Athira Pharma (ATHA) Short Interest Ratio & Short Volume $0.27 +0.00 (+0.93%) As of 04:00 PM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Athira Pharma Short Interest DataAthira Pharma (ATHA) has a short interest of 855,100 shares, representing 2.54% of the float (the number of shares available for trading by the public). This marks a 3.45% increase in short interest from the previous month. The short interest ratio (days to cover) is 4.3, indicating that it would take 4.3 days of the average trading volume of 1.48 million shares to cover all short positions.Current Short Interest855,100 sharesPrevious Short Interest826,600 sharesChange Vs. Previous Month+3.45%Dollar Volume Sold Short$240,796.16Short Interest Ratio4.3 Days to CoverLast Record DateApril 30, 2025Outstanding Shares39,042,000 sharesFloat Size33,690,000 sharesShort Percent of Float2.54%Today's Trading Volume25,651 sharesAverage Trading Volume1,479,527 sharesToday's Volume Vs. Average2% Short Selling Athira Pharma? Sign up to receive the latest short interest report for Athira Pharma and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartATHA Short Interest Over TimeATHA Days to Cover Over TimeATHA Percentage of Float Shorted Over Time Athira Pharma Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 4/30/2025855,100 shares $240,796.16 +3.5%2.5%4.3 $0.28 4/15/2025826,600 shares $195,904.20 -11.6%2.5%3.8 $0.24 3/31/2025934,500 shares $261,660.00 -10.1%2.6%4.6 $0.28 3/15/20251,040,000 shares $348,712.00 +17.3%2.9%4.6 $0.34 2/28/2025886,300 shares $364,003.41 -0.2%2.5%3.7 $0.41 2/15/2025888,000 shares $415,584.00 -6.5%2.5%3.4 $0.47 1/31/2025949,500 shares $498,772.35 -30.7%2.7%2.1 $0.53 1/15/20251,370,000 shares $742,403.00 +17.1%3.9%0.3 $0.54 12/31/20241,170,000 shares $686,439.00 -17.6%3.3%0.3 $0.59 12/15/20241,420,000 shares $830,558.00 -21.6%4.0%0.3 $0.58 Get the Latest News and Ratings for ATHA and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Athira Pharma and its competitors with MarketBeat's FREE daily newsletter. 11/30/20241,810,000 shares $1.19 million -18.5%5.1%0.4 $0.66 11/15/20242,220,000 shares $1.49 million +43.2%6.2%0.4 $0.67 10/31/20241,550,000 shares $663,555.00 -0.6%4.4%0.3 $0.43 10/15/20241,560,000 shares $693,264.00 -0.6%4.4%1.9 $0.44 9/30/20241,570,000 shares $700,220.00 -4.9%4.4%2.1 $0.45 9/15/20241,650,000 shares $871,365.00 +66.2%4.7%2.3 $0.53 8/31/2024992,900 shares $3.07 million +0.2%2.8%1.7 $3.09 8/15/2024990,700 shares $2.96 million +0.2%2.8%7.4 $2.99 7/31/2024989,200 shares $3.16 million -8.4%2.8%7.6 $3.19 7/15/20241,080,000 shares $3.63 million -1.8%3.1%7.5 $3.36 6/30/20241,100,000 shares $2.92 million +8.9%3.1%7 $2.65 6/15/20241,010,000 shares $2.57 million +13.6%2.9%5.8 $2.54 5/31/2024889,500 shares $2.33 million -3.7%2.5%3.4 $2.62 5/15/2024923,300 shares $2.04 million -12.1%2.6%3 $2.21 4/30/20241,050,000 shares $2.07 million +1.0%3.0%3.1 $1.97 4/15/20241,040,000 shares $2.14 million +3.0%2.9%2.9 $2.06 3/31/20241,010,000 shares $2.77 million +3.1%2.9%2.5 $2.74 3/15/2024979,300 shares $2.57 million +25.0%2.8%2.2 $2.62 2/29/2024783,600 shares $3.02 million +20.5%2.2%2 $3.85 2/15/2024650,300 shares $2.38 million -9.4%1.8%1.9 $3.66 1/31/2024717,600 shares $2.27 million +39.6%2.1%2.2 $3.17 1/15/2024513,900 shares $1.54 million +25.4%1.5%1.6 $3.00 12/31/2023409,900 shares $996,057.00 -16.6%1.2%1.4 $2.43 12/15/2023491,600 shares $1.14 million -1.6%1.4%2.3 $2.31 11/30/2023499,600 shares $719,424.00 +3.0%1.4%2.7 $1.44 11/15/2023484,900 shares $770,991.00 -8.8%1.4%2.9 $1.59 10/31/2023531,500 shares $829,140.00 -6.2%1.5%3.6 $1.56 10/15/2023566,700 shares $1.01 million -23.6%1.6%4 $1.79 9/30/2023741,900 shares $1.50 million -7.6%2.1%5.1 $2.02 9/15/2023803,300 shares $1.62 million -2.5%2.3%5.3 $2.02Trump’s Exec Order #14154 could be a “Millionaire-Maker” (Ad)Former Presidential Advisor, Jim Rickards, says Trump could “rewire our economy and hand millions of Americans a chance at true financial independence in the months ahead.” We recently sat down with Rickards to capture all the key details on tape. For the moment, you can watch this interview free of charge – just click here. 8/31/2023823,500 shares $1.84 million -17.3%2.3%3.4 $2.23 8/15/2023996,000 shares $2.66 million -16.3%2.8%3.8 $2.67 7/31/20231,190,000 shares $3.47 million -3.3%3.4%4.7 $2.92 7/15/20231,230,000 shares $3.78 million +7.0%3.5%4.9 $3.07 6/30/20231,150,000 shares $3.39 million -46.0%3.3%4.4 $2.95 6/15/20232,130,000 shares $6.48 million +3.9%6.1%7.7 $3.04 5/31/20232,050,000 shares $5.68 million No Change5.8%9 $2.77 5/15/20232,050,000 shares $5.88 million -5.5%5.8%9.6 $2.87 4/30/20232,170,000 shares $6.05 million -1.8%6.4%9.6 $2.79 4/15/20232,210,000 shares $5.68 million -9.4%6.5%8.3 $2.57 3/31/20232,440,000 shares $6.10 million +8.4%6.8%7.7 $2.50 3/15/20232,250,000 shares $6.05 million +9.8%N/A6.9 $2.69 2/28/20232,050,000 shares $6.31 million +5.7%5.5%6.3 $3.08 2/15/20231,940,000 shares $6.44 million +4.9%5.2%5.9 $3.32 1/31/20231,850,000 shares $7.47 million +20.9%5.0%5.6 $4.04 1/15/20231,530,000 shares $5.89 million No Change4.1%4.8 $3.85 12/30/20221,530,000 shares $4.85 million -1.9%4.1%5.5 $3.17 12/15/20221,560,000 shares $4.96 million -4.3%N/A5.9 $3.18 11/30/20221,630,000 shares $5.07 million -3.0%N/A6.4 $3.11 11/15/20221,680,000 shares $5.29 million -6.2%N/A6.9 $3.15 10/31/20221,790,000 shares $5.92 million -2.2%N/A7 $3.31 10/15/20221,830,000 shares $5.87 million +0.6%5.1%5.9 $3.21 9/30/20221,820,000 shares $5.41 million -2.2%5.1%5.6 $2.97 9/15/20221,860,000 shares $6.64 million +3.3%5.2%3.3 $3.57 8/31/20221,800,000 shares $6.08 million -1.1%5.0%1.9 $3.38 8/15/20221,820,000 shares $7.10 million +2.8%5.1%1.9 $3.90 7/31/20221,770,000 shares $6.16 million -12.8%5.1%1.8 $3.48 7/15/20222,030,000 shares $6.98 million -27.2%5.9%2.2 $3.44 6/30/20222,790,000 shares $8.51 million -11.2%8.0%3.1 $3.05 6/15/20223,140,000 shares $25.81 million +6.8%9.0%4.1 $8.22 5/31/20222,940,000 shares $26.70 million +1.4%8.5%10.1 $9.08 5/15/20222,900,000 shares $24.01 million +7.4%8.3%10 $8.28 4/30/20222,700,000 shares $27.78 million +20.0%7.8%9.7 $10.29 4/15/20222,250,000 shares $26.46 million -1.3%6.5%7.8 $11.76 3/31/20222,280,000 shares $30.78 million -17.1%6.6%7.7 $13.50 3/15/20222,750,000 shares $26.57 million +13.2%8.0%10.3 $9.66 2/28/20222,430,000 shares $22.26 million +3.0%7.0%8.4 $9.16 2/15/20222,360,000 shares $24.00 million +18.6%6.8%7.5 $10.17 1/31/20221,990,000 shares $20.50 million -2.9%6.3%5.5 $10.30 1/15/20222,050,000 shares $22.65 million +0.5%6.0%5 $11.05 12/31/20212,040,000 shares $26.58 million +15.3%6.0%4.6 $13.03 12/15/20211,770,000 shares $22.97 million -9.2%5.2%4.1 $12.98 11/30/20211,950,000 shares $26.29 million +28.3%5.7%4.4 $13.48 11/15/20211,520,000 shares $23.85 million +29.9%4.4%3.6 $15.69 10/29/20211,170,000 shares $15.29 million +9.4%3.4%2.9 $13.07 10/15/20211,070,000 shares $10.23 million -6.1%3.2%2.9 $9.56 9/30/20211,140,000 shares $10.69 million -15.6%3.4%2.8 $9.38 9/15/20211,350,000 shares $13.62 million +20.5%4.0%2.4 $10.09 8/31/20211,120,000 shares $11.86 million -9.7%3.3%0.9 $10.59 8/13/20211,240,000 shares $12.19 million -6.1%3.6%1 $9.83A grave, grave error. (Ad)I thought what happened 25 years ago was a once- in-a-lifetime event… but how wrong I was. Because here we are, a quarter of a century later, almost to the exact day, and it’s happening again. Here’s the full story for you. 7/30/20211,320,000 shares $12.69 million No Change4.0%1.1 $9.61 7/15/20211,320,000 shares $13.09 million +9.1%4.0%1.1 $9.92 6/30/20211,210,000 shares $12.39 million -28.4%3.6%1.1 $10.24 6/15/20211,690,000 shares $31.65 million +21.6%5.1%1.7 $18.73 5/28/20211,390,000 shares $27.72 million +53.8%4.2%4.6 $19.94 5/14/2021904,000 shares $16.34 million +7.1%2.7%3.3 $18.08 4/30/2021843,800 shares $16.22 million -27.9%2.5%2.8 $19.22 4/15/20211,170,000 shares $20.46 million +25.6%3.5%3.1 $17.49 3/31/2021931,400 shares $15.74 million +16.3%2.8%2.3 $16.90 3/15/2021800,900 shares $17.27 million +26.4%2.5%1.8 $21.56 2/26/2021633,800 shares $13.24 million -4.4%2.0%1.5 $20.89 2/12/2021663,100 shares $14.87 million -17.9%2.0%1.7 $22.42 1/29/2021807,900 shares $17.14 million -13.8%2.5%2.2 $21.21 1/15/2021937,200 shares $25.11 million No Change3.0%2.7 $26.79 ATHA Short Interest - Frequently Asked Questions What is Athira Pharma's current short interest? Short interest is the volume of Athira Pharma shares that have been sold short but have not yet been closed out or covered. As of April 30th, traders have sold 855,100 shares of ATHA short. 2.54% of Athira Pharma's shares are currently sold short. Learn More on Athira Pharma's current short interest. What is a good short interest ratio for Athira Pharma? 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. ATHA shares currently have a short interest ratio of 4.0. Learn More on Athira Pharma's short interest ratio. Which institutional investors are shorting Athira Pharma? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Athira Pharma: 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 Athira Pharma? 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. 2.54% of Athira Pharma's floating shares are currently sold short. Is Athira Pharma's short interest increasing or decreasing? Athira Pharma saw a increase in short interest in April. As of April 30th, there was short interest totaling 855,100 shares, an increase of 3.4% from the previous total of 826,600 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 Athira Pharma's float size? Athira Pharma currently has issued a total of 39,042,000 shares. Some of Athira Pharma'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. Athira Pharma currently has a public float of 33,690,000 shares. How does Athira Pharma's short interest compare to its competitors? 2.54% of Athira Pharma's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Athira Pharma: Aadi Bioscience, Inc. (6.58%), Anebulo Pharmaceuticals, Inc. (0.14%), Forte Biosciences, Inc. (2.06%), Pluri Inc. (0.51%), Alterity Therapeutics Limited (0.35%), RenovoRx, Inc. (0.72%), Atara Biotherapeutics, Inc. (13.67%), Prelude Therapeutics Incorporated (3.60%), Xilio Therapeutics, Inc. (2.22%), SCYNEXIS, Inc. (1.64%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Spotify Technology S.A. ($4.67 billion), Charter Communications, Inc. ($4.58 billion), Capital One Financial Co. ($4.47 billion), The Kroger Co. ($2.56 billion), Reddit, Inc. ($2.23 billion), Rivian Automotive, Inc. ($2.16 billion), Live Nation Entertainment, Inc. ($1.90 billion), SoFi Technologies, Inc. ($1.85 billion), Zscaler, Inc. ($1.75 billion), and Omnicom Group Inc. ($1.75 billion). View all of the most shorted stocks. What does it mean to sell short Athira Pharma stock? Short selling ATHA is an investing strategy that aims to generate trading profit from Athira Pharma as its price is falling. ATHA 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 Athira Pharma? A short squeeze for Athira Pharma 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 ATHA, which in turn drives the price of the stock up even further. How often is Athira Pharma'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 ATHA, twice per month. The most recent reporting period available is April, 30 2025. More Short Interest Resources from MarketBeat Related Companies Aadi Bioscience Short Interest Data Anebulo Pharmaceuticals Short Interest Data Forte Biosciences Short Interest Data Pluri Short Interest Data Alterity Therapeutics Short Interest Data RenovoRx Short Interest Data Atara Biotherapeutics Short Interest Data Prelude Therapeutics Short Interest Data Xilio Therapeutics Short Interest Data SCYNEXIS 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:ATHA) was last updated on 5/22/2025 by MarketBeat.com Staff From Our PartnersJuly 2025 Rule Change to Impact Retirement InvestorsThere's a massive change from a new rule going into effect this July. And it's one the Big Banks are alread...Premier Gold Co | SponsoredThink NVDA’s run was epic? You ain’t seen nothin’ yetAsk most investors and they’ll probably tell you Nvidia is the undisputed AI stock of the decade. In 2023, ...Timothy Sykes | SponsoredThe DOJ Just Said Your Money Isn’t YoursWhat If Washington Declared That: YOUR Money ISN'T Actually Yours? Sounds insane, but that's exactly what ...Priority Gold | SponsoredElon just did WHAT!?As you may recall, Biden and the Fed were working on a central bank digital currency, or CBDC. Had they got...Brownstone Research | SponsoredThe Collapse Has Already Started — Your 401(k) Is NextThere's a major heist happening on American wealth in real time. Except this one doesn't involve masks or v...American Hartford Gold | SponsoredElon’s 2025 Silver Crisis (What It Means for You)Elon Musk is back in the spotlight—this time for fueling a global scramble for silver. Tesla's relentless p...GoldenCrest Metals | SponsoredThe Secret Map of America, Declassified…Locked inside a Maryland man’s private safe is a map. But not just any map, mind you… This map shows a “...Banyan Hill Publishing | SponsoredTrump’s treachery Trump’s Final Reset Inside the shocking plot to re-engineer America’s financial system…and why you need to ...Porter & Company | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added five stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Athira Pharma, Inc. Please log in to your account or sign up in order to add this asset to your watchlist. Share Athira Pharma With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Buy ATHA Stock Free ATHA Stock Alerts