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NAPCO Security Technologies (NSSC) Institutional Ownership

NAPCO Security Technologies logo
$34.96 -0.81 (-2.26%)
Closing price 06/5/2026 04:00 PM Eastern
Extended Trading
$34.98 +0.02 (+0.06%)
As of 06/5/2026 05:55 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for NAPCO Security Technologies (NASDAQ:NSSC)

Current
Institutional Ownership
Percentage
85.07%
Number of
Institutional Buyers
(last 12 months)
154
Total
Institutional Inflows
(last 12 months)
$317.58M
Number of
Institutional Sellers
(last 12 months)
114
Total
Institutional Outflows
(last 12 months)
$204.80M
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NSSC Institutional Buying and Selling by Quarter

NAPCO Security Technologies Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
5/19/2026 Bank of America Corp DE221,765$8.74M0.0%-28.6%0.621%
5/19/2026 Janus Henderson Group PLC1,424,963$56.14M0.0%-9.2%3.988%
5/18/2026 Amundi5,304$209K0.0%N/A0.015%
5/18/2026 California State Teachers Retirement System48,496$1.91M0.0%+37.4%0.136%
5/18/2026 Royal Bank of Canada476,558$18.77M0.0%-17.9%1.334%
5/16/2026 The Manufacturers Life Insurance Company 15,562$613K0.0%-2.3%0.044%
5/16/2026 Quantinno Capital Management LP19,464$767K0.0%+3.2%0.054%
5/16/2026 Lazard Asset Management LLC14,312$564K0.0%+6.2%0.040%
5/15/2026 Rice Hall James & Associates LLC146,773$5.78M0.3%+1.3%0.411%
5/14/2026 Healthcare of Ontario Pension Plan Trust Fund32,213$1.27M0.0%-17.0%0.090%
5/14/2026 Renaissance Technologies LLC436,800$17.21M0.0%+31.1%1.223%
5/14/2026 Gabelli Funds LLC18,400$725K0.0%-8.0%0.051%
5/14/2026 Gamco Investors INC. ET AL178,900$7.05M0.1%-5.0%0.501%
5/14/2026 Arrowstreet Capital Limited Partnership846,040$33.33M0.0%-2.1%2.368%
5/14/2026 Sei Investments Co.131,418$5.18M0.0%+39.0%0.368%
5/14/2026 Walleye Capital LLC89,398$3.52M0.0%+48.7%0.250%
5/14/2026 State of Wyoming11,343$447K0.1%-4.2%0.032%
5/13/2026 Cetera Investment Advisers21,559$849K0.0%-5.6%0.060%
5/13/2026 First Trust Advisors LP685,189$26.99M0.0%-4.1%1.918%
5/8/2026 PNC Financial Services Group Inc.5,612$221K0.0%+2,498.1%0.016%
5/7/2026 Dimensional Fund Advisors LP702,852$27.68M0.0%+4.7%1.971%
5/7/2026 KBC Group NV651$26K0.0%N/A0.002%
5/6/2026 Copeland Capital Management LLC2,009,089$79.14M1.8%+41.4%5.634%
5/6/2026 Financiere des Professionnels Fonds d investissement inc.13,775$543K0.0%N/A0.039%
5/6/2026 Bessemer Group Inc.292,867$11.54M0.0%+1,888.1%0.821%
5/5/2026 Mcmorgan & Co. LLC7,751$305K0.0%-31.7%0.022%
5/5/2026 Bank of New York Mellon Corp302,967$11.93M0.0%+40.3%0.850%
5/5/2026 Maryland State Retirement & Pension System5,275$208K0.0%N/A0.015%
5/4/2026 Principal Financial Group Inc.225,314$8.88M0.0%+239.7%0.632%
5/4/2026 Teachers Retirement System of The State of Kentucky51,962$2.05M0.0%+20.5%0.146%
5/1/2026 Commonwealth of Pennsylvania Public School Empls Retrmt SYS8,820$347K0.0%N/A0.025%
5/1/2026 Fifth Third Bancorp15,901$626K0.0%N/A0.045%
5/1/2026 Kornitzer Capital Management Inc. KS169,353$6.67M0.1%-0.6%0.475%
4/30/2026 Hsbc Holdings PLC21,068$825K0.0%-9.4%0.059%
4/30/2026 SkyOak Wealth LLC6,162$243K0.0%-31.2%0.017%
4/30/2026 Granite Investment Partners LLC267,526$10.54M0.6%-4.8%0.750%
4/30/2026 Isthmus Partners LLC115,669$4.56M0.5%-5.1%0.324%
4/30/2026 Oregon Public Employees Retirement Fund8,200$323K0.0%N/A0.023%
4/27/2026 Y Intercept Hong Kong Ltd59,331$2.34M0.0%+113.3%0.166%
4/25/2026 Strs Ohio17,800$701K0.0%-2.7%0.050%
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4/24/2026 Deprince Race & Zollo Inc.118,763$4.68M0.1%+64.9%0.333%
4/22/2026 Pictet Asset Management Holding SA6,132$242K0.0%+24.6%0.017%
4/21/2026 Wasatch Advisors LP242,585$9.56M0.1%+10.7%0.680%
4/21/2026 Louisiana State Employees Retirement System15,800$622K0.0%N/A0.044%
4/20/2026 BTC Capital Management Inc.8,331$328K0.0%N/A0.023%
4/20/2026 Blue Trust Inc.1,108$44K0.0%N/A0.003%
4/20/2026 Banque Cantonale Vaudoise5,340$210K0.0%N/A0.015%
4/16/2026 SG Americas Securities LLC24,220$954K0.0%-43.1%0.068%
3/20/2026 Hsbc Holdings PLC23,266$981K0.0%N/A0.065%
3/17/2026 Rockefeller Capital Management L.P.115,756$4.83M0.0%-66.8%0.325%
3/9/2026 Corient Private Wealth LLC13,587$567K0.0%-46.2%0.038%
2/19/2026 Invesco Ltd.49,109$2.05M0.0%+16.1%0.138%
2/19/2026 Corient Private Wealth LLC23,587$984K0.0%-6.6%0.066%
2/19/2026 Jacobs Equity LLC7,458$311K0.3%N/A0.021%
2/18/2026 Mercer Global Advisors Inc. ADV5,845$244K0.0%-5.2%0.016%
2/18/2026 State of Tennessee Department of Treasury7,620$318K0.0%N/A0.021%
2/18/2026 Cim LLC12,613$526K0.1%-4.2%0.035%
2/18/2026 Uniplan Investment Counsel Inc.115,050$4.80M1.3%-4.7%0.323%
2/18/2026 Voloridge Investment Management LLC185,645$7.74M0.0%-6.1%0.521%
2/18/2026 Wellington Management Group LLP879,298$36.67M0.0%-12.8%2.466%
2/18/2026 Tudor Investment Corp ET AL200,489$8.36M0.0%+124.7%0.562%
2/18/2026 Numerai GP LLC10,383$433K0.1%-20.6%0.029%
2/18/2026 Millennium Management LLC73,487$3.06M0.0%-40.2%0.206%
2/18/2026 Man Group plc119,324$4.98M0.0%+30.7%0.335%
2/18/2026 Janus Henderson Group PLC1,569,363$65.46M0.0%+3.0%4.401%
2/18/2026 Engineers Gate Manager LP67,582$2.82M0.0%+2.4%0.190%
2/18/2026 Balyasny Asset Management L.P.20,097$838K0.0%N/A0.056%
2/17/2026 AQR Capital Management LLC297,027$12.39M0.0%-10.4%0.833%
2/17/2026 Cetera Investment Advisers22,845$953K0.0%+9.0%0.064%
2/17/2026 Jain Global LLC5,160$215K0.0%-16.2%0.014%
2/17/2026 Trexquant Investment LP132,041$5.51M0.0%-27.3%0.370%
2/17/2026 Jump Financial LLC56,580$2.36M0.0%-37.4%0.159%
2/17/2026 Price T Rowe Associates Inc. MD25,291$1.06M0.0%+4.1%0.071%
2/17/2026 Adage Capital Partners GP L.L.C.243,510$10.15M0.0%+10.7%0.683%
2/17/2026 California State Teachers Retirement System35,289$1.47M0.0%+3.9%0.099%
2/17/2026 Russell Investments Group Ltd.146,957$6.13M0.0%+4.0%0.412%
2/17/2026 Crawford Investment Counsel Inc.117,680$4.91M0.1%+13.4%0.330%
2/17/2026 Kemnay Advisory Services Inc.2,563$107K0.0%N/A0.007%
2/17/2026 Captrust Financial Advisors185,462$7.73M0.0%N/A0.520%
2/17/2026 Mangrove Partners IM LLC11,471$478K0.0%N/A0.032%
2/17/2026 Royal Bank of Canada580,557$24.21M0.0%-10.2%1.628%
2/17/2026 Magnetar Financial LLC14,894$621K0.0%N/A0.042%
2/17/2026 Rice Hall James & Associates LLC144,925$6.04M0.3%-7.3%0.406%
2/16/2026 Verition Fund Management LLC63,535$2.65M0.0%-22.4%0.178%
2/16/2026 Healthcare of Ontario Pension Plan Trust Fund38,793$1.62M0.0%N/A0.109%
2/16/2026 Arax Advisory Partners1,464$61K0.0%-90.8%0.004%
2/16/2026 Barclays PLC68,958$2.88M0.0%+25.2%0.193%
2/16/2026 Bridge City Capital LLC59,438$2.48M0.7%-12.4%0.167%
2/13/2026 Kestra Advisory Services LLC4,542$189K0.0%-16.9%0.013%
2/13/2026 Marshall Wace LLP98,006$4.09M0.0%+4.6%0.275%
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2/13/2026 The Manufacturers Life Insurance Company 15,934$664K0.0%-7.2%0.045%
2/13/2026 CANADA LIFE ASSURANCE Co3,364$140K0.0%-80.0%0.009%
2/13/2026 Corient IA LLC10,000$417K0.4%N/A0.028%
2/13/2026 Walleye Capital LLC60,108$2.51M0.0%N/A0.169%
2/13/2026 Visionary Wealth Advisors262,462$10.95M0.5%+1.5%0.736%
2/13/2026 Stifel Financial Corp96,718$4.03M0.0%-6.2%0.271%
2/13/2026 Jacobs Levy Equity Management Inc.414,990$17.31M0.1%-5.3%1.164%
2/13/2026 Public Sector Pension Investment Board56,023$2.34M0.0%N/A0.157%
2/13/2026 First Trust Advisors LP714,382$29.79M0.0%+26.2%2.003%
2/13/2026 SG Capital Management LLC74,221$3.10M0.3%N/A0.208%


NSSC Institutional Ownership - Frequently Asked Questions

During the previous two years, 295 institutional investors and hedge funds held shares of NAPCO Security Technologies. The most heavily invested institutionals were Vanguard Group Inc. ($120.18M), FMR LLC ($85.08M), Copeland Capital Management LLC ($79.14M), Fundsmith LLP ($76.45M), Janus Henderson Group PLC ($56.14M), Doma Perpetual Capital Management LLC ($50.05M), and Geode Capital Management LLC ($42.91M).Learn more on NAPCO Security Technologies' institutional investors.

85.07% of NAPCO Security Technologies' stock is owned by institutional investors. Learn more on NSSC's institutional investor holdings.

Of the 256 institutional investors that purchased NAPCO Security Technologies' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Copeland Capital Management LLC ($1.68M), Wellington Management Group LLP ($942.54K), Arrowstreet Capital Limited Partnership ($893.32K), Fundsmith LLP ($824.95K), Corient Private Wealth LLC ($768.63K), First Trust Advisors LP ($714.38K), and Point72 Asset Management L.P. ($638.17K).

Institutional investors have bought a total of 8,163,475 shares in the last 24 months. This purchase volume represents approximately $317.58M in transactions.

Of the 114 institutional investors that sold NAPCO Security Technologies' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: JPMorgan Chase & Co. ($680.30K), Envestnet Asset Management Inc. ($290.58K), Deutsche Bank AG ($265.53K), Millennium Management LLC ($251.93K), Rockefeller Capital Management L.P. ($232.82K), CenterBook Partners LP ($226.09K), and Tudor Investment Corp ET AL ($216.44K).

Institutional investors have sold a total of 5,066,267 shares in the last 24 months. This volume of shares sold represents approximately $204.80M in transactions.


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This page (NASDAQ:NSSC) was last updated on 6/6/2026 by MarketBeat.com Staff.
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