REGENXBIO (RGNX) Short Interest Ratio & Short Volume $9.61 +0.20 (+2.13%) As of 04/30/2025 04:00 PM Eastern Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock REGENXBIO Short Interest DataREGENXBIO (RGNX) has a short interest of 5.25 million shares, representing 12.20% of the float (the number of shares available for trading by the public). This marks a 0.57% increase in short interest from the previous month. The short interest ratio (days to cover) is 5.6, indicating that it would take 5.6 days of the average trading volume of 815,810 shares to cover all short positions.Current Short Interest5,250,000 sharesPrevious Short Interest5,220,000 sharesChange Vs. Previous Month+0.57%Dollar Volume Sold Short$34.39 millionShort Interest Ratio5.6 Days to CoverLast Record DateApril 15, 2025Outstanding Shares50,117,000 sharesShort Percent of Float12.20%Today's Trading Volume575,371 sharesAverage Trading Volume815,810 sharesToday's Volume Vs. Average71% Short Selling REGENXBIO? Sign up to receive the latest short interest report for REGENXBIO and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartRGNX Short Interest Over TimeRGNX Days to Cover Over TimeRGNX Percentage of Float Shorted Over Time REGENXBIO Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 4/15/20255,250,000 shares $34.39 million +0.6%12.2%5.6 $6.55 3/31/20255,220,000 shares $37.32 million -13.7%12.1%5.3 $7.15 3/15/20256,050,000 shares $40.66 million -3.7%14.1%5.1 $6.72 2/28/20256,280,000 shares $41.26 million +1.8%14.6%5.1 $6.57 2/15/20256,170,000 shares $45.04 million -3.7%14.3%5.1 $7.30 1/31/20256,410,000 shares $51.73 million +5.3%N/A4.9 $8.07 1/15/20256,090,000 shares $45.31 million +0.8%N/A4.9 $7.44 12/31/20246,040,000 shares $46.69 million -3.1%N/A5.4 $7.73 12/15/20246,230,000 shares $51.58 million +18.4%N/A6.1 $8.28 11/30/20245,260,000 shares $52.18 million +13.9%N/A7 $9.92 Get the Latest News and Ratings for RGNX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for REGENXBIO and its competitors with MarketBeat's FREE daily newsletter. 11/15/20244,620,000 shares $44.49 million -5.9%N/A7.2 $9.63 10/31/20244,910,000 shares $42.18 million -1.6%N/A9.7 $8.59 10/15/20244,990,000 shares $51.40 million -6.0%N/A9.9 $10.30 9/30/20245,310,000 shares $55.70 million -14.4%N/A10.2 $10.49 9/15/20246,200,000 shares $79.61 million +2.1%N/A11.3 $12.84 8/31/20246,070,000 shares $74.18 million +5.9%N/A10.7 $12.22 8/15/20245,730,000 shares $71.11 million +10.4%N/A10.2 $12.41 7/31/20245,190,000 shares $73.96 million +7.9%N/A9 $14.25 7/15/20244,810,000 shares $61.90 million +11.3%N/A9 $12.87 6/30/20244,320,000 shares $50.54 million -5.3%N/A8.5 $11.70 6/15/20244,560,000 shares $56.59 million +5.6%N/A9.2 $12.41 5/31/20244,320,000 shares $61.99 million +7.7%N/A9 $14.35 5/15/20244,010,000 shares $65.08 million -5.9%N/A6.4 $16.23 4/30/20244,260,000 shares $65.39 million +4.7%N/A6 $15.35 4/15/20244,070,000 shares $73.34 million +3.0%N/A5.6 $18.02 3/31/20243,950,000 shares $83.23 million -4.8%N/A5.2 $21.07 3/15/20244,150,000 shares $92.09 million +8.4%N/A5.2 $22.19 2/29/20243,830,000 shares $66.80 million -8.2%9.6%5.1 $17.44 2/15/20244,170,000 shares $76.94 million +0.5%10.6%6.9 $18.45 1/31/20244,150,000 shares $51.13 million -5.9%10.6%7.1 $12.32 1/15/20244,410,000 shares $66.72 million +6.3%11.2%8 $15.13 12/31/20234,150,000 shares $74.49 million +4.0%10.6%7.9 $17.95 12/15/20233,990,000 shares $79.64 million +2.8%10.0%8.1 $19.96 11/30/20233,880,000 shares $75.74 million -4.4%9.7%8.6 $19.52 11/15/20234,060,000 shares $77.71 million -1.9%10.2%9.2 $19.14 10/31/20234,140,000 shares $53.36 million -2.6%10.4%10.7 $12.89 10/15/20234,250,000 shares $68.38 million +6.3%10.7%11.8 $16.09 9/30/20234,000,000 shares $65.84 million -8.7%10.1%11.5 $16.46 9/15/20234,380,000 shares $77.88 million +1.9%11.0%13.2 $17.78 8/31/20234,300,000 shares $76.11 million -1.4%10.8%12.3 $17.70Watch This Robotics Demo Before July 23rd (Ad)Jeff Brown, the tech legend who picked shares of Nvidia in 2016 before they jumped by more than 22,000%... Just did a demo of what Nvidia’s CEO said will be "the first multitrillion-dollar robotics industry." Click here to watch the demo… 8/15/20234,360,000 shares $78.61 million -2.7%11.0%11.8 $18.03 7/31/20234,480,000 shares $85.12 million -1.1%11.3%11.3 $19.00 7/15/20234,530,000 shares $85.44 million +1.1%11.5%11.4 $18.86 6/30/20234,480,000 shares $89.56 million -1.3%11.4%10.8 $19.99 6/15/20234,540,000 shares $89.21 million -5.2%11.5%10.5 $19.65 5/31/20234,790,000 shares $82.53 million -1.4%12.2%11.1 $17.23 5/15/20234,860,000 shares $105.51 million +2.5%12.3%10.9 $21.71 4/30/20234,740,000 shares $91.77 million +1.5%12.0%10.9 $19.36 4/15/20234,670,000 shares $88.54 million +3.3%11.8%10.8 $18.96 3/31/20234,520,000 shares $85.47 million +1.8%11.6%10.5 $18.91 3/15/20234,440,000 shares $92.40 million +6.5%11.4%11 $20.81 2/28/20234,170,000 shares $92.78 million +11.8%10.7%10.5 $22.25 2/15/20233,730,000 shares $83.74 million +13.7%9.6%10.4 $22.45 1/31/20233,280,000 shares $76.13 million +7.2%8.5%9.2 $23.21 1/15/20233,060,000 shares $75.12 million +9.7%7.9%8.8 $24.55 12/30/20222,790,000 shares $63.28 million +9.4%7.2%8.1 $22.68 12/15/20222,550,000 shares $58.73 million +10.9%6.5%7 $23.03 11/30/20222,300,000 shares $54.97 million -8.4%5.9%6.8 $23.90 11/15/20222,510,000 shares $55.14 million -6.0%6.4%7.2 $21.97 10/31/20222,670,000 shares $63.20 million +3.9%6.8%7.8 $23.67 10/15/20222,570,000 shares $57.49 million -12.0%6.6%7.4 $22.37 9/30/20222,920,000 shares $77.18 million -0.7%7.5%8 $26.43 9/15/20222,940,000 shares $79.17 million -6.1%7.5%8.2 $26.93 8/31/20223,130,000 shares $92.34 million -6.3%8.0%8.2 $29.50 8/15/20223,340,000 shares $111.89 million -2.3%8.6%8.5 $33.50 7/31/20223,420,000 shares $107.29 million +10.7%8.8%8 $31.37 7/15/20223,090,000 shares $97.61 million -5.5%8.3%7.1 $31.59 6/30/20223,270,000 shares $80.77 million +1.9%8.9%7.7 $24.70 6/15/20223,210,000 shares $67.28 million +2.6%8.7%7.6 $20.96 5/31/20223,130,000 shares $65.86 million -1.9%8.5%8.1 $21.04 5/15/20223,190,000 shares $66.48 million -12.8%8.6%7.8 $20.84 4/30/20223,660,000 shares $101.60 million +20.8%10.1%8.8 $27.76 4/15/20223,030,000 shares $92.48 million +10.2%8.4%7.4 $30.52 3/31/20222,750,000 shares $91.27 million -6.5%7.6%6.4 $33.19 3/15/20222,940,000 shares $79.56 million -7.0%8.1%7 $27.06 2/28/20223,160,000 shares $82.82 million +25.9%8.7%7.2 $26.21 2/15/20222,510,000 shares $67.64 million -18.5%7.0%5.8 $26.95 1/31/20223,080,000 shares $81.31 million -0.3%8.4%7.5 $26.40 1/15/20223,090,000 shares $86.40 million -1.3%8.4%8.3 $27.96 12/31/20213,130,000 shares $102.35 million -0.6%8.5%9 $32.70 12/15/20213,150,000 shares $102.88 million -1.9%8.5%7.7 $32.66 11/30/20213,210,000 shares $102.72 million +7.7%8.7%7 $32.00 11/15/20212,980,000 shares $94.53 million -7.7%8.1%6.4 $31.72 10/29/20213,230,000 shares $114.47 million +8.0%8.9%6.8 $35.44 10/15/20212,990,000 shares $107.49 million -8.8%8.2%6.2 $35.95 9/30/20213,280,000 shares $137.50 million +5.8%9.0%6.8 $41.92 9/15/20213,100,000 shares $140.03 million -0.3%8.5%7.4 $45.17 8/31/20213,110,000 shares $100.45 million -15.3%8.6%9.1 $32.30 8/13/20213,670,000 shares $115.35 million -0.5%10.1%11.2 $31.43 7/30/20213,690,000 shares $119.26 million +6.0%10.1%11.4 $32.32Watch This Robotics Demo Before July 23rd (Ad)Jeff Brown, the tech legend who picked shares of Nvidia in 2016 before they jumped by more than 22,000%... Just did a demo of what Nvidia’s CEO said will be "the first multitrillion-dollar robotics industry." Click here to watch the demo… 7/15/20213,480,000 shares $125.18 million +5.8%9.6%11.3 $35.97 6/30/20213,290,000 shares $127.82 million -11.3%9.0%10.6 $38.85 6/15/20213,710,000 shares $135.64 million +2.8%10.2%11.5 $36.56 5/28/20213,610,000 shares $127.32 million -5.7%9.9%10.9 $35.27 5/14/20213,830,000 shares $135.16 million +1.3%10.5%11.4 $35.29 4/30/20213,780,000 shares $131.05 million +2.4%10.3%10.5 $34.67 4/15/20213,690,000 shares $130.40 million -3.2%10.1%10.1 $35.34 3/31/20213,810,000 shares $128.05 million +26.6%10.5%8.1 $33.61 3/15/20213,010,000 shares $122.72 million +2.4%8.3%6.2 $40.77 2/26/20212,940,000 shares $117.54 million +10.5%N/A6 $39.98 2/12/20212,660,000 shares $125.90 million +9.0%N/A5.6 $47.33 1/29/20212,440,000 shares $101.43 million -0.4%N/A5 $41.57 1/15/20212,450,000 shares $122.38 million -11.6%N/A5.1 $49.95 12/31/20202,770,000 shares $129.50 million -15.8%N/A6.2 $46.75 12/15/20203,290,000 shares $132.26 million +1.5%9.8%8.7 $40.20 11/30/20203,240,000 shares $120.04 million -15.4%9.6%8.7 $37.05 11/15/20203,830,000 shares $132.25 million -11.3%11.4%10.4 $34.53 10/30/20204,320,000 shares $126.66 million -6.5%12.7%12 $29.32 10/15/20204,620,000 shares $130.33 million +6.5%13.7%13.4 $28.21 9/30/20204,340,000 shares $119.44 million -5.0%12.8%12.7 $27.52 9/15/20204,570,000 shares $133.31 million -0.2%13.5%13.1 $29.17 8/31/20204,580,000 shares $139.78 million +2.5%13.1%13.7 $30.52 8/14/20204,470,000 shares $141.48 million +3.7%12.8%12.2 $31.65 7/31/20204,310,000 shares $142.66 million -1.8%12.4%11.6 $33.10 7/15/20204,390,000 shares $169.67 million +2.8%12.6%11.2 $38.65 6/30/20204,270,000 shares $157.82 million -0.5%12.3%10.5 $36.96 6/15/20204,290,000 shares $157.91 million +3.1%12.4%10.1 $36.81 5/29/20204,160,000 shares $165.73 million -1.7%12.0%8.4 $39.84 5/15/20204,230,000 shares $162.01 million +5.8%12.2%8.2 $38.30 RGNX Short Interest - Frequently Asked Questions What is REGENXBIO's current short interest? Short interest is the volume of REGENXBIO shares that have been sold short but have not yet been closed out or covered. As of April 15th, investors have sold 5,250,000 shares of RGNX short. 12.20% of REGENXBIO's shares are currently sold short. Learn More on REGENXBIO's current short interest. What is a good short interest ratio for REGENXBIO? 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. RGNX shares currently have a short interest ratio of 6.0. Learn More on REGENXBIO's short interest ratio. Which institutional investors are shorting REGENXBIO? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of REGENXBIO: Jefferies Financial Group Inc., Jefferies Financial Group Inc., Group One Trading LLC, Citadel Advisors LLC, and Concourse Financial Group Securities Inc.. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for REGENXBIO? 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. 12.20% of REGENXBIO's floating shares are currently sold short. Is REGENXBIO's short interest increasing or decreasing? REGENXBIO saw a increase in short interest during the month of April. As of April 15th, there was short interest totaling 5,250,000 shares, an increase of 0.6% from the previous total of 5,220,000 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 REGENXBIO's short interest compare to its competitors? 12.20% of REGENXBIO's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to REGENXBIO: Galapagos NV (2.99%), IDEAYA Biosciences, Inc. (13.20%), Arcutis Biotherapeutics, Inc. (13.58%), Travere Therapeutics, Inc. (14.71%), Apogee Therapeutics, Inc. (25.93%), Agios Pharmaceuticals, Inc. (6.31%), Harmony Biosciences Holdings, Inc. (7.46%), Edgewise Therapeutics, Inc. (17.37%), Disc Medicine, Inc. (12.51%), Indivior PLC (2.18%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Invesco QQQ ($21.71 billion), iShares 20+ Year Treasury Bond ETF ($9.48 billion), Strategy Incorporated ($8.92 billion), Charter Communications, Inc. ($3.86 billion), Apollo Global Management, Inc. ($3.86 billion), Capital One Financial Co. ($3.72 billion), Super Micro Computer, Inc. ($3.47 billion), AppLovin Co. ($2.64 billion), VanEck Semiconductor ETF ($2.46 billion), and The Kroger Co. ($2.33 billion). View all of the most shorted stocks. What does it mean to sell short REGENXBIO stock? Short selling RGNX is an investing strategy that aims to generate trading profit from REGENXBIO as its price is falling. RGNX shares are trading up $0.20 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 REGENXBIO? A short squeeze for REGENXBIO 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 RGNX, which in turn drives the price of the stock up even further. How often is REGENXBIO'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 RGNX, twice per month. The most recent reporting period available is April, 15 2025. More Short Interest Resources from MarketBeat Related Companies GLPG Short Interest Data IDYA Short Interest Data ARQT Short Interest Data TVTX Short Interest Data APGE Short Interest Data AGIO Short Interest Data HRMY Short Interest Data EWTX Short Interest Data IRON Short Interest Data INDV Short Interest Data Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:RGNX) was last updated on 5/1/2025 by MarketBeat.com Staff From Our PartnersHow to invest in Elon Musk’s Optimus before its launchElon Musk is set to completely take over the AI industry with Optimus… A breakthrough AI-powered robot that El...InvestorPlace | SponsoredIs he more powerful than Trump? Is there anybody more powerful than Donald Trump right now? 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