IRONWOOD PHARMACEUTICALS INC (IRWD) Institutional Ownership Changes & 13F Activity

IRONWOOD PHARMACEUTICALS INC (IRWD). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Charles Schwab Investment Management Inc, Susquehanna International Group, Llp, Two Sigma Investments, Lp, Qube Research & Technologies Ltd, and Wells Fargo & Company/Mn.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Integrated Wealth Concepts LlcSell-12,709-44.5%15,863$66.78KQ2 2026Sep 09, 2026
Manufacturers Life Insurance Company, TheSell-85-0.2%42,920$180.69KQ2 2026Sep 09, 2026
Citadel Advisors LlcBuy+384,127+324.8%502,403$2.12MQ2 2026Sep 02, 2026
California State Teachers Retirement SystemSell-6,418-74.1%2,241$9.44KQ2 2026Aug 24, 2026
Mercer Global Advisors IncBuy+11,080+9.6%126,160$531.13KQ2 2026Aug 19, 2026
Public Employees Retirement System Of OhioSell-7,105-10.6%59,925$252.28KQ2 2026Aug 17, 2026
Charles Schwab Investment Management IncSell-1,435,615-30.3%3,302,242$13.90MQ2 2026Aug 14, 2026
Susquehanna International Group, LlpSell-1,342,920-91.2%129,237$544.09KQ2 2026Aug 14, 2026
Two Sigma Investments, LpSell-1,292,187-22.1%4,556,089$19.18MQ2 2026Aug 14, 2026
Qube Research & Technologies LtdSell-1,242,096-78.1%347,985$1.47MQ2 2026Aug 14, 2026
Wells Fargo & Company/MnBuy+1,147,348+1949.6%1,206,198$5.08MQ2 2026Aug 14, 2026
Armistice Capital, LlcSell-1,096,000-7.3%13,932,000$58.65MQ2 2026Aug 14, 2026
Aqr Capital Management LlcSell-1,069,159-14.2%6,465,921$27.22MQ2 2026Aug 14, 2026
Goldman Sachs Group IncBuy+623,174+23.2%3,313,808$13.95MQ2 2026Aug 14, 2026
Hrt Financial LpBuy+577,337577,337$2.43MQ2 2026Aug 14, 2026
Jane Street Group, LlcSell-492,547-79.2%129,700$546.04KQ2 2026Aug 14, 2026
Integrated Quantitative Investments LlcSell-458,415-83.0%93,689$394.43KQ2 2026Aug 14, 2026
Jacobs Levy Equity Management, IncBuy+433,487+11.9%4,065,964$17.12MQ2 2026Aug 14, 2026
Invesco Ltd.Buy+403,209403,209$1.70MQ2 2026Aug 14, 2026
Sei Investments CoSell-283,131-38.1%459,417$1.93MQ2 2026Aug 14, 2026
Lazard Asset Management LlcSell-262,545-90.5%27,644$116.38KQ2 2026Aug 14, 2026
State Of Wisconsin Investment BoardBuy+180,356+30.2%778,515$3.28MQ2 2026Aug 14, 2026
Cerity Partners LlcSell-160,351-43.5%208,019$875.76KQ2 2026Aug 14, 2026
Man Group PlcSell-148,747-27.5%392,117$1.65MQ2 2026Aug 14, 2026
Ameriprise Financial IncBuy+99,52699,526$419.00KQ2 2026Aug 14, 2026
Hsbc Holdings PlcBuy+96,394+324.5%126,100$541.60KQ2 2026Aug 14, 2026
D. E. Shaw & Co., Inc.Buy+74,969+156.4%122,907$517.44KQ2 2026Aug 14, 2026
Rafferty Asset Management, LlcSell-63,745-29.4%152,878$643.62KQ2 2026Aug 14, 2026
Bridgeway Capital Management, LlcSell-50,700-11.5%389,793$1.64MQ2 2026Aug 14, 2026
Raymond James Financial IncSell-38,870-5.1%725,085$3.05MQ2 2026Aug 14, 2026
Showing 30 of 215

Frequently asked questions about IRWD activity

  • Which institutional owners are buying IRWD?

    Institutional owners buying IRWD include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in IRWD activity?

    "Buy" means an investor increased their reported position in IRWD compared to the prior reporting period. This reflects growing exposure to IRONWOOD PHARMACEUTICALS INC (IRWD) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in IRWD increasing?

    Institutional interest in IRWD can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.