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

0100200300 Q1 2024: 240Q1 2024Q2 2024: 273Q2 2024Q3 2024: 262Q3 2024Q4 2024: 251Q4 2024Q1 2025: 229Q1 2025Q2 2025: 221Q2 2025Q3 2025: 240Q3 2025Q4 2025: 254Q4 2025Q1 2026: 271Q1 2026Q2 2026: 258Q2 2026

Total Exit/New Position Q3 2025 → Q4 2025

InstitutionsTotal Value
New Positions33$31.1M
Exits20$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
Ieq Capital, LLC 0.00% Reduce -20.9% 37,857 $1.6M
Jane Street Group, LLC 0.00% New 35,912 $1.5M
California State Teachers Retirement System 0.00% Add +3.9% 35,289 $1.5M
Hennion & Walsh Asset Management, Inc. 0.05% Reduce -2.1% 34,790 $1.5M
Gsa Capital Partners LLP 0.12% Add +510.3% 33,768 $1.4M
AlphaQuest LLC 0.08% Add +46.0% 32,551 $1.4M
Creative Planning 0.00% Add +15.1% 31,822 $1.3M
LPL Financial LLC 0.00% Reduce -26.7% 31,124 $1.3M
GW&K Investment Management, LLC 0.01% No change 30,358 $1.3M
Susquehanna International Group, LLP 0.00% Reduce -25.5% 29,323 $1.2M
Heritage Investors Management Corp. 0.04% No change 29,097 $1.2M
Y-Intercept (Hong Kong) Ltd 0.03% Reduce -16.4% 27,815 $1.2M
Two Sigma Advisers, LP 0.00% Add +130.8% 27,700 $1.2M
Two Sigma Investments, LP 0.00% New 26,600 $1.1M
T. Rowe Price Associates Inc. 0.00% Add +4.0% 25,291 $1.1M
Raffles Associates LP 0.76% No change 24,424 $1.0M
HSBC Holdings PLC 0.00% New 23,266 $981K
Campbell & CO Investment Adviser LLC 0.05% New 23,385 $975K
Norges Bank 0.00% — 22,935 $956K
Cetera Investment Advisers 0.00% Add +9.0% 22,845 $953K
Franklin Resources Inc. 0.00% Reduce -1.1% 22,642 $944K
Cambridge Investment Research Advisors, Inc. 0.00% Reduce -1.5% 21,345 $890K
Quantbot Technologies LP 0.03% Reduce -38.9% 20,633 $860K
Gotham Asset Management 0.00% Reduce -0.2% 20,496 $855K
Balyasny Asset Management L.P. 0.00% New 20,097 $838K
Gabelli Funds LLC 0.01% No change 20,000 $834K
MetLife Investment Management, LLC 0.00% Reduce -5.5% 19,361 $807K
Quantinno Capital Management LP 0.00% Add +16.6% 18,868 $787K
KLP Kapitalforvaltning As 0.00% Add +97.8% 18,400 $769K
STRS Ohio 0.00% Add +92.6% 18,300 $763K
Los Angeles Capital Management LLC 0.00% No change 17,150 $751K
Cwm, LLC 0.00% Reduce -7.7% 17,870 $745K
Truist Financial Corp. 0.00% Reduce -7.1% 17,552 $732K
Teacher Retirement System of Texas 0.00% Add +24.4% 17,375 $725K
Cerity Partners LLC 0.00% Reduce -13.2% 17,195 $717K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% Reduce -0.3% 15,995 $667K
Manufacturers Life Insurance Company, The 0.00% Reduce -7.2% 15,934 $664K
Intech Investment Management LLC 0.01% No change 15,600 $651K
Magnetar Financial LLC 0.01% New 14,894 $621K
Neuberger Berman Group LLC 0.00% Reduce -5.8% 14,804 $617K
Bessemer Group Inc. 0.00% Add +0.4% 14,731 $615K
Snowden Capital Advisors LLC 0.02% Reduce -9.9% 13,987 $585K
Corient Private Wealth LP 0.00% Reduce -46.2% 13,587 $567K
Lazard Asset Management LLC 0.00% Add +0.3% 13,471 $562K
Pathstone Holdings, LLC 0.00% Reduce -52.4% 13,373 $558K
Brevan Howard Capital Management LP 0.01% Reduce -36.5% 13,344 $556K
VIRGINIA RETIREMENT SYSTEMS ET Al 0.00% Add +47.5% 13,048 $544K
Versor Investments LP 0.08% New 13,027 $543K
Cim, LLC 0.07% Reduce -4.2% 12,613 $526K
Polen Capital Management LLC 0.00% No change 12,567 $524K
Sentinel Pension Advisors, LLC 0.08% Reduce -21.8% 12,546 $523K
State Board of Administration of Florida Retirement System 0.00% Add +37.3% 12,484 $521K
Wealth Enhancement Advisory Services, LLC 0.00% Reduce -1.1% 11,981 $505K
State of Wyoming 0.05% Add +1136.1% 11,842 $494K
Aviva PLC 0.00% Add +0.0% 11,827 $493K
Brooklyn Investment Group 0.02% New 11,391 $479K
Mangrove Partners Im, LLC 0.04% New 11,471 $478K
McMorgan & Co. LLC 0.08% Reduce -86.3% 11,351 $473K
Alps Advisors Inc. 0.00% Add +1.1% 10,991 $458K
Tributary Capital Management, LLC 0.04% Reduce -1.9% 10,548 $440K
Numerai GP LLC 0.05% Reduce -20.6% 10,383 $433K
Corient IA LP 0.39% New 10,000 $417K
Arizona State Retirement System 0.00% Reduce -5.6% 9,944 $415K
Yorktown Management & Research Co Inc 0.33% No change 9,900 $413K
Earnest Partners LLC 0.00% No change 9,600 $400K
SkyOak Wealth, LLC 0.07% Reduce -4.5% 8,962 $374K
Police & Firemen's Retirement System of New Jersey 0.00% Reduce -8.4% 8,922 $372K
Aquatic Capital Management LLC 0.01% New 8,521 $355K
Legato Capital Management LLC 0.03% Reduce -48.5% 8,117 $338K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Add +27.1% 7,908 $330K
Personal Cfo Solutions, LLC 0.05% Reduce -5.0% 7,632 $318K
Comerica Bank 0.00% Reduce -7.0% 7,626 $318K
Jacobs Equity LLC 0.30% — 7,458 $311K
State of Tennessee, Department of Treasury 0.00% New 7,620 $281K
State of Alaska, Department of Revenue 0.00% Add +322.7% 6,687 $277K
ProShare Advisors LLC 0.00% Add +6.9% 6,313 $263K
Dynamic Technology Lab Private Ltd 0.06% New 6,283 $262K
Voya Investment Management LLC 0.00% Reduce -1.9% 6,240 $260K
Barrett & Company, Inc. 0.08% Add +0.1% 6,017 $251K
Jefferies Financial Group Inc. 0.00% New 5,982 $249K
Steel Grove Capital Advisors, LLC 0.03% New 5,871 $245K
Mercer Global Advisors Inc. 0.00% Reduce -5.2% 5,845 $244K
Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% No change 5,799 $242K
MML Investors Services, LLC 0.00% Add +1.4% 5,237 $218K
NLB Skladi, upravljanje premozenja, d.o.o. 0.01% — 5,200 $217K
Jain Global LLC 0.00% Reduce -16.2% 5,160 $215K
Tidal Investments LLC 0.00% New 5,105 $213K
DekaBank Deutsche Girozentrale 0.00% No change 4,553 $206K
Pictet Asset Management Holding SA 0.00% No change 4,923 $205K
Integrated Quantitative Investments LLC 0.04% New 4,837 $202K
Walleye Trading LLC 0.00% New 4,607 $192K
Kestra Advisory Services, LLC 0.00% Reduce -16.9% 4,542 $189K
FMR LLC 0.00% Reduce -95.4% 4,484 $187K
Tower Research Capital LLC (TRC) 0.00% Reduce -15.7% 4,225 $176K
Public Employees Retirement Association of Colorado 0.00% No change 3,551 $148K
Global Retirement Partners, LLC 0.00% New 3,475 $145K
Simplex Trading, LLC 0.00% Reduce -28.3% 3,376 $141K
CANADA LIFE ASSURANCE Co 0.00% Reduce -80.0% 3,364 $140K
Ameritas Investment Partners, Inc. 0.00% No change 2,885 $120K
Citigroup Inc. 0.00% Reduce -48.2% 2,859 $119K
Kemnay Advisory Services Inc. 0.02% New 2,563 $107K
Arax Advisory Partners 0.00% Reduce -90.8% 1,464 $61K
Essential Partners LLC 0.02% Reduce -7.1% 1,260 $53K
Farther Finance Advisors, LLC 0.00% Reduce -18.5% 1,256 $52K
Versant Capital Management, Inc 0.01% No change 1,145 $48K
Amalgamated Bank 0.00% Reduce -8.1% 1,085 $45K
CBIZ Investment Advisory Services, LLC 0.00% Reduce -0.3% 1,039 $43K
GAMMA Investing LLC 0.00% Add +10.4% 868 $36K
Osaic Holdings, Inc. 0.00% Reduce -57.7% 850 $36K
MPWM Advisory Solutions, LLC 0.02% No change 805 $34K
IFP Advisors, Inc 0.00% Add +40.4% 803 $33K
EverSource Wealth Advisors, LLC 0.00% Add +25.0% 781 $33K
Truvestments Capital LLC 0.01% No change 752 $31K
Parkside Financial Bank & Trust 0.00% No change 747 $31K
Federation des caisses Desjardins du Quebec 0.00% No change 687 $29K
Exchange Traded Concepts, LLC 0.00% Add +3.4% 638 $27K
Quadrant Capital Group LLC 0.00% No change 607 $25K
Signaturefd, LLC 0.00% No change 602 $25K
Maseco LLP 0.00% New 590 $25K
US Bancorp \de 0.00% Reduce -27.4% 536 $22K
Cornerstone Planning Group LLC 0.00% No change 571 $22K
Nisa Investment Advisors, LLC 0.00% Reduce -16.1% 501 $21K
First Horizon Corp. 0.00% Add +10.4% 477 $20K
Financial Network Wealth Advisors LLC 0.02% Reduce -5.2% 398 $17K
Financial Management Professionals, Inc. 0.00% No change 387 $16K
Allworth Financial LP 0.00% Add +0.6% 335 $14K
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.00% Add +61.2% 303 $13K
Sterling Capital Management LLC 0.00% Add +172.6% 229 $10K
PNC Financial Services Group, Inc. 0.00% New 216 $9K
Brown Brothers Harriman & Co. 0.00% No change 195 $8K
WPG Advisers, LLC 0.01% No change 179 $7K
Quarry LP 0.00% New 156 $7K
Physician Wealth Advisors, Inc. 0.00% Reduce -63.8% 154 $6K
Parallel Advisors, LLC 0.00% No change 106 $4K
True Wealth Design, LLC 0.00% No change 103 $4K
Wolff Wiese Magana LLC 0.00% No change 100 $4K
Altshuler Shaham Ltd 0.00% New 100 $4K
Rothschild Investment LLC 0.00% Add +10.6% 94 $4K
SBI Securities Co., Ltd. 0.00% Add +10.7% 93 $4K
Jones Financial Companies LLLP 0.00% No change 88 $4K
Root Financial Partners, LLC 0.00% No change 70 $3K
Smartleaf Asset Management LLC 0.00% Reduce -88.1% 61 $3K
Cornerstone Financial Management LLC 0.00% — 44 $2K
Westfuller Advisors, LLC 0.00% No change 40 $2K
Assetmark, Inc. 0.00% Reduce -16.7% 35 $1K
CIBC Private Wealth Group LLC 0.00% New 29 $1K
Sunbelt Securities, Inc. 0.00% No change 26 $1K
Covestor Ltd 0.00% Reduce -29.4% 12 $1K
Rosenberg Matthew Hamilton 0.00% No change 7 $292
SJS Investment Consulting Inc. 0.00% New 5 $209
Larson Financial Group LLC 0.00% No change 4 $167
Huntington National Bank 0.00% No change 1 $42
Clearstead Advisors, LLC 0.00% Reduce -93.3% 1 $42
Keating Financial Advisory Services, Inc. 0.00% — 1 $42

"% of holder's portfolio" is NSSC's weight in each manager's 13F, not the share of Napco Security Technologies the manager owns.