13F

Stock

Ironwood Pharmaceuticals Inc

IRWD · held by 211 managers

Reported value

$672.6M

Holders

211

+4 new · −2 exited

Holders’ est. mark

$25.7M

Price effect on 7 books still in the name

Largest holder

$54M

ARMISTICE CAPITAL, LLC

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
ARMISTICE CAPITAL, LLC16M$54MHeld
Vanguard16M$53.8MHeld
Sarissa Capital Management LP15.9M$53.6MHeld
BRAIDWELL LP53.4M$50.5MHeld
HIGHBRIDGE CAPITAL MANAGEMENT LLC46.9M$44.7MHeld
BlackRock, Inc.12.8M$43.1MHeld
Context Capital Management, LLC42.1M$39.8MHeld
BANK OF AMERICA CORP /DE/11.5M$38.8M$23.7MAdded$23.5M
Renaissance Technologies8.2M$27.7MHeld
DeepCurrents Investment Group LLC25.5M$24.2MHeld
CHARLES SCHWAB INVESTMENT MANAGEMENT INC4.98M$16.8MHeld
Icahn Capital4.72M$15.9MHeld
MARSHALL WACE, LLP4.42M$14.9MHeld
State Street4.41M$14.9MHeld
GEODE CAPITAL MANAGEMENT, LLC3.62M$12.2MHeld
D. E. Shaw & Co., Inc.11.8M$11.4MHeld
FEDERATED HERMES, INC.3.32M$11.2MHeld
TWO SIGMA ADVISERS, LP3.14M$10.6MHeld
TWO SIGMA INVESTMENTS, LP2.85M$9.62MHeld
JANE STREET GROUP, LLC2.82M$9.5MHeld
JACOBS LEVY EQUITY MANAGEMENT, INC2.76M$9.3MHeld
Connor, Clark & Lunn Investment Management Ltd.1.99M$6.71MHeld
Qube Research & Technologies Ltd1.68M$5.67MHeld
GOLDMAN SACHS GROUP INC1.28M$4.3MHeld
NORTHERN TRUST CORP1.23M$4.16MHeld
Hillsdale Investment Management Inc.1.16M$3.9MHeld
Chicago Capital Management, LLC4K$3.79MHeld
DEUTSCHE BANK AG\1.11M$3.74MHeld
LAZARD ASSET MANAGEMENT LLC1M$3.37MHeld
RAYMOND JAMES FINANCIAL INC869.8K$2.93MHeld
ADVENT CAPITAL MANAGEMENT /DE/3M$2.84MHeld
MORGAN STANLEY739.7K$2.49M$982.8KAdded$1.87M
Fidelity686.7K$2.31MHeld
DIADEMA PARTNERS LP683.6K$2.3MHeld
SEI INVESTMENTS CO673.9K$2.27MHeld
Exome Asset Management LLC648.5K$2.19MHeld
Amundi642.8K$2.17MHeld
IEQ CAPITAL, LLC633.3K$2.13MHeld
MILLENNIUM MANAGEMENT LLC560.7K$1.89MHeld
Walleye Capital LLC527.9K$1.78MHeld
UBS Group AG510.5K$1.72MHeld
Bank of New York Mellon Corp510.2K$1.72MHeld
WELLINGTON MANAGEMENT GROUP LLP503.9K$1.7MHeld
BRIDGEWAY CAPITAL MANAGEMENT, LLC496K$1.67MHeld
Invesco Ltd.449.2K$1.51MHeld
SUSQUEHANNA INTERNATIONAL GROUP, LLP448.8K$1.51MHeld
Range Financial Group LLC426.1K$1.44MHeld
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP412.1K$1.39MHeld
BARCLAYS PLC392.9K$1.32M$882KAdded$756.6K
FRANKLIN RESOURCES INC385.6K$1.3MHeld
Robeco Institutional Asset Management B.V.343K$1.16MHeld
Cerity Partners LLC338.5K$1.14MHeld
DIMENSIONAL FUND ADVISORS LP330.8K$1.11MHeld
JPMORGAN CHASE & CO515.6K$1.01MHeld
O'SHAUGHNESSY ASSET MANAGEMENT, LLC290.3K$978.2KHeld
LOS ANGELES CAPITAL MANAGEMENT LLC634.3K$951.5KHeld
Russell Investments Group, Ltd.265.4K$893.7KHeld
Citadel224K$754.8KHeld
OMERS ADMINISTRATION Corp215.1K$724.9KHeld
RHUMBLINE ADVISERS199.9K$673.7KHeld
ALLIANCEBERNSTEIN L.P.199.5K$672.4KHeld
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC155.5K$664.9KHeld
Hennion & Walsh Asset Management, Inc.196K$660.6KHeld
CANADA PENSION PLAN INVESTMENT BOARD188K$633.6KHeld
Persistent Asset Partners Ltd182K$613.5KNew
STATE OF WISCONSIN INVESTMENT BOARD180K$606.7KHeld
WELLS FARGO & COMPANY/MN181.6K$599.8KHeld
KLP KAPITALFORVALTNING AS174.2K$587.1KHeld
WINTON GROUP Ltd164.3K$553.8KHeld
Creative Planning162.1K$546.2KHeld
State of Wyoming157.3K$530.2KHeld
ZAZOVE ASSOCIATES LLC550K$522KHeld
PRUDENTIAL FINANCIAL INC141.1K$475.6KHeld
Nuveen, LLC139.5K$470.1KHeld
PRELUDE CAPITAL MANAGEMENT, LLC136.5K$460KHeld
AMERIPRISE FINANCIAL INC120K$404.3KHeld
Quantinno Capital Management LP118.9K$400.7KHeld
Mariner, LLC114.1K$384.2KHeld
Integrated Quantitative Investments LLC102.7K$345.9KHeld
Cercano Management LLC101.4K$341.6KHeld
Squarepoint Ops LLC88.9K$299.5KHeld
Pallas Capital Advisors LLC88K$296.5KHeld
MetLife Investment Management, LLC87.5K$294.9KHeld
Universal- Beteiligungs- und Servicegesellschaft mbH79K$266.3KHeld
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.78.1K$263.1KHeld
MERCER GLOBAL ADVISORS INC /ADV77K$259.3KHeld
STRS OHIO76.6K$258.1KHeld
EXCHANGE TRADED CONCEPTS, LLC76.6K$258KHeld
SmartHarvest Portfolios, LLC75.6K$254.7KHeld
Vanguard Personalized Indexing Management, LLC74.8K$252.2KHeld
Virtus Investment Advisers, LLC74.3K$250.4KHeld
INTECH INVESTMENT MANAGEMENT LLC71.6K$241.2KHeld
CIBC WORLD MARKET INC.71.3K$240.4KHeld
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO67.9K$228.8KHeld
SCOTIA CAPITAL INC.67.2K$226.4KHeld
EntryPoint Capital, LLC66.6K$224.5KHeld
Balyasny Asset Management L.P.65.2K$219.6KHeld
Rafferty Asset Management, LLC64.8K$218.5KHeld
CAPTRUST FINANCIAL ADVISORS63.8K$215.1KHeld
Optimist Retirement Group LLC59.9K$201.9KHeld
Focus Partners Advisor Solutions, LLC59.6K$200.9KHeld
VIRTUS ADVISERS, LLC58K$195.5KNew
PANAGORA ASSET MANAGEMENT INC54.4K$183.4KHeld
Merit Financial Group, LLC49.4K$166.4KHeld
Polymer Capital Management (US) LLC48.7K$164.3KHeld
Man Group plc47.7K$160.6KHeld
MANUFACTURERS LIFE INSURANCE COMPANY, THE47.6K$160.4KHeld
Krilogy Financial LLC30.2K$156.6KHeld
Police & Firemen's Retirement System of New Jersey44.1K$148.7KHeld
Focus Partners Wealth44K$148.2KHeld
XTX Topco Ltd43.9K$148KHeld
NEW YORK STATE COMMON RETIREMENT FUND41.9K$141.1KHeld
Engineers Gate Manager LP38.7K$130.4KHeld
ProShare Advisors LLC36.3K$122.4KHeld
Mirae Asset Global Investments Co., Ltd.36.1K$121.6KHeld
BNP PARIBAS FINANCIAL MARKETS32.5K$109.4KHeld
Jain Global LLC30K$101.1KHeld
Vise Technologies, Inc.29.7K$100KHeld
VOYA INVESTMENT MANAGEMENT LLC28.8K$96.9KHeld
China Universal Asset Management Co., Ltd.26.5K$89.3KHeld
PROFUND ADVISORS LLC26.5K$89.2KHeld
COMMONWEALTH EQUITY SERVICES, LLC26.5K$89.2KHeld
GRIMES & Co WEALTH MANAGEMENT, LLC25.9K$87.2KHeld
HSBC HOLDINGS PLC23.4K$78.9KHeld
Essential Partners LLC22.1K$74.4K$45.2KAdded$45.7K
OVERSEA-CHINESE BANKING Corp Ltd21.5K$72.3KHeld
Harvest Investment Services, LLC20.2K$68KHeld
VICTORY CAPITAL MANAGEMENT INC18K$60.8KHeld
Broderick Brian C18K$60.7KHeld
NorthCrest Asset Manangement, LLC13.2K$60.4KHeld
Ariadne Wealth Management, LP12.2K$56.4KHeld
Legal & General Group Plc16.7K$56.2KHeld
Abel Hall, LLC16.7K$56.1KHeld
HighTower Advisors, LLC16.1K$54.4KHeld
CITIGROUP INC15.5K$52.2KHeld
Tower Research Capital LLC (TRC)15.1K$51.1KHeld
NEUBERGER BERMAN GROUP LLC14.9K$50.1KHeld
EVOLVE PRIVATE WEALTH, LLC14.8K$49.9KHeld
Calamos Advisors LLC14.5K$48.9KHeld
Ameritas Investment Partners, Inc.13.8K$46.4KHeld
EverSource Wealth Advisors, LLC13.7K$46.1KHeld
FARALLON CAPITAL MANAGEMENT LLC13K$43.8K$26.8KAdded$26.8K
DIVERSIFIED TRUST CO12.6K$42.4KHeld
waypoint wealth counsel12.5K$42.1KHeld
XPONANCE LLC12.4K$41.9KHeld
MQS Management LLC12.4K$41.8KHeld
COLDSTREAM CAPITAL MANAGEMENT INC12.3K$41.5KHeld
Cetera Investment Advisers11.9K$40.3KHeld
Integrated Wealth Concepts LLC11.4K$38.5KHeld
MACKENZIE FINANCIAL CORP11.5K$38.4KHeld
EVOKE WEALTH, LLC11.3K$38KHeld
Stonebrook Private Inc.11K$37KHeld
Simplify Asset Management Inc.10.9K$36.9KHeld
CIBC WORLD MARKETS CORP10.6K$35.7KHeld
Kaufman Rossin Wealth, LLC10.5K$35.4KHeld
DGS Capital Management, LLC10.4K$35.1KNew
Jump Financial, LLC10.1K$33.9KHeld
Fisher Asset Management, LLC10K$33.7KHeld
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM9.85K$33.2KHeld
ACADIAN ASSET MANAGEMENT LLC6.46M$21.7KHeld
NewEdge Advisors, LLC5.79K$19.5KHeld
ROYAL BANK OF CANADA5.31K$18KHeld
Advisory Services Network, LLC18K$16.9KHeld
IFP Advisors, Inc4.03K$13.6K$8.29KAdded$8.32K
Jefferies Financial Group Inc.13K$12KHeld
OSAIC HOLDINGS, INC.3.4K$11.5KHeld
GF FUND MANAGEMENT CO. LTD.3.2K$10.8KHeld
Global Retirement Partners, LLC2.71K$9.14KHeld
GAMMA Investing LLC2.46K$8.3KHeld
True Wealth Design, LLC2.36K$7.96KHeld
WealthCollab, LLC1.97K$6.64KHeld
Sterling Capital Management LLC1.92K$6.46KHeld
JONES FINANCIAL COMPANIES LLLP1.68K$5.67KHeld
Physician Wealth Advisors, Inc.1.67K$5.63KHeld
NISA INVESTMENT ADVISORS, LLC1.63K$5.48KHeld
Allworth Financial LP1.46K$4.91K$2.53KAdded$3.3K
ROTHSCHILD INVESTMENT LLC966$3.25KHeld
Optiver Holding B.V.938$3.16KHeld
OPTIMA CAPITAL LLC778$2.62KHeld
GSA CAPITAL PARTNERS LLP571.6K$1.93KHeld
Rockefeller Capital Management L.P.548$1.85KHeld
Sunbelt Securities, Inc.444$1.5KHeld
FLAGSHIP HARBOR ADVISORS, LLC300$1.01KNew
CoreCap Advisors, LLC235$792Held
CWM, LLC233K$785Held
Pinnacle Wealth Planning Services, Inc.201$677Held
PRICE T ROWE ASSOCIATES INC /MD/99.4K$335Held
Clean Yield Group85$286Held
Torren Management, LLC72$243Held
SBI Securities Co., Ltd.66$222Held
WEDBUSH SECURITIES INC63.7K$215Held
SG Americas Securities, LLC57.7K$195Held
Farther Finance Advisors, LLC52$175Held
Garner Asset Management Corp50$169Held
Clearstead Advisors, LLC41$139Held
Blue Trust, Inc.34$115Held
Arax Advisory Partners23$78Held
SJS Investment Consulting Inc.21$71Held
Steward Partners Investment Advisory, LLC17$57Held
LSV ASSET MANAGEMENT9.05K$30Held
EMC Capital Management8.39K$28Held
HARBOR CAPITAL ADVISORS, INC.7.9K$27Held
AMALGAMATED BANK5.03K$17Held
Smartleaf Asset Management LLC1$3Held
BESSEMER GROUP INC932$3Held
Daiwa Securities Group Inc.573$2Held
Avion Wealth408$1Held
Covestor Ltd94$0Held

Who left

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.