ProPhase Labs (PRPH) Institutional Ownership $0.35 +0.02 (+5.35%) Closing price 04:00 PM EasternExtended Trading$0.34 -0.01 (-2.16%) As of 07:57 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 AnalysisChartCompetitorsEarningsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for ProPhase Labs (NASDAQ:PRPH)CurrentInstitutional OwnershipPercentage9.45%Number ofInstitutional Buyers(last 12 months)14TotalInstitutional Inflows(last 12 months)$1.17MNumber ofInstitutional Sellers(last 12 months)1TotalInstitutional Outflows(last 12 months)$39.13K Get PRPH Insider Trade Alerts Want to know when executives and insiders are buying or selling ProPhase Labs stock? 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Skip Chart & View Institutional Buying and Selling Data PRPH Institutional Buying and Selling by Quarter ProPhase Labs Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails8/12/2025 XTX Topco Ltd102,506$40K0.0%N/A0.247% 8/11/2025 Sykon Capital LLC644,795$252K0.1%N/A1.552% 8/8/2025 Quinn Opportunity Partners LLC218,127$85K0.0%-31.4%0.525% 5/16/2025 Josh Arnold Investment Consultant LLC250,000$100K0.1%N/A0.597% 5/9/2025 Citizens Financial Group Inc. RI270,400$109K0.0%N/A0.646% 4/30/2025 Cerity Partners LLC94,113$38K0.0%N/A0.225% 4/23/2025 Chapin Davis Inc.80,000$32K0.0%+60.0%0.191% 2/17/2025 Squarepoint Ops LLC52,394$40K0.0%N/A0.219% 2/13/2025 Warberg Asset Management LLC101,672$77K0.0%N/A0.426% 2/13/2025 Renaissance Technologies LLC286,485$217K0.0%+33.2%1.200% Get the Latest News and Ratings for PRPH and Related StocksEnter your email address below to receive the latest news and analysts' ratings for ProPhase Labs and its competitors with MarketBeat's FREE daily newsletter. 2/12/2025 Perritt Capital Management Inc190,000$144K0.1%+129.1%0.796% 2/12/2025 Geode Capital Management LLC203,528$154K0.0%+26.6%0.853% 2/7/2025 HighTower Advisors LLC236,781$179K0.0%+32.2%0.992% 2/5/2025 SVB Wealth LLC47,665$36K0.0%N/A0.200% 1/17/2025 Sheets Smith Wealth Management208,300$158K0.0%N/A0.873% 11/16/2024 Geode Capital Management LLC160,735$389K0.0%+9.2%0.673% 11/15/2024 HighTower Advisors LLC179,045$434K0.0%+18.3%0.750% 8/9/2024 Renaissance Technologies LLC220,510$922K0.0%-6.1%1.156% 5/10/2024 Vanguard Group Inc.618,763$4.00M0.0%+1.5%3.429% 2/13/2024 Tower Research Capital LLC TRC15,010$68K0.0%+50.3%0.083% 11/14/2023 Perritt Capital Management Inc.92,300$403K0.2%-5.1%0.548% 11/14/2023 O Shaughnessy Asset Management LLC19,822$87K0.0%-66.2%0.118% 11/8/2023 HighTower Advisors LLC173,124$756K0.0%N/A1.028% 10/23/2023 SVB Wealth LLC47,665$208K0.0%N/A0.283% 10/11/2023 Koss Olinger Consulting LLC42,081$184K0.0%+67.3%0.250% 8/11/2023 O Shaughnessy Asset Management LLC58,559$425K0.0%+8.5%0.341% 8/11/2023 Covestor Ltd5,015$36K0.0%+61.7%0.029% 7/31/2023 Koss Olinger Consulting LLC25,159$183K0.0%+20.0%0.146% 7/27/2023 Victory Capital Management Inc.17,897$130K0.0%+25.9%0.104% 7/17/2023 Ritholtz Wealth Management23,390$170K0.0%-8.7%0.136% 5/11/2023 Acadian Asset Management LLC97,184$739K0.0%-27.6%0.580% 5/4/2023 Precision Wealth Strategies LLC13,668$104K0.2%+35.8%0.082% 5/2/2023 Victory Capital Management Inc.14,214$108K0.0%N/A0.083% 4/13/2023 Chapin Davis Inc.30,000$229K0.1%N/A0.175% 2/10/2023 HRT Financial LP21,238$204K0.0%N/A0.130% 2/10/2023 O Shaughnessy Asset Management LLC54,889$529K0.0%+34.4%0.337% 2/10/2023 ProVise Management Group LLC22,077$213K0.0%N/A0.136% 2/8/2023 UBS Group AG16,541$159K0.0%-35.0%0.102% 2/8/2023 Cambridge Investment Research Advisors Inc.30,744$296K0.0%+22.7%0.189% 2/2/2023 Navellier & Associates Inc.72,386$697K0.1%+80.0%0.445% Why More Investors Are Using Family Trusts to Protect Their Wealth (Ad)For many investors, a family trust can be an essential tool for protecting assets, avoiding probate, and ensuring wealth is passed on according to your wishes. 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We’ve created a free tool that matches you with vetted advisors in your area—each legally bound to act in your best interest.Click here to get your free advisor matches and start planning your legacy today.2/1/2023 Bank of Montreal Can67,900$671K0.0%N/A0.417% 1/19/2023 Ritholtz Wealth Management26,044$251K0.0%+26.0%0.160% 11/15/2022 Perritt Capital Management Inc.122,500$1.38M0.9%-14.3%0.753% 11/15/2022 Quadrature Capital Ltd30,490$345K0.0%+56.5%0.187% 11/15/2022 Keebeck Wealth Management LLC20,000$226K0.0%N/A0.123% 11/14/2022 Renaissance Technologies LLC376,810$4.25M0.0%+50.4%2.354% 11/10/2022 Hillsdale Investment Management Inc.10,028$113K0.0%-86.0%0.063% 11/9/2022 Navellier & Associates Inc.40,219$454K0.1%N/A0.251% 11/7/2022 Jump Financial LLC12,276$138K0.0%-25.6%0.077% 11/3/2022 Avidian Wealth Solutions LLC156,024$1.76M0.1%+6.2%0.975% 10/19/2022 Ritholtz Wealth Management20,676$233K0.0%N/A0.129% 10/18/2022 Bailard Inc.11,200$126K0.0%N/A0.070% 10/17/2022 Cambridge Investment Research Advisors Inc.25,062$283K0.0%+89.7%0.157% 8/13/2022 Virtu Financial LLC34,275$435K0.0%N/A0.221% 7/29/2022 Avidian Wealth Solutions LLC146,934$1.86M0.1%+4.7%0.949% 7/19/2022 Commonwealth Equity Services LLC17,563$222K0.0%-10.6%0.113% 7/14/2022 Precision Wealth Strategies LLC10,495$152K0.1%N/A0.068% 7/13/2022 Cambridge Investment Research Advisors Inc.13,210$168K0.0%N/A0.085% 5/10/2022 Avidian Wealth Solutions LLC140,342$982K0.1%+17.2%0.906% 11/15/2021 Marshall Wace LLP22,801$119K0.0%N/A0.147% 11/15/2021 HighVista Strategies LLC20,256$105K0.1%N/A0.131% 11/12/2021 Renaissance Technologies LLC236,510$1.23M0.0%-17.7%1.524% 11/12/2021 Perritt Capital Management Inc.188,400$980K0.5%+5.9%1.214% 11/10/2021 Avidian Wealth Solutions LLC105,202$547K0.0%+91.4%0.694% 11/9/2021BlackRock Inc.28,778$150K0.0%+14.5%0.190% 8/16/2021 State Street Corp13,795$86K0.0%N/A0.091% 8/16/2021 Kamunting Street Capital Management L.P.123,193$764K0.3%+26.0%0.813% 8/13/2021 Renaissance Technologies LLC287,320$1.78M0.0%-1.1%1.896% 8/13/2021 Northern Trust Corp19,850$123K0.0%-42.9%0.131% 8/13/2021 Geode Capital Management LLC102,705$636K0.0%+26.7%0.678% 8/13/2021 Vanguard Group Inc.466,338$2.89M0.0%+261.2%3.077% 8/12/2021 Dimensional Fund Advisors LP19,530$121K0.0%-61.8%0.129% 8/9/2021 Avidian Wealth Solutions LLC54,963$341K0.0%+425.0%0.363% 5/18/2021 Millennium Management LLC17,567$130K0.0%N/A0.116% (Data available from 1/1/2016 forward) PRPH Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of PRPH shares? During the previous two years, 20 institutional investors and hedge funds held shares of ProPhase Labs. The most heavily invested institutionals were Vanguard Group Inc. ($4.00M), Perritt Capital Management Inc. ($403K), Sykon Capital LLC ($252K), Renaissance Technologies LLC ($217K), Koss Olinger Consulting LLC ($184K), HighTower Advisors LLC ($179K), and Sheets Smith Wealth Management ($158K).Learn more on ProPhase Labs' institutional investors. What percentage of ProPhase Labs' stock is owned by institutional investors? 9.45% of ProPhase Labs' stock is owned by institutional investors. Learn more on PRPH's institutional investor holdings. Which institutional investors have been buying ProPhase Labs' stock? Of the 17 institutional investors that purchased ProPhase Labs' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Sykon Capital LLC ($644.80K), Citizens Financial Group Inc. RI ($270.40K), HighTower Advisors LLC ($258.53K), Josh Arnold Investment Consultant LLC ($250K), Sheets Smith Wealth Management ($208.30K), Perritt Capital Management Inc ($107.07K), and XTX Topco Ltd ($102.51K). How much institutional buying is happening at ProPhase Labs? Institutional investors have bought a total of 2,122,080 shares in the last 24 months. This purchase volume represents approximately $1.17M in transactions. Which of ProPhase Labs' major shareholders have been selling company stock? The following institutional investors have sold ProPhase Labs stock in the last 24 months: Quinn Opportunity Partners LLC ($100K). How much institutional selling is happening at ProPhase Labs? Institutional investors have sold a total of 100,000 shares in the last 24 months. This volume of shares sold represents approximately $39.13K in transactions. 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