Matinas Biopharma (MTNB) Short Interest Ratio & Short Volume $1.82 -0.22 (-10.78%) Closing price 04:00 PM EasternExtended Trading$1.83 +0.01 (+0.55%) 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 Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Matinas Biopharma Short Interest DataMatinas Biopharma (MTNB) has a short interest of 48,000 shares, representing 1.05% of the float (the number of shares available for trading by the public). This marks a -42.24% decrease in short interest from the previous month. The short interest ratio (days to cover) is 0.2, indicating that it would take 0.2 days of the average trading volume of 437,608 shares to cover all short positions.Current Short Interest48,000 sharesPrevious Short Interest83,100 sharesChange Vs. Previous Month-42.24%Dollar Volume Sold Short$41.52 thousandShort Interest Ratio0.2 Days to CoverLast Record DateJuly 31, 2025Outstanding Shares5,087,000 sharesFloat Size4,560,000 sharesShort Percent of Float1.05%Today's Trading Volume44,875 sharesAverage Trading Volume437,608 sharesToday's Volume Vs. Average10% Short Selling Matinas Biopharma? Sign up to receive the latest short interest report for Matinas Biopharma 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 ChartMTNB Short Interest Over TimeMTNB Days to Cover Over TimeMTNB Percentage of Float Shorted Over Time Matinas Biopharma Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 7/31/202548,000 shares $41.52 thousand -42.2%1.1%0.2 $0.87 7/15/202583,100 shares $82.30 thousand -41.8%1.8%0.3 $0.99 6/30/2025142,800 shares $127.09 thousand +81.2%3.1%0.6 $0.89 6/15/202578,800 shares $66.19 thousand +26.3%1.7%0.3 $0.84 5/31/202562,400 shares $50.67 thousand -29.6%1.4%0.4 $0.81 5/15/202588,600 shares $68.22 thousand +9.4%1.9%1.2 $0.77 4/30/202581,000 shares $47.87 thousand -58.3%1.8%0.6 $0.59 4/15/2025194,400 shares $112.75 thousand -2.5%4.3%1.4 $0.58 3/14/2025232,400 shares $127.59 thousand -20.4%5.1%0.5 $0.55 2/14/2025348,200 shares $212.16 thousand +17.0%7.3%0.8 $0.61 Get the Latest News and Ratings for MTNB and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Matinas Biopharma and its competitors with MarketBeat's FREE daily newsletter. 1/31/2025297,600 shares $172.61 thousand -56.4%6.3%0.6 $0.58 1/15/2025683,100 shares $399.96 thousand +518.2%14.5%1.3 $0.59 10/31/202432,400 shares $0.00 -59.7%0.7%0.2 $0.00 10/15/202480,400 shares $0.00 +28.2%1.6%2 $0.00 9/30/202462,700 shares $0.00 -20.3%1.3%1.6 $0.00 9/15/202478,700 shares $0.00 +36.4%1.6%2.4 $0.00 8/31/202457,700 shares $0.00 -95.6%1.2%1.9 $0.00 8/15/20241,310,000 shares $0.00 -4.4%N/A1.2 $0.00 7/31/20241,370,000 shares $0.00 -27.9%N/A1.6 $0.00 7/15/20241,900,000 shares $0.00 -15.2%N/A2 $0.00 6/30/20242,240,000 shares $0.00 +6.7%N/A2.5 $0.00 6/15/20242,100,000 shares $0.00 -11.0%N/A1.3 $0.00 5/31/20242,360,000 shares $0.00 No ChangeN/A1.5 $0.00 5/15/20242,360,000 shares $0.00 -27.2%N/A1.4 $0.00 4/30/20243,240,000 shares $0.00 +1.6%N/A2 $0.00 4/15/20243,190,000 shares $0.00 -2.5%N/A2.1 $0.00 3/31/20243,270,000 shares $0.00 +147.7%N/A2.2 $0.00 3/15/20241,320,000 shares $0.00 -10.2%N/A1 $0.00 2/29/20241,470,000 shares $0.00 +22.5%N/A1.5 $0.00 2/15/20241,200,000 shares $0.00 -15.5%N/A1.2 $0.00 1/31/20241,420,000 shares $0.00 +8.4%N/A1 $0.00 1/15/20241,310,000 shares $0.00 -36.4%N/A0.8 $0.00 12/31/20232,060,000 shares $0.00 -10.0%N/A0.2 $0.00 12/15/20232,290,000 shares $0.00 -34.4%N/A0.2 $0.00 11/30/20233,490,000 shares $0.00 -21.6%N/A0.4 $0.00 11/15/20234,450,000 shares $0.00 -2.8%N/A0.5 $0.00 10/31/20234,580,000 shares $0.00 -23.9%N/A0.5 $0.00 10/15/20236,020,000 shares $0.00 +3,030.5%N/A0.7 $0.00 9/30/2023192,300 shares $0.00 -31.0%N/A0.2 $0.00 9/15/2023278,500 shares $0.00 -60.9%N/A0.4 $0.00BONUS GUIDE - Ben Stein Prepares For the Next Financial Crisis (Ad)With inflation high, debt soaring, and global tensions rising, a financial storm may be brewing. Economist Ben Stein—drawing on insights from his own experience and his father’s time advising two U.S. presidents—just released a new report on how to help protect your retirement from the next major crisis.Claim your free copy of “How to Survive the Next Financial Crisis” today 8/31/2023711,500 shares $0.00 -38.1%N/A1.1 $0.00 8/15/20231,150,000 shares $0.00 -24.8%N/A1.7 $0.00 7/31/20231,530,000 shares $0.00 +11.7%N/A3.2 $0.00 7/15/20231,370,000 shares $0.00 -14.4%N/A2.8 $0.00 6/30/20231,600,000 shares $576 thousand +4.6%N/A2.9 $0.36 6/15/20231,530,000 shares $0.00 +25.4%N/A3 $0.00 5/31/20231,220,000 shares $0.00 -12.9%N/A2.5 $0.00 5/15/20231,400,000 shares $0.00 -14.1%N/A3.2 $0.00 4/30/20231,630,000 shares $0.00 +48.2%N/A4.4 $0.00 4/15/20231,100,000 shares $0.00 -9.8%N/A3 $0.00 3/31/20231,220,000 shares $0.00 +8.9%N/A4.4 $0.00 3/15/20231,120,000 shares $0.00 -26.8%N/A3.6 $0.00 2/28/20231,530,000 shares $0.00 +10.1%N/A3.9 $0.00 2/15/20231,390,000 shares $0.00 -6.1%N/A3.5 $0.00 1/31/20231,480,000 shares $0.00 +5.0%N/A3.8 $0.00 1/15/20231,410,000 shares $0.00 -2.1%N/A3.2 $0.00 12/30/20221,440,000 shares $720 thousand -23.4%N/A3.4 $0.50 12/15/20221,880,000 shares $0.00 +20.5%N/A4.7 $0.00 11/30/20221,560,000 shares $0.00 -2.5%N/A4.7 $0.00 11/15/20221,600,000 shares $0.00 -3.0%N/A5.8 $0.00 10/31/20221,650,000 shares $1.29 million +2.5%N/A5.4 $0.78 10/15/20221,610,000 shares $0.00 -6.4%N/A5.1 $0.00 9/30/20221,720,000 shares $0.00 +1.2%N/A5.8 $0.00 9/15/20221,700,000 shares $0.00 +6.3%N/A5 $0.00 8/31/20221,600,000 shares $1.14 million +1.9%N/A4.3 $0.71 8/15/20221,570,000 shares $0.00 -5.4%N/A4.1 $0.00 7/31/20221,660,000 shares $0.00 -7.3%N/A4.1 $0.00 7/15/20221,790,000 shares $0.00 -16.7%N/A4.1 $0.00 6/30/20222,150,000 shares $0.00 -16.7%N/A4 $0.00 6/15/20222,580,000 shares $0.00 -1.5%N/A4.5 $0.00 5/31/20222,620,000 shares $1.87 million -11.5%N/A4.2 $0.72 5/15/20222,960,000 shares $0.00 +7.3%N/A4.4 $0.00 4/30/20222,760,000 shares $0.00 -9.2%N/A4.2 $0.00 4/15/20223,040,000 shares $0.00 +9.4%N/A4 $0.00 3/31/20222,780,000 shares $2.24 million +4.9%N/A4 $0.80 3/15/20222,650,000 shares $0.00 -4.7%N/A3.7 $0.00 2/28/20222,780,000 shares $1.60 million -8.3%N/A3.3 $0.57 2/15/20223,030,000 shares $0.00 -10.1%N/A3.3 $0.00 1/31/20223,370,000 shares $2.53 million -5.9%N/A3 $0.75 1/15/20223,580,000 shares $0.00 -2.5%N/A3 $0.00 12/31/20213,670,000 shares $3.71 million +11.2%N/A2.9 $1.01 12/15/20213,300,000 shares $0.00 +13.0%N/A1.9 $0.00 11/30/20212,920,000 shares $0.00 +7.0%N/A1.2 $0.00 11/15/20212,730,000 shares $0.00 -10.5%N/A1.1 $0.00 10/29/20213,050,000 shares $3.39 million +4.1%N/A1.3 $1.11 10/15/20212,930,000 shares $0.00 -1.4%N/A1.3 $0.00 9/30/20212,970,000 shares $0.00 -13.9%N/A1.4 $0.00 9/15/20213,450,000 shares $0.00 +14.6%N/A1.9 $0.00 8/31/20213,010,000 shares $0.00 -16.2%N/A2.8 $0.00 8/13/20213,590,000 shares $0.00 +2.0%N/A3.3 $0.00BONUS GUIDE - Ben Stein Prepares For the Next Financial Crisis (Ad)With inflation high, debt soaring, and global tensions rising, a financial storm may be brewing. Economist Ben Stein—drawing on insights from his own experience and his father’s time advising two U.S. presidents—just released a new report on how to help protect your retirement from the next major crisis.Claim your free copy of “How to Survive the Next Financial Crisis” today 7/30/20213,520,000 shares $0.00 -76.6%1.8%3.2 $0.00 7/15/202115,030,000 shares $0.00 -1.7%7.7%13 $0.00 6/30/202115,290,000 shares $0.00 -1.2%8.3%11.9 $0.00 6/15/202115,470,000 shares $0.00 +0.3%8.4%11.6 $0.00 5/28/202115,420,000 shares $0.00 -0.7%8.3%11.9 $0.00 5/14/202115,530,000 shares $0.00 +0.2%N/A10.1 $0.00 4/30/202115,500,000 shares $0.00 +0.9%N/A6.4 $0.00 4/15/202115,370,000 shares $13.22 million -2.9%N/A4.2 $0.86 3/31/202115,830,000 shares $14.41 million +0.3%N/A3.9 $0.91 3/15/202115,790,000 shares $15.95 million +1.7%N/A2.7 $1.01 2/26/202115,520,000 shares $16.30 million -7.8%N/A2.5 $1.05 2/12/202116,830,000 shares $20.87 million +9.1%N/A2.7 $1.24 1/29/202115,430,000 shares $21.14 million -4.7%N/A2.7 $1.37 1/15/202116,190,000 shares $24.12 million +0.3%N/A3.7 $1.49 12/31/202016,140,000 shares $23.73 million -1.7%N/A4 $1.47 12/15/202016,410,000 shares $17.72 million +0.6%N/A8.2 $1.08 11/30/202016,320,000 shares $17.14 million -1.1%N/A8.5 $1.05 11/15/202016,500,000 shares $13.25 million -1.2%N/A10.6 $0.80 10/30/202016,700,000 shares $14.24 million +1.1%N/A9.4 $0.85 10/15/202016,520,000 shares $14.70 million -2.0%N/A7.7 $0.89 9/30/202016,850,000 shares $12.91 million +3.4%N/A6.5 $0.77 9/15/202016,300,000 shares $12.61 million +0.6%N/A6.2 $0.77 8/31/202016,210,000 shares $12.68 million -1.7%N/A6.2 $0.78 MTNB Short Interest - Frequently Asked Questions What is Matinas Biopharma's current short interest? Short interest is the volume of Matinas Biopharma shares that have been sold short but have not yet been closed out or covered. As of July 31st, traders have sold 48,000 shares of MTNB short. 1.05% of Matinas Biopharma's shares are currently sold short. Learn More on Matinas Biopharma's current short interest. What is a good short interest percentage for Matinas Biopharma? 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. 1.05% of Matinas Biopharma's floating shares are currently sold short. Is Matinas Biopharma's short interest increasing or decreasing? Matinas Biopharma saw a drop in short interest in the month of July. As of July 31st, there was short interest totaling 48,000 shares, a drop of 42.2% from the previous total of 83,100 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. What is Matinas Biopharma's float size? Matinas Biopharma currently has issued a total of 5,087,000 shares. Some of Matinas Biopharma's outstanding shares are available for trading, while others are subject to various restrictions. The public float, also referred to as floating shares or "the float", are shares that publicly owned, unrestricted and available to trade on the open market. Matinas Biopharma currently has a public float of 4,560,000 shares. How does Matinas Biopharma's short interest compare to its competitors? 1.05% of Matinas Biopharma's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Matinas Biopharma: Alterity Therapeutics Limited - Sponsored ADR (0.96%), Rani Therapeutics Holdings, Inc. (3.12%), FibroGen, Inc (3.74%), Century Therapeutics, Inc. (3.31%), Aadi Bioscience, Inc. (6.58%), PepGen, Inc. (4.49%), Renovaro Inc. (0.70%), Pluri Inc. (0.77%), X4 Pharmaceuticals, Inc. (26.22%), Acrivon Therapeutics, Inc. (3.14%), 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 ($70.87 billion), Invesco QQQ ($30.12 billion), iShares Russell 2000 ETF ($19.85 billion), iShares 20+ Year Treasury Bond ETF ($10.34 billion), Strategy Inc ($8.98 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($7.61 billion), SPDR S&P Biotech ETF ($6.81 billion), Invesco S&P 500 Equal Weight ETF ($6.14 billion), Palo Alto Networks, Inc. ($5.97 billion), and Super Micro Computer, Inc. ($5.28 billion). View all of the most shorted stocks. What does it mean to sell short Matinas Biopharma stock? Short selling MTNB is an investing strategy that aims to generate trading profit from Matinas Biopharma as its price is falling. MTNB shares are trading down $0.11 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 Matinas Biopharma? A short squeeze for Matinas Biopharma 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 MTNB, which in turn drives the price of the stock up even further. How often is Matinas Biopharma'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 MTNB, twice per month. The most recent reporting period available is July, 31 2025. More Short Interest Resources from MarketBeat Related Companies Alterity Therapeutics Short Interest Rani Therapeutics Short Interest FibroGen Short Interest Century Therapeutics Short Interest Aadi Bioscience Short Interest PepGen Short Interest Renovaro Short Interest Pluri Short Interest X4 Pharmaceuticals Short Interest Acrivon Therapeutics Short Interest Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NYSE:MTNB) was last updated on 8/29/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredBONUS GUIDE - Ben Stein Prepares For the Next Financial CrisisWith inflation high, debt soaring, and global tensions rising, a financial storm may be brewing. 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