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.
13F holders, Q3 2025
Institutional positions in Napco Security Technologies, Inc as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 240
- +22 vs. Q2 2025
- Shares held
- 31.8M
- −313.1K (−1.0%) vs. Q2 2025
- Total value
- $1.37B
- +$412.4M (+43.2%) vs. Q2 2025
- New holders
- 50
- 63 more added
- Sold out
- 28
- 93 more reduced
3 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting NSSC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 258 | $1.37B |
| Q1 2026 | 271 | $1.37B |
| Q4 2025 | 254 | $1.32B |
| Q3 2025 | 240 | $1.37B |
| Q2 2025 | 221 | $960.1M |
| Q1 2025 | 229 | $729.0M |
| Q4 2024 | 251 | $1.20B |
| Q3 2024 | 263 | $1.36B |
| Q2 2024 | 274 | $1.74B |
| Q1 2024 | 240 | $1.27B |
| Q4 2023 | 191 | $1.02B |
| Q3 2023 | 177 | $636.4M |
| Q2 2023 | 228 | $1.12B |
| Q1 2023 | 196 | $1.13B |
| Q4 2022 | 166 | $763.7M |
| Q3 2022 | 150 | $731.3M |
| Q2 2022 | 117 | $513.5M |
| Q1 2022 | 116 | $502.2M |
| Q4 2021 | 127 | $596.6M |
| Q3 2021 | 109 | $528.1M |
| Q2 2021 | 103 | $449.1M |
| Q1 2021 | 104 | $433.4M |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Napco Security Technologies, Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 2,883,885 | $123.9M | 0.00% | −114,716−3.8% | Reduced |
| Vanguard Group Inc | 2,850,419 | $122.4M | 0.00% | −9,016−0.3% | Reduced |
| Fundsmith LLPSuperinvestorFundsmith | 1,779,857 | $76.4M | 0.39% | +824,945+86.4% | Added |
| Janus Henderson Group PLC | 1,524,270 | $65.5M | 0.03% | +55,584+3.8% | Added |
| Copeland Capital Management, LLC | 1,497,512 | $64.3M | 1.34% | −88,172−5.6% | Reduced |
| Doma Perpetual Capital Management LLC | 1,165,347 | $50.1M | 16.81% | −10,308−0.9% | Reduced |
| Geode Capital Management, LLC | 1,024,539 | $44.0M | 0.00% | −7,008−0.7% | Reduced |
| Wellington Management Group LLP | 1,008,857 | $43.3M | 0.01% | −30,365−2.9% | Reduced |
| Arrowstreet Capital, Limited Partnership | 861,141 | $37.0M | 0.02% | +749,065+668.4% | Added |
| State Street Corp | 783,820 | $33.8M | 0.00% | −29,844−3.7% | Reduced |
| Dimensional Fund Advisors LP | 678,085 | $29.1M | 0.01% | −41,260−5.7% | Reduced |
| Royal Bank of Canada | 646,264 | $27.8M | 0.00% | −157,701−19.6% | Reduced |
| Northern Trust Corp | 640,317 | $27.5M | 0.00% | −2,098−0.3% | Reduced |
| First Trust Advisors LP | 565,894 | $24.3M | 0.02% | +565,894 | New |
| Emerald Advisers, LLC | 466,165 | $20.0M | 0.64% | −53,595−10.3% | Reduced |
| Jacobs Levy Equity Management, Inc | 438,327 | $18.8M | 0.07% | +8,004+1.9% | Added |
| Envestnet Asset Management Inc | 422,097 | $18.1M | 0.01% | −221,251−34.4% | Reduced |
| Qube Research & Technologies Ltd | 420,808 | $18.1M | 0.03% | −41,942−9.1% | Reduced |
| Morgan Stanley | 380,594 | $16.3M | 0.00% | −219,920−36.6% | Reduced |
| Deutsche Bank AG | 367,331 | $15.8M | 0.01% | +342,882+1,402.4% | Added |
| Rockefeller Capital Management L.P. | 348,576 | $15.0M | 0.03% | −35,973−9.4% | Reduced |
| AQR Capital Management LLC | 331,506 | $14.2M | 0.01% | +23,627+7.7% | Added |
| Renaissance Technologies LLC | 315,100 | $13.5M | 0.02% | +16,300+5.5% | Added |
| Charles Schwab Investment Management Inc | 306,491 | $13.2M | 0.00% | −28,178−8.4% | Reduced |
| Granite Investment Partners, LLC | 297,704 | $12.8M | 0.73% | −49,466−14.2% | Reduced |
| Visionary Wealth Advisors | 258,559 | $11.1M | 0.52% | −7,700−2.9% | Reduced |
| JPMorgan Chase & Co | 257,403 | $11.1M | 0.00% | −340,149−56.9% | Reduced |
| Bank of America Corp | 251,326 | $10.8M | 0.00% | +1,162+0.5% | Added |
| Goldman Sachs Group Inc | 250,574 | $10.8M | 0.00% | −161,711−39.2% | Reduced |
| Alta Capital Management LLC | 224,118 | $9.63M | 0.54% | −18,296−7.5% | Reduced |
| Adage Capital Partners GP, L.L.C. | 220,000 | $9.45M | 0.01% | +220,000 | New |
| Wasatch Advisors Inc | 217,111 | $9.32M | 0.05% | −3,887−1.8% | Reduced |
| BNP Paribas Arbitrage, SA | 206,512 | $8.87M | 0.01% | +41,712+25.3% | Added |
| Bank of New York Mellon Corp | 199,536 | $8.57M | 0.00% | −1,110−0.6% | Reduced |
| Gamco Investors, Inc. Et Al | 198,000 | $8.50M | 0.08% | 00.0% | Unchanged |
| Voloridge Investment Management, LLC | 197,691 | $8.49M | 0.03% | −121,774−38.1% | Reduced |
| Emerald Mutual Fund Advisers Trust | 189,495 | $8.14M | 0.42% | −38,357−16.8% | Reduced |
| Trexquant Investment LP | 181,698 | $7.80M | 0.08% | +94,749+109.0% | Added |
| Federated Hermes, Inc. | 177,422 | $7.62M | 0.01% | −4,224−2.3% | Reduced |
| Canada Pension Plan Investment Board | 176,200 | $7.57M | 0.01% | −70,200−28.5% | Reduced |
| Congress Asset Management Co | 175,338 | $7.53M | 0.05% | −87,156−33.2% | Reduced |
| Kornitzer Capital Management Inc | 173,580 | $7.46M | 0.15% | 00.0% | Unchanged |
| UBS Group AG | 168,995 | $7.26M | 0.00% | +48,405+40.1% | Added |
| D. E. Shaw & Co., Inc. | 163,896 | $7.04M | 0.01% | −22,920−12.3% | Reduced |
| Citadel Advisors LLC | 162,795 | $6.99M | 0.01% | +50,057+44.4% | Added |
| Rice Hall James & Associates, LLC | 156,368 | $6.72M | 0.37% | −29,989−16.1% | Reduced |
| Russell Investments Group, Ltd. | 141,341 | $6.07M | 0.01% | +10,513+8.0% | Added |
| Algert Global LLC | 135,235 | $5.81M | 0.10% | −66,767−33.1% | Reduced |
| Danske Bank A/S | 131,145 | $5.63M | 0.01% | +131,145 | New |
| CenterBook Partners LP | 130,065 | $5.59M | 0.28% | −142,827−52.3% | Reduced |
| Redmond Asset Management, LLC | 127,594 | $5.48M | 1.35% | −2,031−1.6% | Reduced |
| Point72 Asset Management, L.P. | 127,241 | $5.47M | 0.01% | +48,547+61.7% | Added |
| PDT Partners, LLC | 124,614 | $5.35M | 0.34% | −28,982−18.9% | Reduced |
| Millennium Management LLC | 122,798 | $5.27M | 0.00% | −202,616−62.3% | Reduced |
| Isthmus Partners, LLC | 122,345 | $5.25M | 1.17% | +5,313+4.5% | Added |
| HighTower Advisors, LLC | 121,822 | $5.23M | 0.01% | −11,098−8.3% | Reduced |
| Uniplan Investment Counsel, Inc. | 120,735 | $5.19M | 0.51% | −2,224−1.8% | Reduced |
| Divisadero Street Capital Management, LP | 111,566 | $4.79M | 0.22% | 00.0% | Unchanged |
| Crawford Investment Counsel Inc | 103,750 | $4.46M | 0.07% | +103,750 | New |
| Stifel Financial Corp | 103,098 | $4.43M | 0.00% | −3,217−3.0% | Reduced |
| 4D Advisors, LLC | 100,000 | $4.29M | 2.29% | +100,000 | New |
| American Century Companies Inc | 99,177 | $4.26M | 0.00% | +10,951+12.4% | Added |
| FMR LLC | 97,914 | $4.21M | 0.00% | −333,332−77.3% | Reduced |
| Marshall Wace, LLP | 93,698 | $4.02M | 0.00% | −72,811−43.7% | Reduced |
| Man Group plc | 91,269 | $3.92M | 0.01% | +13,822+17.8% | Added |
| Jump Financial, LLC | 90,400 | $3.88M | 0.05% | −6,375−6.6% | Reduced |
| Tudor Investment Corp Et Al | 89,212 | $3.83M | 0.02% | −108,221−54.8% | Reduced |
| SEI Investments Co | 88,956 | $3.82M | 0.00% | +6,494+7.9% | Added |
| Allianz Asset Management GmbH | 88,513 | $3.80M | 0.00% | +205+0.2% | Added |
| HRT Financial LP | 87,441 | $3.75M | 0.01% | +37,816+76.2% | Added |
| First National Advisers, LLC | 83,812 | $3.60M | 0.49% | +1,398+1.7% | Added |
| McMorgan & Co LLC | 82,551 | $3.55M | 0.55% | −48,522−37.0% | Reduced |
| First National Bank of Omaha | 82,549 | $3.55M | 0.22% | −4,015−4.6% | Reduced |
| Voleon Capital Management LP | 81,948 | $3.52M | 0.09% | −24,794−23.2% | Reduced |
| Verition Fund Management LLC | 81,838 | $3.51M | 0.02% | −35,120−30.0% | Reduced |
| Hantz Financial Services, Inc. | 81,120 | $3.48M | 0.05% | −5,234−6.1% | Reduced |
| Nuveen, LLC | 74,866 | $3.22M | 0.00% | −1,668−2.2% | Reduced |
| New York State Common Retirement Fund | 72,915 | $3.13M | 0.00% | −2,048−2.7% | Reduced |
| Swiss National Bank | 69,500 | $2.99M | 0.00% | 00.0% | Unchanged |
| Bridge City Capital, LLC | 67,823 | $2.91M | 0.78% | −50,392−42.6% | Reduced |
| Principal Financial Group Inc | 66,781 | $2.87M | 0.00% | +33,394+100.0% | Added |
| Engineers Gate Manager LP | 66,022 | $2.84M | 0.03% | +12,667+23.7% | Added |
| Laurus Investment Counsel Inc. | 62,360 | $2.68M | 1.83% | 00.0% | Unchanged |
| Deprince Race & Zollo Inc | 57,731 | $2.48M | 0.05% | −4,908−7.8% | Reduced |
| Barclays PLC | 55,078 | $2.37M | 0.00% | −14,302−20.6% | Reduced |
| Rhumbline Advisers | 51,109 | $2.20M | 0.00% | −1,832−3.5% | Reduced |
| Thrivent Financial for Lutherans | 50,999 | $2.19M | 0.00% | +50,999 | New |
| UBS Asset Management Americas Inc | 49,554 | $2.13M | 0.00% | −40,459−44.9% | Reduced |
| Ieq Capital, LLC | 47,849 | $2.06M | 0.01% | +10,432+27.9% | Added |
| Legal & General Group Plc | 43,937 | $1.89M | 0.00% | +430+1.0% | Added |
| Teachers Retirement System of the State of Kentucky | 43,112 | $1.85M | 0.01% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 43,036 | $1.85M | 0.01% | +38,656+882.6% | Added |
| Linden Thomas Advisory Services, LLC | 42,636 | $1.83M | 0.19% | +1,665+4.1% | Added |
| LPL Financial LLC | 42,448 | $1.82M | 0.00% | +3,439+8.8% | Added |
| Invesco Ltd. | 42,311 | $1.82M | 0.00% | +4,152+10.9% | Added |
| Schonfeld Strategic Advisors LLC | 41,303 | $1.77M | 0.01% | +41,303 | New |
| Susquehanna International Group, LLP | 39,372 | $1.69M | 0.00% | −12,326−23.8% | Reduced |
| CBOE Vest Financial, LLC | 37,537 | $1.61M | 0.02% | +37,537 | New |
| Alliancebernstein L.P. | 36,826 | $1.58M | 0.00% | +474+1.3% | Added |
| Hennion & Walsh Asset Management, Inc. | 35,529 | $1.53M | 0.06% | −20,689−36.8% | Reduced |