Sonnet BioTherapeutics (SONN) Institutional Ownership $1.31 0.00 (0.00%) Closing price 03/28/2025 03:59 PM EasternExtended Trading$1.30 -0.01 (-0.38%) As of 03/28/2025 07:39 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 ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Sonnet BioTherapeutics (NASDAQ:SONN)CurrentInstitutional OwnershipPercentage9.45%Number ofInstitutional Buyers(last 12 months)3TotalInstitutional Inflows(last 12 months)$340.92KNumber ofInstitutional Sellers(last 12 months)0 Get SONN Insider Trade Alerts Want to know when executives and insiders are buying or selling Sonnet BioTherapeutics stock? 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Email Address Skip Chart & View Institutional Buying and Selling Data SONN Institutional Buying and Selling by Quarter Remove Ads Sonnet BioTherapeutics Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails2/17/2025 Two Sigma Investments LP19,203$28K0.0%N/A0.630% 2/11/2025 Virtu Financial LLC39,647$58K0.0%N/A1.300% 8/15/2024 Armistice Capital LLC272,000$255K0.0%N/A8.740% 7/27/2023 Virtu Financial LLC86,624$42K0.0%N/A0.315% 5/19/2023 Anson Funds Management LP1,760,000$634K0.1%N/A6.405% 11/7/2022 Virtu Financial LLC26,914$40K0.0%N/A0.622% 8/2/2022 Advisory Services Network LLC130,525$37K0.0%+158.3%0.215% 5/10/2022 Campion Asset Management90,612$34K0.0%N/A0.150% 8/16/2021 State Street Corp62,688$99K0.0%N/A0.253% 8/13/2021 Vanguard Group Inc.701,634$1.11M0.0%+416.0%2.834% 5/19/2021 Virtu Financial LLC65,106$146K0.0%N/A0.371% 5/18/2021 Citadel Advisors LLC113,264$255K0.0%N/A0.534% 5/18/2021 Jane Street Group LLC17,304$39K0.0%N/A0.099% 5/17/2021 Price T Rowe Associates Inc. MD45,100$101K0.0%N/A0.257% 5/13/2021 Bank of New York Mellon Corp20,399$46K0.0%N/A0.116% 5/7/2021BlackRock Inc.255,761$575K0.0%+3.7%1.457% 3/26/2021 Susquehanna International Group LLP15,434$34K0.0%N/A0.088% 2/5/2021BlackRock Inc.246,555$550K0.0%+2.5%1.435% (Data available from 1/1/2016 forward)Remove Ads SONN Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of SONN shares? During the previous two years, the following institutional investors and hedge funds held shares of Sonnet BioTherapeutics shares: Anson Funds Management LP ($634K), Armistice Capital LLC ($255K), and Virtu Financial LLC ($58K), Two Sigma Investments LP ($28K).Learn more on SONN's institutional investors. What percentage of Sonnet BioTherapeutics stock is owned by institutional investors? 9.45% of Sonnet BioTherapeutics stock is owned by institutional investors. Learn more on SONN's institutional investor holdings. Which institutional investors have been buying Sonnet BioTherapeutics stock? The following institutional investors have purchased Sonnet BioTherapeutics stock in the last 24 months: Anson Funds Management LP ($1.76M), Armistice Capital LLC ($272K), Virtu Financial LLC ($126.27K), and Two Sigma Investments LP ($19.20K). How much institutional buying is happening at Sonnet BioTherapeutics? Institutional investors have bought a total of 2,177,474 shares in the last 24 months. This purchase volume represents approximately $15.21M in transactions. 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