 1.34% | -88.17K(-5.60%)Reduced | SEC filing ↗ Oct 17, 2025 | ▾ |
| 06 | Doma Perpetual Capital Management LLC CIK 1962221 · View history | $50.05M 1,165,347 shares | 16.81% | -10.31K(-0.90%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 07 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $44.01M 1,024,539 shares | 0.00% | -7.01K(-0.70%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 08 | WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history | $43.33M 1,008,857 shares | 0.01% | -30.36K(-2.90%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 09 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history | $36.99M 861,141 shares | 0.02% | +749.07K(+668.40%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 10 | STATE STREET CORP CIK 93751 · View history | $33.78M 783,820 shares | 0.00% | -29.84K(-3.70%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 11 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $29.12M 678,085 shares | 0.01% | -41.26K(-5.70%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 12 | ROYAL BANK OF CANADA CIK 1000275 · View history | $27.76M 646,264 shares | 0.00% | -157.70K(-19.60%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 13 | NORTHERN TRUST CORP CIK 73124 · View history | $27.50M 640,317 shares | 0.00% | -2.10K(-0.30%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 14 | FIRST TRUST ADVISORS LP CIK 1125816 · View history | $24.31M 565,894 shares | 0.02% | +565.89KNew | SEC filing ↗ Nov 12, 2025 | ▾ |
| 15 | EMERALD ADVISERS, LLC CIK 1015083 · View history | $20.02M 466,165 shares | 0.64% | -53.59K(-10.30%)Reduced | SEC filing ↗ Oct 30, 2025 | ▾ |
| 16 | JACOBS LEVY EQUITY MANAGEMENT, INC CIK 884414 · View history | $18.83M 438,327 shares | 0.07% | +8.00K(+1.90%)Added | SEC filing ↗ Nov 17, 2025 | ▾ |
| 17 | ENVESTNET ASSET MANAGEMENT INC CIK 1407543 · View history | $18.13M 422,097 shares | 0.01% | -221.25K(-34.40%)Reduced | SEC filing ↗ Nov 5, 2025 | ▾ |
| 18 | Qube Research & Technologies Ltd CIK 1729829 · View history | $18.07M 420,808 shares | 0.03% | -41.94K(-9.10%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 19 | MORGAN STANLEY CIK 895421 · Amended · View history | $16.35M 380,594 shares | 0.00% | -219.92K(-36.60%)Reduced | SEC filing ↗ May 27, 2026 | ▾ |
| 20 | DEUTSCHE BANK AG\ CIK 948046 · View history | $15.78M 367,331 shares | 0.01% | +342.88K(+1,402.40%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
Showing 20 / 240 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
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