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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, Q4 2023

Institutional positions in Ironwood Pharmaceuticals Inc as of Dec 31, 2023. 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
251
+5 vs. Q3 2023
Shares held
165.0M
+5.37M (+3.4%) vs. Q3 2023
Total value
$1.89B
+$324.4M (+20.8%) vs. Q3 2023
New holders
31
87 more added
Sold out
26
94 more reduced

3 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2023: 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 holdersQ4 2023: 251 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 heldQ4 2023: $1.89B
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, Q4 2023

Shares, value and share of portfolio for each institution holding Ironwood Pharmaceuticals Inc; share changes are against Q3 2023.

Institutions holding IRWD in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Alps Advisors Inc107,302$1.23M0.01%−7,837−6.8%Reduced
AXA S.A.106,843$1.22M0.00%+80,043+298.7%Added
Kennedy Capital Management, Inc.105,898$1.21M0.03%+105,898New
Fisher Asset Management, LLC103,131$1.18M0.00%+200+0.2%Added
Massachusetts Financial Services Co98,677$1.13M0.00%+98,677New
Skandinaviska Enskilda Banken AB (publ)98,300$1.12M0.01%−51,600−34.4%Reduced
FMR LLC97,849$1.12M0.00%+81,789+509.3%Added
Wellington Management Group LLP97,418$1.11M0.00%+97,418New
ClariVest Asset Management LLC96,498$1.10M0.06%−83−0.1%Reduced
Creative Planning90,456$1.03M0.00%+22,377+32.9%Added
Mirae Asset Global Investments Co., Ltd.90,161$1.03M0.00%−899−1.0%Reduced
Ensign Peak Advisors, Inc89,700$1.03M0.00%00.0%Unchanged
Squarepoint Ops LLC87,373$999.5K0.00%−422,834−82.9%Reduced
State of Alaska, Department of Revenue84,525$966.0K0.01%−963−1.1%Reduced
AQR Capital Management LLC81,801$935.8K0.00%−121,768−59.8%Reduced
Price T Rowe Associates Inc80,584$922.0K0.00%+8,477+11.8%Added
Qube Research & Technologies Ltd79,168$905.7K0.00%+79,168New
State of Tennessee, Treasury Department76,501$875.2K0.00%−1,261−1.6%Reduced
American International Group, Inc.75,357$862.1K0.00%−624−0.8%Reduced
Schonfeld Strategic Advisors LLC72,976$834.8K0.01%+40,576+125.2%Added
Manufacturers Life Insurance Company, The71,848$821.9K0.00%−310−0.4%Reduced
MetLife Investment Management71,570$818.8K0.01%00.0%Unchanged
SummerHaven Investment Management, LLC68,745$786.4K0.50%+980+1.4%Added
Louisiana State Employees Retirement System68,700$785.9K0.02%−1,200−1.7%Reduced
Janus Henderson Group PLC66,973$765.8K0.00%−109,515−62.1%Reduced
Duality Advisers, LP64,842$741.8K0.08%−8,966−12.1%Reduced
Hussman Strategic Advisors, Inc.63,000$720.7K0.16%−61,000−49.2%Reduced
Gotham Asset Management, LLC62,051$709.9K0.01%+40,672+190.2%Added
Oak Associates, Ltd61,384$702.2K0.05%00.0%Unchanged
Old West Investment Management, LLC56,921$651.2K0.33%+761+1.4%Added
Yousif Capital Management, LLC56,398$645.2K0.01%−305−0.5%Reduced
Comerica Bank55,404$633.8K0.00%−89−0.2%Reduced
Amalgamated Bank53,769$615.0K0.00%−3,834−6.7%Reduced
HighTower Advisors, LLC52,339$601.0K0.00%+1,849+3.7%Added
New Vernon Capital Holdings II LLC52,443$599.9K0.32%+20,738+65.4%Added
Maryland State Retirement & Pension System49,935$571.3K0.01%−639−1.3%Reduced
Intrinsic Value Partners, LLC49,455$565.8K0.66%−900−1.8%Reduced
Brevan Howard Capital Management LP48,628$556.3K0.06%+34,030+233.1%Added
Allspring Global Investments Holdings, LLC48,616$556.2K0.00%+42,091+645.1%Added
Handelsbanken Fonder AB47,855$547.0K0.00%+18,900+65.3%Added
Cipher Capital LP47,548$543.9K0.18%+29,420+162.3%Added
XTX Topco Ltd46,445$531.3K0.12%+30,432+190.0%Added
Royal Bank of Canada44,828$513.0K0.00%+22,210+98.2%Added
Wells Fargo & Company44,430$508.3K0.00%−150,708−77.2%Reduced
State Board of Administration of Florida Retirement System44,394$507.9K0.00%00.0%Unchanged
Teachers Retirement System of the State of Kentucky44,349$507.0K0.00%00.0%Unchanged
EMC Capital Management43,315$496.0K0.33%00.0%Unchanged
Point72 Middle East FZE42,902$490.8K0.03%−29,408−40.7%Reduced
Prairiewood Capital, LLC41,081$470.0K0.24%00.0%Unchanged
Oregon Public Employees Retirement Fund40,116$458.9K0.01%−700−1.7%Reduced
US Bancorp39,840$455.8K0.00%+39,285+7,078.4%Added
Arizona State Retirement System39,255$449.1K0.00%−553−1.4%Reduced
Grimes & Company, Inc.39,140$447.8K0.01%−911−2.3%Reduced
New York State Teachers Retirement System38,500$440.0K0.00%−13,940−26.6%Reduced
E Fund Management Co., Ltd.37,687$431.1K0.03%−7,209−16.1%Reduced
Broderick Brian C36,000$411.8K0.10%00.0%Unchanged
ProShare Advisors LLC35,966$411.5K0.00%+4,703+15.0%Added
Corton Capital Inc.34,691$396.9K0.13%+18,513+114.4%Added
Jump Financial, LLC33,963$388.5K0.01%+33,963New
CWM Advisors, LLC33,777$386.4K0.04%+2,108+6.7%Added
Zurcher Kantonalbank (Zurich Cantonalbank)32,721$374.3K0.00%+5,318+19.4%Added
Teacher Retirement System of Texas32,469$371.0K0.00%−7,172−18.1%Reduced
Shell Asset Management Co31,352$359.0K0.02%−9,478−23.2%Reduced
Captrust Financial Advisors29,763$340.5K0.00%+29,763New
Commonwealth of Pennsylvania Public School Empls Retrmt Sys29,648$339.2K0.00%−62,148−67.7%Reduced
HSBC Holdings PLC29,657$338.1K0.00%−227,144−88.5%Reduced
Franklin Resources Inc28,578$326.9K0.00%+8,822+44.7%Added
Virtus ETF Advisers LLC28,489$325.9K0.21%+951+3.5%Added
Twinbeech Capital LP28,159$322.1K0.01%+28,159New
MQS Management LLC27,908$319.3K0.18%−1,158−4.0%Reduced
Gerber, LLC27,600$315.7K0.28%+27,600New
Los Angeles Capital Management LLC27,537$315.0K0.00%−22,978−45.5%Reduced
Robeco Institutional Asset Management B.V.27,336$312.7K0.00%00.0%Unchanged
Mariner, LLC26,936$308.1K0.00%+2,682+11.1%Added
NinePointTwo Capital26,046$297.0K0.12%00.0%Unchanged
Public Employees Retirement Association of Colorado24,883$285.0K0.00%00.0%Unchanged
Quent Capital, LLC24,500$280.3K0.04%00.0%Unchanged
Mutual of America Capital Management LLC24,048$275.1K0.00%−16−0.1%Reduced
Axq Capital, LP23,100$264.3K0.07%+3,100+15.5%Added
O'Shaughnessy Asset Management, LLC22,241$254.4K0.00%−13,397−37.6%Reduced
Balyasny Asset Management LLC21,660$247.8K0.00%−8,248−27.6%Reduced
Aigen Investment Management, LP21,270$243.3K0.04%+7,833+58.3%Added
Virtus Investment Advisers, Inc.21,173$242.2K0.18%00.0%Unchanged
Amundi18,892$236.3K0.00%+1,600+9.3%Added
Everence Capital Management Inc20,430$234.0K0.02%00.0%Unchanged
Vident Advisory, LLC19,619$224.4K0.01%+3,743+23.6%Added
China Universal Asset Management Co., Ltd.18,061$206.6K0.04%+14,064+351.9%Added
Quantedge Capital Pte Ltd17,400$199.1K0.10%−162,500−90.3%Reduced
Pictet Asset Management Holding SA16,495$188.7K0.00%00.0%Unchanged
Lazard Asset Management LLC15,402$176.0K0.00%+11+0.1%Added
Raymond James Financial Services Advisors, Inc.15,330$175.4K0.00%+1,483+10.7%Added
Oracle Alpha Inc.15,175$173.6K0.22%+15,175New
Xponance, Inc.14,156$161.9K0.00%−755−5.1%Reduced
GW Henssler & Associates Ltd13,821$158.1K0.01%−5,500−28.5%Reduced
Ameritas Investment Partners, Inc.13,773$157.6K0.01%00.0%Unchanged
Bank of Montreal13,583$156.3K0.00%+2,737+25.2%Added
Tokio Marine Asset Management Co Ltd12,800$146.4K0.01%00.0%Unchanged
Vestcor Inc11,627$133.0K0.00%00.0%Unchanged
State of Wyoming11,403$130.4K0.02%−8,467−42.6%Reduced
Hennion & Walsh Asset Management, Inc.11,274$129.0K0.01%−242−2.1%Reduced