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NAPCO Security Technologies (NSSC) Institutional Ownership

NAPCO Security Technologies logo
$35.57 -0.39 (-1.08%)
Closing price 10/16/2026 04:00 PM Eastern
Extended Trading
$35.57 0.00 (0.00%)
As of 10/16/2026 07:30 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)
146
Total
Institutional Inflows
(last 12 months)
$615.32M
Number of
Institutional Sellers
(last 12 months)
101
Total
Institutional Outflows
(last 12 months)
$185.48M
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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
10/15/2026State of Alaska Department of Revenue12,993$461K0.0%-29.6%0.036%
10/14/2026Copeland Capital Management LLC2,081,286$74.14M1.7%+3.2%5.819%
10/9/2026GAMMA Investing LLC1,345$48K0.0%+40.3%0.004%
10/6/2026Congress Asset Management Co.304,378$10.84M0.1%+6.6%0.851%
9/9/2026WINTON GROUP Ltd34,239$1.30M0.0%+4.6%0.096%
9/9/2026Engineers Gate Manager LP55,530$2.11M0.0%+34.8%0.155%
9/9/2026Integrated Wealth Concepts LLC1,215$46K0.0%N/A0.003%
8/27/2026Corient Private Wealth LP48,576$1.85M0.0%+326.5%0.136%
8/26/2026HighTower Advisors LLC112,128$4.26M0.0%-5.1%0.314%
8/25/2026VIRGINIA RETIREMENT SYSTEMS ET Al40,948$1.56M0.0%N/A0.115%
8/21/2026SkyOak Wealth LLC7,036$267K0.0%+14.2%0.020%
8/20/2026Fundsmith LLP606,974$23.05M0.2%+58.2%1.699%
8/20/2026Two Sigma Securities LLC8,548$325K0.0%N/A0.024%
8/19/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC196,242$7.45M0.0%-27.9%0.549%
8/19/2026Hsbc Holdings PLC19,847$751K0.0%-5.8%0.056%
8/19/2026Wellington Management Group LLP1,102,280$41.87M0.0%+18.6%3.085%
8/17/2026Raffles Associates LP24,424$928K0.8%N/A0.068%
8/17/2026Jacobs Equity LLC14,144$537K0.4%N/A0.040%
8/17/2026Corient Private Wealth LP48,739$1.85M0.0%N/A0.136%
8/17/2026Bank of America Corp DE158,484$6.02M0.0%N/A0.444%
8/15/2026Freestone Grove Partners LP8,814$335K0.0%N/A0.025%
8/15/2026Man Group plc22,526$856K0.0%N/A0.063%
8/15/2026Jupiter Topco LLC1,682,208$63.86M0.0%N/A4.708%
8/14/2026Raffles Associates LP24,424$928K0.8%N/A0.068%
8/14/2026Hsbc Holdings PLC19,847$751K0.0%N/A0.056%
8/14/2026PDT Partners LLC93,227$3.54M0.2%N/A0.261%
8/14/2026Canada Pension Plan Investment Board71,300$2.71M0.0%N/A0.200%
8/14/2026Legal & General Group Plc84,279$3.20M0.0%N/A0.236%
8/14/2026The Manufacturers Life Insurance Company15,146$575K0.0%N/A0.042%
8/14/2026Mcmorgan & Co. LLC7,661$291K0.0%N/A0.021%
8/14/2026Visionary Wealth Advisors262,368$9.97M0.4%N/A0.734%
8/14/2026Algert Global LLC39,018$1.48M0.0%-83.8%0.109%
8/12/2026Quantbot Technologies LP6,636$252K0.0%N/A0.019%
8/12/2026Ieq Capital LLC13,902$528K0.0%N/A0.039%
8/8/2026First National Bank of Omaha40,823$1.55M0.0%N/A0.114%
8/7/2026BlackRock Inc.5,632,646$213.93M0.0%N/A15.766%
8/7/2026Deutsche Bank AG37,232$1.41M0.0%N/A0.104%
8/7/2026Rice Hall James & Associates LLC153,577$5.83M0.3%N/A0.430%
8/6/2026Horizon Investment Services LLC5,845$222K0.1%N/A0.016%
8/6/2026Global Retirement Partners LLC3,301$125K0.0%N/A0.009%
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8/6/2026Bank of New York Mellon Corp311,009$11.81M0.0%N/A0.870%
8/6/2026State of Wyoming7,900$300K0.0%N/A0.022%
8/6/2026GSA Capital Partners LLP11,173$424K0.0%N/A0.031%
7/9/2026Hennion & Walsh Asset Management Inc.39,026$1.48M0.0%+2.8%0.109%
6/18/2026Pacer Advisors Inc.6,251$246K0.0%N/A0.017%
5/19/2026Bank of America Corp DE221,765$8.74M0.0%-28.6%0.621%
5/19/2026Janus Henderson Group PLC1,424,963$56.14M0.0%-9.2%3.988%
5/18/2026Amundi5,304$209K0.0%N/A0.015%
5/18/2026California State Teachers Retirement System48,496$1.91M0.0%+37.4%0.136%
5/18/2026Royal Bank of Canada476,558$18.77M0.0%-17.9%1.334%
5/16/2026The Manufacturers Life Insurance Company15,562$613K0.0%-2.3%0.044%
5/16/2026Quantinno Capital Management LP19,464$767K0.0%+3.2%0.054%
5/16/2026Lazard Asset Management LLC14,312$564K0.0%+6.2%0.040%
5/15/2026Rice Hall James & Associates LLC146,773$5.78M0.3%+1.3%0.411%
5/14/2026Healthcare of Ontario Pension Plan Trust Fund32,213$1.27M0.0%-17.0%0.090%
5/14/2026Renaissance Technologies LLC436,800$17.21M0.0%+31.1%1.223%
5/14/2026Gabelli Funds LLC18,400$725K0.0%-8.0%0.051%
5/14/2026Gamco Investors INC. ET AL178,900$7.05M0.1%-5.0%0.501%
5/14/2026Arrowstreet Capital Limited Partnership846,040$33.33M0.0%-2.1%2.368%
5/14/2026Sei Investments Co.131,418$5.18M0.0%+39.0%0.368%
5/14/2026Walleye Capital LLC89,398$3.52M0.0%+48.7%0.250%
5/14/2026State of Wyoming11,343$447K0.1%-4.2%0.032%
5/13/2026Cetera Investment Advisers21,559$849K0.0%-5.6%0.060%
5/13/2026First Trust Advisors LP685,189$26.99M0.0%-4.1%1.918%
5/8/2026PNC Financial Services Group Inc.5,612$221K0.0%+2,498.1%0.016%
5/7/2026Dimensional Fund Advisors LP702,852$27.68M0.0%+4.7%1.971%
5/7/2026KBC Group NV651$26K0.0%N/A0.002%
5/6/2026Copeland Capital Management LLC2,009,089$79.14M1.8%+41.4%5.634%
5/6/2026Financiere des Professionnels Fonds d investissement inc.13,775$543K0.0%N/A0.039%
5/6/2026Bessemer Group Inc.292,867$11.54M0.0%+1,888.1%0.821%
5/5/2026Mcmorgan & Co. LLC7,751$305K0.0%-31.7%0.022%
5/5/2026Bank of New York Mellon Corp302,967$11.93M0.0%+40.3%0.850%
5/5/2026Maryland State Retirement & Pension System5,275$208K0.0%N/A0.015%
5/4/2026Principal Financial Group Inc.225,314$8.88M0.0%+239.7%0.632%
5/4/2026Teachers Retirement System of The State of Kentucky51,962$2.05M0.0%+20.5%0.146%
5/1/2026Commonwealth of Pennsylvania Public School Empls Retrmt SYS8,820$347K0.0%N/A0.025%
5/1/2026Fifth Third Bancorp15,901$626K0.0%N/A0.045%
5/1/2026Kornitzer Capital Management Inc. KS169,353$6.67M0.1%-0.6%0.475%
4/30/2026Hsbc Holdings PLC21,068$825K0.0%-9.4%0.059%
4/30/2026SkyOak Wealth LLC6,162$243K0.0%-31.2%0.017%
4/30/2026Granite Investment Partners LLC267,526$10.54M0.6%-4.8%0.750%
4/30/2026Isthmus Partners LLC115,669$4.56M0.5%-5.1%0.324%
4/30/2026Oregon Public Employees Retirement Fund8,200$323K0.0%N/A0.023%
4/27/2026Y Intercept Hong Kong Ltd59,331$2.34M0.0%+113.3%0.166%
4/25/2026Strs Ohio17,800$701K0.0%-2.7%0.050%
4/24/2026Deprince Race & Zollo Inc.118,763$4.68M0.1%+64.9%0.333%
4/22/2026Pictet Asset Management Holding SA6,132$242K0.0%+24.6%0.017%
4/21/2026Wasatch Advisors LP242,585$9.56M0.1%+10.7%0.680%
4/21/2026Louisiana State Employees Retirement System15,800$622K0.0%N/A0.044%
4/20/2026BTC Capital Management Inc.8,331$328K0.0%N/A0.023%
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4/20/2026Blue Trust Inc.1,108$44K0.0%N/A0.003%
4/20/2026Banque Cantonale Vaudoise5,340$210K0.0%N/A0.015%
4/16/2026SG Americas Securities LLC24,220$954K0.0%-43.1%0.068%
3/20/2026Hsbc Holdings PLC23,266$981K0.0%N/A0.065%
3/17/2026Rockefeller Capital Management L.P.115,756$4.83M0.0%-66.8%0.325%
3/9/2026Corient Private Wealth LLC13,587$567K0.0%-46.2%0.038%
2/19/2026Invesco Ltd.49,109$2.05M0.0%+16.1%0.138%
2/19/2026Corient Private Wealth LLC23,587$984K0.0%-6.6%0.066%
2/19/2026Jacobs Equity LLC7,458$311K0.3%N/A0.021%
2/18/2026Mercer Global Advisors Inc. ADV5,845$244K0.0%-5.2%0.016%


NSSC Institutional Ownership - Frequently Asked Questions

During the previous two years, 283 institutional investors and hedge funds held shares of NAPCO Security Technologies. The most heavily invested institutionals were BlackRock Inc. ($213.93M), Vanguard Group Inc. ($120.18M), FMR LLC ($85.08M), Copeland Capital Management LLC ($74.14M), Jupiter Topco LLC ($63.86M), Janus Henderson Group PLC ($56.14M), and Doma Perpetual Capital Management LLC ($50.05M).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 238 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: BlackRock Inc. ($5.63M), Copeland Capital Management LLC ($1.74M), Jupiter Topco LLC ($1.68M), Wellington Management Group LLP ($1.12M), Fundsmith LLP ($1.05M), Arrowstreet Capital Limited Partnership ($893.32K), and Corient Private Wealth LLC ($768.63K).

Institutional investors have bought a total of 15,588,060 shares in the last 24 months. This purchase volume represents approximately $615.32M in transactions.

Of the 100 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), Algert Global LLC ($268.91K), Deutsche Bank AG ($265.53K), Millennium Management LLC ($251.93K), Rockefeller Capital Management L.P. ($232.82K), Envestnet Asset Management Inc. ($221.25K), and Tudor Investment Corp ET AL ($216.44K).

Institutional investors have sold a total of 4,430,113 shares in the last 24 months. This volume of shares sold represents approximately $185.48M in transactions.


Related Companies

Institutional ownership data for NASDAQ:NSSC is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 10/15/2026. New 13F filings are added each quarter as they're published.
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