0001209191-21-066779.txt : 20211124 0001209191-21-066779.hdr.sgml : 20211124 20211124160730 ACCESSION NUMBER: 0001209191-21-066779 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20211123 FILED AS OF DATE: 20211124 DATE AS OF CHANGE: 20211124 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: 211446488 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 X0306 4 2021-11-23 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 Class A Common Stock 2021-11-23 4 S 0 749 11.58 D 61926 D Class A Common Stock 2021-11-23 4 S 0 713 11.58 D 61213 D This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. This sale was made to cover tax withholding obligations in connection with vesting and settlement of approximately 100% of the reporting person's restricted stock units granted on December 16, 2019. This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. This sale was made to cover tax withholding obligations in connection with vesting and settlement of approximately 50% of the reporting person's restricted stock units granted on December 4, 2020. /s/ Brian Tessler, Attorney-in-Fact 2021-11-24