Ironwood Pharmaceuticals (IRWD) Institutional Ownership $0.59 -0.06 (-9.72%) Closing price 04:00 PM EasternExtended Trading$0.60 +0.01 (+1.87%) As of 05:26 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 Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Ironwood Pharmaceuticals (NASDAQ:IRWD)Number ofInstitutional Buyers(last 12 months)115TotalInstitutional Inflows(last 12 months)$127.73MNumber ofInstitutional Sellers(last 12 months)68TotalInstitutional Outflows(last 12 months)$130.02M Get IRWD Insider Trade Alerts Want to know when executives and insiders are buying or selling Ironwood Pharmaceuticals stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Email Address Skip Chart & View Institutional Buying and Selling Data IRWD Institutional Buying and Selling by Quarter Ironwood Pharmaceuticals Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/21/2025McAdam LLC27,294$40K0.0%N/A0.017% 5/21/2025Acadian Asset Management LLC2,645,189$3.88M0.0%+160.7%1.635% 5/19/2025 Jane Street Group LLC3,510,117$5.16M0.0%+740.5%2.169% 5/16/2025 Voleon Capital Management LP 870,629$1.28M0.1%+952.4%0.538% 5/16/2025 Goldman Sachs Group Inc.1,575,416$2.32M0.0%+72.1%0.974% 5/16/2025 Dynamic Technology Lab Private Ltd38,610$57K0.0%N/A0.024% 5/16/2025 Parkman Healthcare Partners LLC205,086$301K0.0%-49.8%0.127% 5/16/2025 Millennium Management LLC6,359,682$9.35M0.0%+186.6%3.930% 5/16/2025 Jacobs Levy Equity Management Inc.1,580,320$2.32M0.0%-56.4%0.977% 5/16/2025 AQR Capital Management LLC2,523,875$3.71M0.0%+535.8%1.560% Get the Latest News and Ratings for IRWD and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Ironwood Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 5/15/2025 Armistice Capital LLC13,700,000$20.14M0.3%+44.7%8.467% 5/15/2025 State of Wyoming58,775$86K0.0%+40.4%0.036% 5/14/2025 Ieq Capital LLC185,728$273K0.0%N/A0.115% 5/14/2025 Old West Investment Management LLC108,211$159K0.1%+74.2%0.067% 5/14/2025 MetLife Investment Management LLC67,229$99K0.0%-24.7%0.042% 5/14/2025 Walleye Capital LLC431,410$634K0.0%-25.6%0.267% 5/14/2025 EntryPoint Capital LLC215,843$317K0.1%+243.1%0.133% 5/13/2025 Russell Investments Group Ltd.218,028$320K0.0%-48.1%0.135% 5/12/2025 Nuveen LLC471,361$693K0.0%N/A0.291% 5/12/2025 Invesco Ltd.275,253$405K0.0%-47.3%0.170% 5/12/2025 Connor Clark & Lunn Investment Management Ltd.1,488,044$2.19M0.0%+335.8%0.920% 5/9/2025 Charles Schwab Investment Management Inc.2,647,015$3.89M0.0%+33.5%1.636% 5/9/2025 Vanguard Group Inc.15,696,161$23.07M0.0%-19.7%9.700% 5/8/2025 XTX Topco Ltd552,613$812K0.0%+1,104.4%0.342% 5/8/2025 GSA Capital Partners LLP524,676$771K0.1%+3,683.6%0.324% 5/8/2025 Federated Hermes Inc.1,305,362$1.92M0.0%+252.3%0.807% 5/6/2025 Pacer Advisors Inc.1,789,098$2.63M0.0%-84.7%1.106% 5/6/2025 KLP Kapitalforvaltning AS198,400$292K0.0%+719.8%0.123% 5/6/2025 Y Intercept Hong Kong Ltd39,782$58K0.0%+162.6%0.025% 5/5/2025 Allianz Asset Management GmbH293,100$431K0.0%+411.5%0.181% 5/2/2025 Victory Capital Management Inc.18,714$28K0.0%-91.2%0.012% 5/1/2025 CWM LLC57,001$84K0.0%+801.1%0.035% 4/30/2025 Cerity Partners LLC96,478$142K0.0%N/A0.060% 4/30/2025 Alps Advisors Inc.116,860$172K0.0%-9.7%0.072% 4/29/2025 Bank of New York Mellon Corp499,613$734K0.0%-48.9%0.309% 4/28/2025 Principal Financial Group Inc.92,382$136K0.0%-87.9%0.057% 4/17/2025 Exchange Traded Concepts LLC178,523$262K0.0%+173.5%0.110% 4/15/2025 Simplicity Wealth LLC30,324$45K0.0%N/A0.019% 4/8/2025 Rhumbline Advisers208,043$306K0.0%-40.2%0.129% 3/17/2025 Wealth Enhancement Advisory Services LLC13,235$59K0.0%N/A0.008% Elon just did WHAT!? (Ad)As you may recall, Biden and the Fed were working on a central bank digital currency, or CBDC. Had they gotten away with it, the Fed and U.S. banks could have seized control of our financial lives forever. But Trump stopped them cold on January 23rd, 2025, when he outlawed CBDCs… Paving the way for Elon Musk's secret master plan.Click here to see how to claim your stake before they launch to avoid missing out.2/28/2025 Universal Beteiligungs und Servicegesellschaft mbH426,138$1.89M0.0%N/A0.266% 2/19/2025 Public Employees Retirement System of Ohio100,172$444K0.0%-8.8%0.063% 2/17/2025 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC286,990$1.27M0.0%+6.4%0.179% 2/17/2025 Two Sigma Advisers LP1,234,000$5.47M0.0%-2.1%0.771% 2/17/2025 Two Sigma Investments LP863,428$3.83M0.0%-3.1%0.540% 2/17/2025 State of Wyoming41,858$185K0.0%+37.8%0.026% 2/17/2025 Stonepine Capital Management LLC648,785$2.87M2.3%-35.1%0.405% 2/17/2025 Rafferty Asset Management LLC236,732$1.05M0.0%-40.3%0.148% 2/17/2025 Point72 Asia Singapore Pte. Ltd.8,022$36K0.0%N/A0.005% 2/17/2025 ProShare Advisors LLC50,204$222K0.0%+28.9%0.031% 2/17/2025 Parkman Healthcare Partners LLC408,535$1.81M0.2%-10.3%0.255% 2/17/2025 Man Group plc354,824$1.57M0.0%-60.3%0.222% 2/17/2025 Nomura Holdings Inc.23,852$106K0.0%N/A0.015% 2/17/2025 OMERS ADMINISTRATION Corp215,110$953K0.0%-32.9%0.134% 2/17/2025 Jacobs Levy Equity Management Inc.3,623,026$16.05M0.1%-15.1%2.264% 2/17/2025 Graham Capital Management L.P.63,032$279K0.0%-41.6%0.039% 2/17/2025 Deutsche Bank AG1,567,535$6.94M0.0%+47.4%0.980% 2/17/2025 Caption Management LLC50,000$222K0.0%N/A0.031% 2/17/2025 Bridgeway Capital Management LLC31,000$137K0.0%-90.0%0.019% 2/17/2025 Bank of America Corp DE678,145$3.00M0.0%+61.6%0.424% 2/17/2025 BNP Paribas Financial Markets122,640$543K0.0%-20.7%0.077% 2/17/2025 Ameriprise Financial Inc.565,618$2.51M0.0%-5.4%0.353% 2/17/2025 AXA S.A.288,471$1.28M0.0%N/A0.180% 2/14/2025 Jane Street Group LLC417,642$1.85M0.0%+29.0%0.261% 2/14/2025 Comerica Bank122,083$541K0.0%-18.7%0.076% 2/14/2025 Voleon Capital Management LP82,728$366K0.0%N/A0.052% 2/14/2025 PDT Partners LLC223,938$992K0.1%+720.3%0.140% 2/14/2025 Schonfeld Strategic Advisors LLC255,040$1.13M0.0%+40.4%0.159% 2/14/2025 Northern Trust Corp1,625,110$7.20M0.0%+7.9%1.016% 2/14/2025 Tudor Investment Corp ET AL26,066$115K0.0%-65.4%0.016% 2/14/2025 Boothbay Fund Management LLC12,970$57K0.0%N/A0.008% 2/14/2025 Virtus ETF Advisers LLC98,218$435K0.2%+78.3%0.061% 2/14/2025 Price T Rowe Associates Inc. MD95,898$425K0.0%-7.2%0.060% 2/14/2025 Dark Forest Capital Management LP53,776$238K0.0%-58.1%0.034% 2/14/2025 Hsbc Holdings PLC20,886$91K0.0%+88.9%0.013% 2/14/2025 Tower Research Capital LLC TRC17,521$78K0.0%+1,130.4%0.011% 2/14/2025 MetLife Investment Management LLC89,255$395K0.0%+10.6%0.056% 2/14/2025 MYDA Advisors LLC115,200$510K0.1%N/A0.072% 2/14/2025 Dimensional Fund Advisors LP218,422$968K0.0%+4.9%0.136% 2/13/2025 CANADA LIFE ASSURANCE Co129,507$573K0.0%-12.8%0.081% 2/13/2025 Walleye Capital LLC580,097$2.57M0.0%+107.0%0.362% 2/13/2025 XTX Topco Ltd45,881$203K0.0%N/A0.029% 2/13/2025 Mariner LLC105,964$469K0.0%+134.4%0.066% 2/13/2025 LSV Asset Management4,081,501$18.08M0.0%-19.2%2.550% 2/13/2025 Raymond James Financial Inc.15,295$68K0.0%N/A0.010% 2/13/2025 Renaissance Technologies LLC9,066,241$40.16M0.1%+5.5%5.665% 2/13/2025 Invesco Ltd.521,988$2.31M0.0%-1.1%0.326% 2/13/2025 Bank of Montreal Can24,758$110K0.0%+81.1%0.015% 2/13/2025 Federated Hermes Inc.370,476$1.64M0.0%N/A0.232% 2/13/2025 Russell Investments Group Ltd.420,451$1.86M0.0%-9.2%0.263% Trump wipes out trillions overnight… (Ad)Is there anybody more powerful than Donald Trump right now? In a single tariff announcement, he wiped out nearly $5 trillion in wealth from the S&P 500 and $6.4 trillion from the Dow Jones… Not to mention the countless trillions of dollars lost in every market around the world… leaving the major political powers scrambling in fear of Trump’s next move.Whether you take some of that wealth for yourself depends on if you watch this controversial exposé 2/13/2025 Envestnet Asset Management Inc.11,272$50K0.0%N/A0.007% 2/13/2025 Old West Investment Management LLC62,119$275K0.1%-8.6%0.039% 2/12/2025 RPO LLC17,293$77K0.1%N/A0.011% 2/12/2025 Headlands Technologies LLC20,185$89K0.0%-63.4%0.013% 2/12/2025 Geode Capital Management LLC3,306,570$14.65M0.0%+0.4%2.066% 2/12/2025 Norges Bank252,291$1.12M0.0%N/A0.158% 2/11/2025 EntryPoint Capital LLC62,913$279K0.1%+277.5%0.039% 2/11/2025 Corebridge Financial Inc.75,304$334K0.0%-7.2%0.047% 2/11/2025 Vanguard Group Inc.19,538,555$86.56M0.0%-11.3%12.209% 2/11/2025 KLP Kapitalforvaltning AS24,200$107K0.0%N/A0.015% (Data available from 1/1/2016 forward) IRWD Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of IRWD shares? During the previous two years, 230 institutional investors and hedge funds held shares of Ironwood Pharmaceuticals. The most heavily invested institutionals were State Street Corp ($40.87M), Renaissance Technologies LLC ($40.16M), Adage Capital Partners GP L.L.C. ($23.71M), Brown Capital Management LLC ($23.52M), Vanguard Group Inc. ($23.07M), Armistice Capital LLC ($20.14M), and LSV Asset Management ($18.08M).Learn more on IRWD's institutional investors. Which institutional investors have been buying Ironwood Pharmaceuticals stock? Of the 186 institutional investors that purchased Ironwood Pharmaceuticals stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Armistice Capital LLC ($12.33M), Pacer Advisors Inc. ($4.73M), Vanguard Group Inc. ($4.67M), Millennium Management LLC ($4.14M), Jacobs Levy Equity Management Inc. ($3.60M), Jane Street Group LLC ($3.35M), and Renaissance Technologies LLC ($2.62M). How much institutional buying is happening at Ironwood Pharmaceuticals? Institutional investors have bought a total of 74,559,233 shares in the last 24 months. This purchase volume represents approximately $460.53M in transactions. Which Ironwood Pharmaceuticals major shareholders have been selling company stock? Of the 117 institutional investors that sold Ironwood Pharmaceuticals stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Pacer Advisors Inc. ($9.94M), Bank of Montreal Can ($8.42M), Vanguard Group Inc. ($6.34M), Jacobs Levy Equity Management Inc. ($2.78M), LSV Asset Management ($2.57M), Dimensional Fund Advisors LP ($2.44M), and Royce & Associates LP ($1.60M). How much institutional selling is happening at Ironwood Pharmaceuticals? Institutional investors have sold a total of 49,653,442 shares in the last 24 months. This volume of shares sold represents approximately $259.72M in transactions. Related Companies Zenas Biopharma Major Shareholders Myriad Genetics Major Shareholders Verastem Major Shareholders Rigel Pharmaceuticals Major Shareholders Emergent BioSolutions Major Shareholders XOMA Major Shareholders Lexicon Pharmaceuticals Major Shareholders Vanda Pharmaceuticals Major Shareholders Codexis Major Shareholders Sangamo Therapeutics Major Shareholders This page (NASDAQ:IRWD) was last updated on 5/21/2025 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 | SponsoredGold Hits New Highs as Global Markets SpiralWhen Trump took office in 2017, gold was just $1,100 an ounce. By the time he left, it had soared to $1,839. ...Premier Gold Co | SponsoredWhite House to reset Social Security?Elon Musk's parting DOGE gift looks set to shock America... A single announcement by July 22nd could soon b...Altimetry | SponsoredThe Trump Dump is starting; Get out of stocks now?The first 365 days of the Trump presidency… Will be the best time to get rich in American history.Paradigm Press | 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 | SponsoredBuffett’s favorite chart just hit 209% – here’s what that means for goldA Historic Gold Announcement Is About to Rock Wall Street For months, sharp-eyed analysts have watched the ...Golden Portfolio | SponsoredEveryone’s watching Nvidia right now. Here’s why I’m excited.So, unless you’ve been living under a rock, you probably saw the news… Nvidia just signed a $7 BILLION deal...Timothy Sykes | SponsoredIs President Trump Lying To You With This?President Trump’s economic transition isn’t without hardship. But what if there were a smart, tax-free way to ...Colonial Metals | 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 Ironwood Pharmaceuticals, Inc. Please log in to your account or sign up in order to add this asset to your watchlist. Share Ironwood Pharmaceuticals 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.