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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 2023

Institutional positions in Ironwood Pharmaceuticals Inc as of Mar 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
255
+7 vs. Q4 2022
Shares held
164.6M
−2.86M (−1.7%) vs. Q4 2022
Total value
$1.74B
−$331.6M (−16.0%) vs. Q4 2022
New holders
27
107 more added
Sold out
20
79 more reduced

2 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2022: 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 2023: 255 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 2023: $1.74B
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 2023

Shares, value and share of portfolio for each institution holding Ironwood Pharmaceuticals Inc; share changes are against Q4 2022.

Institutions holding IRWD in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
O'Shaughnessy Asset Management, LLC132,592$1.39M0.02%+5,154+4.0%Added
Thrivent Financial for Lutherans132,254$1.39M0.00%−4,636−3.4%Reduced
State of Wisconsin Investment Board131,486$1.38M0.00%−14,915−10.2%Reduced
Profund Advisors LLC121,495$1.28M0.08%+103,109+560.8%Added
Texas Permanent School Fund119,681$1.26M0.01%+29,962+33.4%Added
ClariVest Asset Management LLC116,154$1.22M0.05%−114−0.1%Reduced
Voya Investment Management LLC112,376$1.18M0.00%−485−0.4%Reduced
Gotham Asset Management, LLC111,859$1.18M0.03%+36,537+48.5%Added
Artal Group S.A.110,532$1.16M0.07%00.0%Unchanged
Gsa Capital Partners LLP103,258$1.09M0.11%+42,309+69.4%Added
Schroder Investment Management Group98,445$1.04M0.00%−247,764−71.6%Reduced
Jump Financial, LLC94,173$990.7K0.04%−24,791−20.8%Reduced
Massachusetts Financial Services Co91,973$967.6K0.00%+91,973New
State of Alaska, Department of Revenue91,387$961.0K0.01%−1,541−1.7%Reduced
Ensign Peak Advisors, Inc89,200$938.4K0.00%00.0%Unchanged
Mirae Asset Global Investments Co., Ltd.86,699$912.1K0.00%+23,531+37.3%Added
Engineers Gate Manager LP80,850$850.5K0.04%+54,853+211.0%Added
Ritholtz Wealth Management79,672$838.1K0.04%+8,508+12.0%Added
State of Tennessee, Treasury Department78,896$830.0K0.00%−23,192−22.7%Reduced
Fisher Asset Management, LLC76,418$803.9K0.00%+1,171+1.6%Added
Old West Investment Management, LLC75,219$791.3K0.43%+2,061+2.8%Added
CWM Advisors, LLC74,819$787.1K0.10%+55,958+296.7%Added
American International Group, Inc.74,413$782.8K0.01%+355+0.5%Added
MetLife Investment Management70,128$737.7K0.01%00.0%Unchanged
Janus Henderson Group PLC67,051$705.7K0.00%+43,245+181.7%Added
Creative Planning66,979$704.6K0.00%+9,632+16.8%Added
Yousif Capital Management, LLC64,797$681.7K0.01%−15,530−19.3%Reduced
Skandinaviska Enskilda Banken AB (publ)62,600$659.0K0.00%+62,600New
Louisiana State Employees Retirement System62,200$654.3K0.02%−1,200−1.9%Reduced
Affinity Investment Advisors, LLC61,894$651.1K0.35%00.0%Unchanged
Amalgamated Bank61,500$647.0K0.01%−4,161−6.3%Reduced
New York State Teachers Retirement System60,777$639.0K0.00%+4,258+7.5%Added
International Biotechnology Trust PLC60,000$631.2K0.18%00.0%Unchanged
Price T Rowe Associates Inc59,794$630.0K0.00%−32,901−35.5%Reduced
Manufacturers Life Insurance Company, The54,823$576.7K0.00%+371+0.7%Added
Maryland State Retirement & Pension System53,743$565.4K0.01%−1,372−2.5%Reduced
Dynamic Technology Lab Private Ltd52,985$557.0K0.05%+52,985New
Intrinsic Value Partners, LLC51,605$542.9K0.73%−300−0.6%Reduced
Quantbot Technologies LP44,300$466.0K0.03%+44,300New
EMC Capital Management43,315$456.0K0.38%00.0%Unchanged
Oregon Public Employees Retirement Fund42,916$451.5K0.01%−1,372−3.1%Reduced
Teacher Retirement System of Texas42,529$447.0K0.00%+883+2.1%Added
Teachers Retirement System of the State of Kentucky42,008$442.0K0.00%00.0%Unchanged
Two Sigma Securities, LLC41,734$439.0K0.04%+27,560+194.4%Added
Shell Asset Management Co41,697$439.0K0.02%−144−0.3%Reduced
Grimes & Company, Inc.40,051$421.3K0.02%−7,795−16.3%Reduced
Arizona State Retirement System40,002$420.8K0.00%+1,088+2.8%Added
Capital Fund Management S.A.38,646$406.6K0.01%−275,902−87.7%Reduced
Panagora Asset Management Inc38,332$403.3K0.00%00.0%Unchanged
LPL Financial LLC38,024$400.0K0.00%−164−0.4%Reduced
Broderick Brian C37,000$389.2K0.11%−42,000−53.2%Reduced
Point72 Middle East FZE36,850$387.7K0.02%+36,850New
E Fund Management Co., Ltd.35,319$372.0K0.03%−366−1.0%Reduced
First Hawaiian Bank34,730$365.4K0.01%00.0%Unchanged
Duality Advisers, LP33,811$355.7K0.04%−41,198−54.9%Reduced
HighTower Advisors, LLC32,689$352.0K0.00%+32,689New
Aigen Investment Management, LP31,893$335.5K0.05%−9,194−22.4%Reduced
ProShare Advisors LLC30,416$320.0K0.00%−3,750−11.0%Reduced
Miller Howard Investments Inc29,854$314.1K0.01%+39+0.1%Added
Tocqueville Asset Management L.P.29,641$311.8K0.01%00.0%Unchanged
Advisory Research Inc29,600$311.4K0.05%−693−2.3%Reduced
Handelsbanken Fonder AB28,955$305.0K0.00%00.0%Unchanged
Y-Intercept (Hong Kong) Ltd28,816$303.1K0.04%+28,816New
Prairiewood Capital, LLC28,233$297.0K0.20%+28,233New
Zurcher Kantonalbank (Zurich Cantonalbank)28,191$296.6K0.00%+9,826+53.5%Added
Mutual of America Capital Management LLC27,482$289.1K0.00%−486−1.7%Reduced
Robeco Institutional Asset Management B.V.27,336$287.6K0.00%+27,336New
State of Wyoming26,750$281.4K0.09%+253+1.0%Added
Campbell & CO Investment Adviser LLC24,959$262.6K0.05%−11,368−31.3%Reduced
Public Employees Retirement Association of Colorado24,883$262.0K0.00%00.0%Unchanged
Virtus ETF Advisers LLC24,838$261.3K0.14%+439+1.8%Added
Quent Capital, LLC24,500$255.3K0.04%00.0%Unchanged
Prospera Financial Services Inc23,870$251.1K0.01%+924+4.0%Added
Mariner, LLC23,672$249.0K0.00%−881−3.6%Reduced
Franklin Resources Inc22,814$240.0K0.00%+2,798+14.0%Added
AXA S.A.21,900$230.4K0.00%+21,900New
New Vernon Capital Holdings II LLC21,572$226.9K0.17%+167+0.8%Added
Russell Investments Group, Ltd.20,762$218.4K0.00%−16,610−44.4%Reduced
Wedge Capital Management L L P20,562$216.3K0.00%+5,659+38.0%Added
Fox Run Management, L.L.C.19,668$206.9K0.07%+19,668New
Bank of Montreal17,858$202.5K0.00%+4,324+31.9%Added
Teza Capital Management LLC19,032$200.2K0.04%+19,032New
FMR LLC18,990$199.8K0.00%−248−1.3%Reduced
Euclidean Technologies Management, LLC18,475$194.4K0.18%00.0%Unchanged
Virginia Retirement Systems Et Al18,200$191.5K0.00%+1,300+7.7%Added
Pictet Asset Management SA16,495$173.5K0.00%00.0%Unchanged
Aquatic Capital Management LLC15,800$166.0K0.01%+15,200+2,533.3%Added
First Manhattan Co14,925$157.0K0.00%00.0%Unchanged
Kula Investments, LLC14,003$147.3K0.04%+14,003New
Raymond James Financial Services Advisors, Inc.13,725$144.4K0.00%−92−0.7%Reduced
Summit Global Investments13,300$140.0K0.01%00.0%Unchanged
Virtu Financial LLC11,722$123.0K0.01%+11,722New
Tokio Marine Asset Management Co Ltd11,600$122.0K0.01%+1,400+13.7%Added
Cetera Advisor Networks LLC11,213$118.0K0.00%−145−1.3%Reduced
Sawyer & Company, Inc10,950$117.0K0.06%−19,050−63.5%Reduced
KBC Group NV11,045$116.0K0.00%−1,424−11.4%Reduced
Mackenzie Financial Corp10,460$110.0K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.10,251$107.8K0.00%00.0%Unchanged
Point72 Asset Management, L.P.10,193$107.2K0.00%+10,193New
Advisor Group Holdings, Inc.10,091$106.2K0.00%−2,851−22.0%Reduced