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Disclosery

IRWD IRONWOOD PHARMACEUTICALS INC

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COMMON STOCK (common), issuer CIK 1446847

194 managers (199 13F filers) reported a position in IRWD shares at 2025-12-31, 154,643,120 shares in all. 52 filers opened a position and 18 filers sold out during the quarter.

Managers
194
13F filers
199
New
52
Added
64
Reduced
47
Sold out
18
Shares held by filers
154,643,120

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
VANGUARD GROUP INCgroup of 2 filers holding16,033,035$54M-111,677Timeline
ARMISTICE CAPITAL, LLC16,025,000$54M1.32%-125,00013F-HRTimeline
Sarissa Capital Management LP15,919,435$53.6M24.07%013F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.12,784,806$43.1M<0.01%+722,24813F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/11,521,660$38.8M<0.01%-173,88413F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC8,204,973$27.7M0.04%-147,20013F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC6,457,817$21.7M0.04%-44,67613F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding5,993,305$20.2M+142,294Timeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co4,975,939$16.8M<0.01%+58,60313F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC4,723,531$15.9M0.01%-655,00413F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP4,424,002$14.9M0.01%+1,279,86313F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP4,411,222$14.9M<0.01%+1,254,91513F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC3,623,534$12.2M<0.01%+8,54713F-HRTimelineGroup
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.3,318,137$11.2M0.02%+1,161,03313F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC2,819,562$9.5M0.01%+498,46713F-HRTimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC2,759,667$9.3M0.04%+839,13713F-HRTimeline
Connor, Clark & Lunn Investment Managem…1,990,927$6.71M0.02%-170,89113F-HRTimeline
Qube Research & Technologies Ltd1,681,229$5.67M0.01%-1,125,68113F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,275,315$4.3M<0.01%+190,94813F-HR/ATimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP1,233,685$4.16M<0.01%-107,22113F-HRTimelineGroup
Hillsdale Investment Management Inc.1,156,378$3.9M0.11%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\1,109,924$3.74M<0.01%-417,30513F-HRTimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC1,000,445$3.37M0.01%new13F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC869,826$2.93M<0.01%+854,78013F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY739,685$2.49M<0.01%+262,58513F-HR/ATimelineGroup
FMR LLCin group FMR LLC686,737$2.31M<0.01%+126,79113F-HRTimelineGroup
DIADEMA PARTNERS LP683,611$2.3M1.37%new13F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO673,862$2.27M<0.01%-9,74213F-HRTimelineGroup
Exome Asset Management LLC648,532$2.19M1.08%new13F-HRTimeline
Amundiin group Amundi642,830$2.17M<0.01%new13F-HRTimelineGroup
IEQ CAPITAL, LLC633,260$2.13M0.01%-28,43813F-HRTimeline
GSA CAPITAL PARTNERS LLP571,613$1.93M0.17%+262,08413F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC560,713$1.89M<0.01%+310,59413F-HRTimelineGroup
Walleye Capital LLCin group Walleye Capital LLC527,936$1.78M0.01%new13F-HRTimelineGroup
UBS Group AGin group UBS Group AG510,543$1.72M<0.01%-301,12113F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp510,207$1.72M<0.01%+7,12913F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…503,942$1.7M<0.01%new13F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC495,993$1.67M0.04%+345,99313F-HRTimeline
Invesco Ltd.in group Invesco Ltd.449,219$1.51M<0.01%+82,68713F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…448,799$1.51M<0.01%+351,93313F-HRTimelineGroup
Range Financial Group LLC426,095$1.44M0.5%new13F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …412,061$1.39M<0.01%new13F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC392,904$1.32M<0.01%+95,58613F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources385,583$1.3M<0.01%+362,33213F-HRTimelineGroup
Robeco Institutional Asset Management B…in group Robeco Institutional Asset Ma…342,998$1.16M<0.01%013F-HRTimelineGroup
Cerity Partners LLCin group Cerity Partners LLC338,512$1.14M<0.01%-53613F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP330,836$1.11M<0.01%+240,46313F-HRTimelineGroup
O'SHAUGHNESSY ASSET MANAGEMENT, LLC290,278$978K0.01%new13F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC634,331$951K<0.01%-495,72113F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…265,357$894K<0.01%-61,21013F-HRTimelineGroup
CWM, LLCin group CWM, LLC232,984$785K<0.01%+19413F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC223,969$755K<0.01%-420,07713F-HRTimelineGroup
OMERS ADMINISTRATION Corp215,110$725K0.01%013F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO214,607$723K<0.01%+102,45013F-HRTimelineGroup
RHUMBLINE ADVISERS199,908$674K<0.01%-23,32113F-HRTimeline
ALLIANCEBERNSTEIN L.P.199,520$672K<0.01%013F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…155,523$665K<0.01%+1,13513F-HRTimeline
Hennion & Walsh Asset Management, Inc.196,032$661K0.02%+26,53913F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD188,000$634K<0.01%new13F-HRTimeline
Persistent Asset Partners Ltd182,046$613K0.29%new13F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD180,040$607K<0.01%new13F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN176,582$595K<0.01%+75,33013F-HRTimelineGroup
KLP KAPITALFORVALTNING AS174,200$587K<0.01%013F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd164,335$554K0.02%new13F-HRTimelineGroup
Creative Planningin group Creative Planning162,075$546K<0.01%+71,91913F-HRTimelineGroup
State of Wyoming157,325$530K0.06%-205,08213F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC141,129$476K<0.01%+91,19413F-HRTimelineGroup
Nuveen, LLCin group TIAA139,487$470K<0.01%new13F-HRTimelineGroup
PRELUDE CAPITAL MANAGEMENT, LLC136,507$460K0.03%new13F-HRTimeline
Virtus Investment Advisers, LLCgroup of 2 filers holding132,311$446KnewTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC119,969$404K<0.01%013F-HRTimelineGroup
Quantinno Capital Management LP118,893$401K<0.01%new13F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.117,446$396K<0.01%-254,82413F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding114,193$385K+34,942Timeline
Mariner, LLCin group Mariner, LLC114,119$384K<0.01%+12,80613F-HRTimelineGroup
Focus Partners Wealthgroup of 2 filers holding103,582$349K+6,635Timeline
Integrated Quantitative Investments LLC102,654$346K0.07%new13F-HRTimeline
Cercano Management LLC101,378$342K0.01%013F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/99,363$335K<0.01%+19,18513F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC88,880$300K<0.01%+68,61313F-HRTimelineGroup
Pallas Capital Advisors LLC87,975$296K0.01%+40613F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…87,521$295K<0.01%+29,51213F-HRTimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …79,013$266K<0.01%-45,86213F-HRTimelineGroup
MERCER GLOBAL ADVISORS INC /ADV76,951$259K<0.01%+5,59813F-HRTimeline
STRS OHIO76,600$258K<0.01%013F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC76,554$258K<0.01%-119,17813F-HRTimeline
SmartHarvest Portfolios, LLC75,585$255K0.09%13F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC71,573$241K<0.01%-62113F-HRTimeline
CIBC WORLD MARKET INC.71,331$240K<0.01%new13F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…67,888$229K<0.01%+7,12013F-HRTimeline
SCOTIA CAPITAL INC.67,183$226K<0.01%new13F-HRTimeline
EntryPoint Capital, LLC66,625$225K0.09%new13F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management65,156$220K<0.01%new13F-HRTimelineGroup
Rafferty Asset Management, LLC64,841$219K<0.01%new13F-HRTimeline
CAPTRUST FINANCIAL ADVISORS63,822$215K<0.01%+66813F-HRTimeline
WEDBUSH SECURITIES INC63,733$215K0.01%new13F-HRTimeline
Optimist Retirement Group LLC59,912$202K0.09%new13F-HRTimeline
SG Americas Securities, LLC57,747$195K<0.01%+20,79513F-HRTimeline
PANAGORA ASSET MANAGEMENT INC54,408$183K<0.01%-104,55413F-HRTimeline
Merit Financial Group, LLC49,378$166K<0.01%+49913F-HRTimeline
Polymer Capital Management (US) LLC48,747$164K0.02%new13F-HRTimeline
Man Group plcin group Man Group plc47,659$161K<0.01%new13F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …47,588$160K<0.01%-6,35413F-HRTimelineGroup
Krilogy Financial LLC30,223$157K0.01%+1513F-HRTimeline
Police & Firemen's Retirement System of…44,115$149K<0.01%013F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd43,904$148K<0.01%+32,65713F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND41,869$141K<0.01%013F-HRTimeline
Engineers Gate Manager LP38,701$130K<0.01%-63,31313F-HRTimeline
ProShare Advisors LLC36,315$122K<0.01%+3,17013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS32,454$109K<0.01%-1,87713F-HRTimelineGroup
Jain Global LLC30,009$101K<0.01%new13F-HRTimeline
Vise Technologies, Inc.29,680$100K<0.01%+4813F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC28,759$96.9K<0.01%-60813F-HRTimelineGroup
China Universal Asset Management Co., L…26,508$89.3K0.01%-1,96413F-HRTimeline
PROFUND ADVISORS LLC26,483$89.2K<0.01%new13F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC26,478$89.2K<0.01%new13F-HRTimeline
GRIMES & Co WEALTH MANAGEMENT, LLC25,887$87.2K<0.01%-15,10713F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC23,436$78.9K<0.01%new13F-HR/ATimelineGroup
Essential Partners LLC22,081$74.4K0.02%+15313F-HRTimeline
OVERSEA-CHINESE BANKING Corp Ltdin group OVERSEA-CHINESE BANKING Corp …21,465$72.3K<0.01%013F-HR/ATimelineGroup
Harvest Investment Services, LLC20,170$68K0.01%new13F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC18,042$60.8K<0.01%+3713F-HRTimeline
Broderick Brian C18,000$60.7K0.01%013F-HRTimeline
NorthCrest Asset Manangement, LLC13,157$60.4K<0.01%+15513F-HRTimeline
Ariadne Wealth Management, LP12,224$56.4K0.02%-1713F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc16,690$56.2K<0.01%-1,66913F-HRTimelineGroup
Abel Hall, LLC16,661$56.1K0.01%new13F-HRTimeline
HighTower Advisors, LLC16,150$54.4K<0.01%+1,15013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC15,501$52.2K<0.01%-4,71813F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…15,149$51.1K<0.01%+5,62513F-HRTimelineGroup
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC14,852$50.1K<0.01%+4,61013F-HRTimelineGroup
EVOLVE PRIVATE WEALTH, LLC14,809$49.9K<0.01%13F-HRTimeline
Calamos Advisors LLCin group Calamos Advisors LLC14,520$48.9K<0.01%new13F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…13,773$46.4K<0.01%013F-HRTimelineGroup
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…13,680$46.1K<0.01%-89113F-HRTimelineGroup
FARALLON CAPITAL MANAGEMENT, L.L.C.13,000$43.8K<0.01%013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
DIVERSIFIED TRUST CO12,574$42.4K<0.01%013F-HRTimeline
waypoint wealth counsel12,503$42.1K0.02%-15513F-HRTimeline
XPONANCE LLC12,419$41.9K<0.01%+8013F-HRTimeline
MQS Management LLC12,414$41.8K0.02%new13F-HRTimeline
COLDSTREAM CAPITAL MANAGEMENT INC12,300$41.5K<0.01%+1,29913F-HRTimeline
Cetera Investment Advisers11,949$40.3K<0.01%013F-HRTimeline
Integrated Wealth Concepts LLC11,436$38.5K<0.01%-7,85913F-HRTimeline
MACKENZIE FINANCIAL CORP11,544$38.4K<0.01%+1,08413F-HRTimeline
EVOKE WEALTH, LLC11,287$38K<0.01%+45213F-HRTimeline
Stonebrook Private Inc.10,985$37K0.01%013F-HRTimeline
Simplify Asset Management Inc.10,946$36.9K<0.01%new13F-HRTimeline
CIBC WORLD MARKETS CORPin group CIBC Bancorp USA Inc.10,585$35.7K<0.01%13F-HRTimelineGroup
Kaufman Rossin Wealth, LLC10,516$35.4K0.02%013F-HRTimeline
DGS Capital Management, LLCin group DGS Capital Management, LLC10,425$35.1K0.01%new13F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC10,062$33.9K<0.01%new13F-HRTimelineGroup
Fisher Asset Management, LLC10,000$33.7K<0.01%013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…9,851$33.2K<0.01%-40713F-HRTimeline
LSV ASSET MANAGEMENT9,048$30K<0.01%new13F-HRTimeline
EMC Capital Management8,386$28K0.01%-1,48013F-HRTimeline
HARBOR CAPITAL ADVISORS, INC.7,902$27K<0.01%-13513F-HRTimeline
NewEdge Advisors, LLC5,793$19.5K<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA5,310$18K<0.01%+3,79313F-HRTimelineGroup
AMALGAMATED BANK5,027$17K<0.01%+35013F-HRTimeline
IFP Advisors, Inc4,033$13.6K<0.01%+813F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.3,399$11.5K<0.01%+4713F-HRTimelineGroup
GF FUND MANAGEMENT CO. LTD.3,196$10.8K<0.01%-19113F-HRTimeline
Global Retirement Partners, LLC2,713$9.14K<0.01%new13F-HRTimeline
GAMMA Investing LLC2,462$8.3K<0.01%new13F-HRTimeline
True Wealth Design, LLC2,361$7.96K<0.01%013F-HRTimeline
WealthCollab, LLC1,970$6.64K<0.01%013F-HRTimeline
Sterling Capital Management LLC1,916$6.46K<0.01%+67513F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP1,683$5.67K<0.01%new13F-HRTimelineGroup
Physician Wealth Advisors, Inc.1,669$5.62K<0.01%013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC1,627$5.48K<0.01%013F-HRTimeline
Allworth Financial LP1,457$4.91K<0.01%+22913F-HRTimeline
ROTHSCHILD INVESTMENT LLC966$3.25K<0.01%+4613F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.938$3.16K<0.01%-1,22413F-HRTimelineGroup
BESSEMER GROUP INCin group BESSEMER GROUP INC932$3K<0.01%013F-HRTimelineGroup
OPTIMA CAPITAL LLC778$2.62K<0.01%new13F-HRTimeline
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.573$2K<0.01%013F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…548$1.85K<0.01%-11413F-HR/ATimelineGroup
Sunbelt Securities, Inc.444$1.5K<0.01%013F-HRTimeline
FLAGSHIP HARBOR ADVISORS, LLC300$1.01K<0.01%new13F-HRTimeline
Avion Wealth408$1K<0.01%013F-HRTimeline
CoreCap Advisors, LLC235$792<0.01%013F-HRTimeline
Pinnacle Wealth Planning Services, Inc.201$677<0.01%new13F-HRTimeline
Clean Yield Group85$286<0.01%013F-HRTimeline
Torren Management, LLC72$243<0.01%13F-HRTimeline
SBI Securities Co., Ltd.66$222<0.01%-213F-HRTimeline
Farther Finance Advisors, LLC52$175<0.01%new13F-HRTimeline
Garner Asset Management Corp50$169<0.01%new13F-HRTimeline
Clearstead Advisors, LLC41$139<0.01%-2,98713F-HRTimeline
Blue Trust, Inc.34$115<0.01%013F-HRTimeline
Arax Advisory Partners23$78<0.01%-143,36913F-HRTimeline
SJS Investment Consulting Inc.21$71<0.01%new13F-HRTimeline
Steward Partners Investment Advisory, L…17$57<0.01%013F-HRTimeline
Smartleaf Asset Management LLC1$3<0.01%new13F-HRTimeline
Covestor Ltd94$00%013F-HRTimelineValue filed as zero, left out of ratios.