Mesoblast (MESO) Short Interest Ratio & Short Volume $15.07 -0.53 (-3.40%) Closing price 04:00 PM EasternExtended Trading$15.10 +0.04 (+0.23%) As of 06:51 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 Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsFDA EventsFinancialsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Mesoblast Short Interest DataMesoblast (MESO) has a short interest of 2.42 million shares, representing 2.33% of the float (the number of shares available for trading by the public). This marks a 1.68% increase in short interest from the previous month. The short interest ratio (days to cover) is 10.0, indicating that it would take 10.0 days of the average trading volume of 222,844 shares to cover all short positions.Current Short Interest2,420,000 sharesPrevious Short Interest2,380,000 sharesChange Vs. Previous Month+1.68%Dollar Volume Sold Short$33.47 millionShort Interest Ratio10.0 Days to CoverLast Record DateAugust 31, 2025Outstanding Shares128,000,000 sharesShort Percent of Float2.33%Today's Trading Volume182,021 sharesAverage Trading Volume222,844 sharesToday's Volume Vs. Average82% Short Selling Mesoblast? Sign up to receive the latest short interest report for Mesoblast and its competitors with MarketBeat's FREE newsletter. Email Address Get Report View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. 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Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartMESO Short Interest Over TimeMESO Days to Cover Over TimeMESO Percentage of Float Shorted Over Time Mesoblast Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 8/31/20252,420,000 shares $33.47 million +1.7%2.3%10 $13.83 8/15/20252,380,000 shares $38.68 million No ChangeN/A10.8 $16.25 7/31/20252,380,000 shares $36.32 million -12.5%2.3%9.9 $15.26 7/15/20252,720,000 shares $29.81 million +7.5%N/A11.2 $10.96 6/30/20252,530,000 shares $27.55 million -6.0%2.4%12 $10.89 6/15/20252,690,000 shares $31.69 million +3.1%2.6%12.5 $11.78 5/31/20252,610,000 shares $27.69 million -9.7%2.5%11.2 $10.61 5/15/20252,890,000 shares $34.54 million +7.8%2.8%10.5 $11.95 4/30/20252,680,000 shares $30.55 million -1.5%N/A10.3 $11.40 4/15/20252,720,000 shares $29.29 million +9.2%2.6%9.6 $10.77 Get the Latest News and Ratings for MESO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Mesoblast and its competitors with MarketBeat's FREE daily newsletter. 3/31/20252,490,000 shares $31.08 million -6.0%2.4%7.2 $12.48 3/15/20252,650,000 shares $35.91 million +6.9%2.6%5.5 $13.55 2/28/20252,480,000 shares $42.53 million +9.7%2.4%5.2 $17.15 2/15/20252,260,000 shares $40.45 million +10.8%2.2%5.1 $17.90 1/31/20252,040,000 shares $41.09 million +9.7%N/A4.5 $20.14 1/15/20251,860,000 shares $31.81 million +3.3%N/A4.4 $17.10 12/31/20241,800,000 shares $35.64 million +34.3%N/A4.7 $19.80 12/15/20241,340,000 shares $15.76 million -5.6%N/A4 $11.76 11/30/20241,420,000 shares $16.60 million -15.5%N/A7.1 $11.69 11/15/20241,680,000 shares $16.87 million +20.9%N/A9 $10.04 10/31/20241,390,000 shares $11.65 million +11.2%N/A9.1 $8.38 10/15/20241,250,000 shares $12.03 million +34.3%N/A7.9 $9.62 9/30/2024931,100 shares $7.61 million -7.8%N/A5.3 $8.17 9/15/20241,010,000 shares $6.28 million +20.5%N/A6.4 $6.22 8/31/2024838,200 shares $5.65 million +9.1%N/A5.3 $6.74 8/15/2024768,300 shares $4.92 million +15.7%N/A4.5 $6.40 7/31/2024663,800 shares $4.49 million +77.8%N/A3.5 $6.77 7/15/2024373,300 shares $2.86 million -18.9%N/A1.7 $7.65 6/30/2024460,500 shares $3.14 million -2.2%N/A1.8 $6.81 6/15/2024470,900 shares $3.43 million -6.0%N/A0.2 $7.28 5/31/2024500,800 shares $3.73 million -36.0%N/A0.2 $7.44 5/15/2024781,900 shares $5.63 million -12.8%N/A0.4 $7.20 4/30/2024896,400 shares $5.92 million +25.2%N/A0.4 $6.60 4/15/2024716,100 shares $3.70 million -69.4%N/A0.3 $5.17 3/31/20242,340,000 shares $11.72 million +190.1%N/A1.1 $5.01 3/15/2024806,500 shares $1.96 million +59.2%N/A0.5 $2.43 2/29/2024506,600 shares $995.47 thousand -6.8%N/A1.2 $1.97 2/15/2024543,500 shares $1.10 million -9.7%N/A2.7 $2.03 1/31/2024601,900 shares $1.06 million +23.0%N/A3.2 $1.76 1/15/2024489,400 shares $954.33 thousand -22.8%N/A2.5 $1.95 12/31/2023633,600 shares $1.39 million -17.8%N/A4.2 $2.20 12/15/2023771,200 shares $825.18 thousand +16.4%N/A2.7 $1.07 11/30/2023662,600 shares $901.14 thousand -9.7%N/A4.6 $1.36 11/15/2023734,100 shares $946.99 thousand +5.1%N/A5.1 $1.29 10/31/2023698,600 shares $852.29 thousand +2.3%N/A2.6 $1.22 10/15/2023683,200 shares $840.34 thousand -22.0%N/A1.5 $1.23 9/30/2023876,300 shares $1.08 million -6.9%N/A1.7 $1.23 9/15/2023941,200 shares $1.34 million -15.2%N/A1.8 $1.42 8/31/20231,110,000 shares $1.79 million -51.5%N/A2.1 $1.61 8/15/20232,290,000 shares $2.91 million +76.2%N/A4.6 $1.27 7/31/20231,300,000 shares $5.20 million +107.4%N/A3.3 $4.00 7/15/2023626,800 shares $3.01 million +52.1%N/A3.2 $4.80 6/30/2023412,000 shares $1.61 million -9.8%N/A2.9 $3.91 6/15/2023456,600 shares $1.68 million +5.9%N/A3.8 $3.68 5/31/2023431,100 shares $1.46 million -6.0%N/A3.7 $3.38 5/15/2023458,400 shares $1.70 million -14.8%N/A3.7 $3.70 4/30/2023537,900 shares $1.59 million +29.0%N/A3.7 $2.95 4/15/2023416,900 shares $1.43 million +13.4%N/A3.1 $3.44 3/31/2023367,500 shares $1.21 million +7.8%N/A2.5 $3.29 3/15/2023341,000 shares $1.06 million -54.2%N/A2.3 $3.12 2/28/2023745,100 shares $2.46 million +12.9%N/A4.5 $3.30 2/15/2023659,900 shares $2.29 million +45.3%N/A4.5 $3.47 1/31/2023454,200 shares $1.50 million +7.5%N/A3.3 $3.30 1/15/2023422,700 shares $1.39 million +2.5%N/A3.7 $3.28 12/30/2022412,400 shares $1.20 million -27.6%N/A3.8 $2.91 12/15/2022569,800 shares $1.78 million +10.9%N/A5.7 $3.13 11/30/2022513,700 shares $1.90 million -2.1%N/A6.5 $3.70 11/15/2022524,800 shares $1.72 million -2.6%N/A8 $3.27 10/31/2022538,600 shares $1.57 million -4.2%N/A8.7 $2.91 10/15/2022561,900 shares $1.75 million +8.9%N/A8.4 $3.11 9/30/2022516,000 shares $1.31 million +3.5%N/A7.4 $2.55 9/15/2022498,800 shares $1.59 million -0.6%N/A6.9 $3.19 8/31/2022501,700 shares $1.49 million +2.0%N/A6.7 $2.96 8/15/2022491,900 shares $1.56 million +0.2%N/A6.6 $3.17 7/31/2022490,700 shares $1.64 million -4.8%N/A6.4 $3.34 7/15/2022515,600 shares $1.49 million -13.6%N/A7.3 $2.89 6/30/2022596,400 shares $1.32 million -7.2%N/A8.4 $2.22 6/15/2022642,300 shares $1.52 million -0.1%N/A9.3 $2.37 5/31/2022643,000 shares $2.26 million -26.1%N/A8.8 $3.51 5/15/2022869,500 shares $3.07 million -5.2%N/A11.9 $3.53 4/30/2022917,500 shares $3.37 million -11.8%N/A13.3 $3.67 4/15/20221,040,000 shares $4.47 million -2.8%N/A13.8 $4.30 3/31/20221,070,000 shares $4.52 million -7.0%N/A14.2 $4.22 3/15/20221,150,000 shares $5.03 million -0.9%N/A11.5 $4.37 2/28/20221,160,000 shares $4.51 million -2.5%N/A6.2 $3.89 2/15/20221,190,000 shares $4.84 million -0.8%N/A5.9 $4.07 1/31/20221,200,000 shares $4.85 million +2.6%N/A5.5 $4.04 1/15/20221,170,000 shares $5.42 million +2.6%N/A5.3 $4.63 12/31/20211,140,000 shares $5.47 million +1.8%N/A5.1 $4.80 12/15/20211,120,000 shares $5.57 million -8.2%N/A5.2 $4.97 11/30/20211,220,000 shares $7.38 million +1.7%N/A8.1 $6.05 11/15/20211,200,000 shares $8.51 million -1.6%N/A7.9 $7.09 10/29/20211,220,000 shares $7.38 million +9.9%N/A9 $6.05 10/15/20211,110,000 shares $6.30 million -10.5%N/A8.4 $5.68 9/30/20211,240,000 shares $7.45 million No ChangeN/A9.7 $6.01 9/15/20211,240,000 shares $7.87 million -23.9%N/A9.5 $6.35 8/31/20211,630,000 shares $10.64 million +5.8%N/A10.6 $6.53 8/13/20211,540,000 shares $11.58 million No ChangeN/A11.9 $7.52 7/30/20211,540,000 shares $10.78 million +4.8%N/A10.9 $7.00 7/15/20211,470,000 shares $10.88 million +2.8%N/A6.7 $7.40 6/30/20211,430,000 shares $10.70 million +8.3%N/A6.4 $7.48 6/15/20211,320,000 shares $10.86 million -0.8%N/A5.6 $8.23 5/28/20211,330,000 shares $10.28 million -2.2%N/A6.1 $7.73 5/14/20211,360,000 shares $9.15 million -2.9%N/A5.8 $6.73 4/30/20211,400,000 shares $10.11 million +6.1%N/A4.5 $7.22 4/15/20211,320,000 shares $11.48 million +10.0%N/A4.8 $8.70 3/31/20211,200,000 shares $9.91 million -18.9%N/A2 $8.26 3/15/20211,480,000 shares $13.81 million -21.3%N/A2 $9.33 2/26/20211,880,000 shares $18.05 million -33.3%N/A2.5 $9.60 2/12/20212,820,000 shares $30.88 million -10.2%N/A3.4 $10.95 1/29/20213,140,000 shares $28.92 million -15.8%N/A4 $9.21 1/15/20213,730,000 shares $36.67 million +11.0%N/A4.8 $9.83 12/31/20203,360,000 shares $28.66 million +8.0%N/A4.4 $8.53 12/15/20203,110,000 shares $52.53 million -0.3%N/A5 $16.89 11/30/20203,120,000 shares $46.58 million -4.9%N/A5.7 $14.93 11/15/20203,280,000 shares $38.97 million +0.9%N/A5.2 $11.88 10/30/20203,250,000 shares $35.43 million +8.7%N/A3 $10.90 10/15/20202,990,000 shares $35.46 million -4.8%N/A2.5 $11.86 9/30/20203,140,000 shares $58.36 million +18.1%N/A2.7 $18.59 MESO Short Interest - Frequently Asked Questions What is Mesoblast's current short interest? Short interest is the volume of Mesoblast shares that have been sold short but have not yet been closed out or covered. As of August 31st, investors have sold 2,420,000 shares of MESO short. 2.33% of Mesoblast's shares are currently sold short. Learn More on Mesoblast's current short interest. What is a good short interest ratio for Mesoblast? The short interest ratio, also known as the "days to cover ratio", is calculated by dividing the number of shares of a stock sold short divided by its average trading volume. A short interest ratio ranging between 1 and 4 generally indicates strong positive sentiment about a stock and a lack of short sellers. A short interest ratio of 10 or greater indicates strong pessimism about a stock. MESO shares currently have a short interest ratio of 10.0. Learn More on Mesoblast's short interest ratio. Which institutional investors are shorting Mesoblast? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Mesoblast: Marex Group plc, Group One Trading LLC, and Simplex Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Mesoblast? Companies that have a short interest as a percentage of float below 10% indicates positive investor sentiment and few short sellers. Stocks with a short interest percentage above 10% is considered high, suggesting some investors are pessimistic about the stock. Companies with a short interest percentage of 20% or more indicates widespread negative sentiment. 2.33% of Mesoblast's floating shares are currently sold short. Is Mesoblast's short interest increasing or decreasing? Mesoblast saw a increase in short interest during the month of August. As of August 31st, there was short interest totaling 2,420,000 shares, an increase of 1.7% from the previous total of 2,380,000 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment. How does Mesoblast's short interest compare to its competitors? 2.33% of Mesoblast's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Mesoblast: Grifols, S.A. (0.96%), Rhythm Pharmaceuticals, Inc. (7.97%), Abivax SA Sponsored ADR (2.43%), Cytokinetics, Incorporated (11.82%), Legend Biotech Corporation Sponsored ADR (4.26%), Axsome Therapeutics, Inc. (9.05%), Nuvalent, Inc. (12.29%), Avidity Biosciences, Inc. (14.20%), Merus N.V. (5.99%), CRISPR Therapeutics AG (25.36%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($73.23 billion), Invesco QQQ ($29.52 billion), iShares Russell 2000 ETF ($20.82 billion), iShares 20+ Year Treasury Bond ETF ($10.76 billion), Palo Alto Networks, Inc. ($9.37 billion), Strategy Inc ($7.58 billion), Invesco S&P 500 Equal Weight ETF ($6.78 billion), SPDR S&P Biotech ETF ($6.72 billion), AppLovin Corporation ($6.37 billion), and iShares iBoxx $ Investment Grade Corporate Bond ETF ($6.29 billion). View all of the most shorted stocks. What does it mean to sell short Mesoblast stock? Short selling MESO is an investing strategy that aims to generate trading profit from Mesoblast as its price is falling. MESO shares are trading down $0.38 today. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit. How does a short squeeze work against Mesoblast? A short squeeze for Mesoblast occurs when it has a large amount of short interest and its stock appreciates in price. This forces short sellers to cover their short interest positions by buying actual shares of MESO, which in turn drives the price of the stock up even further. How often is Mesoblast's short interest reported? Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including MESO, twice per month. The most recent reporting period available is August, 31 2025. More Short Interest Resources from MarketBeat Related Companies GRFS Short Interest RYTM Short Interest ABVX Short Interest CYTK Short Interest LEGN Short Interest AXSM Short Interest NUVL Short Interest RNA Short Interest MRUS Short Interest CRSP Short Interest Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:MESO) was last updated on 9/17/2025 by MarketBeat.com Staff From Our PartnersHe Called Nvidia at $1.10. Now, He Says THIS Stock Will…The original Magnificent Seven returned 16,894%—turning $7K into $1.18 million. Now, the man who called Nvi...The Oxford Club | SponsoredINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredStrange crypto pattern discovered by 40-person research teamSomething unusual is happening inside a 40-person crypto research firm. 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