Napco Security TechnologiesNSSC
13F holders, Q1 2026 (March 31)271holders +17
45new positions
27sold out
8famous investors
$39.40avg. 13F price*
At the end of Q1 2026, 271 institutions reported holding Napco Security Technologies (NSSC) in their 13F filings, up 17 from Q4 2025. 45 opened new positions and 27 sold out. The largest holders were BlackRock, Inc. ($223.8M), Copeland Capital Management, LLC ($79.1M) and Vanguard Capital Management LLC ($59.3M). 8 famous investors held it, including Terry Smith (0.1% of Fundsmith's portfolio), Mario Gabelli (0.1% of GAMCO Investors's portfolio) and Steve Cohen (0.0% of Point72 Asset Management's portfolio).
- Company
- Napco Security Technologies
- CUSIP
- 630402105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 45 | $46.4M |
| Exits | 27 | $44.2M |
All 13F filers, Q4 2025 → Q1 2026: 7,655,737 shares bought and 4,874,848 shares sold, net +2,780,889 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 271 holders
| BlackRock, Inc. | 0.00% | Add +76.2% | 5,681,770 | $223.8M |
| Copeland Capital Management, LLC | 1.76% | Add +41.4% | 2,009,089 | $79.1M |
| Vanguard Capital Management LLC | 0.00% | — | 1,505,177 | $59.3M |
| Vanguard Portfolio Management LLC | 0.00% | — | 1,464,212 | $57.7M |
| State Street Corp. | 0.00% | Add +59.7% | 1,431,503 | $56.5M |
| Janus Henderson Group PLC | 0.03% | Reduce -9.2% | 1,424,963 | $56.1M |
| Geode Capital Management, LLC | 0.00% | Add +7.7% | 1,108,092 | $43.7M |
| Wellington Management Group LLP | 0.01% | Add +5.7% | 929,599 | $36.6M |
| Arrowstreet Capital, Limited Partnership | 0.02% | Reduce -2.1% | 846,040 | $33.3M |
| Prudential Financial Inc. | 0.04% | New | 750,030 | $29.5M |
| Dimensional Fund Advisors LP | 0.01% | Add +4.7% | 702,852 | $27.7M |
| First Trust Advisors LP | 0.02% | Reduce -4.1% | 685,189 | $27.0M |
| Doma Perpetual Capital Management LLC | 6.64% | No change | 627,931 | $24.7M |
| Northern Trust Corp. | 0.00% | Reduce -2.3% | 584,327 | $23.0M |
| Point72 Asset Management | 0.03% | Add +87.0% | 482,272 | $19.0M |
| Royal Bank of Canada | 0.00% | Reduce -17.9% | 476,558 | $18.8M |
| Morgan Stanley | 0.00% | Add +9.8% | 464,861 | $18.3M |
| Renaissance Technologies | 0.03% | Add +31.1% | 436,800 | $17.2M |
| Jacobs Levy Equity Management, Inc. | 0.07% | Reduce -0.5% | 412,788 | $16.3M |
| Goldman Sachs Group Inc. | 0.00% | Add +30.0% | 403,294 | $15.9M |
| Fundsmith | 0.12% | Reduce -78.5% | 383,596 | $15.1M |
| Envestnet Asset Management Inc. | 0.00% | Add +2.7% | 375,638 | $14.8M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +7.5% | 338,560 | $13.3M |
| Bank of New York Mellon Corp | 0.00% | Add +40.3% | 302,967 | $11.9M |
| Bessemer Group Inc. | 0.02% | Add +1888.1% | 292,867 | $11.5M |
| AQR Capital Management | 0.01% | Reduce -4.0% | 285,028 | $11.2M |
| Captrust Financial Advisors | 0.02% | Add +48.0% | 274,419 | $10.8M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +107.5% | 272,027 | $10.7M |
| Federated Hermes, Inc. | 0.02% | Add +2.7% | 269,642 | $10.6M |
| Granite Investment Partners, LLC | 0.65% | Reduce -4.8% | 267,526 | $10.5M |
| Visionary Wealth Advisors | 0.46% | Reduce -0.0% | 262,401 | $10.3M |
| Congress Asset Management Co. | 0.07% | Add +39.1% | 252,402 | $9.9M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 246,641 | $9.7M |
| Wasatch Advisors LP | 0.06% | Add +10.7% | 242,585 | $9.6M |
| Algert Global LLC | 0.14% | Add +53.3% | 241,156 | $9.5M |
| Principal Financial Group Inc. | 0.00% | Add +239.7% | 225,314 | $8.9M |
| Bank of America Corp. | 0.00% | Reduce -28.6% | 221,765 | $8.7M |
| Russell Investments Group, Ltd. | 0.01% | Add +45.5% | 213,787 | $8.4M |
| Man Group plc | 0.02% | Add +75.7% | 209,630 | $8.3M |
| Nuveen, LLC | 0.00% | Add +169.9% | 199,129 | $7.8M |
| GAMCO Investors | 0.07% | Reduce -5.0% | 178,900 | $7.0M |
| Trexquant Investment LP | 0.05% | Add +29.6% | 171,138 | $6.7M |
| Kornitzer Capital Management Inc. | 0.14% | Reduce -0.6% | 169,353 | $6.7M |
| Qube Research & Technologies Ltd | 0.01% | Reduce -55.7% | 166,639 | $6.6M |
| Canada Pension Plan Investment Board | 0.00% | Reduce -8.3% | 162,400 | $6.4M |
| Rice Hall James & Associates, LLC | 0.32% | Add +1.3% | 146,773 | $5.8M |
| Crawford Investment Counsel Inc. | 0.09% | Add +18.4% | 139,288 | $5.5M |
| CenterBook Partners LP | 0.28% | Reduce -0.7% | 132,467 | $5.2M |
| Sei Investments Co. | 0.00% | Add +39.0% | 131,418 | $5.2M |
| Public Sector Pension Investment Board | 0.02% | Add +127.7% | 127,554 | $5.0M |
| Invesco Ltd. | 0.00% | Add +153.3% | 124,389 | $4.9M |
| Los Angeles Capital Management LLC | 0.02% | Add +608.2% | 121,452 | $4.8M |
| Alta Capital Management LLC/ | 0.37% | Reduce -39.6% | 120,530 | $4.7M |
| Rockefeller Capital Management L.P. | 0.01% | Add +2.6% | 118,793 | $4.7M |
| Deprince Race & Zollo Inc. | 0.09% | Add +64.9% | 118,763 | $4.7M |
| Redmond Asset Management, LLC | 1.28% | Reduce -5.3% | 118,714 | $4.7M |
| HighTower Advisors, LLC | 0.00% | Reduce -3.9% | 118,129 | $4.7M |
| PDT Partners, LLC | 0.27% | Reduce -5.9% | 117,280 | $4.6M |
| Isthmus Partners, LLC | 0.48% | Reduce -5.1% | 115,669 | $4.6M |
| Uniplan Investment Counsel, Inc. | 0.47% | Reduce -5.8% | 113,389 | $4.5M |
| BNP Paribas Financial Markets | 0.00% | Reduce -48.6% | 112,950 | $4.4M |
| SG Capital Management LLC | 0.35% | Add +44.4% | 107,168 | $4.2M |
| Voloridge Investment Management, LLC | 0.02% | Reduce -46.5% | 99,238 | $3.9M |
| JPMorgan Chase & Co. | 0.00% | Add +45.6% | 102,563 | $3.9M |
| Stifel Financial Corp. | 0.00% | Reduce -3.1% | 93,693 | $3.7M |
| Rhumbline Advisers | 0.00% | Add +109.1% | 93,566 | $3.7M |
| American Century Companies Inc. | 0.00% | Reduce -12.3% | 90,471 | $3.6M |
| Walleye Capital LLC | 0.02% | Add +48.7% | 89,398 | $3.5M |
| Two Sigma Investments, LP | 0.00% | Add +224.1% | 86,200 | $3.4M |
| Legal & General Group Plc | 0.00% | Add +119.2% | 83,236 | $3.3M |
| First National Bank of Omaha | 0.10% | Reduce -0.9% | 80,327 | $3.2M |
| Thrivent Financial for Lutherans | 0.01% | Add +46.7% | 74,790 | $2.9M |
| New York State Common Retirement Fund | 0.00% | No change | 72,915 | $2.9M |
| Linden Thomas Advisory Services, LLC | 0.28% | Add +64.5% | 72,472 | $2.9M |
| First National Advisers, LLC | 0.42% | Reduce -12.6% | 72,247 | $2.8M |
| Swiss National Bank | 0.00% | No change | 70,400 | $2.8M |
| Citadel Advisors | 0.00% | Reduce -51.1% | 69,690 | $2.7M |
| HRT Financial LP | 0.01% | Reduce -25.9% | 65,822 | $2.6M |
| Ameriprise Financial Inc. | 0.00% | New | 64,723 | $2.5M |
| Allianz Asset Management GmbH | 0.00% | Reduce -24.3% | 60,650 | $2.4M |
| Y-Intercept (Hong Kong) Ltd | 0.04% | Add +113.3% | 59,331 | $2.3M |
| Bridge City Capital, LLC | 0.64% | Reduce -1.4% | 58,610 | $2.3M |
| Voleon Capital Management LP | 0.04% | Reduce -35.9% | 52,868 | $2.1M |
| Teachers Retirement System of the State of Kentucky | 0.02% | Add +20.5% | 51,962 | $2.0M |
| Divisadero Street Capital Management, LP | 0.09% | Reduce -93.7% | 50,799 | $2.0M |
| UBS Group AG | 0.00% | Reduce -27.6% | 50,768 | $2.0M |
| Vident Advisory, LLC | 0.02% | New | 48,891 | $1.9M |
| Victory Capital Management Inc. | 0.00% | Add +20.0% | 48,519 | $1.9M |
| California State Teachers Retirement System | 0.00% | Add +37.4% | 48,496 | $1.9M |
| Gotham Asset Management | 0.01% | Add +124.8% | 46,082 | $1.8M |
| Vest Financial, LLC | 0.02% | Add +8.6% | 45,403 | $1.8M |
| Seizert Capital Partners, LLC | 0.08% | Add +0.7% | 44,835 | $1.8M |
| Raymond James Financial Inc. | 0.00% | New | 43,002 | $1.7M |
| Engineers Gate Manager LP | 0.02% | Reduce -39.1% | 41,182 | $1.6M |
| Alliancebernstein L.P. | 0.00% | Reduce -9.9% | 37,642 | $1.6M |
| Hennion & Walsh Asset Management, Inc. | 0.05% | Add +9.1% | 37,957 | $1.5M |
| Hantz Financial Services, Inc. | 0.02% | Reduce -49.1% | 37,751 | $1.5M |
| Creative Planning | 0.00% | Add +16.3% | 37,010 | $1.5M |
| Laurus Global Equity Management Inc. | 1.36% | Reduce -16.9% | 35,350 | $1.4M |
| Gsa Capital Partners LLP | 0.08% | Reduce -1.7% | 33,189 | $1.3M |
"% of holder's portfolio" is NSSC's weight in each manager's 13F, not the share of Napco Security Technologies the manager owns.