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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5,681,770 | $223.8M | 0.00% | +2,457,265+76.2% | Added |
| Copeland Capital Management, LLC | 2,009,089 | $79.1M | 1.76% | +588,297+41.4% | Added |
| Vanguard Capital Management LLC | 1,505,177 | $59.3M | 0.00% | +1,505,177 | New |
| Vanguard Portfolio Management LLC | 1,464,212 | $57.7M | 0.00% | +1,464,212 | New |
| State Street Corp | 1,431,503 | $56.5M | 0.00% | +535,188+59.7% | Added |
| Janus Henderson Group PLC | 1,424,963 | $56.1M | 0.03% | −144,400−9.2% | Reduced |
| Geode Capital Management, LLC | 1,108,092 | $43.7M | 0.00% | +79,229+7.7% | Added |
| Wellington Management Group LLP | 929,599 | $36.6M | 0.01% | +50,301+5.7% | Added |
| Arrowstreet Capital, Limited Partnership | 846,040 | $33.3M | 0.02% | −17,982−2.1% | Reduced |
| Prudential Financial Inc | 750,030 | $29.5M | 0.04% | +750,030 | New |
| Dimensional Fund Advisors LP | 702,852 | $27.7M | 0.01% | +31,609+4.7% | Added |
| First Trust Advisors LP | 685,189 | $27.0M | 0.02% | −29,193−4.1% | Reduced |
| Doma Perpetual Capital Management LLC | 627,931 | $24.7M | 6.64% | 00.0% | Unchanged |
| Northern Trust Corp | 584,327 | $23.0M | 0.00% | −13,591−2.3% | Reduced |
| Point72 Asset Management, L.P. | 482,272 | $19.0M | 0.03% | +224,432+87.0% | Added |
| Royal Bank of Canada | 476,558 | $18.8M | 0.00% | −103,999−17.9% | Reduced |
| Morgan Stanley | 464,861 | $18.3M | 0.00% | +41,345+9.8% | Added |
| Renaissance Technologies LLC | 436,800 | $17.2M | 0.03% | +103,600+31.1% | Added |
| Jacobs Levy Equity Management, Inc | 412,788 | $16.3M | 0.07% | −2,202−0.5% | Reduced |
| Goldman Sachs Group Inc | 403,294 | $15.9M | 0.00% | +93,025+30.0% | Added |
| Fundsmith LLPSuperinvestorFundsmith | 383,596 | $15.1M | 0.12% | −1,396,261−78.4% | Reduced |
| Envestnet Asset Management Inc | 375,638 | $14.8M | 0.00% | +9,896+2.7% | Added |
| Charles Schwab Investment Management Inc | 338,560 | $13.3M | 0.00% | +23,718+7.5% | Added |
| Bank of New York Mellon Corp | 302,967 | $11.9M | 0.00% | +87,007+40.3% | Added |
| Bessemer Group Inc | 292,867 | $11.5M | 0.02% | +278,136+1,888.1% | Added |
| AQR Capital Management LLC | 285,028 | $11.2M | 0.01% | −11,999−4.0% | Reduced |
| Captrust Financial Advisors | 274,419 | $10.8M | 0.02% | +88,957+48.0% | Added |
| UBS Asset Management Americas Inc | 272,027 | $10.7M | 0.00% | +140,944+107.5% | Added |
| Federated Hermes, Inc. | 269,642 | $10.6M | 0.02% | +7,146+2.7% | Added |
| Granite Investment Partners, LLC | 267,526 | $10.5M | 0.65% | −13,355−4.8% | Reduced |
| Visionary Wealth Advisors | 262,401 | $10.3M | 0.46% | −610.0% | Reduced |
| Congress Asset Management Co | 252,402 | $9.94M | 0.07% | +71,009+39.1% | Added |
| Vanguard Fiduciary Trust Co | 246,641 | $9.72M | 0.00% | +246,641 | New |
| Wasatch Advisors Inc | 242,585 | $9.56M | 0.06% | +23,472+10.7% | Added |
| Algert Global LLC | 241,156 | $9.50M | 0.14% | +83,891+53.3% | Added |
| Principal Financial Group Inc | 225,314 | $8.88M | 0.00% | +158,984+239.7% | Added |
| Bank of America Corp | 221,765 | $8.74M | 0.00% | −88,835−28.6% | Reduced |
| Russell Investments Group, Ltd. | 213,787 | $8.42M | 0.01% | +66,830+45.5% | Added |
| Man Group plc | 209,630 | $8.26M | 0.02% | +90,306+75.7% | Added |
| Nuveen, LLC | 199,129 | $7.84M | 0.00% | +125,359+169.9% | Added |
| Gamco Investors, Inc. Et Al | 178,900 | $7.05M | 0.07% | −9,500−5.0% | Reduced |
| Trexquant Investment LP | 171,138 | $6.74M | 0.05% | +39,097+29.6% | Added |
| Kornitzer Capital Management Inc | 169,353 | $6.67M | 0.14% | −951−0.6% | Reduced |
| Qube Research & Technologies Ltd | 166,639 | $6.56M | 0.01% | −209,588−55.7% | Reduced |
| Canada Pension Plan Investment Board | 162,400 | $6.40M | 0.00% | −14,700−8.3% | Reduced |
| Rice Hall James & Associates, LLC | 146,773 | $5.78M | 0.32% | +1,848+1.3% | Added |
| Crawford Investment Counsel Inc | 139,288 | $5.49M | 0.09% | +21,608+18.4% | Added |
| CenterBook Partners LP | 132,467 | $5.22M | 0.28% | −883−0.7% | Reduced |
| SEI Investments Co | 131,418 | $5.18M | 0.00% | +36,904+39.0% | Added |
| Public Sector Pension Investment Board | 127,554 | $5.02M | 0.02% | +71,531+127.7% | Added |
| Invesco Ltd. | 124,389 | $4.90M | 0.00% | +75,280+153.3% | Added |
| Los Angeles Capital Management LLC | 121,452 | $4.78M | 0.02% | +104,302+608.2% | Added |
| Alta Capital Management LLC | 120,530 | $4.75M | 0.37% | −79,136−39.6% | Reduced |
| Rockefeller Capital Management L.P. | 118,793 | $4.70M | 0.01% | +3,037+2.6% | Added |
| Deprince Race & Zollo Inc | 118,763 | $4.68M | 0.09% | +46,739+64.9% | Added |
| Redmond Asset Management, LLC | 118,714 | $4.68M | 1.28% | −6,613−5.3% | Reduced |
| HighTower Advisors, LLC | 118,129 | $4.65M | 0.00% | −4,726−3.8% | Reduced |
| PDT Partners, LLC | 117,280 | $4.62M | 0.27% | −7,334−5.9% | Reduced |
| Isthmus Partners, LLC | 115,669 | $4.56M | 0.48% | −6,248−5.1% | Reduced |
| Uniplan Investment Counsel, Inc. | 113,389 | $4.47M | 0.46% | −7,027−5.8% | Reduced |
| BNP Paribas Arbitrage, SA | 112,950 | $4.45M | 0.00% | −106,934−48.6% | Reduced |
| SG Capital Management LLC | 107,168 | $4.22M | 0.35% | +32,947+44.4% | Added |
| Voloridge Investment Management, LLC | 99,238 | $3.91M | 0.02% | −86,407−46.5% | Reduced |
| JPMorgan Chase & Co | 102,563 | $3.89M | 0.00% | +32,126+45.6% | Added |
| Stifel Financial Corp | 93,693 | $3.69M | 0.00% | −3,025−3.1% | Reduced |
| Rhumbline Advisers | 93,566 | $3.69M | 0.00% | +48,826+109.1% | Added |
| American Century Companies Inc | 90,471 | $3.56M | 0.00% | −12,659−12.3% | Reduced |
| Walleye Capital LLC | 89,398 | $3.52M | 0.02% | +29,290+48.7% | Added |
| Two Sigma Investments, LP | 86,200 | $3.40M | 0.00% | +59,600+224.1% | Added |
| Legal & General Group Plc | 83,236 | $3.28M | 0.00% | +45,266+119.2% | Added |
| First National Bank of Omaha | 80,327 | $3.16M | 0.10% | −707−0.9% | Reduced |
| Thrivent Financial for Lutherans | 74,790 | $2.95M | 0.01% | +23,805+46.7% | Added |
| New York State Common Retirement Fund | 72,915 | $2.87M | 0.00% | 00.0% | Unchanged |
| Linden Thomas Advisory Services, LLC | 72,472 | $2.85M | 0.28% | +28,404+64.5% | Added |
| First National Advisers, LLC | 72,247 | $2.85M | 0.42% | −10,409−12.6% | Reduced |
| Swiss National Bank | 70,400 | $2.77M | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 69,690 | $2.75M | 0.00% | −72,855−51.1% | Reduced |
| HRT Financial LP | 65,822 | $2.59M | 0.01% | −22,973−25.9% | Reduced |
| Ameriprise Financial Inc | 64,723 | $2.55M | 0.00% | +64,723 | New |
| Allianz Asset Management GmbH | 60,650 | $2.39M | 0.00% | −19,500−24.3% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 59,331 | $2.34M | 0.04% | +31,516+113.3% | Added |
| Bridge City Capital, LLC | 58,610 | $2.31M | 0.64% | −828−1.4% | Reduced |
| Voleon Capital Management LP | 52,868 | $2.08M | 0.04% | −29,609−35.9% | Reduced |
| Teachers Retirement System of the State of Kentucky | 51,962 | $2.05M | 0.02% | +8,850+20.5% | Added |
| Divisadero Street Capital Management, LP | 50,799 | $2.00M | 0.09% | −758,930−93.7% | Reduced |
| UBS Group AG | 50,768 | $2.00M | 0.00% | −19,375−27.6% | Reduced |
| Vident Advisory, LLC | 48,891 | $1.93M | 0.02% | +48,891 | New |
| Victory Capital Management Inc | 48,519 | $1.91M | 0.00% | +8,082+20.0% | Added |
| California State Teachers Retirement System | 48,496 | $1.91M | 0.00% | +13,207+37.4% | Added |
| Gotham Asset Management, LLC | 46,082 | $1.82M | 0.01% | +25,586+124.8% | Added |
| CBOE Vest Financial, LLC | 45,403 | $1.79M | 0.02% | +3,598+8.6% | Added |
| Seizert Capital Partners, LLC | 44,835 | $1.77M | 0.08% | +291+0.7% | Added |
| Raymond James Financial Inc | 43,002 | $1.69M | 0.00% | +43,002 | New |
| Engineers Gate Manager LP | 41,182 | $1.62M | 0.02% | −26,400−39.1% | Reduced |
| Alliancebernstein L.P. | 37,642 | $1.57M | 0.00% | −4,135−9.9% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 37,957 | $1.50M | 0.05% | +3,167+9.1% | Added |
| Hantz Financial Services, Inc. | 37,751 | $1.49M | 0.02% | −36,355−49.1% | Reduced |
| Creative Planning | 37,010 | $1.46M | 0.00% | +5,188+16.3% | Added |
| Laurus Investment Counsel Inc. | 35,350 | $1.39M | 1.36% | −7,190−16.9% | Reduced |
| Gsa Capital Partners LLP | 33,189 | $1.31M | 0.08% | −579−1.7% | Reduced |