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Below is a table of the IRWD shares outstanding history going back to 2/3/2010:
Also see: IRWD Market Cap History IRWD YTD Return |
IRWD Shares Outstanding History — Ironwood Pharmaceuticals Share Count Over Time
As of 4/30/2026 Ironwood Pharmaceuticals has 164.61 million IRWD shares outstanding. Investors often track the IRWD shares outstanding history to compare shareholder return trends against the change in share count over time.
This page shows IRWD share count trends over time, with 68 historical shares outstanding datapoints presented, dating back to 2/3/2010.
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IRWD Historical Shares Outstanding: +13.89% CAGR 
Mouse over chart for data details
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| IRWD Stock Price Chart |
| About Ironwood Pharmaceuticals Inc |
| Ironwood Pharmaceuticals, Inc. is a gastrointestinal (GI) healthcare company engaged in advancing the treatment of GI diseases and redefining the standard of care for GI patients. It is engaged in the development of LINZESS (linaclotide) for adults with irritable bowel syndrome with constipation (IBS-C) or chronic idiopathic constipation (CIC). Linaclotide is also approved for the treatment of functional constipation in pediatric patients ages 6-17 years old. We show 68 historical shares outstanding datapoints in our coverage of IRWD's shares outstanding history. Understanding the changing numbers of IRWD shares outstanding — and comprehending the concept of differing number of shares outstanding in general comparing companies like IRWD versus peers — is critical for investors. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies. Furthermore, via issuance of new shares over time, or the repurchase of existing shares, the number of shares outstanding can fluctuate over the course of history. With this page we aim to empower investors researching IRWD by allowing them to research IRWD shares outstanding history as well as any other stock in our coverage universe. |
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| IRWD Share Performance |
| Shares Outstanding Peers |
| Ironwood Pharmaceuticals (IRWD) is categorized under the Healthcare sector; to help you further research historical shares outstanding numbers, below are some other companies in the same sector:
ISEE Shares Outstanding History ISO Shares Outstanding History ISPC Shares Outstanding History ISRG Shares Outstanding History ITCI Shares Outstanding History ITGR Shares Outstanding History ITOS Shares Outstanding History ITUS Shares Outstanding History IVC Shares Outstanding History IVF Shares Outstanding History More Healthcare companies » |
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