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 |
|---|---|---|---|---|---|
| First National Bank of Omaha | 80,327 | $3.16M | 0.10% | −707−0.9% | Reduced |
| Legal & General Group Plc | 83,236 | $3.28M | 0.00% | +45,266+119.2% | Added |
| Two Sigma Investments, LP | 86,200 | $3.40M | 0.00% | +59,600+224.1% | Added |
| Walleye Capital LLC | 89,398 | $3.52M | 0.02% | +29,290+48.7% | Added |
| American Century Companies Inc | 90,471 | $3.56M | 0.00% | −12,659−12.3% | Reduced |
| Rhumbline Advisers | 93,566 | $3.69M | 0.00% | +48,826+109.1% | Added |
| Stifel Financial Corp | 93,693 | $3.69M | 0.00% | −3,025−3.1% | Reduced |
| JPMorgan Chase & Co | 102,563 | $3.89M | 0.00% | +32,126+45.6% | Added |
| Voloridge Investment Management, LLC | 99,238 | $3.91M | 0.02% | −86,407−46.5% | Reduced |
| SG Capital Management LLC | 107,168 | $4.22M | 0.35% | +32,947+44.4% | Added |
| BNP Paribas Arbitrage, SA | 112,950 | $4.45M | 0.00% | −106,934−48.6% | Reduced |
| Uniplan Investment Counsel, Inc. | 113,389 | $4.47M | 0.46% | −7,027−5.8% | Reduced |
| Isthmus Partners, LLC | 115,669 | $4.56M | 0.48% | −6,248−5.1% | Reduced |
| PDT Partners, LLC | 117,280 | $4.62M | 0.27% | −7,334−5.9% | Reduced |
| HighTower Advisors, LLC | 118,129 | $4.65M | 0.00% | −4,726−3.8% | Reduced |
| Redmond Asset Management, LLC | 118,714 | $4.68M | 1.28% | −6,613−5.3% | Reduced |
| Deprince Race & Zollo Inc | 118,763 | $4.68M | 0.09% | +46,739+64.9% | Added |
| Rockefeller Capital Management L.P. | 118,793 | $4.70M | 0.01% | +3,037+2.6% | Added |
| Alta Capital Management LLC | 120,530 | $4.75M | 0.37% | −79,136−39.6% | Reduced |
| Los Angeles Capital Management LLC | 121,452 | $4.78M | 0.02% | +104,302+608.2% | Added |
| Invesco Ltd. | 124,389 | $4.90M | 0.00% | +75,280+153.3% | Added |
| Public Sector Pension Investment Board | 127,554 | $5.02M | 0.02% | +71,531+127.7% | Added |
| SEI Investments Co | 131,418 | $5.18M | 0.00% | +36,904+39.0% | Added |
| CenterBook Partners LP | 132,467 | $5.22M | 0.28% | −883−0.7% | Reduced |
| Crawford Investment Counsel Inc | 139,288 | $5.49M | 0.09% | +21,608+18.4% | Added |
| Rice Hall James & Associates, LLC | 146,773 | $5.78M | 0.32% | +1,848+1.3% | Added |
| Canada Pension Plan Investment Board | 162,400 | $6.40M | 0.00% | −14,700−8.3% | Reduced |
| Qube Research & Technologies Ltd | 166,639 | $6.56M | 0.01% | −209,588−55.7% | Reduced |
| Kornitzer Capital Management Inc | 169,353 | $6.67M | 0.14% | −951−0.6% | Reduced |
| Trexquant Investment LP | 171,138 | $6.74M | 0.05% | +39,097+29.6% | Added |
| Gamco Investors, Inc. Et Al | 178,900 | $7.05M | 0.07% | −9,500−5.0% | Reduced |
| Nuveen, LLC | 199,129 | $7.84M | 0.00% | +125,359+169.9% | Added |
| Man Group plc | 209,630 | $8.26M | 0.02% | +90,306+75.7% | Added |
| Russell Investments Group, Ltd. | 213,787 | $8.42M | 0.01% | +66,830+45.5% | Added |
| Bank of America Corp | 221,765 | $8.74M | 0.00% | −88,835−28.6% | Reduced |
| Principal Financial Group Inc | 225,314 | $8.88M | 0.00% | +158,984+239.7% | Added |
| Algert Global LLC | 241,156 | $9.50M | 0.14% | +83,891+53.3% | Added |
| Wasatch Advisors Inc | 242,585 | $9.56M | 0.06% | +23,472+10.7% | Added |
| Vanguard Fiduciary Trust Co | 246,641 | $9.72M | 0.00% | +246,641 | New |
| Congress Asset Management Co | 252,402 | $9.94M | 0.07% | +71,009+39.1% | Added |
| Visionary Wealth Advisors | 262,401 | $10.3M | 0.46% | −610.0% | Reduced |
| Granite Investment Partners, LLC | 267,526 | $10.5M | 0.65% | −13,355−4.8% | Reduced |
| Federated Hermes, Inc. | 269,642 | $10.6M | 0.02% | +7,146+2.7% | Added |
| UBS Asset Management Americas Inc | 272,027 | $10.7M | 0.00% | +140,944+107.5% | Added |
| Captrust Financial Advisors | 274,419 | $10.8M | 0.02% | +88,957+48.0% | Added |
| AQR Capital Management LLC | 285,028 | $11.2M | 0.01% | −11,999−4.0% | Reduced |
| Bessemer Group Inc | 292,867 | $11.5M | 0.02% | +278,136+1,888.1% | Added |
| Bank of New York Mellon Corp | 302,967 | $11.9M | 0.00% | +87,007+40.3% | Added |
| Charles Schwab Investment Management Inc | 338,560 | $13.3M | 0.00% | +23,718+7.5% | Added |
| Envestnet Asset Management Inc | 375,638 | $14.8M | 0.00% | +9,896+2.7% | Added |
| Fundsmith LLPSuperinvestorFundsmith | 383,596 | $15.1M | 0.12% | −1,396,261−78.4% | Reduced |
| Goldman Sachs Group Inc | 403,294 | $15.9M | 0.00% | +93,025+30.0% | Added |
| Jacobs Levy Equity Management, Inc | 412,788 | $16.3M | 0.07% | −2,202−0.5% | Reduced |
| Renaissance Technologies LLC | 436,800 | $17.2M | 0.03% | +103,600+31.1% | Added |
| Morgan Stanley | 464,861 | $18.3M | 0.00% | +41,345+9.8% | Added |
| Royal Bank of Canada | 476,558 | $18.8M | 0.00% | −103,999−17.9% | Reduced |
| Point72 Asset Management, L.P. | 482,272 | $19.0M | 0.03% | +224,432+87.0% | Added |
| Northern Trust Corp | 584,327 | $23.0M | 0.00% | −13,591−2.3% | Reduced |
| Doma Perpetual Capital Management LLC | 627,931 | $24.7M | 6.64% | 00.0% | Unchanged |
| First Trust Advisors LP | 685,189 | $27.0M | 0.02% | −29,193−4.1% | Reduced |
| Dimensional Fund Advisors LP | 702,852 | $27.7M | 0.01% | +31,609+4.7% | Added |
| Prudential Financial Inc | 750,030 | $29.5M | 0.04% | +750,030 | New |
| Arrowstreet Capital, Limited Partnership | 846,040 | $33.3M | 0.02% | −17,982−2.1% | Reduced |
| Wellington Management Group LLP | 929,599 | $36.6M | 0.01% | +50,301+5.7% | Added |
| Geode Capital Management, LLC | 1,108,092 | $43.7M | 0.00% | +79,229+7.7% | Added |
| Janus Henderson Group PLC | 1,424,963 | $56.1M | 0.03% | −144,400−9.2% | Reduced |
| State Street Corp | 1,431,503 | $56.5M | 0.00% | +535,188+59.7% | Added |
| Vanguard Portfolio Management LLC | 1,464,212 | $57.7M | 0.00% | +1,464,212 | New |
| Vanguard Capital Management LLC | 1,505,177 | $59.3M | 0.00% | +1,505,177 | New |
| Copeland Capital Management, LLC | 2,009,089 | $79.1M | 1.76% | +588,297+41.4% | Added |
| BlackRock, Inc. | 5,681,770 | $223.8M | 0.00% | +2,457,265+76.2% | Added |
| Adage Capital Partners GP, L.L.C. | 0 | $0 | 0.00% | −243,510−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −200,489−100.0% | Sold out |
| Danske Bank A/S | 0 | $0 | 0.00% | −130,235−100.0% | Sold out |
| 4D Advisors, LLC | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −75,362−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −63,535−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −61,117−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −56,580−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −35,912−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −32,551−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −27,700−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −13,027−100.0% | Sold out |
| Polen Capital Management LLC | 0 | $0 | 0.00% | −12,567−100.0% | Sold out |
| Mangrove Partners | 0 | $0 | 0.00% | −11,471−100.0% | Sold out |
| Numerai GP LLC | 0 | $0 | 0.00% | −10,383−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −8,521−100.0% | Sold out |
| Jacobs Equity LLC | 0 | $0 | 0.00% | −7,458−100.0% | Sold out |
| MML Investors Services, LLC | 0 | $0 | 0.00% | −5,237−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −5,160−100.0% | Sold out |
| Toroso Investments, LLC | 0 | $0 | 0.00% | −5,105−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −4,607−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −4,542−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −3,376−100.0% | Sold out |
| CBIZ Investment Advisory Services, LLC | 0 | $0 | 0.00% | −1,039−100.0% | Sold out |
| Maseco LLP | 0 | $0 | 0.00% | −590−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −156−100.0% | Sold out |
| SJS Investment Consulting Inc. | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Larson Financial Group LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |