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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 2024

Institutional positions in Ironwood Pharmaceuticals Inc as of Dec 31, 2024. 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
223
+4 vs. Q3 2024
Shares held
164.2M
+755.5K (+0.5%) vs. Q3 2024
Total value
$727.5M
+$53.8M (+8.0%) vs. Q3 2024
New holders
41
77 more added
Sold out
37
77 more reduced

2 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2024: 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 2024: 223 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 2024: $727.5M
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 2024

Shares, value and share of portfolio for each institution holding Ironwood Pharmaceuticals Inc; share changes are against Q3 2024.

Institutions holding IRWD in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Acadian Asset Management LLC1,014,463$4.49M0.01%+228,171+29.0%Added
JPMorgan Chase & Co1,074,506$4.76M0.00%+767,641+250.2%Added
Point72 Asset Management, L.P.1,151,008$5.10M0.01%+1,151,008New
Jupiter Asset Management Ltd1,223,275$5.42M0.05%−225,160−15.5%Reduced
Two Sigma Advisers, LP1,234,000$5.47M0.01%−26,500−2.1%Reduced
Deutsche Bank AG1,567,535$6.94M0.00%+504,336+47.4%Added
Northern Trust Corp1,625,110$7.20M0.00%+118,962+7.9%Added
Charles Schwab Investment Management Inc1,983,240$8.79M0.00%+78,969+4.1%Added
UBS Group AG2,179,261$9.65M0.00%+1,232,377+130.2%Added
Millennium Management LLC2,180,443$9.66M0.01%+1,254,571+135.5%Added
Geode Capital Management, LLC3,306,570$14.7M0.00%+13,028+0.4%Added
Jacobs Levy Equity Management, Inc3,623,026$16.1M0.06%−642,074−15.1%Reduced
Morgan Stanley4,024,693$17.8M0.00%−296,896−6.9%Reduced
LSV Asset Management4,081,501$18.1M0.04%−970,100−19.2%Reduced
Kynam Capital Management, LP4,685,563$20.8M1.37%+1,000,000+27.1%Added
Braidwell LP5,440,277$24.1M0.71%+1,002,045+22.6%Added
State Street Corp8,328,817$36.9M0.00%−1,591,048−16.0%Reduced
Renaissance Technologies LLC9,066,241$40.2M0.06%+469,043+5.5%Added
Armistice Capital, LLC9,468,000$41.9M0.98%+1,268,000+15.5%Added
Pacer Advisors, Inc.11,730,771$52.0M0.11%+450,949+4.0%Added
Sarissa Capital Management LP16,390,000$72.6M22.49%00.0%Unchanged
Vanguard Group Inc19,538,555$86.6M0.00%−2,499,542−11.3%Reduced
BlackRock, Inc.23,037,335$102.1M0.00%+117,478+0.5%Added
Capital Fund Management S.A.0$00.00%−581,359−100.0%Sold out
Redwood Investment Management, LLC0$00.00%−534,560−100.0%Sold out
Emerald Advisers, LLC0$00.00%−456,770−100.0%Sold out
Hodges Capital Management Inc.0$00.00%−347,500−100.0%Sold out
Weiss Asset Management LP0$00.00%−216,707−100.0%Sold out
Knott David M Jr0$00.00%−207,033−100.0%Sold out
Emerald Mutual Fund Advisers Trust0$00.00%−197,396−100.0%Sold out
Kennedy Capital Management, Inc.0$00.00%−102,477−100.0%Sold out
Guggenheim Capital LLC0$00.00%−100,251−100.0%Sold out
Massachusetts Financial Services Co0$00.00%−99,470−100.0%Sold out
Clearline Capital LP0$00.00%−92,870−100.0%Sold out
Jump Financial, LLC0$00.00%−66,189−100.0%Sold out
Handelsbanken Fonder AB0$00.00%−59,455−100.0%Sold out
Sherbrooke Park Advisers LLC0$00.00%−50,701−100.0%Sold out
Sumitomo Mitsui Trust Holdings, Inc.0$00.00%−40,867−100.0%Sold out
Everence Capital Management Inc0$00.00%−27,850−100.0%Sold out
Quent Capital, LLC0$00.00%−24,500−100.0%Sold out
Gotham Asset Management, LLC0$00.00%−23,766−100.0%Sold out
Ballentine Partners, LLC0$00.00%−21,541−100.0%Sold out
Quantinno Capital Management LP0$00.00%−19,191−100.0%Sold out
Virtu Financial LLC0$00.00%−18,962−100.0%Sold out
Mercer Global Advisors Inc0$00.00%−15,316−100.0%Sold out
Axq Capital, LP0$00.00%−14,929−100.0%Sold out
KBC Group NV0$00.00%−8,593−100.0%Sold out
GAMMA Investing LLC0$00.00%−6,170−100.0%Sold out
WealthCollab, LLC0$00.00%−1,634−100.0%Sold out
Bessemer Group Inc0$00.00%−547−100.0%Sold out
Parallel Advisors, LLC0$00.00%−199−100.0%Sold out
Principal Securities, Inc.0$00.00%−134−100.0%Sold out
True Wealth Design, LLC0$00.00%−112−100.0%Sold out
City State Bank0$00.00%−100−100.0%Sold out
Capital Performance Advisors LLP0$00.00%−87−100.0%Sold out
Private Wealth Management Group, LLC0$00.00%−82−100.0%Sold out
SRS Capital Advisors, Inc.0$00.00%−63−100.0%Sold out
Mendota Financial Group, LLC0$00.00%−11−100.0%Sold out
Natixis0$00.00%−2−100.0%Sold out
Hemington Wealth Management0$00.00%−34−100.0%Sold out
Raymond James Financial Services Advisors, Inc.––––Not filed
Planning Capital Management Corp––––Not filed