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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, Q1 2022

Institutional positions in Ironwood Pharmaceuticals Inc as of Mar 31, 2022. 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
221
+10 vs. Q4 2021
Shares held
166.6M
−5.28M (−3.1%) vs. Q4 2021
Total value
$2.09B
+$92.2M (+4.6%) vs. Q4 2021
New holders
39
67 more added
Sold out
29
78 more reduced

1 institution that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2021: 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 holdersQ1 2022: 221 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 heldQ1 2022: $2.09B
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, Q1 2022

Shares, value and share of portfolio for each institution holding Ironwood Pharmaceuticals Inc; share changes are against Q4 2021.

Institutions holding IRWD in Q1 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Northern Trust Corp1,621,340$20.4M0.00%−62,030−3.7%Reduced
New York State Common Retirement Fund1,821,456$22.9M0.02%+9,150+0.5%Added
Jupiter Asset Management Ltd1,876,727$23.6M0.28%+155,771+9.1%Added
Nuveen Asset Management, LLC2,219,573$27.4M0.01%+115,934+5.5%Added
Morgan Stanley2,283,824$28.7M0.00%+1,230,402+116.8%Added
Goldman Sachs Group Inc2,617,911$32.9M0.01%−693,230−20.9%Reduced
Geode Capital Management, LLC2,758,736$34.7M0.00%−4,832−0.2%Reduced
Norges Bank3,051,721$38.4M0.01%+35,393+1.2%Added
Dimensional Fund Advisors LP3,074,530$38.7M0.01%−2,459−0.1%Reduced
Renaissance Technologies LLC3,123,053$39.3M0.05%+443,800+16.6%Added
Credit Suisse AG4,465,048$56.2M0.05%−161,535−3.5%Reduced
Putnam Investments LLC4,791,196$60.3M0.09%+719,934+17.7%Added
LSV Asset Management7,407,330$93.2M0.17%−100,076−1.3%Reduced
State Street Corp8,297,067$104.4M0.01%+418,756+5.3%Added
Westfield Capital Management Co LP8,534,416$107.4M0.69%+388,742+4.8%Added
Vanguard Group Inc13,356,328$168.0M0.00%−131,434−1.0%Reduced
Brown Capital Management LLC14,228,999$179.0M1.78%−2,028,900−12.5%Reduced
BlackRock Inc.14,536,759$182.9M0.00%+167,869+1.2%Added
Wellington Management Group LLP15,181,647$191.0M0.03%−2,118,658−12.2%Reduced
Sarissa Capital Management LP16,390,000$206.2M19.49%00.0%Unchanged
Aaron Wealth Advisors3,648––+3,648New
Camber Capital Management LP0$00.00%−3,000,000−100.0%Sold out
Canada Pension Plan Investment Board0$00.00%−296,370−100.0%Sold out
Arrowstreet Capital, Limited Partnership0$00.00%−275,640−100.0%Sold out
Assenagon Asset Management S.A.0$00.00%−193,514−100.0%Sold out
Old Mission Capital LLC0$00.00%−179,706−100.0%Sold out
Toronto Dominion Bank0$00.00%−137,618−100.0%Sold out
Twinbeech Capital LP0$00.00%−104,627−100.0%Sold out
Engineers Gate Manager LP0$00.00%−103,527−100.0%Sold out
Jackson Creek Investment Advisors LLC0$00.00%−93,652−100.0%Sold out
First Quadrant L P0$00.00%−50,100−100.0%Sold out
Summit Global Investments0$00.00%−41,742−100.0%Sold out
Schonfeld Strategic Advisors LLC0$00.00%−40,200−100.0%Sold out
Alps Advisors Inc0$00.00%−31,115−100.0%Sold out
Panagora Asset Management Inc0$00.00%−26,528−100.0%Sold out
PDT Partners, LLC0$00.00%−25,675−100.0%Sold out
Graham Capital Management, L.P.0$00.00%−24,724−100.0%Sold out
Watershed Asset Management, L.L.C.0$00.00%−23,535−100.0%Sold out
Zebra Capital Management LLC0$00.00%−23,536−100.0%Sold out
Campbell & CO Investment Adviser LLC0$00.00%−18,816−100.0%Sold out
Maven Securities LTD0$00.00%−15,000−100.0%Sold out
Spire Wealth Management0$00.00%−15,051−100.0%Sold out
Aigen Investment Management, LP0$00.00%−13,458−100.0%Sold out
Pinnacle Wealth Planning Services, Inc.0$00.00%−10,494−100.0%Sold out
Signet Financial Management, LLC0$00.00%−2,640−100.0%Sold out
Aquatic Capital Management LLC0$00.00%−800−100.0%Sold out
Smith Group Asset Management, LLC0$00.00%−230−100.0%Sold out
Snowden Capital Advisors LLC0$00.00%−200−100.0%Sold out
Massmutual Trust Co FSB0$00.00%−59−100.0%Sold out
Amplius Wealth Advisors, LLC0$00.00%−100−100.0%Sold out
Bell Investment Advisors, Inc––––Not filed