Mesoblast (MESO) Short Interest Ratio & Short Volume $15.00 +0.45 (+3.09%) Closing price 09/9/2025 04:00 PM EasternExtended Trading$15.76 +0.77 (+5.10%) As of 09/9/2025 07:54 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 2.38 million shares. This marks a 0.00% change in short interest from the previous month. The short interest ratio (days to cover) is 10.8, indicating that it would take 10.8 days of the average trading volume of 204,906 shares to cover all short positions.Current Short Interest2,380,000 sharesPrevious Short Interest2,380,000 sharesChange Vs. Previous MonthNo ChangeDollar Volume Sold Short$38.68 millionShort Interest Ratio10.8 Days to CoverLast Record DateAugust 15, 2025Outstanding Shares128,000,000 sharesPercentage of Shares Shorted1.86%Today's Trading Volume296,339 sharesAverage Trading Volume204,906 sharesToday's Volume Vs. Average145% 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. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. 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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 8/15/20252,380,000 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 3/31/20252,490,000 shares $31.08 million -6.0%2.4%7.2 $12.48 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. 3/15/20252,650,000 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 9/15/20202,660,000 shares $47.08 million +21.5%N/A2.5 $17.70 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 15th, traders have sold 2,380,000 shares of MESO 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 11.0. 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. How does Mesoblast's short interest compare to its competitors? Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Mesoblast: Grifols, S.A. (0.99%), Rhythm Pharmaceuticals, Inc. (7.03%), Legend Biotech Corporation Sponsored ADR (4.11%), Abivax SA Sponsored ADR (1.71%), Avidity Biosciences, Inc. (12.18%), Cytokinetics, Incorporated (13.10%), Axsome Therapeutics, Inc. (7.45%), Nuvalent, Inc. (12.40%), TG Therapeutics, Inc. (14.84%), Merus N.V. (5.87%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Lucid Group, Inc. ($8.00 billion), Spotify Technology ($5.48 billion), AppLovin Corporation ($5.11 billion), Reddit Inc. ($5.02 billion), Coinbase Global, Inc. ($3.99 billion), Charter Communications, Inc. ($3.89 billion), Live Nation Entertainment, Inc. ($3.18 billion), Seagate Technology Holdings PLC ($2.59 billion), ResMed Inc. ($2.55 billion), and Rocket Lab Corporation ($2.52 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 up $0.45 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 increases 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, 15 2025. 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