https://investor.ironwoodpharma.com/press-releases/press-release-details/2010/Underwriters-Exercise-Over-Allotment-Option-for-Ironwood-Pharmaceuticals-Initial-Public-Offering/default.aspx
https://investor.ironwoodpharma.com/press-releases/press-release-details/2010/Underwriters-Exercise-Over-Allotment-Option-for-Ironwood-Pharmaceuticals-Initial-Public-Offering/default.aspx