Napco Security TechnologiesNSSC
13F holders, Q3 2025 (September 30)240holders +19
49new positions
27sold out
10famous investors
$42.95avg. 13F price*
At the end of Q3 2025, 240 institutions reported holding Napco Security Technologies (NSSC) in their 13F filings, up 19 from Q2 2025. 49 opened new positions and 27 sold out. The largest holders were BlackRock, Inc. ($123.9M), Vanguard Group Inc. ($122.4M) and Fundsmith ($76.4M). 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 Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 49 | $65.8M |
| Exits | 27 | $25.2M |
All 13F filers, Q2 2025 → Q3 2025: 4,081,483 shares bought and 4,368,255 shares sold, net −286,772 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 240 holders
| BlackRock, Inc. | 0.00% | Reduce -3.8% | 2,883,885 | $123.9M |
| Vanguard Group Inc. | 0.00% | Reduce -0.3% | 2,850,419 | $122.4M |
| Fundsmith | 0.39% | Add +86.4% | 1,779,857 | $76.4M |
| Janus Henderson Group PLC | 0.03% | Add +3.8% | 1,524,270 | $65.5M |
| Copeland Capital Management, LLC | 1.34% | Reduce -5.6% | 1,497,512 | $64.3M |
| Doma Perpetual Capital Management LLC | 16.81% | Reduce -0.9% | 1,165,347 | $50.1M |
| Geode Capital Management, LLC | 0.00% | Reduce -0.7% | 1,024,539 | $44.0M |
| Wellington Management Group LLP | 0.01% | Reduce -2.9% | 1,008,857 | $43.3M |
| Arrowstreet Capital, Limited Partnership | 0.02% | Add +668.4% | 861,141 | $37.0M |
| State Street Corp. | 0.00% | Reduce -3.7% | 783,820 | $33.8M |
| Dimensional Fund Advisors LP | 0.01% | Reduce -5.7% | 678,085 | $29.1M |
| Royal Bank of Canada | 0.00% | Reduce -19.6% | 646,264 | $27.8M |
| Northern Trust Corp. | 0.00% | Reduce -0.3% | 640,317 | $27.5M |
| First Trust Advisors LP | 0.02% | New | 565,894 | $24.3M |
| Emerald Advisers, LLC | 0.64% | Reduce -10.3% | 466,165 | $20.0M |
| Jacobs Levy Equity Management, Inc. | 0.07% | Add +1.9% | 438,327 | $18.8M |
| Envestnet Asset Management Inc. | 0.01% | Reduce -34.4% | 422,097 | $18.1M |
| Qube Research & Technologies Ltd | 0.03% | Reduce -9.1% | 420,808 | $18.1M |
| Morgan Stanley | 0.00% | Reduce -36.6% | 380,594 | $16.3M |
| Deutsche Bank AG | 0.01% | Add +1402.4% | 367,331 | $15.8M |
| Rockefeller Capital Management L.P. | 0.03% | Reduce -9.3% | 348,576 | $15.0M |
| AQR Capital Management | 0.01% | Add +7.7% | 331,506 | $14.2M |
| Renaissance Technologies | 0.02% | Add +5.5% | 315,100 | $13.5M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -8.4% | 306,491 | $13.2M |
| Granite Investment Partners, LLC | 0.73% | Reduce -14.3% | 297,704 | $12.8M |
| Visionary Wealth Advisors | 0.52% | Reduce -2.9% | 258,559 | $11.1M |
| JPMorgan Chase & Co. | 0.00% | Reduce -56.9% | 257,403 | $11.1M |
| Bank of America Corp. | 0.00% | Add +0.5% | 251,326 | $10.8M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -39.2% | 250,574 | $10.8M |
| Alta Capital Management LLC/ | 0.54% | Reduce -7.5% | 224,118 | $9.6M |
| Adage Capital Partners Gp, L.L.C. | 0.01% | New | 220,000 | $9.4M |
| Wasatch Advisors LP | 0.05% | Reduce -1.8% | 217,111 | $9.3M |
| BNP Paribas Financial Markets | 0.01% | Add +25.3% | 206,512 | $8.9M |
| Bank of New York Mellon Corp | 0.00% | Reduce -0.6% | 199,536 | $8.6M |
| GAMCO Investors | 0.08% | No change | 198,000 | $8.5M |
| Voloridge Investment Management, LLC | 0.03% | Reduce -38.1% | 197,691 | $8.5M |
| Emerald Mutual Fund Advisers Trust | 0.42% | Reduce -16.8% | 189,495 | $8.1M |
| Trexquant Investment LP | 0.08% | Add +109.0% | 181,698 | $7.8M |
| Federated Hermes, Inc. | 0.01% | Reduce -2.3% | 177,422 | $7.6M |
| Canada Pension Plan Investment Board | 0.01% | Reduce -28.5% | 176,200 | $7.6M |
| Congress Asset Management Co. | 0.05% | Reduce -33.2% | 175,338 | $7.5M |
| Kornitzer Capital Management Inc. | 0.15% | No change | 173,580 | $7.5M |
| UBS Group AG | 0.00% | Add +40.1% | 168,995 | $7.3M |
| D. E. Shaw & Co. | 0.01% | Reduce -12.3% | 163,896 | $7.0M |
| Citadel Advisors | 0.01% | Add +44.4% | 162,795 | $7.0M |
| Rice Hall James & Associates, LLC | 0.37% | Reduce -16.1% | 156,368 | $6.7M |
| Russell Investments Group, Ltd. | 0.01% | Add +8.0% | 141,341 | $6.1M |
| Algert Global LLC | 0.10% | Reduce -33.0% | 135,235 | $5.8M |
| Danske Bank A/S | 0.01% | New | 131,145 | $5.6M |
| CenterBook Partners LP | 0.28% | Reduce -52.3% | 130,065 | $5.6M |
| Redmond Asset Management, LLC | 1.35% | Reduce -1.6% | 127,594 | $5.5M |
| Point72 Asset Management | 0.01% | Add +61.7% | 127,241 | $5.5M |
| PDT Partners, LLC | 0.34% | Reduce -18.9% | 124,614 | $5.4M |
| Millennium Management | 0.00% | Reduce -62.3% | 122,798 | $5.3M |
| Isthmus Partners, LLC | 0.62% | Add +4.5% | 122,345 | $5.3M |
| HighTower Advisors, LLC | 0.01% | Reduce -8.3% | 121,822 | $5.2M |
| Uniplan Investment Counsel, Inc. | 0.53% | Reduce -1.8% | 120,735 | $5.2M |
| Divisadero Street Capital Management, LP | 0.22% | No change | 111,566 | $4.8M |
| Crawford Investment Counsel Inc. | 0.07% | New | 103,750 | $4.5M |
| Stifel Financial Corp. | 0.00% | Reduce -3.0% | 103,098 | $4.4M |
| 4D Advisors, LLC | 2.29% | New | 100,000 | $4.3M |
| American Century Companies Inc. | 0.00% | Add +12.4% | 99,177 | $4.3M |
| FMR LLC | 0.00% | Reduce -77.3% | 97,914 | $4.2M |
| Marshall Wace, LLP | 0.00% | Reduce -43.7% | 93,698 | $4.0M |
| Man Group plc | 0.01% | Add +17.9% | 91,269 | $3.9M |
| Jump Financial, LLC | 0.05% | Reduce -6.6% | 90,400 | $3.9M |
| Tudor Investment Corporation | 0.03% | Reduce -54.8% | 89,212 | $3.8M |
| Sei Investments Co. | 0.00% | Add +7.9% | 88,956 | $3.8M |
| Allianz Asset Management GmbH | 0.00% | Add +0.2% | 88,513 | $3.8M |
| HRT Financial LP | 0.01% | Add +76.2% | 87,441 | $3.8M |
| First National Advisers, LLC | 0.49% | Add +1.7% | 83,812 | $3.6M |
| McMorgan & Co. LLC | 0.55% | Reduce -37.0% | 82,551 | $3.5M |
| First National Bank of Omaha | 0.22% | Reduce -4.6% | 82,549 | $3.5M |
| Voleon Capital Management LP | 0.09% | Reduce -23.2% | 81,948 | $3.5M |
| Verition Fund Management LLC | 0.02% | Reduce -30.0% | 81,838 | $3.5M |
| Hantz Financial Services, Inc. | 0.05% | Reduce -6.1% | 81,120 | $3.5M |
| Nuveen, LLC | 0.00% | Reduce -2.2% | 74,866 | $3.2M |
| New York State Common Retirement Fund | 0.00% | Reduce -2.7% | 72,915 | $3.1M |
| Swiss National Bank | 0.00% | No change | 69,500 | $3.0M |
| Bridge City Capital, LLC | 0.78% | Reduce -42.6% | 67,823 | $2.9M |
| Principal Financial Group Inc. | 0.00% | Add +100.0% | 66,781 | $2.9M |
| Engineers Gate Manager LP | 0.03% | Add +23.7% | 66,022 | $2.8M |
| Laurus Global Equity Management Inc. | 1.83% | No change | 62,360 | $2.7M |
| Deprince Race & Zollo Inc. | 0.05% | Reduce -7.8% | 57,731 | $2.5M |
| Barclays PLC | 0.00% | Reduce -20.6% | 55,078 | $2.4M |
| Rhumbline Advisers | 0.00% | Reduce -3.5% | 51,109 | $2.2M |
| Thrivent Financial for Lutherans | 0.00% | New | 50,999 | $2.2M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -45.0% | 49,554 | $2.1M |
| Ieq Capital, LLC | 0.01% | Add +27.9% | 47,849 | $2.1M |
| Legal & General Group Plc | 0.00% | Add +1.0% | 43,937 | $1.9M |
| Teachers Retirement System of the State of Kentucky | 0.01% | No change | 43,112 | $1.9M |
| SG Americas Securities, LLC | 0.01% | Add +882.6% | 43,036 | $1.8M |
| Linden Thomas Advisory Services, LLC | 0.19% | Add +4.1% | 42,636 | $1.8M |
| LPL Financial LLC | 0.00% | Add +8.8% | 42,448 | $1.8M |
| Invesco Ltd. | 0.00% | Add +10.9% | 42,311 | $1.8M |
| Schonfeld Strategic Advisors LLC | 0.01% | New | 41,303 | $1.8M |
| Susquehanna International Group, LLP | 0.00% | Reduce -23.8% | 39,372 | $1.7M |
| Vest Financial, LLC | 0.02% | New | 37,537 | $1.6M |
| Alliancebernstein L.P. | 0.00% | Add +1.3% | 36,826 | $1.6M |
| Hennion & Walsh Asset Management, Inc. | 0.06% | Reduce -36.8% | 35,529 | $1.5M |
"% of holder's portfolio" is NSSC's weight in each manager's 13F, not the share of Napco Security Technologies the manager owns.