0001209191-23-046018.txt : 20230816 0001209191-23-046018.hdr.sgml : 20230816 20230816162136 ACCESSION NUMBER: 0001209191-23-046018 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230814 FILED AS OF DATE: 20230816 DATE AS OF CHANGE: 20230816 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Silver Ronald CENTRAL INDEX KEY: 0001873731 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-34620 FILM NUMBER: 231178467 MAIL ADDRESS: STREET 1: 100 SUMMER STREET STREET 2: SUITE 2300 CITY: BOSTON STATE: MA ZIP: 02110 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: IRONWOOD PHARMACEUTICALS INC CENTRAL INDEX KEY: 0001446847 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 043404176 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 100 SUMMER STREET, SUITE 2300 CITY: BOSTON STATE: MA ZIP: 02110 BUSINESS PHONE: 617-621-7722 MAIL ADDRESS: STREET 1: 100 SUMMER STREET, SUITE 2300 CITY: BOSTON STATE: MA ZIP: 02110 4 1 doc4.xml FORM 4 SUBMISSION X0508 4 2023-08-14 0 0001446847 IRONWOOD PHARMACEUTICALS INC IRWD 0001873731 Silver Ronald C/O IRONWOOD PHARMACEUTICALS, INC. 100 SUMMER STREET SUITE 2300 BOSTON MA 02110 0 1 0 0 Principal Accounting Officer 0 Class A Common Stock 2023-08-14 4 S 0 1976 10.04 D 134172 D The sale reported on this Form 4 represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. The sale occurred automatically to satisfy the tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary trade by the Reporting Person. The reporting person acquired 2,037 shares of Class A Common Stock under the issuer's employee stock purchase plan on June 30, 2023. /s/ Brian Tessler, Attorney-in-Fact 2023-08-16