PureTech Health (PRTC) Institutional Ownership $18.00 +0.06 (+0.33%) Closing price 10/15/2025 03:48 PM EasternExtended Trading$18.10 +0.10 (+0.56%) As of 10/15/2025 04:04 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 AnalysisAnalyst ForecastsChartCompetitorsFDA EventsHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for PureTech Health (NASDAQ:PRTC)CurrentInstitutional OwnershipPercentage0.04%Number ofInstitutional Buyers(last 12 months)5TotalInstitutional Inflows(last 12 months)$6.75MNumber ofInstitutional Sellers(last 12 months)2TotalInstitutional Outflows(last 12 months)$1.04M Get PRTC Insider Trade Alerts Want to know when executives and insiders are buying or selling PureTech Health stock? 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Skip Chart & View Institutional Buying and Selling Data PRTC Institutional Buying and Selling by Quarter PureTech Health Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails8/14/2025Diadema Partners LP7,324$126K0.0%N/A0.030% 8/11/2025Persistent Asset Partners Ltd1,685$29K0.0%N/A0.007% 7/30/2025Birch Hill Investment Advisors LLC242,676$4.19M0.2%-19.6%1.010% 5/16/2025Pentwater Capital Management LP33,560$664K0.0%+39.2%0.140% 2/17/2025Millennium Management LLC45,264$823K0.0%N/A0.189% 2/14/2025Pentwater Capital Management LP24,111$445K0.0%-3.6%0.101% 1/28/2025Birch Hill Investment Advisors LLC302,000$5.58M0.3%N/A1.261% 7/31/2024Pentwater Capital Management LP16,193$405K0.0%-4.7%0.068% 7/31/2024Birch Hill Investment Advisors LLC302,000$7.55M0.4%N/A1.262% 5/16/2024AWM Investment Company Inc.6,900$197K0.0%N/A0.026% 8/11/2023AWM Investment Company Inc.70,000$2.12M0.3%-95.1%0.254% 3/6/2023OLD Mission Capital LLC6,483$207K0.0%N/A0.023% 2/14/2023AWM Investment Company Inc.1,370,000$6.42M0.9%+1,857.1%4.912% 8/12/2022AWM Investment Company Inc.660,000$2.51M0.4%+2,100.0%2.318% (Data available from 1/1/2016 forward) PRTC Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of PRTC shares? During the previous two years, the following institutional investors and hedge funds held shares of PureTech Health shares: Birch Hill Investment Advisors LLC ($4.19M), Millennium Management LLC ($823K), Pentwater Capital Management LP ($664K), AWM Investment Company Inc. ($197K), and Diadema Partners LP ($126K), Persistent Asset Partners Ltd ($29K).Learn more on PureTech Health's institutional investors. What percentage of PureTech Health's stock is owned by institutional investors? 0.04% of PureTech Health's stock is owned by institutional investors. Learn more on PRTC's institutional investor holdings. Which institutional investors have been buying PureTech Health's stock? The following institutional investors have purchased PureTech Health's stock in the last 24 months: Birch Hill Investment Advisors LLC ($604K), Millennium Management LLC ($45.26K), Pentwater Capital Management LP ($9.45K), Diadema Partners LP ($7.32K), AWM Investment Company Inc. ($6.90K), and Persistent Asset Partners Ltd ($1.69K). How much institutional buying is happening at PureTech Health? Institutional investors have bought a total of 365,722 shares in the last 24 months. This purchase volume represents approximately $6.75M in transactions. Which of PureTech Health's major shareholders have been selling company stock? The following institutional investors have sold PureTech Health stock in the last 24 months: Birch Hill Investment Advisors LLC ($59.32K), and Pentwater Capital Management LP ($889.00). How much institutional selling is happening at PureTech Health? Institutional investors have sold a total of 60,213 shares in the last 24 months. This volume of shares sold represents approximately $1.04M in transactions. 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