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, Q4 2025
Institutional positions in Napco Security Technologies, Inc as of Dec 31, 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
- 254
- +18 vs. Q3 2025
- Shares held
- 31.6M
- −198.2K (−0.6%) vs. Q3 2025
- Total value
- $1.32B
- −$48.0M (−3.5%) vs. Q3 2025
- New holders
- 38
- 78 more added
- Sold out
- 20
- 98 more reduced
4 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Napco Security Technologies, Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 3,224,505 | $134.5M | 0.00% | +340,620+11.8% | Added |
| Vanguard Group Inc | 2,882,063 | $120.2M | 0.00% | +31,644+1.1% | Added |
| Fundsmith LLPSuperinvestorFundsmith | 1,779,857 | $74.2M | 0.43% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 1,569,363 | $65.5M | 0.03% | +45,093+3.0% | Added |
| Copeland Capital Management, LLC | 1,420,792 | $59.2M | 1.32% | −76,720−5.1% | Reduced |
| Geode Capital Management, LLC | 1,028,863 | $42.9M | 0.00% | +4,324+0.4% | Added |
| State Street Corp | 896,315 | $37.5M | 0.00% | +112,495+14.4% | Added |
| Wellington Management Group LLP | 879,298 | $36.7M | 0.01% | −129,559−12.8% | Reduced |
| Arrowstreet Capital, Limited Partnership | 864,022 | $36.0M | 0.02% | +2,881+0.3% | Added |
| Divisadero Street Capital Management, LP | 809,729 | $33.8M | 1.92% | +698,163+625.8% | Added |
| First Trust Advisors LP | 714,382 | $29.8M | 0.02% | +148,488+26.2% | Added |
| Dimensional Fund Advisors LP | 671,243 | $28.0M | 0.01% | −6,842−1.0% | Reduced |
| Doma Perpetual Capital Management LLC | 627,931 | $26.2M | 7.36% | −537,416−46.1% | Reduced |
| Northern Trust Corp | 597,918 | $24.9M | 0.00% | −42,399−6.6% | Reduced |
| Royal Bank of Canada | 580,557 | $24.2M | 0.00% | −65,707−10.2% | Reduced |
| Morgan Stanley | 423,516 | $17.7M | 0.00% | +42,922+11.3% | Added |
| Jacobs Levy Equity Management, Inc | 414,990 | $17.3M | 0.07% | −23,337−5.3% | Reduced |
| Qube Research & Technologies Ltd | 376,227 | $15.7M | 0.02% | −44,581−10.6% | Reduced |
| Envestnet Asset Management Inc | 365,742 | $15.3M | 0.00% | −56,355−13.4% | Reduced |
| Renaissance Technologies LLC | 333,200 | $13.9M | 0.02% | +18,100+5.7% | Added |
| Charles Schwab Investment Management Inc | 314,842 | $13.1M | 0.00% | +8,351+2.7% | Added |
| Bank of America Corp | 310,600 | $13.0M | 0.00% | +59,274+23.6% | Added |
| Goldman Sachs Group Inc | 310,269 | $12.9M | 0.00% | +59,695+23.8% | Added |
| AQR Capital Management LLC | 297,027 | $12.4M | 0.01% | −34,479−10.4% | Reduced |
| Granite Investment Partners, LLC | 280,881 | $11.7M | 0.69% | −16,823−5.7% | Reduced |
| Federated Hermes, Inc. | 262,496 | $10.9M | 0.02% | +85,074+48.0% | Added |
| Visionary Wealth Advisors | 262,462 | $10.9M | 0.49% | +3,903+1.5% | Added |
| Point72 Asset Management, L.P. | 257,840 | $10.8M | 0.02% | +130,599+102.6% | Added |
| Adage Capital Partners GP, L.L.C. | 243,510 | $10.2M | 0.02% | +23,510+10.7% | Added |
| BNP Paribas Arbitrage, SA | 219,884 | $9.17M | 0.01% | +13,372+6.5% | Added |
| Wasatch Advisors Inc | 219,113 | $9.14M | 0.05% | +2,002+0.9% | Added |
| Bank of New York Mellon Corp | 215,960 | $9.01M | 0.00% | +16,424+8.2% | Added |
| Tudor Investment Corp Et Al | 200,489 | $8.36M | 0.05% | +111,277+124.7% | Added |
| Alta Capital Management LLC | 199,666 | $8.33M | 0.55% | −24,452−10.9% | Reduced |
| Gamco Investors, Inc. Et Al | 188,400 | $7.86M | 0.08% | −9,600−4.8% | Reduced |
| Voloridge Investment Management, LLC | 185,645 | $7.74M | 0.03% | −12,046−6.1% | Reduced |
| Captrust Financial Advisors | 185,462 | $7.73M | 0.01% | +185,462 | New |
| Congress Asset Management Co | 181,393 | $7.56M | 0.05% | +6,055+3.5% | Added |
| Canada Pension Plan Investment Board | 177,100 | $7.39M | 0.00% | +900+0.5% | Added |
| Kornitzer Capital Management Inc | 170,304 | $7.10M | 0.15% | −3,276−1.9% | Reduced |
| Algert Global LLC | 157,265 | $6.56M | 0.10% | +22,030+16.3% | Added |
| Russell Investments Group, Ltd. | 146,957 | $6.13M | 0.01% | +5,616+4.0% | Added |
| Rice Hall James & Associates, LLC | 144,925 | $6.04M | 0.33% | −11,443−7.3% | Reduced |
| Citadel Advisors LLC | 142,545 | $5.94M | 0.00% | −20,250−12.4% | Reduced |
| CenterBook Partners LP | 133,350 | $5.56M | 0.27% | +3,285+2.5% | Added |
| Trexquant Investment LP | 132,041 | $5.51M | 0.05% | −49,657−27.3% | Reduced |
| UBS Asset Management Americas Inc | 131,083 | $5.47M | 0.00% | +81,529+164.5% | Added |
| Danske Bank A/S | 130,235 | $5.43M | 0.01% | −910−0.7% | Reduced |
| Redmond Asset Management, LLC | 125,327 | $5.23M | 1.33% | −2,267−1.8% | Reduced |
| PDT Partners, LLC | 124,614 | $5.20M | 0.34% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 122,855 | $5.12M | 0.01% | +1,033+0.8% | Added |
| Isthmus Partners, LLC | 121,917 | $5.08M | 0.56% | −428−0.3% | Reduced |
| Uniplan Investment Counsel, Inc. | 120,416 | $5.02M | 0.50% | −319−0.3% | Reduced |
| Man Group plc | 119,324 | $4.98M | 0.01% | +28,055+30.7% | Added |
| Crawford Investment Counsel Inc | 117,680 | $4.91M | 0.08% | +13,930+13.4% | Added |
| Rockefeller Capital Management L.P. | 115,756 | $4.83M | 0.01% | −232,820−66.8% | Reduced |
| American Century Companies Inc | 103,130 | $4.30M | 0.00% | +3,953+4.0% | Added |
| Deutsche Bank AG | 101,800 | $4.25M | 0.00% | −265,531−72.3% | Reduced |
| 4D Advisors, LLC | 100,000 | $4.17M | 2.29% | 00.0% | Unchanged |
| Marshall Wace, LLP | 98,006 | $4.09M | 0.00% | +4,308+4.6% | Added |
| Stifel Financial Corp | 96,718 | $4.03M | 0.00% | −6,380−6.2% | Reduced |
| SEI Investments Co | 94,514 | $3.94M | 0.00% | +5,558+6.2% | Added |
| HRT Financial LP | 88,795 | $3.70M | 0.01% | +1,354+1.5% | Added |
| First National Advisers, LLC | 82,656 | $3.45M | 0.47% | −1,156−1.4% | Reduced |
| Voleon Capital Management LP | 82,477 | $3.44M | 0.07% | +529+0.6% | Added |
| First National Bank of Omaha | 81,034 | $3.38M | 0.10% | −1,515−1.8% | Reduced |
| Allianz Asset Management GmbH | 80,150 | $3.34M | 0.00% | −8,363−9.4% | Reduced |
| D. E. Shaw & Co., Inc. | 75,362 | $3.14M | 0.00% | −88,534−54.0% | Reduced |
| SG Capital Management LLC | 74,221 | $3.10M | 0.34% | +74,221 | New |
| Hantz Financial Services, Inc. | 74,106 | $3.09M | 0.05% | −7,014−8.6% | Reduced |
| Nuveen, LLC | 73,770 | $3.08M | 0.00% | −1,096−1.5% | Reduced |
| Millennium Management LLC | 73,487 | $3.06M | 0.00% | −49,311−40.2% | Reduced |
| New York State Common Retirement Fund | 72,915 | $3.04M | 0.00% | 00.0% | Unchanged |
| Deprince Race & Zollo Inc | 72,024 | $3.00M | 0.06% | +14,293+24.8% | Added |
| JPMorgan Chase & Co | 70,437 | $2.94M | 0.00% | −186,966−72.6% | Reduced |
| Swiss National Bank | 70,400 | $2.94M | 0.00% | +900+1.3% | Added |
| UBS Group AG | 70,143 | $2.92M | 0.00% | −98,852−58.5% | Reduced |
| Barclays PLC | 68,958 | $2.88M | 0.00% | +13,880+25.2% | Added |
| Engineers Gate Manager LP | 67,582 | $2.82M | 0.03% | +1,560+2.4% | Added |
| Principal Financial Group Inc | 66,330 | $2.77M | 0.00% | −451−0.7% | Reduced |
| Verition Fund Management LLC | 63,535 | $2.65M | 0.01% | −18,303−22.4% | Reduced |
| Acadian Asset Management LLC | 61,117 | $2.54M | 0.00% | +41,083+205.1% | Added |
| Walleye Capital LLC | 60,108 | $2.51M | 0.01% | +60,108 | New |
| Bridge City Capital, LLC | 59,438 | $2.48M | 0.73% | −8,385−12.4% | Reduced |
| Jump Financial, LLC | 56,580 | $2.36M | 0.03% | −33,820−37.4% | Reduced |
| Public Sector Pension Investment Board | 56,023 | $2.34M | 0.01% | +56,023 | New |
| Thrivent Financial for Lutherans | 50,985 | $2.13M | 0.00% | −140.0% | Reduced |
| Invesco Ltd. | 49,109 | $2.05M | 0.00% | +6,798+16.1% | Added |
| Rhumbline Advisers | 44,740 | $1.87M | 0.00% | −6,369−12.5% | Reduced |
| Seizert Capital Partners, LLC | 44,544 | $1.86M | 0.08% | +44,544 | New |
| Linden Thomas Advisory Services, LLC | 44,068 | $1.84M | 0.19% | +1,432+3.4% | Added |
| Teachers Retirement System of the State of Kentucky | 43,112 | $1.80M | 0.01% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 42,566 | $1.77M | 0.00% | −470−1.1% | Reduced |
| Laurus Investment Counsel Inc. | 42,540 | $1.77M | 1.44% | −19,820−31.8% | Reduced |
| CBOE Vest Financial, LLC | 41,805 | $1.74M | 0.02% | +4,268+11.4% | Added |
| Alliancebernstein L.P. | 41,777 | $1.74M | 0.00% | +4,951+13.4% | Added |
| Wells Fargo & Company | 41,199 | $1.72M | 0.00% | +16,983+70.1% | Added |
| Victory Capital Management Inc | 40,437 | $1.69M | 0.00% | +40,437 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 38,793 | $1.62M | 0.00% | +38,793 | New |
| Legal & General Group Plc | 37,970 | $1.58M | 0.00% | −5,967−13.6% | Reduced |