Marinus Pharmaceuticals (MRNS) Short Interest Ratio & Short Volume $0.55 0.00 (-0.16%) As of 02/11/2025 Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartEarningsFDA EventsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Marinus Pharmaceuticals Short Interest DataMarinus Pharmaceuticals (MRNS) has a short interest of 2.18 million shares. This marks a -6.03% decrease in short interest from the previous month. The short interest ratio (days to cover) is 1.2, indicating that it would take 1.2 days of the average trading volume of 1.86 million shares to cover all short positions.Current Short Interest2,180,000 sharesPrevious Short Interest2,320,000 sharesChange Vs. Previous Month-6.03%Dollar Volume Sold Short$1.18 millionShort Interest Ratio1.2 Days to CoverLast Record DateJanuary 31, 2025Outstanding Shares55,220,000 sharesPercentage of Shares Shorted3.95%Today's Trading Volume260 sharesAverage Trading Volume1,857,582 sharesToday's Volume Vs. Average0% Short Selling Marinus Pharmaceuticals? Sign up to receive the latest short interest report for Marinus Pharmaceuticals and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartMRNS Short Interest Over TimeMRNS Days to Cover Over TimeMRNS Percentage of Float Shorted Over Time Marinus Pharmaceuticals Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 1/31/20252,180,000 shares $1.18 million -6.0%N/A1.2 $0.54 1/15/20252,320,000 shares $1.25 million -35.9%N/A0.7 $0.54 12/31/20243,620,000 shares $1.94 million -16.0%N/A1.1 $0.54 12/15/20244,310,000 shares $1.13 million -1.6%N/A1.6 $0.26 11/30/20244,380,000 shares $1.42 million -4.6%N/A1.7 $0.32 11/15/20244,590,000 shares $1.39 million -18.9%N/A1.8 $0.30 10/31/20245,660,000 shares $1.71 million +62.2%N/A2.4 $0.30 10/15/20243,490,000 shares $6.07 million +8.4%N/A6.7 $1.74 9/30/20243,220,000 shares $5.67 million +11.0%N/A5.8 $1.76 9/15/20242,900,000 shares $4.35 million +5.8%N/A4.2 $1.50 Get the Latest News and Ratings for MRNS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Marinus Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 8/31/20242,740,000 shares $3.84 million +2.2%N/A4 $1.40 8/15/20242,680,000 shares $3.27 million +6.8%N/A3.3 $1.22 7/31/20242,510,000 shares $3.51 million -7.0%N/A2.5 $1.40 7/15/20242,700,000 shares $3.81 million -42.4%N/A2.2 $1.41 6/30/20244,690,000 shares $5.49 million +1.1%N/A2 $1.17 6/15/20244,640,000 shares $6.80 million -9.7%N/A2.1 $1.47 5/31/20245,140,000 shares $7.30 million +5.1%N/A2.4 $1.42 5/15/20244,890,000 shares $6.50 million -2.2%N/A2.4 $1.33 4/30/20245,000,000 shares $7.05 million +10.6%N/A2.7 $1.41 4/15/20244,520,000 shares $5.88 million +30.3%N/A2.7 $1.30 3/31/20243,470,000 shares $31.37 million -2.8%N/A7.7 $9.04 3/15/20243,570,000 shares $33.52 million +4.1%N/A8.2 $9.39 2/29/20243,430,000 shares $32.59 million -3.9%N/A7.9 $9.50 2/15/20243,570,000 shares $35.70 million -1.4%N/A9.1 $10.00 1/31/20243,620,000 shares $35.26 million -6.0%N/A8.8 $9.74 1/15/20243,850,000 shares $37.73 million -12.3%N/A8.8 $9.80 12/31/20234,390,000 shares $47.72 million +12.0%N/A10.1 $10.87 12/15/20233,920,000 shares $33.67 million -1.0%N/A8.7 $8.59 11/30/20233,960,000 shares $26.65 million -13.0%N/A8 $6.73 11/15/20234,550,000 shares $28.03 million +2.7%N/A8.1 $6.16 10/31/20234,430,000 shares $30.74 million +15.1%N/A6.6 $6.94 10/15/20233,850,000 shares $26.49 million +6.1%N/A5.8 $6.88 9/30/20233,630,000 shares $29.22 million -4.2%N/A5.4 $8.05 9/15/20233,790,000 shares $23.12 million +5.6%N/A5.3 $6.10 8/31/20233,590,000 shares $25.52 million +7.5%N/A4.3 $7.11 8/15/20233,340,000 shares $20.47 million +14.0%N/A4 $6.13 7/31/20232,930,000 shares $31.18 million -9.3%N/A3.5 $10.64 7/15/20233,230,000 shares $31.85 million +17.0%N/A3.7 $9.86 6/30/20232,760,000 shares $29.97 million +54.2%N/A3 $10.86 6/15/20231,790,000 shares $17.54 million +17.0%N/A2.1 $9.80This Signal Only Flashes Once Every 4 Years – And It Just Triggered (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 Bitcoin 5/31/20231,530,000 shares $10.88 million -16.4%N/A2.2 $7.11 5/15/20231,830,000 shares $15.77 million +19.6%N/A2.9 $8.62 4/30/20231,530,000 shares $13.92 million -19.9%N/A2.7 $9.10 4/15/20231,910,000 shares $14.11 million +7.3%N/A3.8 $7.39 3/31/20231,780,000 shares $12.28 million +17.1%N/A3.8 $6.90 3/15/20231,520,000 shares $10.06 million +7.0%N/A3.5 $6.62 2/28/20231,420,000 shares $9.80 million +6.8%N/A3.6 $6.90 2/15/20231,330,000 shares $9.02 million +2.3%N/A3.6 $6.78 1/31/20231,300,000 shares $8.26 million -7.8%N/A3.1 $6.35 1/15/20231,410,000 shares $6.97 million +3.7%N/A3.8 $4.94 12/30/20221,360,000 shares $5.41 million +5.4%N/A4.2 $3.98 12/15/20221,290,000 shares $5.29 million +1.6%N/A4 $4.10 11/30/20221,270,000 shares $6.08 million -1.6%N/A4 $4.79 11/15/20221,290,000 shares $6.18 million -12.2%N/A4.6 $4.79 10/31/20221,470,000 shares $8.45 million +6.5%4.5%5.5 $5.75 10/15/20221,380,000 shares $7.40 million -5.5%4.3%6.3 $5.36 9/30/20221,460,000 shares $9.71 million +29.2%4.5%7 $6.65 9/15/20221,130,000 shares $7.55 million +3.7%3.5%4 $6.68 8/31/20221,090,000 shares $7.59 million +17.6%3.4%3.7 $6.96 8/15/2022927,200 shares $5.27 million -7.3%2.9%2.8 $5.68 7/31/20221,000,000 shares $5.57 million No Change3.1%2.9 $5.57 7/15/20221,000,000 shares $5.71 million -1.0%3.1%2.9 $5.71 6/30/20221,010,000 shares $4.89 million -58.3%3.1%3 $4.84 6/15/20222,420,000 shares $10.45 million +30.1%7.5%7 $4.32 5/31/20221,860,000 shares $9.02 million +13.4%5.8%4.6 $4.85 5/15/20221,640,000 shares $9.28 million +18.0%5.1%4.2 $5.66 4/30/20221,390,000 shares $9.20 million +8.6%4.3%3.7 $6.62 4/15/20221,280,000 shares $9.98 million -9.9%4.0%3.5 $7.80 3/31/20221,420,000 shares $13.28 million -6.6%4.4%4.1 $9.35 3/15/20221,520,000 shares $11.10 million +20.6%4.7%4.7 $7.30 2/28/20221,260,000 shares $9.85 million +2.4%3.9%7.5 $7.82 2/15/20221,230,000 shares $14.76 million +17.1%3.8%7.8 $12.00 1/31/20221,050,000 shares $10.71 million No Change3.5%7.4 $10.20 1/15/20221,050,000 shares $11.62 million +1.9%3.2%7.6 $11.07 12/31/20211,030,000 shares $12.24 million -7.2%3.2%7.2 $11.88 12/15/20211,110,000 shares $11.70 million -1.8%3.4%7.1 $10.54 11/30/20211,130,000 shares $12.55 million +1.8%3.5%6.6 $11.11 11/15/20211,110,000 shares $13.91 million -16.5%3.4%6.2 $12.53 10/29/20211,330,000 shares $15.30 million +3.9%4.1%6.2 $11.50 10/15/20211,280,000 shares $14.67 million -65.2%4.0%5.9 $11.46 9/30/20213,680,000 shares $41.88 million +1.7%11.4%17.3 $11.38 9/15/20213,620,000 shares $41.01 million -3.7%11.2%15.5 $11.33 8/31/20213,760,000 shares $46.47 million -1.1%11.7%16.6 $12.36 8/13/20213,800,000 shares $46.40 million -0.5%11.8%17.2 $12.21 7/30/20213,820,000 shares $56.15 million -0.5%11.0%18 $14.70 7/15/20213,840,000 shares $61.82 million -4.5%11.1%18.1 $16.10 6/30/20214,020,000 shares $72.12 million -0.7%11.6%18 $17.94 6/15/20214,050,000 shares $71.85 million -6.9%11.7%19.5 $17.74 5/28/20214,350,000 shares $73.17 million -5.4%12.5%18.2 $16.82 5/14/20214,600,000 shares $70.20 million +2.5%13.3%16.5 $15.26This Signal Only Flashes Once Every 4 Years – And It Just Triggered (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 Bitcoin 4/30/20214,490,000 shares $66.68 million +0.7%12.9%15.7 $14.85 4/15/20214,460,000 shares $66.23 million +0.5%12.8%14.6 $14.85 3/31/20214,440,000 shares $63.54 million +5.2%13.1%13.3 $14.31 3/15/20214,220,000 shares $67.86 million -0.2%12.5%10.9 $16.08 2/26/20214,230,000 shares $63.83 million +1.2%13.1%9 $15.09 2/12/20214,180,000 shares $62.66 million -2.1%12.9%8.4 $14.99 1/29/20214,270,000 shares $53.50 million -1.8%13.1%8.1 $12.53 1/15/20214,350,000 shares $55.38 million -17.6%13.3%8.1 $12.73 12/31/20205,280,000 shares $65.10 million +6.7%16.4%9.3 $12.33 12/15/20204,950,000 shares $64.89 million No Change15.4%7.1 $13.11 11/30/20204,950,000 shares $72.47 million +1.0%17.9%3.4 $14.64 11/15/20204,900,000 shares $73.35 million +6.8%17.7%3.6 $14.97 10/30/20204,590,000 shares $61.32 million +19.2%16.6%3.4 $13.36 10/15/20203,850,000 shares $55.79 million +4.6%14.0%2.8 $14.49 9/30/20203,680,000 shares $47.29 million -75.7%12.7%2.7 $12.85 9/15/202015,120,000 shares $193.54 million +2.2%53.6%12.4 $12.80 8/31/202014,800,000 shares $114.85 million +29.8%N/A8 $7.76 8/14/202011,400,000 shares $81.62 million +6.8%N/A6.7 $7.16 7/31/202010,670,000 shares $71.70 million +28.9%N/A6.7 $6.72 7/15/20208,280,000 shares $66.90 million +8.7%N/A6 $8.08 MRNS Short Interest - Frequently Asked Questions What is Marinus Pharmaceuticals' current short interest? Short interest is the volume of Marinus Pharmaceuticals shares that have been sold short but have not yet been closed out or covered. As of January 31st, investors have sold 2,180,000 shares of MRNS short. Learn More on Marinus Pharmaceuticals' current short interest. What is a good short interest ratio for Marinus Pharmaceuticals? 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. MRNS shares currently have a short interest ratio of 1.0. Learn More on Marinus Pharmaceuticals's short interest ratio. Is Marinus Pharmaceuticals' short interest increasing or decreasing? Marinus Pharmaceuticals saw a decrease in short interest in January. As of January 31st, there was short interest totaling 2,180,000 shares, a decrease of 6.0% from the previous total of 2,320,000 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 Marinus Pharmaceuticals' short interest compare to its competitors? Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Marinus Pharmaceuticals: Upexi, Inc. (1.63%), Protalix BioTherapeutics, Inc. (1.72%), Genelux Corporation (6.38%), Protara Therapeutics, Inc. (6.23%), Atossa Genetics Inc. (6.22%), Procaps Group S.A. (0.12%), C4 Therapeutics, Inc. (9.84%), ANIXA BIOSCIENCES INC (1.31%), Milestone Pharmaceuticals Inc. (4.67%), Seres Therapeutics, Inc. (10.55%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: AppLovin Corporation ($5.21 billion), Charter Communications, Inc. ($4.07 billion), Reddit Inc. ($3.33 billion), The Kroger Co. ($2.67 billion), Cencora, Inc. ($2.29 billion), Hims & Hers Health, Inc. ($2.17 billion), SoFi Technologies, Inc. ($1.99 billion), Live Nation Entertainment, Inc. ($1.87 billion), Rivian Automotive, Inc. ($1.76 billion), and Moderna, Inc. ($1.60 billion). View all of the most shorted stocks. What does it mean to sell short Marinus Pharmaceuticals stock? Short selling MRNS is an investing strategy that aims to generate trading profit from Marinus Pharmaceuticals as its price is falling. MRNS shares are trading down $0.00 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 Marinus Pharmaceuticals? A short squeeze for Marinus Pharmaceuticals 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 MRNS, which in turn drives the price of the stock up even further. How often is Marinus Pharmaceuticals' 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 MRNS, twice per month. The most recent reporting period available is January, 31 2025. More Short Interest Resources from MarketBeat Related Companies UPXI Short Interest PLX Short Interest GNLX Short Interest TARA Short Interest ATOS Short Interest PROC Short Interest CCCC Short Interest ANIX Short Interest MIST Short Interest MCRB 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:MRNS) was last updated on 7/10/2025 by MarketBeat.com Staff From Our PartnersMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredA grave, grave error.I thought what happened 25 years ago was a once- in-a-lifetime event… but how wrong I was. Because here we...Porter & Company | SponsoredGoogle did what!?!?A new technology has sparked a modern-day gold rush in Silicon Valley. OpenAI’s Sam Altman invested $375M. 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