Napco Security TechnologiesNSSC
13F holders, Q4 2025 (December 31)254holders +14
33new positions
20sold out
10famous investors
$41.71avg. 13F price*
At the end of Q4 2025, 254 institutions reported holding Napco Security Technologies (NSSC) in their 13F filings, up 14 from Q3 2025. 33 opened new positions and 20 sold out. The largest holders were BlackRock, Inc. ($134.5M), Vanguard Group Inc. ($120.2M) and Fundsmith ($74.2M). 10 famous investors held it, including Terry Smith (0.4% of Fundsmith's portfolio), Mario Gabelli (0.1% of GAMCO Investors's portfolio) and Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio).
- Company
- Napco Security Technologies
- CUSIP
- 630402105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 33 | $31.1M |
| Exits | 20 | $34.8M |
All 13F filers, Q3 2025 → Q4 2025: 3,101,397 shares bought and 3,335,215 shares sold, net −233,818 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 254 holders
| BlackRock, Inc. | 0.00% | Add +11.8% | 3,224,505 | $134.5M |
| Vanguard Group Inc. | 0.00% | Add +1.1% | 2,882,063 | $120.2M |
| Fundsmith | 0.43% | No change | 1,779,857 | $74.2M |
| Janus Henderson Group PLC | 0.03% | Add +3.0% | 1,569,363 | $65.5M |
| Copeland Capital Management, LLC | 1.32% | Reduce -5.1% | 1,420,792 | $59.2M |
| Geode Capital Management, LLC | 0.00% | Add +0.4% | 1,028,863 | $42.9M |
| State Street Corp. | 0.00% | Add +14.3% | 896,315 | $37.5M |
| Wellington Management Group LLP | 0.01% | Reduce -12.8% | 879,298 | $36.7M |
| Arrowstreet Capital, Limited Partnership | 0.02% | Add +0.3% | 864,022 | $36.0M |
| Divisadero Street Capital Management, LP | 1.92% | Add +625.8% | 809,729 | $33.8M |
| First Trust Advisors LP | 0.02% | Add +26.2% | 714,382 | $29.8M |
| Dimensional Fund Advisors LP | 0.01% | Reduce -1.0% | 671,243 | $28.0M |
| Doma Perpetual Capital Management LLC | 7.36% | Reduce -46.1% | 627,931 | $26.2M |
| Northern Trust Corp. | 0.00% | Reduce -6.6% | 597,918 | $24.9M |
| Royal Bank of Canada | 0.00% | Reduce -10.2% | 580,557 | $24.2M |
| Morgan Stanley | 0.00% | Add +11.3% | 423,516 | $17.7M |
| Jacobs Levy Equity Management, Inc. | 0.07% | Reduce -5.3% | 414,990 | $17.3M |
| Qube Research & Technologies Ltd | 0.02% | Reduce -10.6% | 376,227 | $15.7M |
| Envestnet Asset Management Inc. | 0.00% | Reduce -13.3% | 365,742 | $15.3M |
| Renaissance Technologies | 0.02% | Add +5.7% | 333,200 | $13.9M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +2.7% | 314,842 | $13.1M |
| Bank of America Corp. | 0.00% | Add +23.6% | 310,600 | $13.0M |
| Goldman Sachs Group Inc. | 0.00% | Add +23.8% | 310,269 | $12.9M |
| AQR Capital Management | 0.01% | Reduce -10.4% | 297,027 | $12.4M |
| Granite Investment Partners, LLC | 0.69% | Reduce -5.7% | 280,881 | $11.7M |
| Federated Hermes, Inc. | 0.02% | Add +48.0% | 262,496 | $10.9M |
| Visionary Wealth Advisors | 0.49% | Add +1.5% | 262,462 | $10.9M |
| Point72 Asset Management | 0.02% | Add +102.6% | 257,840 | $10.8M |
| Adage Capital Partners Gp, L.L.C. | 0.02% | Add +10.7% | 243,510 | $10.2M |
| BNP Paribas Financial Markets | 0.01% | Add +6.5% | 219,884 | $9.2M |
| Wasatch Advisors LP | 0.05% | Add +0.9% | 219,113 | $9.1M |
| Bank of New York Mellon Corp | 0.00% | Add +8.2% | 215,960 | $9.0M |
| Tudor Investment Corporation | 0.05% | Add +124.7% | 200,489 | $8.4M |
| Alta Capital Management LLC/ | 0.55% | Reduce -10.9% | 199,666 | $8.3M |
| GAMCO Investors | 0.08% | Reduce -4.8% | 188,400 | $7.9M |
| Voloridge Investment Management, LLC | 0.03% | Reduce -6.1% | 185,645 | $7.7M |
| Captrust Financial Advisors | 0.01% | New | 185,462 | $7.7M |
| Congress Asset Management Co. | 0.05% | Add +3.5% | 181,393 | $7.6M |
| Canada Pension Plan Investment Board | 0.00% | Add +0.5% | 177,100 | $7.4M |
| Kornitzer Capital Management Inc. | 0.15% | Reduce -1.9% | 170,304 | $7.1M |
| Algert Global LLC | 0.10% | Add +16.3% | 157,265 | $6.6M |
| Russell Investments Group, Ltd. | 0.01% | Add +4.0% | 146,957 | $6.1M |
| Rice Hall James & Associates, LLC | 0.33% | Reduce -7.3% | 144,925 | $6.0M |
| Citadel Advisors | 0.00% | Reduce -12.4% | 142,545 | $5.9M |
| CenterBook Partners LP | 0.27% | Add +2.5% | 133,350 | $5.6M |
| Trexquant Investment LP | 0.05% | Reduce -27.3% | 132,041 | $5.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +164.5% | 131,083 | $5.5M |
| Danske Bank A/S | 0.01% | Reduce -0.7% | 130,235 | $5.4M |
| Redmond Asset Management, LLC | 1.33% | Reduce -1.8% | 125,327 | $5.2M |
| PDT Partners, LLC | 0.34% | No change | 124,614 | $5.2M |
| HighTower Advisors, LLC | 0.01% | Add +0.8% | 122,855 | $5.1M |
| Isthmus Partners, LLC | 0.56% | Reduce -0.3% | 121,917 | $5.1M |
| Uniplan Investment Counsel, Inc. | 0.52% | Reduce -0.3% | 120,416 | $5.0M |
| Man Group plc | 0.01% | Add +30.7% | 119,324 | $5.0M |
| Crawford Investment Counsel Inc. | 0.08% | Add +13.4% | 117,680 | $4.9M |
| Rockefeller Capital Management L.P. | 0.01% | Reduce -66.8% | 115,756 | $4.8M |
| American Century Companies Inc. | 0.00% | Add +4.0% | 103,130 | $4.3M |
| Deutsche Bank AG | 0.00% | Reduce -72.3% | 101,800 | $4.2M |
| 4D Advisors, LLC | 2.29% | No change | 100,000 | $4.2M |
| Marshall Wace, LLP | 0.00% | Add +4.6% | 98,006 | $4.1M |
| Stifel Financial Corp. | 0.00% | Reduce -6.2% | 96,718 | $4.0M |
| Sei Investments Co. | 0.00% | Add +6.3% | 94,514 | $3.9M |
| HRT Financial LP | 0.01% | Add +1.6% | 88,795 | $3.7M |
| First National Advisers, LLC | 0.47% | Reduce -1.4% | 82,656 | $3.4M |
| Voleon Capital Management LP | 0.07% | Add +0.7% | 82,477 | $3.4M |
| First National Bank of Omaha | 0.10% | Reduce -1.8% | 81,034 | $3.4M |
| Allianz Asset Management GmbH | 0.00% | Reduce -9.4% | 80,150 | $3.3M |
| D. E. Shaw & Co. | 0.00% | Reduce -54.0% | 75,362 | $3.1M |
| SG Capital Management LLC | 0.34% | New | 74,221 | $3.1M |
| Hantz Financial Services, Inc. | 0.05% | Reduce -8.7% | 74,106 | $3.1M |
| Nuveen, LLC | 0.00% | Reduce -1.5% | 73,770 | $3.1M |
| Millennium Management | 0.00% | Reduce -40.2% | 73,487 | $3.1M |
| New York State Common Retirement Fund | 0.00% | No change | 72,915 | $3.0M |
| Deprince Race & Zollo Inc. | 0.06% | Add +24.8% | 72,024 | $3.0M |
| JPMorgan Chase & Co. | 0.00% | Reduce -72.6% | 70,437 | $2.9M |
| Swiss National Bank | 0.00% | Add +1.3% | 70,400 | $2.9M |
| UBS Group AG | 0.00% | Reduce -58.5% | 70,143 | $2.9M |
| Barclays PLC | 0.00% | Add +25.2% | 68,958 | $2.9M |
| Engineers Gate Manager LP | 0.03% | Add +2.4% | 67,582 | $2.8M |
| Principal Financial Group Inc. | 0.00% | Reduce -0.7% | 66,330 | $2.8M |
| Verition Fund Management LLC | 0.01% | Reduce -22.4% | 63,535 | $2.6M |
| Acadian Asset Management LLC | 0.00% | Add +205.1% | 61,117 | $2.5M |
| Walleye Capital LLC | 0.02% | New | 60,108 | $2.5M |
| Bridge City Capital, LLC | 0.73% | Reduce -12.4% | 59,438 | $2.5M |
| Jump Financial, LLC | 0.03% | Reduce -37.4% | 56,580 | $2.4M |
| Public Sector Pension Investment Board | 0.01% | New | 56,023 | $2.3M |
| Thrivent Financial for Lutherans | 0.00% | Reduce -0.0% | 50,985 | $2.1M |
| Invesco Ltd. | 0.00% | Add +16.1% | 49,109 | $2.0M |
| Rhumbline Advisers | 0.00% | Reduce -12.5% | 44,740 | $1.9M |
| Seizert Capital Partners, LLC | 0.08% | New | 44,544 | $1.9M |
| Linden Thomas Advisory Services, LLC | 0.19% | Add +3.4% | 44,068 | $1.8M |
| Teachers Retirement System of the State of Kentucky | 0.01% | No change | 43,112 | $1.8M |
| SG Americas Securities, LLC | 0.00% | Reduce -1.1% | 42,566 | $1.8M |
| Laurus Global Equity Management Inc. | 1.44% | Reduce -31.8% | 42,540 | $1.8M |
| Vest Financial, LLC | 0.02% | Add +11.4% | 41,805 | $1.7M |
| Alliancebernstein L.P. | 0.00% | Add +13.4% | 41,777 | $1.7M |
| Wells Fargo & Company | 0.00% | Add +70.1% | 41,199 | $1.7M |
| Victory Capital Management Inc. | 0.00% | New | 40,437 | $1.7M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.00% | New | 38,793 | $1.6M |
| Legal & General Group Plc | 0.00% | Reduce -13.6% | 37,970 | $1.6M |
"% of holder's portfolio" is NSSC's weight in each manager's 13F, not the share of Napco Security Technologies the manager owns.