https://investor.ironwoodpharma.com/press-releases/press-release-details/2019/Ironwood-Pharmaceuticals-Announced-Proposed-Offering-of-330-Million-of-Convertible-Senior-Notes/default.aspx
https://investor.ironwoodpharma.com/press-releases/press-release-details/2019/Ironwood-Pharmaceuticals-Announced-Proposed-Offering-of-330-Million-of-Convertible-Senior-Notes/default.aspx