https://investor.ironwoodpharma.com/press-releases/press-release-details/2018/Ironwood-Pharmaceuticals-Files-Definitive-Proxy-Materials-and-Mails-Letter-to-Shareholders/default.aspx
https://investor.ironwoodpharma.com/press-releases/press-release-details/2018/Ironwood-Pharmaceuticals-Files-Definitive-Proxy-Materials-and-Mails-Letter-to-Shareholders/default.aspx