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, Q1 2026
Institutional positions in Napco Security Technologies, Inc as of Mar 31, 2026. 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
- 271
- +22 vs. Q4 2025
- Shares held
- 34.7M
- +5.99M (+20.9%) vs. Q4 2025
- Total value
- $1.37B
- +$169.6M (+14.2%) vs. Q4 2025
- New holders
- 51
- 96 more added
- Sold out
- 29
- 95 more reduced
5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Napco Security Technologies, Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Winton Group Ltd | 32,748 | $1.29M | 0.05% | +32,748 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 32,213 | $1.27M | 0.00% | −6,580−17.0% | Reduced |
| State Board of Administration of Florida Retirement System | 32,129 | $1.27M | 0.00% | +19,645+157.4% | Added |
| Deutsche Bank AG | 31,475 | $1.24M | 0.00% | −70,325−69.1% | Reduced |
| Price T Rowe Associates Inc | 31,036 | $1.22M | 0.00% | +5,745+22.7% | Added |
| Great West Life Assurance Co | 29,685 | $1.17M | 0.00% | +26,321+782.4% | Added |
| Ieq Capital, LLC | 29,313 | $1.15M | 0.01% | −8,544−22.6% | Reduced |
| Heritage Investors Management Corp | 29,097 | $1.15M | 0.03% | 00.0% | Unchanged |
| LPL Financial LLC | 28,700 | $1.13M | 0.00% | −2,424−7.8% | Reduced |
| Balyasny Asset Management LLC | 27,984 | $1.10M | 0.00% | +7,887+39.2% | Added |
| Integrated Quantitative Investments LLC | 27,424 | $1.08M | 0.20% | +22,587+467.0% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 27,336 | $1.08M | 0.00% | +19,428+245.7% | Added |
| GW&K Investment Management, LLC | 26,613 | $1.05M | 0.01% | −3,745−12.3% | Reduced |
| Twinbeech Capital LP | 26,100 | $1.03M | 0.11% | +26,100 | New |
| Vanguard Asset Management, Ltd | 24,999 | $984.7K | 0.00% | +24,999 | New |
| Raffles Associates LP | 24,424 | $962.1K | 0.83% | 00.0% | Unchanged |
| State of Alaska, Department of Revenue | 24,288 | $956.0K | 0.01% | +17,601+263.2% | Added |
| SG Americas Securities, LLC | 24,220 | $954.0K | 0.00% | −18,346−43.1% | Reduced |
| Teacher Retirement System of Texas | 23,989 | $944.9K | 0.00% | +6,614+38.1% | Added |
| State of Tennessee, Treasury Department | 23,544 | $927.4K | 0.00% | +15,924+209.0% | Added |
| Magnetar Financial LLC | 22,692 | $893.8K | 0.01% | +7,798+52.4% | Added |
| Franklin Resources Inc | 21,631 | $852.0K | 0.00% | −1,011−4.5% | Reduced |
| Cetera Investment Advisers | 21,559 | $849.2K | 0.00% | −1,286−5.6% | Reduced |
| Wells Fargo & Company | 21,458 | $845.2K | 0.00% | −19,741−47.9% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 21,341 | $841.0K | 0.00% | −40.0% | Reduced |
| HSBC Holdings PLC | 21,068 | $825.1K | 0.00% | −2,198−9.4% | Reduced |
| MetLife Investment Management | 19,569 | $770.8K | 0.00% | +208+1.1% | Added |
| Quantinno Capital Management LP | 19,464 | $766.7K | 0.00% | +596+3.2% | Added |
| Susquehanna International Group, LLP | 19,318 | $760.9K | 0.00% | −10,005−34.1% | Reduced |
| Ellsworth Advisors, LLC | 18,774 | $739.5K | 0.14% | +18,774 | New |
| Jefferies Financial Group Inc. | 18,558 | $731.0K | 0.01% | +12,576+210.2% | Added |
| KLP Kapitalforvaltning AS | 18,400 | $727.1K | 0.00% | 00.0% | Unchanged |
| Gabelli Funds LLC | 18,400 | $724.8K | 0.00% | −1,600−8.0% | Reduced |
| Harbor Capital Advisors, Inc. | 17,814 | $702.0K | 0.06% | +17,814 | New |
| STRS Ohio | 17,800 | $701.1K | 0.00% | −500−2.7% | Reduced |
| Vanguard Global Advisers, LLC | 17,581 | $692.5K | 0.00% | +17,581 | New |
| Cerity Partners LLC | 17,416 | $686.0K | 0.00% | +221+1.3% | Added |
| Wealth Enhancement Advisory Services, LLC | 17,099 | $681.7K | 0.00% | +5,118+42.7% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 16,181 | $637.4K | 0.00% | +186+1.2% | Added |
| Fifth Third Bancorp | 15,901 | $626.3K | 0.00% | +15,901 | New |
| Louisiana State Employees Retirement System | 15,800 | $622.4K | 0.01% | +15,800 | New |
| Virginia Retirement Systems Et Al | 15,748 | $620.3K | 0.00% | +2,700+20.7% | Added |
| CWM, LLC | 15,683 | $617.8K | 0.00% | −2,187−12.2% | Reduced |
| Manufacturers Life Insurance Company, The | 15,562 | $613.0K | 0.00% | −372−2.3% | Reduced |
| Truist Financial Corp | 15,357 | $604.9K | 0.00% | −2,195−12.5% | Reduced |
| Neuberger Berman Group LLC | 15,164 | $597.3K | 0.00% | +360+2.4% | Added |
| Millennium Management LLC | 14,598 | $575.0K | 0.00% | −58,889−80.1% | Reduced |
| XTX Topco Ltd | 14,486 | $570.6K | 0.01% | +14,486 | New |
| Lazard Asset Management LLC | 14,312 | $563.8K | 0.00% | +841+6.2% | Added |
| Barclays PLC | 14,145 | $557.2K | 0.00% | −54,813−79.5% | Reduced |
| Financiere des Professionnels - Fonds d,investissement inc. | 13,775 | $542.6K | 0.03% | +13,775 | New |
| Pathstone Holdings, LLC | 13,680 | $538.9K | 0.00% | +307+2.3% | Added |
| Dynamic Technology Lab Private Ltd | 13,680 | $538.9K | 0.09% | +7,397+117.7% | Added |
| Harbour Capital Advisors, LLC | 11,425 | $517.4K | 0.10% | +11,425 | New |
| Cim, LLC | 12,526 | $493.4K | 0.07% | −87−0.7% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 12,231 | $481.8K | 0.00% | +11,928+3,936.6% | Added |
| Alps Advisors Inc | 11,628 | $458.0K | 0.00% | +637+5.8% | Added |
| CI Private Wealth, LLC | 11,390 | $448.7K | 0.00% | −2,197−16.2% | Reduced |
| State of Wyoming | 11,343 | $446.8K | 0.05% | −499−4.2% | Reduced |
| Citigroup Inc | 11,283 | $444.4K | 0.00% | +8,424+294.6% | Added |
| Marshall Wace, LLP | 10,839 | $426.9K | 0.00% | −87,167−88.9% | Reduced |
| Aviva PLC | 10,544 | $415.3K | 0.00% | −1,283−10.8% | Reduced |
| Snowden Capital Advisors LLC | 10,503 | $415.3K | 0.01% | −3,484−24.9% | Reduced |
| Tributary Capital Management, LLC | 10,248 | $403.7K | 0.04% | −300−2.8% | Reduced |
| Amalgamated Bank | 10,232 | $403.0K | 0.00% | +9,147+843.0% | Added |
| Intech Investment Management LLC | 10,185 | $401.2K | 0.00% | −5,415−34.7% | Reduced |
| Sentinel Pension Advisors Inc | 10,046 | $395.7K | 0.06% | −2,500−19.9% | Reduced |
| Yorktown Management & Research Co Inc | 9,900 | $390.0K | 0.33% | 00.0% | Unchanged |
| Arizona State Retirement System | 9,794 | $385.8K | 0.00% | −150−1.5% | Reduced |
| Earnest Partners LLC | 9,600 | $378.1K | 0.00% | 00.0% | Unchanged |
| Yousif Capital Management, LLC | 9,555 | $376.4K | 0.00% | +9,555 | New |
| Police & Firemen's Retirement System of New Jersey | 8,922 | $351.4K | 0.00% | 00.0% | Unchanged |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 8,820 | $347.4K | 0.00% | +8,820 | New |
| Freestone Grove Partners LP | 8,527 | $335.9K | 0.00% | +8,527 | New |
| BTC Capital Management, Inc. | 8,331 | $328.2K | 0.02% | +8,331 | New |
| Oregon Public Employees Retirement Fund | 8,200 | $323.0K | 0.00% | +8,200 | New |
| Legato Capital Management LLC | 8,117 | $319.7K | 0.03% | 00.0% | Unchanged |
| Verdad Advisers, LP | 8,091 | $318.7K | 0.36% | +8,091 | New |
| Corient IA LLC | 8,070 | $317.9K | 0.30% | −1,930−19.3% | Reduced |
| Vanguard Investments Australia, Ltd. | 8,036 | $316.5K | 0.00% | +8,036 | New |
| Skopos Labs, Inc. | 7,945 | $313.0K | 0.01% | −3,446−30.3% | Reduced |
| Personal Cfo Solutions, LLC | 7,850 | $310.4K | 0.04% | +218+2.9% | Added |
| McMorgan & Co LLC | 7,751 | $305.3K | 0.05% | −3,600−31.7% | Reduced |
| GWN Securities Inc. | 7,521 | $296.3K | 0.06% | +7,521 | New |
| Brevan Howard Capital Management LP | 7,255 | $285.8K | 0.00% | −6,089−45.6% | Reduced |
| Pacer Advisors, Inc. | 6,251 | $246.0K | 0.00% | +6,251 | New |
| SkyOak Wealth, LLC | 6,162 | $242.7K | 0.04% | −2,800−31.2% | Reduced |
| Swiss Life Asset Management Ltd | 6,158 | $242.6K | 0.00% | +6,158 | New |
| Pictet Asset Management Holding SA | 6,132 | $241.5K | 0.00% | +1,209+24.6% | Added |
| Barrett & Company, Inc. | 6,022 | $237.2K | 0.08% | +5+0.1% | Added |
| Voya Investment Management LLC | 5,944 | $234.1K | 0.00% | −296−4.7% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 5,799 | $228.4K | 0.00% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 5,751 | $226.5K | 0.00% | −94−1.6% | Reduced |
| Scientech Research LLC | 5,737 | $226.0K | 0.19% | +5,737 | New |
| Cornerstone Investment Partners, LLC | 5,632 | $221.8K | 0.01% | +5,632 | New |
| The PNC Financial Services Group, Inc. | 5,612 | $221.1K | 0.00% | +5,396+2,498.1% | Added |
| Green Square Capital Advisors LLC | 5,609 | $220.9K | 0.02% | −262−4.5% | Reduced |
| Campbell & CO Investment Adviser LLC | 5,566 | $219.2K | 0.01% | −17,819−76.2% | Reduced |
| ProShare Advisors LLC | 5,386 | $212.2K | 0.00% | −927−14.7% | Reduced |
| Banque Cantonale Vaudoise | 5,340 | $210.0K | 0.01% | +5,340 | New |