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Ironwood Pharmaceuticals (IRWD) Institutional Ownership

Ironwood Pharmaceuticals logo
$1.27 -0.10 (-7.30%)
Closing price 09/25/2025 04:00 PM Eastern
Extended Trading
$1.33 +0.06 (+4.72%)
As of 09/25/2025 07:59 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.
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Institutional Ownership Changes (13F Filings) for Ironwood Pharmaceuticals (NASDAQ:IRWD)

Number of
Institutional Buyers
(last 12 months)
111
Total
Institutional Inflows
(last 12 months)
$99.22M
Number of
Institutional Sellers
(last 12 months)
61
Total
Institutional Outflows
(last 12 months)
$68.59M
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IRWD Institutional Buying and Selling by Quarter

Ironwood Pharmaceuticals Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/19/2025 State of Wyoming205,644$147K0.0%+249.9%0.127%
8/15/2025 Captrust Financial Advisors44,447$32K0.0%N/A0.027%
8/15/2025 Tidal Investments LLC310,079$222K0.0%N/A0.192%
8/15/2025 Man Group plc234,257$168K0.0%-29.8%0.145%
8/15/2025 Engineers Gate Manager LP73,354$53K0.0%+369.2%0.045%
8/15/2025 Bridgeway Capital Management LLC75,000$54K0.0%+141.9%0.046%
8/15/2025 Bank of America Corp DE3,357,872$2.41M0.0%+135.1%2.075%
8/15/2025 AQR Capital Management LLC6,165,637$4.42M0.0%+144.3%3.810%
8/14/2025 Jane Street Group LLC1,745,122$1.25M0.0%-50.3%1.078%
8/14/2025 Armistice Capital LLC16,150,000$11.58M0.2%+17.9%9.980%
8/14/2025 Sei Investments Co.683,604$490K0.0%+381.8%0.422%
8/14/2025 Qube Research & Technologies Ltd3,351,002$2.40M0.0%+1.3%2.071%
8/14/2025 Cerity Partners LLC339,689$244K0.0%+252.1%0.210%
8/14/2025 Federated Hermes Inc.2,177,038$1.56M0.0%+66.8%1.345%
8/13/2025 Amundi755,536$559K0.0%+979.6%0.467%
8/13/2025 Marshall Wace LLP3,993,557$2.88M0.0%+616.3%2.468%
8/13/2025 Invesco Ltd.322,147$231K0.0%+17.0%0.199%
8/13/2025 State Board of Administration of Florida Retirement System44,394$32K0.0%-84.8%0.027%
8/11/2025 LSV Asset Management2,750,200$1.97M0.0%-31.2%1.700%
8/11/2025 Universal Beteiligungs und Servicegesellschaft mbH526,775$378K0.0%+26.0%0.326%
8/8/2025 Geode Capital Management LLC3,499,332$2.51M0.0%+2.4%2.162%
8/7/2025 Acadian Asset Management LLC6,549,687$4.69M0.0%+147.6%4.048%
8/7/2025 Connor Clark & Lunn Investment Management Ltd.2,206,948$1.58M0.0%+48.3%1.364%
8/7/2025 Los Angeles Capital Management LLC1,211,155$869K0.0%+76.1%0.748%
8/6/2025 Savant Capital LLC267,776$192K0.0%+134.2%0.165%
8/1/2025 OVERSEA CHINESE BANKING Corp Ltd35,016$25K0.0%N/A0.022%
7/31/2025 Focus Partners Advisor Solutions LLC39,743$29K0.0%+284.6%0.025%
7/31/2025 R Squared Ltd38,765$28K0.0%+286.5%0.024%
7/25/2025 CWM LLC182,774$131K0.0%+220.7%0.113%
7/25/2025 Vanguard Personalized Indexing Management LLC50,677$36K0.0%N/A0.031%
7/24/2025 Inspire Investing LLC552,420$396K0.0%+138.3%0.341%
7/23/2025 KLP Kapitalforvaltning AS174,200$125K0.0%-12.2%0.108%
7/10/2025 Wealth Enhancement Advisory Services LLC125,460$96K0.0%+425.2%0.078%
7/9/2025 Pallas Capital Advisors LLC79,512$57K0.0%+454.5%0.049%
6/3/2025 Inspire Investing LLC231,825$341K0.0%+159.7%0.143%
5/29/2025Rhumbline Advisers208,043$306K0.0%-40.2%0.129%
5/28/2025Strs Ohio76,600$113K0.0%N/A0.047%
5/21/2025McAdam LLC27,294$40K0.0%N/A0.017%
5/21/2025Acadian Asset Management LLC2,645,189$3.88M0.0%+160.7%1.635%
5/19/2025Jane Street Group LLC3,510,117$5.16M0.0%+740.5%2.169%
5/16/2025Voleon Capital Management LP870,629$1.28M0.1%+952.4%0.538%
5/16/2025Goldman Sachs Group Inc.1,575,416$2.32M0.0%+72.1%0.974%
5/16/2025Dynamic Technology Lab Private Ltd38,610$57K0.0%N/A0.024%
5/16/2025Parkman Healthcare Partners LLC205,086$301K0.0%-49.8%0.127%
5/16/2025Millennium Management LLC6,359,682$9.35M0.0%+186.6%3.930%
5/16/2025Jacobs Levy Equity Management Inc.1,580,320$2.32M0.0%-56.4%0.977%
5/16/2025AQR Capital Management LLC2,523,875$3.71M0.0%+535.8%1.560%
5/15/2025Armistice Capital LLC13,700,000$20.14M0.3%+44.7%8.467%
5/15/2025State of Wyoming58,775$86K0.0%+40.4%0.036%
5/14/2025Ieq Capital LLC185,728$273K0.0%N/A0.115%
5/14/2025Old West Investment Management LLC108,211$159K0.1%+74.2%0.067%
5/14/2025MetLife Investment Management LLC67,229$99K0.0%-24.7%0.042%
5/14/2025Walleye Capital LLC431,410$634K0.0%-25.6%0.267%
5/14/2025EntryPoint Capital LLC215,843$317K0.1%+243.1%0.133%
5/13/2025Russell Investments Group Ltd.218,028$320K0.0%-48.1%0.135%
5/12/2025Nuveen LLC471,361$693K0.0%N/A0.291%
5/12/2025Invesco Ltd.275,253$405K0.0%-47.3%0.170%
5/12/2025Connor Clark & Lunn Investment Management Ltd.1,488,044$2.19M0.0%+335.8%0.920%
5/9/2025Charles Schwab Investment Management Inc.2,647,015$3.89M0.0%+33.5%1.636%
5/9/2025Vanguard Group Inc.15,696,161$23.07M0.0%-19.7%9.700%
5/8/2025XTX Topco Ltd552,613$812K0.0%+1,104.4%0.342%
5/8/2025GSA Capital Partners LLP524,676$771K0.1%+3,683.6%0.324%
5/8/2025Federated Hermes Inc.1,305,362$1.92M0.0%+252.3%0.807%
5/6/2025Pacer Advisors Inc.1,789,098$2.63M0.0%-84.7%1.106%
5/6/2025KLP Kapitalforvaltning AS198,400$292K0.0%+719.8%0.123%
5/6/2025Y Intercept Hong Kong Ltd39,782$58K0.0%+162.6%0.025%
5/5/2025Allianz Asset Management GmbH293,100$431K0.0%+411.5%0.181%
5/2/2025Victory Capital Management Inc.18,714$28K0.0%-91.2%0.012%
5/1/2025CWM LLC57,001$84K0.0%+801.1%0.035%
4/30/2025Cerity Partners LLC96,478$142K0.0%N/A0.060%
4/30/2025Alps Advisors Inc.116,860$172K0.0%-9.7%0.072%
4/29/2025Bank of New York Mellon Corp499,613$734K0.0%-48.9%0.309%
4/28/2025Principal Financial Group Inc.92,382$136K0.0%-87.9%0.057%
4/17/2025Exchange Traded Concepts LLC178,523$262K0.0%+173.5%0.110%
4/15/2025Simplicity Wealth LLC30,324$45K0.0%N/A0.019%
4/8/2025Rhumbline Advisers208,043$306K0.0%-40.2%0.129%
3/17/2025Wealth Enhancement Advisory Services LLC13,235$59K0.0%N/A0.008%
2/28/2025Universal Beteiligungs und Servicegesellschaft mbH426,138$1.89M0.0%N/A0.266%
2/19/2025Public Employees Retirement System of Ohio100,172$444K0.0%-8.8%0.063%
2/17/2025UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC286,990$1.27M0.0%+6.4%0.179%
2/17/2025Two Sigma Advisers LP1,234,000$5.47M0.0%-2.1%0.771%
2/17/2025Two Sigma Investments LP863,428$3.83M0.0%-3.1%0.540%
2/17/2025State of Wyoming41,858$185K0.0%+37.8%0.026%
2/17/2025Stonepine Capital Management LLC648,785$2.87M2.3%-35.1%0.405%
2/17/2025Rafferty Asset Management LLC236,732$1.05M0.0%-40.3%0.148%
2/17/2025Point72 Asia Singapore Pte. Ltd.8,022$36K0.0%N/A0.005%
2/17/2025ProShare Advisors LLC50,204$222K0.0%+28.9%0.031%
2/17/2025Parkman Healthcare Partners LLC408,535$1.81M0.2%-10.3%0.255%
2/17/2025Man Group plc354,824$1.57M0.0%-60.3%0.222%
2/17/2025Nomura Holdings Inc.23,852$106K0.0%N/A0.015%
2/17/2025OMERS ADMINISTRATION Corp215,110$953K0.0%-32.9%0.134%
2/17/2025Jacobs Levy Equity Management Inc.3,623,026$16.05M0.1%-15.1%2.264%
2/17/2025Graham Capital Management L.P.63,032$279K0.0%-41.6%0.039%
2/17/2025Deutsche Bank AG1,567,535$6.94M0.0%+47.4%0.980%
2/17/2025Caption Management LLC50,000$222K0.0%N/A0.031%
2/17/2025Bridgeway Capital Management LLC31,000$137K0.0%-90.0%0.019%
2/17/2025Bank of America Corp DE678,145$3.00M0.0%+61.6%0.424%
2/17/2025BNP Paribas Financial Markets122,640$543K0.0%-20.7%0.077%
2/17/2025Ameriprise Financial Inc.565,618$2.51M0.0%-5.4%0.353%
2/17/2025AXA S.A.288,471$1.28M0.0%N/A0.180%
(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, 221 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), Kynam Capital Management LP ($14.15M), and Hotchkis & Wiley Capital Management LLC ($13.05M).Learn more on Ironwood Pharmaceuticals' institutional investors.

Which institutional investors have been buying Ironwood Pharmaceuticals' stock?

Of the 183 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 ($14.78M), AQR Capital Management LLC ($5.98M), Acadian Asset Management LLC ($5.54M), Vanguard Group Inc. ($4.67M), Pacer Advisors Inc. ($4.52M), Millennium Management LLC ($4.14M), and Jacobs Levy Equity Management Inc. ($3.60M).

How much institutional buying is happening at Ironwood Pharmaceuticals?

Institutional investors have bought a total of 55,155,380 shares in the last 24 months. This purchase volume represents approximately $99.22M in transactions.

Which of Ironwood Pharmaceuticals' major shareholders have been selling company stock?

Of the 61 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), Vanguard Group Inc. ($6.34M), Jacobs Levy Equity Management Inc. ($2.78M), LSV Asset Management ($2.22M), Jane Street Group LLC ($1.76M), Principal Financial Group Inc. ($792.17K), and Hodges Capital Management Inc. ($693.50K).

How much institutional selling is happening at Ironwood Pharmaceuticals?

Institutional investors have sold a total of 30,703,075 shares in the last 24 months. This volume of shares sold represents approximately $68.59M in transactions.


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This page (NASDAQ:IRWD) was last updated on 9/26/2025 by MarketBeat.com Staff
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