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Ironwood Pharmaceuticals Inc

IRWD
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001446847

In the last 90 days, Ironwood Pharmaceuticals Inc insiders filed 0 open-market purchases and 1 sale; 212 institutions reported holding it in 13F filings for Q2 2026, worth $675.8M in total; no superinvestor holds it.

13F holders, Q2 2025

Institutional positions in Ironwood Pharmaceuticals Inc as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
155
−45 vs. Q1 2025
Shares held
146.2M
−9.26M (−6.0%) vs. Q1 2025
Total value
$104.9M
−$123.6M (−54.1%) vs. Q1 2025
New holders
19
60 more added
Sold out
64
51 more reduced

Compare with Q1 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting IRWD on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2025: 155 institutions
Q1 2021: 210 institutionsQ2 2021: 209 institutionsQ3 2021: 229 institutionsQ4 2021: 212 institutionsQ1 2022: 221 institutionsQ2 2022: 240 institutionsQ3 2022: 245 institutionsQ4 2022: 250 institutionsQ1 2023: 255 institutionsQ2 2023: 252 institutionsQ3 2023: 249 institutionsQ4 2023: 251 institutionsQ1 2024: 261 institutionsQ2 2024: 227 institutionsQ3 2024: 221 institutionsQ4 2024: 223 institutionsQ1 2025: 200 institutionsQ2 2025: 155 institutionsQ3 2025: 166 institutionsQ4 2025: 199 institutionsQ1 2026: 227 institutionsQ2 2026: 212 institutions
Value heldQ2 2025: $104.9M
Q1 2021: $1.91BQ2 2021: $2.25BQ3 2021: $2.32BQ4 2021: $2.00BQ1 2022: $2.09BQ2 2022: $2.02BQ3 2022: $1.76BQ4 2022: $2.08BQ1 2023: $1.74BQ2 2023: $1.77BQ3 2023: $1.56BQ4 2023: $1.89BQ1 2024: $1.50BQ2 2024: $1.12BQ3 2024: $673.7MQ4 2024: $727.5MQ1 2025: $228.5MQ2 2025: $104.9MQ3 2025: $194.9MQ4 2025: $520.2MQ1 2026: $566.8MQ2 2026: $675.8M
Institutions holding IRWD and their total value by quarter
QuarterHoldersValue
Q2 2026212$675.8M
Q1 2026227$566.8M
Q4 2025199$520.2M
Q3 2025166$194.9M
Q2 2025155$104.9M
Q1 2025200$228.5M
Q4 2024223$727.5M
Q3 2024221$673.7M
Q2 2024227$1.12B
Q1 2024261$1.50B
Q4 2023251$1.89B
Q3 2023249$1.56B
Q2 2023252$1.77B
Q1 2023255$1.74B
Q4 2022250$2.08B
Q3 2022245$1.76B
Q2 2022240$2.02B
Q1 2022221$2.09B
Q4 2021212$2.00B
Q3 2021229$2.32B
Q2 2021209$2.25B
Q1 2021210$1.91B

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Ironwood Pharmaceuticals Inc; share changes are against Q1 2025.

Institutions holding IRWD in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Simplex Trading, LLC776$00.00%−1,703−68.7%Reduced
Daiwa Securities Group Inc.573$00.00%00.0%Unchanged
Covestor Ltd94$00.00%+77+452.9%Added
National Bank of Canada1$10.00%00.0%Unchanged
Steward Partners Investment Advisory, LLC17$120.00%00.0%Unchanged
Advisor Group Holdings, Inc.23$170.00%−769−97.1%Reduced
Ronald Blue Trust, Inc.34$240.00%00.0%Unchanged
Bell Investment Advisors, Inc48$350.00%00.0%Unchanged
SBI Securities Co., Ltd.70$500.00%+7+11.1%Added
Clean Yield Group85$610.00%00.0%Unchanged
Optiver Holding B.V.164$1180.00%00.0%Unchanged
Allworth Financial LP269$1930.00%+269New
Sterling Capital Management LLC702$5030.00%−1,027−59.4%Reduced
True Wealth Design, LLC1,018$7310.00%+897+741.3%Added
Clearstead Advisors, LLC1,515$1.09K0.00%+1,515New
UMA Financial Services, Inc.1,669$1.20K0.00%+1,669New
WealthCollab, LLC1,970$1.41K0.00%+1,970New
Nisa Investment Advisors, LLC2,051$1.47K0.00%−367−15.2%Reduced
IFP Advisors, Inc3,406$2.44K0.00%+2,979+697.7%Added
GF Fund Management Co. Ltd.3,971$2.85K0.00%00.0%Unchanged
Amalgamated Bank4,677$3.00K0.00%00.0%Unchanged
Mirae Asset Global Investments Co., Ltd.6,251$4.48K0.00%+752+13.7%Added
EMC Capital Management9,866$7.00K0.00%−14,027−58.7%Reduced
Fisher Asset Management, LLC10,000$7.17K0.00%+10,000New
California State Teachers Retirement System10,251$7.35K0.00%−123,886−92.4%Reduced
US Bancorp10,383$7.45K0.00%−1,025−9.0%Reduced
Mackenzie Financial Corp10,460$7.50K0.00%00.0%Unchanged
Royal Bank of Canada10,226$8.00K0.00%−28,999−73.9%Reduced
NorthCrest Asset Manangement, LLC11,121$8.52K0.00%+11,121New
EverSource Wealth Advisors, LLC12,021$8.62K0.00%+11,388+1,799.1%Added
HSBC Holdings PLC12,351$8.69K0.00%−8,427−40.6%Reduced
Xponance, Inc.12,339$8.85K0.00%+846+7.4%Added
Diversified Trust Co12,574$9.02K0.00%00.0%Unchanged
Farallon Capital Management, L.L.C.13,000$9.32K0.00%00.0%Unchanged
Catalyst Funds Management Pty Ltd13,340$9.57K0.00%−335,500−96.2%Reduced
Public Employees Retirement System of Ohio13,469$9.66K0.00%+7,746+135.3%Added
Ameritas Investment Partners, Inc.13,773$9.88K0.00%00.0%Unchanged
Essential Partners LLC14,459$10.4K0.00%+14,459New
First Affirmative Financial Network14,930$10.7K0.01%+3,853+34.8%Added
HighTower Advisors, LLC15,000$10.8K0.00%+15,000New
Raymond James Financial Inc15,295$11.0K0.00%00.0%Unchanged
Integrated Wealth Concepts LLC15,889$11.4K0.00%+15,889New
Balyasny Asset Management LLC17,743$12.7K0.00%−292,517−94.3%Reduced
Broderick Brian C18,000$12.9K0.00%−15,000−45.5%Reduced
Legal & General Group Plc18,359$13.2K0.00%−231,913−92.7%Reduced
Victory Capital Management Inc18,619$13.4K0.00%−95−0.5%Reduced
BNP Paribas Arbitrage, SA18,737$13.4K0.00%−355,662−95.0%Reduced
Ariadne Wealth Management, LP12,889$14.0K0.01%+12,889New
CIBC World Markets Corp19,714$14.1K0.00%−11,679−37.2%Reduced
Prudential Financial Inc20,635$14.7K0.00%+8,854+75.2%Added
UBS Asset Management Americas Inc21,643$15.5K0.00%−265,347−92.5%Reduced
Franklin Resources Inc23,251$16.7K0.00%−282,760−92.4%Reduced
Prairiewood Capital, LLC24,691$17.7K0.01%−9,033−26.8%Reduced
Shell Asset Management Co26,689$19.0K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)28,002$20.1K0.00%+20,253+261.4%Added
Jain Global LLC28,869$20.7K0.00%−54,136−65.2%Reduced
Police & Firemen's Retirement System of New Jersey29,313$21.0K0.00%00.0%Unchanged
Brighton Jones LLC30,425$21.8K0.00%+30,425New
Neuberger Berman Group LLC30,534$21.9K0.00%+19,566+178.4%Added
Dynamic Technology Lab Private Ltd31,500$23.0K0.00%−7,110−18.4%Reduced
China Universal Asset Management Co., Ltd.32,501$23.3K0.00%+402+1.3%Added
Mercer Global Advisors Inc33,415$24.0K0.00%+33,415New
Colony Group, LLC34,547$24.8K0.00%+34,547New
Oversea-Chinese Banking CORP Ltd35,016$25.1K0.00%+35,016New
Capstone Investment Advisors, LLC36,268$26.0K0.00%−3,732−9.3%Reduced
R Squared Ltd38,765$27.8K0.02%+28,735+286.5%Added
ProShare Advisors LLC38,852$27.9K0.00%+1,007+2.7%Added
Teachers Retirement System of the State of Kentucky39,600$28.0K0.00%00.0%Unchanged
Buckingham Strategic Partners39,743$28.5K0.00%+29,409+284.6%Added
Grimes & Company, Inc.40,994$29.4K0.00%00.0%Unchanged
Merit Financial Group, LLC41,647$29.9K0.00%+26,325+171.8%Added
New York State Common Retirement Fund41,869$30.0K0.00%00.0%Unchanged
State Board of Administration of Florida Retirement System44,394$31.8K0.00%−248,051−84.8%Reduced
Captrust Financial Advisors44,447$31.9K0.00%+44,447New
Voya Investment Management LLC46,075$33.0K0.00%+6,104+15.3%Added
Panagora Asset Management Inc46,569$33.4K0.00%00.0%Unchanged
Ameriprise Financial Inc48,127$34.5K0.00%−1,494−3.0%Reduced
JustInvest LLC50,677$36.3K0.00%+50,677New
Citigroup Inc66,136$47.4K0.00%−44,030−40.0%Reduced
Engineers Gate Manager LP73,354$52.6K0.00%+57,720+369.2%Added
Bridgeway Capital Management, LLC75,000$53.8K0.00%+44,000+141.9%Added
STRS Ohio76,600$54.9K0.00%00.0%Unchanged
Tudor Investment Corp Et Al79,455$57.0K0.00%−2,340−2.9%Reduced
Pallas Capital Advisors LLC79,512$57.0K0.00%+65,172+454.5%Added
Squarepoint Ops LLC79,867$57.3K0.00%+79,867New
Mirae Asset Global ETFs Holdings Ltd.87,435$62.7K0.00%+3,339+4.0%Added
Wells Fargo & Company87,496$62.8K0.00%+3,245+3.9%Added
Intech Investment Management LLC87,787$63.0K0.00%00.0%Unchanged
Dimensional Fund Advisors LP90,373$64.8K0.00%−280.0%Reduced
Creative Planning93,680$67.2K0.00%+9,048+10.7%Added
Millennium Management LLC96,332$69.1K0.00%−6,263,350−98.5%Reduced
Cercano Management LLC101,378$72.7K0.00%00.0%Unchanged
Siren, L.L.C.110,532$79.6K0.00%00.0%Unchanged
JPMorgan Chase & Co113,284$81.2K0.00%−1,589,349−93.3%Reduced
Algert Global LLC122,580$87.9K0.00%+122,580New
Wealth Enhancement Advisory Services, LLC125,460$96.1K0.00%+101,574+425.2%Added
Macquarie Group Ltd136,200$98.0K0.00%−33,250−19.6%Reduced
Mariner, LLC161,574$115.9K0.00%−588,426−78.5%Reduced
Price T Rowe Associates Inc172,521$123.0K0.00%+1,243+0.7%Added
Hennion & Walsh Asset Management, Inc.172,579$123.8K0.00%−7,973−4.4%Reduced