Ironwood Pharmaceuticals, Inc. (IRWD)
NASDAQ: IRWD · Real-Time Price · USD
4.130
+0.290 (7.55%)
At close: Jun 26, 2026, 4:00 PM EDT
4.040
-0.090 (-2.18%)
After-hours: Jun 26, 2026, 7:56 PM EDT

Company Description

Ironwood Pharmaceuticals, Inc., a biotechnology company, focuses on the development and commercialization of therapies for gastrointestinal (GI) and rare diseases in the United States and internationally.

It sells linaclotide, a guanylate cyclase type-C (GC-C) agonist for the treatment of adults suffering from irritable bowel syndrome with constipation or chronic idiopathic constipation, as well as for pediatric patients suffering from functional constipation under the LINZESS and CONSTELLA names.

The company is also developing IW-3300, a GC-C agonist for the treatment of visceral pain conditions, including interstitial cystitis/bladder pain syndrome and endometriosis; and Apraglutide, a synthetic peptide long-acting analog of glucagon-like peptide-2 for short bowel syndrome patients dependent on parenteral support, as well as for acute graft versus host disease.

It has strategic partnerships with AbbVie Inc., AstraZeneca AB, and Astellas Pharma Inc. for the development and commercialization of linaclotide.

The company was formerly known as Microbia, Inc. and changed its name to Ironwood Pharmaceuticals, Inc. in April 2008.

Ironwood Pharmaceuticals, Inc. was incorporated in 1998 and is headquartered in Boston, Massachusetts.

Ironwood Pharmaceuticals, Inc.
Ironwood Pharmaceuticals logo
Country United States
Founded 1998
IPO Date Feb 3, 2010
Industry Drug Manufacturers - Specialty & Generic
Sector Healthcare
Employees 100
CEO Thomas McCourt

Contact Details

Address:
100 Summer Street, Suite 2300
Boston, Massachusetts 02110
United States
Phone 617 621 7722
Website ironwoodpharma.com

Stock Details

Ticker Symbol IRWD
Exchange NASDAQ
Stock Type Common Stock
Share Class Class A Shares
Fiscal Year January - December
Reporting Currency USD
CIK Code 0001446847
CUSIP Number 46333X108
ISIN Number US46333X1081
Employer ID 04-3404176
SIC Code 2834

Key Executives

Name Position
Thomas A. McCourt Chief Executive Officer and Director
Tammi Gaskins Senior Vice President and Chief Commercial Officer.
Ronald Silver Senior Vice President, Interim Chief Financial Officer, Corporate Controller and Chief Accounting Officer
Dr. Rosario Lobrutto M.B.A., M.S., Ph.D. Vice President and Global Head of Technical Operations
John Minardo Senior Vice President, Chief Legal Officer and Secretary
Dr. Michael Shetzline M.D., Ph.D. Chief Medical Officer, Senior Vice President and Head of Research and Drug Development

Latest SEC Filings

Date Type Title
Jun 18, 2026 8-K Current Report
Jun 16, 2026 144 Filing
Jun 15, 2026 8-K Current Report
May 21, 2026 8-K/A [Amend] Current report
May 15, 2026 SCHEDULE 13G/A Filing
May 14, 2026 SCHEDULE 13G/A Filing
May 13, 2026 8-K Current Report
May 7, 2026 10-Q Quarterly Report
May 7, 2026 8-K Current Report
Apr 28, 2026 ARS Filing