Alpha Pro Tech (APT) Institutional Ownership $4.60 -0.01 (-0.22%) Closing price 04:00 PM EasternExtended Trading$4.60 0.00 (-0.11%) As of 04:10 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 Polygon.io. Learn more. Add Compare Share Share Ownership Stock AnalysisChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Alpha Pro Tech (NYSE:APT)CurrentInstitutional OwnershipPercentage22.69%Number ofInstitutional Buyers(last 12 months)6TotalInstitutional Inflows(last 12 months)$1.04MNumber ofInstitutional Sellers(last 12 months)7TotalInstitutional Outflows(last 12 months)$509.85K Get APT Insider Trade Alerts Want to know when executives and insiders are buying or selling Alpha Pro Tech stock? 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Email Address Skip Chart & View Institutional Buying and Selling Data APT Institutional Buying and Selling by Quarter Alpha Pro Tech Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails8/14/2025 NewEdge Advisors LLC15,819$74K0.0%N/A0.151% 8/11/2025 Inspire Advisors LLC58,454$274K0.0%N/A0.538% 8/1/2025 James Investment Research Inc.11,050$52K0.0%N/A0.102% 5/21/2025 Acadian Asset Management LLC148,573$741K0.0%-3.7%1.368% 5/19/2025 Jane Street Group LLC23,314$117K0.0%N/A0.215% 4/30/2025 Linden Thomas Advisory Services LLC187,610$938K0.1%+17.1%1.725% 2/17/2025 Needham Investment Management LLC612,500$3.24M0.2%+0.4%5.568% 2/13/2025 Renaissance Technologies LLC565,475$2.99M0.0%-4.2%5.141% 2/12/2025 O Shaughnessy Asset Management LLC51,560$273K0.0%-38.5%0.469% 2/12/2025 Arrowstreet Capital Limited Partnership60,731$321K0.0%-4.8%0.552% Get the Latest News and Ratings for APT and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Alpha Pro Tech and its competitors with MarketBeat's FREE daily newsletter. 2/7/2025 Essex Investment Management Co. LLC34,793$184K0.0%-10.4%0.316% 1/21/2025 Linden Thomas Advisory Services LLC160,153$847K0.1%-6.9%1.456% 1/15/2025 Ritholtz Wealth Management19,156$101K0.0%-43.9%0.174% 11/15/2024 Needham Investment Management LLC610,000$3.48M0.3%+1.2%5.546% 10/17/2024 Inspire Advisors LLC57,273$326K0.0%N/A0.490% 8/9/2024 Renaissance Technologies LLC632,375$3.48M0.0%+1.3%5.410% 8/9/2024 Dimensional Fund Advisors LP125,018$688K0.0%+37.0%1.070% 8/6/2024 Acadian Asset Management LLC159,825$877K0.0%+32.9%1.367% 8/1/2024 Ritholtz Wealth Management36,276$200K0.0%-8.4%0.310% 7/10/2024 Linden Thomas Advisory Services LLC163,644$900K0.1%+2.2%1.400% 5/13/2024 O Shaughnessy Asset Management LLC90,015$562K0.0%+226.4%0.770% 5/11/2024 Hillsdale Investment Management Inc.14,646$91K0.0%N/A0.125% 5/10/2024 Acadian Asset Management LLC120,296$750K0.0%+893.0%1.029% 2/8/2024 Essex Investment Management Co. LLC112,415$595K0.1%-28.5%0.965% 1/18/2024 Ritholtz Wealth Management13,137$69K0.0%N/A0.113% 11/13/2023 Acadian Asset Management LLC12,115$52K0.0%-25.0%0.104% 11/9/2023 Essex Investment Management Co. LLC157,318$683K0.1%-2.9%1.321% 8/7/2023 Acadian Asset Management LLC16,153$64K0.0%-54.3%0.133% 7/28/2023 Lion Street Advisors LLC11,088$67K0.0%N/A0.091% 2/1/2023 Legato Capital Management LLC13,344$54K0.0%N/A0.107% 1/20/2023 Lion Street Advisors LLC11,088$67K0.0%N/A0.089% 1/13/2023 Allworth Financial LP10,000$40K0.0%+100.0%0.080% 11/15/2022 Essex Investment Management Co. LLC157,728$639K0.1%-6.4%1.260% 8/13/2022 Needham Investment Management LLC220,000$981K0.2%+25.7%1.696% 8/12/2022 Essex Investment Management Co. LLC168,547$752K0.1%N/A1.300% 7/19/2022 Lion Street Advisors LLC11,088$65K0.0%N/A0.085% 2/14/2022 PDT Partners LLC18,344$110K0.0%N/A0.139% 2/11/2022 Renaissance Technologies LLC611,163$3.65M0.0%+8.8%4.619% 2/10/2022 WINTON GROUP Ltd14,517$87K0.0%-87.1%0.110% 2/9/2022Geneos Wealth Management Inc.9,450$56K0.0%-80.8%0.071% BREAKING: The House just passed 3 pro-crypto bills! (Ad)THREE pro-crypto bills just passed the House! Now, experts believe altcoin season is officially here. Discover the under-the-radar project I believe will skyrocket as a result.11/16/2021Cetera Advisor Networks LLC11,700$79K0.0%N/A0.088% 11/16/2021 Two Sigma Securities LLC22,337$150K0.0%N/A0.169% 11/16/2021 Lion Street Advisors LLC11,088$72K0.0%N/A0.084% 11/15/2021 Jacobi Capital Management LLC10,000$67K0.0%N/A0.076% 11/15/2021 Franklin Resources Inc.26,900$181K0.0%N/A0.203% 11/12/2021 Renaissance Technologies LLC561,663$3.78M0.0%+13.5%4.245% 11/9/2021Geneos Wealth Management Inc.49,167$329K0.0%N/A0.372% 11/9/2021 Keebeck Alpha LP30,297$204K0.1%N/A0.229% 11/9/2021BlackRock Inc.243,060$1.64M0.0%+13.2%1.839% 11/5/2021 Advisor Group Holdings Inc.13,848$93K0.0%+309.1%0.105% 11/2/2021Raymond James Financial Services Advisors Inc.10,033$68K0.0%-29.1%0.076% 10/28/2021 WINTON GROUP Ltd112,201$755K0.0%-7.4%0.849% 9/17/2021 Virtu Financial LLC10,014$86K0.0%N/A0.076% 9/3/2021Parametric Portfolio Associates LLC17,043$146K0.0%-15.6%0.129% 8/17/2021 Salem Investment Counselors Inc.7,372$63K0.0%N/A0.056% 8/17/2021 Millennium Management LLC166,272$1.43M0.0%N/A1.258% 8/17/2021 Bridgeway Capital Management LLC38,500$330K0.0%-64.8%0.291% 8/16/2021 AQR Capital Management LLC47,712$409K0.0%-70.8%0.361% 8/16/2021 Royal Bank of Canada26,771$229K0.0%+2,534.9%0.203% 8/16/2021Credit Suisse AG13,261$113K0.0%N/A0.100% 8/16/2021 State Street Corp56,641$485K0.0%-72.1%0.429% 8/16/2021Tibra Equities Europe Ltd40,900$351K0.1%N/A0.309% 8/16/2021 Goldman Sachs Group Inc.33,599$288K0.0%N/A0.254% 8/13/2021 Renaissance Technologies LLC495,063$4.24M0.0%+6.1%3.746% 8/13/2021 Northern Trust Corp23,172$198K0.0%-81.8%0.175% 8/13/2021 Geode Capital Management LLC103,839$889K0.0%-49.2%0.786% 8/13/2021 Vanguard Group Inc.598,786$5.13M0.0%-35.8%4.530% 8/12/2021 Dimensional Fund Advisors LP75,903$650K0.0%-2.3%0.574% 8/12/2021 Ground Swell Capital LLC15,136$130K0.6%N/A0.115% 8/12/2021 JPMorgan Chase & Co.51,537$441K0.0%-17.2%0.390% 8/12/2021Ergoteles LLC55,900$479K0.0%N/A0.423% 8/11/2021 Bank of New York Mellon Corp58,456$500K0.0%-22.4%0.442% 8/11/2021BlackRock Inc.214,668$1.84M0.0%-77.3%1.624% 8/11/2021 Susquehanna Fundamental Investments LLC72,992$626K0.0%N/A0.547% 8/10/2021 Cambridge Investment Research Advisors Inc.14,305$123K0.0%+16.2%0.107% 8/10/2021 Citigroup Inc.25,034$215K0.0%-6.8%0.188% 8/10/2021 WINTON GROUP Ltd121,180$1.04M0.1%+7.3%0.909% 8/6/2021 Sei Investments Co.16,619$88K0.0%N/A0.125% 8/2/2021 Advisor Group Holdings Inc.3,385$29K0.0%-27.0%0.025% (Data available from 1/1/2016 forward) APT Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of APT shares? During the previous two years, 14 institutional investors and hedge funds held shares of Alpha Pro Tech. The most heavily invested institutionals were Needham Investment Management LLC ($3.24M), Renaissance Technologies LLC ($2.99M), Linden Thomas Advisory Services LLC ($938K), Acadian Asset Management LLC ($741K), Dimensional Fund Advisors LP ($688K), Arrowstreet Capital Limited Partnership ($321K), and Inspire Advisors LLC ($274K).Learn more on Alpha Pro Tech's institutional investors. What percentage of Alpha Pro Tech's stock is owned by institutional investors? 22.69% of Alpha Pro Tech's stock is owned by institutional investors. Learn more on APT's institutional investor holdings. Which institutional investors have been buying Alpha Pro Tech's stock? Of the 12 institutional investors that purchased Alpha Pro Tech's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Acadian Asset Management LLC ($147.71K), Inspire Advisors LLC ($115.73K), O Shaughnessy Asset Management LLC ($62.44K), Dimensional Fund Advisors LP ($33.78K), Linden Thomas Advisory Services LLC ($30.97K), Jane Street Group LLC ($23.31K), and NewEdge Advisors LLC ($15.82K). How much institutional buying is happening at Alpha Pro Tech? Institutional investors have bought a total of 203,367 shares in the last 24 months. This purchase volume represents approximately $1.04M in transactions. Which of Alpha Pro Tech's major shareholders have been selling company stock? The following institutional investors have sold Alpha Pro Tech stock in the last 24 months: O Shaughnessy Asset Management LLC ($32.22K), Renaissance Technologies LLC ($24.80K), Ritholtz Wealth Management ($14.99K), Linden Thomas Advisory Services LLC ($11.88K), Acadian Asset Management LLC ($5.71K), Essex Investment Management Co. LLC ($4.03K), and Arrowstreet Capital Limited Partnership ($3.07K). How much institutional selling is happening at Alpha Pro Tech? Institutional investors have sold a total of 96,694 shares in the last 24 months. This volume of shares sold represents approximately $509.85K in transactions. 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