Rallybio (RLYB) Institutional Ownership $0.33 -0.03 (-8.25%) Closing price 06/27/2025 04:00 PM EasternExtended Trading$0.34 +0.01 (+1.92%) As of 06/27/2025 05:13 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 ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Rallybio (NASDAQ:RLYB)CurrentInstitutional OwnershipPercentage90.34%Number ofInstitutional Buyers(last 12 months)10TotalInstitutional Inflows(last 12 months)$6.55MNumber ofInstitutional Sellers(last 12 months)5TotalInstitutional Outflows(last 12 months)$781.29K Get RLYB Insider Trade Alerts Want to know when executives and insiders are buying or selling Rallybio stock? 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Email Address Skip Chart & View Institutional Buying and Selling Data RLYB Institutional Buying and Selling by Quarter Rallybio Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/16/2025 Allostery Investments LP752,235$492K0.7%-6.4%1.808% 4/9/2025 Canaan Partners XI LLC1,532,552$1.00M1.5%-9.7%3.683% 2/17/2025 Northeast Financial Consultants Inc96,422$93K0.0%+336.5%0.232% 2/17/2025 Allostery Investments LP803,398$771K0.8%N/A1.936% 2/17/2025 Almitas Capital LLC1,298,119$1.25M0.3%+48.3%3.129% 2/13/2025 Renaissance Technologies LLC441,318$424K0.0%+9.3%1.064% 1/21/2025 Canaan Partners XI LLC1,697,684$1.63M2.1%-11.2%4.092% 11/16/2024 Geode Capital Management LLC244,986$287K0.0%+11.4%0.590% 11/15/2024 Jane Street Group LLC22,275$26K0.0%-58.0%0.054% 11/15/2024 Point72 Asia Singapore Pte. Ltd.22,119$26K0.0%-51.4%0.053% Get the Latest News and Ratings for RLYB and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Rallybio and its competitors with MarketBeat's FREE daily newsletter. 11/13/2024 FMR LLC2,315,480$2.71M0.0%+1.1%5.581% 10/16/2024 Canaan Partners XI LLC1,910,987$2.24M1.9%-7.2%4.610% 9/16/2024 Point72 Asia Singapore Pte. Ltd.45,531$61K0.0%N/A0.110% 8/16/2024 Almitas Capital LLC100,876$135K0.1%N/A0.243% 8/15/2024 Point72 Asia Singapore Pte. Ltd.45,531$61K0.0%N/A0.110% 8/12/2024 Hsbc Holdings PLC17,531$25K0.0%N/A0.042% 8/9/2024 Renaissance Technologies LLC340,700$457K0.0%-30.2%0.822% 8/9/2024 Johnson & Johnson3,636,363$4.87M1.2%N/A8.773% 8/6/2024 Acadian Asset Management LLC67,695$89K0.0%+116.3%0.163% 5/10/2024 Acadian Asset Management LLC31,294$57K0.0%N/A0.083% 5/10/2024 Vanguard Group Inc.1,076,771$1.99M0.0%+1.2%2.848% 1/31/2024 abrdn plc1,727,067$4.13M0.0%N/A4.570% 1/12/2024 SG Americas Securities LLC16,813$40K0.0%N/A0.044% 11/13/2023CHI Advisors LLC390,734$1.32M0.4%-28.0%1.034% 11/13/2023 Mariner LLC408,180$1.38M0.0%-32.7%1.080% 11/8/2023 Financial Security Advisor Inc.50,278$169K0.1%N/A0.133% 9/21/2023 Barclays PLC6,103$35K0.0%-36.3%0.016% 8/22/2023CHI Advisors LLC542,774$3.07M0.9%-28.6%1.436% 8/15/2023 Caas Capital Management LP31,470$178K0.0%-80.8%0.083% 8/11/2023 Sectoral Asset Management Inc.375,960$2.13M0.4%-31.9%0.995% 8/4/2023 American International Group Inc.14,715$83K0.0%+62.0%0.039% 5/12/2023 Sectoral Asset Management Inc.551,937$3.15M0.6%-11.0%1.450% 5/11/2023CHI Advisors LLC760,543$4.34M1.2%+4.7%1.997% 4/24/2023 DekaBank Deutsche Girozentrale30,000$168K0.0%N/A0.079% 2/10/2023 Sectoral Asset Management Inc.619,891$4.07M0.8%+165.6%1.935% 2/10/2023Tekla Capital Management LLC1,727,067$11.35M0.4%-0.8%5.392% 2/6/2023 New Leaf Venture Partners L.L.C.3,301,603$21.69M15.7%+43.4%10.308% 2/1/2023 Canaan Partners XI LLC2,059,712$13.53M10.6%-14.5%6.431% 11/15/2022 Northeast Financial Consultants Inc13,066$189K0.0%N/A0.041% 11/14/2022 MetLife Investment Management LLC10,279$149K0.0%N/A0.032% When This Happens, You Don’t Wait. You Act. (Ad)This same signal has appeared twice before in the past 8 years — both times, it kicked off major moves in crypto. Now it’s back, and the smart money is already positioning. A free training reveals the step-by-step strategy and altcoin picks designed to help you capitalize on the next wave.Missed the Last Crypto Boom? Don’t Miss This One - PLUS Claim your $10 in Bitcoin11/8/2022 New York State Common Retirement Fund10,337$150K0.0%-19.8%0.032% 11/1/2022Tekla Capital Management LLC1,740,931$25.19M1.0%-9.8%5.418% 8/15/2022 Laurion Capital Management LP402,000$3.04M0.0%+0.5%1.251% 8/11/2022 Alps Advisors Inc.19,060$144K0.0%N/A0.059% 7/29/2022Tekla Capital Management LLC1,931,120$14.58M0.6%-12.0%6.010% 5/27/2022 Walleye Capital LLC59,543$416K0.0%N/A0.185% 5/13/2022Tekla Capital Management LLC2,195,010$15.32M0.5%-4.9%6.832% 5/10/2022 Sectoral Asset Management Inc.385,069$2.69M0.5%+27.8%1.198% 2/9/2022 AJU IB Investment Co. Ltd.754,678$7.20M10.0%N/A2.349% 2/8/2022 Northern Trust Corp61,571$588K0.0%+7.1%0.192% 2/3/2022 Canaan Partners XI LLC2,409,712$22.99M5.9%N/A7.500% 1/28/2022 Allspring Global Investments Holdings LLC2,914$27K0.0%N/A0.009% 11/16/2021 Laurion Capital Management LP400,000$7.03M0.0%N/A1.245% 11/15/2021 Viking Global Investors LP4,194,777$73.74M0.2%N/A13.056% 11/15/2021 Sectoral Asset Management Inc527,136$9.27M0.8%N/A1.641% 11/15/2021 Caas Capital Management LP10,000$176K0.0%N/A0.031% 11/12/2021 New Leaf Venture Partners L.L.C.2,301,603$40.46M11.7%N/A7.163% 11/12/2021 Geode Capital Management LLC69,963$1.23M0.0%N/A0.218% 11/9/2021BlackRock Inc.292,204$5.14M0.0%N/A0.909% 11/4/2021 Deutsche Bank AG4,139$73K0.0%N/A0.013% 11/2/2021 New York State Common Retirement Fund4,396$77K0.0%N/A0.014% (Data available from 1/1/2016 forward) RLYB Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of RLYB shares? During the previous two years, 22 institutional investors and hedge funds held shares of Rallybio. The most heavily invested institutionals were Johnson & Johnson ($4.87M), abrdn plc ($4.13M), FMR LLC ($2.71M), Sectoral Asset Management Inc. ($2.13M), Vanguard Group Inc. ($1.99M), Mariner LLC ($1.38M), and CHI Advisors LLC ($1.32M).Learn more on Rallybio's institutional investors. What percentage of Rallybio's stock is owned by institutional investors? 90.34% of Rallybio's stock is owned by institutional investors. Learn more on RLYB's institutional investor holdings. Which institutional investors have been buying Rallybio's stock? Of the 15 institutional investors that purchased Rallybio's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Johnson & Johnson ($3.64M), abrdn plc ($1.73M), Allostery Investments LP ($803.40K), Almitas Capital LLC ($523.56K), Point72 Asia Singapore Pte. Ltd. ($91.06K), Northeast Financial Consultants Inc ($74.33K), and Acadian Asset Management LLC ($67.70K). How much institutional buying is happening at Rallybio? Institutional investors have bought a total of 5,270,670 shares in the last 24 months. This purchase volume represents approximately $6.55M in transactions. Which of Rallybio's major shareholders have been selling company stock? The following institutional investors have sold Rallybio stock in the last 24 months: Canaan Partners XI LLC ($527.16K), Renaissance Technologies LLC ($147.40K), Allostery Investments LP ($51.16K), Jane Street Group LLC ($30.81K), and Point72 Asia Singapore Pte. Ltd. ($23.41K). How much institutional selling is happening at Rallybio? Institutional investors have sold a total of 779,940 shares in the last 24 months. This volume of shares sold represents approximately $781.29K in transactions. 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