MBX Biosciences (MBX) Institutional Ownership $7.79 -0.34 (-4.18%) Closing price 04:00 PM EasternExtended Trading$7.77 -0.02 (-0.26%) As of 06:14 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 FilingsTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for MBX Biosciences (NYSE:MBX)Number ofInstitutional Buyers(last 12 months)38TotalInstitutional Inflows(last 12 months)$413.90MNumber ofInstitutional Sellers(last 12 months)5TotalInstitutional Outflows(last 12 months)$6.00M Get MBX Insider Trade Alerts Want to know when executives and insiders are buying or selling MBX Biosciences stock? 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Email Address Skip Chart & View Institutional Buying and Selling Data MBX Institutional Buying and Selling by Quarter Remove Ads MBX Biosciences Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails3/24/2025 Wellington Management Group LLP2,909,639$52.99M0.0%-1.0%8.705% 2/17/2025 Woodline Partners LP608,721$11.22M0.1%+17.1%1.821% 2/17/2025 Parkman Healthcare Partners LLC170,000$3.13M0.4%N/A0.509% 2/17/2025 Nuveen Asset Management LLC14,471$267K0.0%N/A0.043% 2/17/2025 Millennium Management LLC333,642$6.15M0.0%-24.2%0.998% 2/17/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.6,335$117K0.0%N/A0.019% 2/17/2025 Deutsche Bank AG4,338$80K0.0%N/A0.013% 2/17/2025 Driehaus Capital Management LLC1,581,760$29.15M0.2%+61.2%4.733% 2/17/2025 Citadel Advisors LLC220,330$4.06M0.0%+62.5%0.659% 2/17/2025 Bank of America Corp DE16,059$296K0.0%N/A0.048% Get the Latest News and Ratings for MBX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for MBX Biosciences and its competitors with MarketBeat's FREE daily newsletter. 2/17/2025 BNP Paribas Financial Markets1,486$27K0.0%N/A0.004% 2/17/2025 Alyeska Investment Group L.P.174,700$3.22M0.0%-22.4%0.523% 2/14/2025 Schonfeld Strategic Advisors LLC71,500$1.32M0.0%N/A0.214% 2/14/2025 Northern Trust Corp90,682$1.67M0.0%N/A0.271% 2/14/2025 The Manufacturers Life Insurance Company 49,675$916K0.0%+7.5%0.149% 2/14/2025 Virtus ETF Advisers LLC3,468$64K0.0%N/A0.010% 2/14/2025 Price T Rowe Associates Inc. MD1,161,527$21.41M0.0%-2.6%3.476% 2/14/2025 MetLife Investment Management LLC7,230$133K0.0%N/A0.022% 2/13/2025 Marshall Wace LLP25,900$477K0.0%+115.8%0.077% 2/13/2025 Wells Fargo & Company MN5,844$108K0.0%N/A0.017% 2/12/2025 Geode Capital Management LLC265,703$4.90M0.0%+1,093.2%0.795% 2/12/2025 Franklin Resources Inc.369,300$6.81M0.0%-17.9%1.105% 2/12/2025 Wellington Management Group LLP2,909,639$52.99M0.0%-1.0%8.706% 2/12/2025 Norges Bank25,000$461K0.0%N/A0.075% 2/12/2025 BIT Capital GmbH12,743$235K0.0%N/A0.038% 2/12/2025 JPMorgan Chase & Co.9,106$168K0.0%N/A0.027% 2/11/2025 Corebridge Financial Inc.5,593$103K0.0%N/A0.017% 2/11/2025 Platinum Investment Management Ltd.162,090$2.99M0.2%+8.1%0.485% 2/6/2025 Charles Schwab Investment Management Inc.93,311$1.72M0.0%N/A0.279% 2/4/2025 Bank of New York Mellon Corp23,914$441K0.0%N/A0.072% 1/30/2025 Rhumbline Advisers9,472$175K0.0%N/A0.028% 11/27/2024 Franklin Resources Inc.450,000$11.69M0.0%N/A1.347% 11/19/2024 Barclays PLC16,400$426K0.0%N/A0.049% 11/18/2024 Teachers Retirement System of The State of Kentucky26,708$694K0.0%N/A0.080% 11/16/2024 Geode Capital Management LLC22,269$579K0.0%N/A0.067% 11/15/2024 Frazier Life Sciences Management L.P.5,985,347$155.50M6.2%N/A17.909% 11/15/2024 Barclays PLC16,400$426K0.0%N/A0.049% 11/15/2024 Jane Street Group LLC26,570$690K0.0%N/A0.080% 11/15/2024 Wellington Management Group LLP2,937,853$74.26M0.0%N/A8.791% 11/15/2024 Soros Fund Management LLC30,000$779K0.0%N/A0.090% Your Wealth is Under Attack (Ad)Please don't wait—this is your moment to take action. Download your Wealth Protection Guide now, claim your free gift, and see how Trump's victory could spark major gains for gold.Click here now to see how to stop them in their tracks!11/15/2024 RA Capital Management L.P.1,511,334$39.26M0.5%N/A4.522% 11/15/2024 Point72 DIFC Ltd24,011$624K0.0%N/A0.072% 11/15/2024 Point72 Asset Management L.P.15,600$405K0.0%N/A0.047% 11/15/2024 Maven Securities LTD50,000$1.30M0.0%N/A0.150% 11/15/2024 Point72 Asia Singapore Pte. Ltd.10,706$278K0.1%N/A0.032% 11/14/2024 NEA Management Company LLC3,614,486$93.90M5.1%N/A10.816% 11/13/2024 The Manufacturers Life Insurance Company46,194$1.20M0.0%N/A0.138% (Data available from 1/1/2016 forward)Remove Ads MBX Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of MBX shares? During the previous two years, 41 institutional investors and hedge funds held shares of MBX Biosciences. The most heavily invested institutionals were Frazier Life Sciences Management L.P. ($155.50M), NEA Management Company LLC ($93.90M), Wellington Management Group LLP ($52.99M), RA Capital Management L.P. ($39.26M), Driehaus Capital Management LLC ($29.15M), Price T Rowe Associates Inc. MD ($21.41M), and Woodline Partners LP ($11.22M).Learn more on MBX's institutional investors. Which institutional investors have been buying MBX Biosciences stock? Of the 38 institutional investors that purchased MBX Biosciences stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Frazier Life Sciences Management L.P. ($5.99M), NEA Management Company LLC ($3.61M), Wellington Management Group LLP ($2.94M), RA Capital Management L.P. ($1.51M), Driehaus Capital Management LLC ($600.44K), Franklin Resources Inc. ($450K), and Geode Capital Management LLC ($265.70K). How much institutional buying is happening at MBX Biosciences? Institutional investors have bought a total of 16,401,541 shares in the last 24 months. This purchase volume represents approximately $413.90M in transactions. Which MBX Biosciences major shareholders have been selling company stock? The following institutional investors have sold MBX Biosciences stock in the last 24 months: Millennium Management LLC ($106.77K), Franklin Resources Inc. ($80.70K), Wellington Management Group LLP ($56.43K), Alyeska Investment Group L.P. ($50.30K), and Price T Rowe Associates Inc. MD ($31.41K). How much institutional selling is happening at MBX Biosciences? Institutional investors have sold a total of 325,608 shares in the last 24 months. This volume of shares sold represents approximately $6.00M in transactions. 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