0001209191-23-058948.txt : 20231218 0001209191-23-058948.hdr.sgml : 20231218 20231218160932 ACCESSION NUMBER: 0001209191-23-058948 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20231214 FILED AS OF DATE: 20231218 DATE AS OF CHANGE: 20231218 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Kessler Marla L CENTRAL INDEX KEY: 0001772124 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-34620 FILM NUMBER: 231493796 MAIL ADDRESS: STREET 1: C/O IRONWOOD PHARMACEUTICALS, INC. STREET 2: 100 SUMMER STREET, 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] ORGANIZATION NAME: 03 Life Sciences 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 2023-12-14 0 0001446847 IRONWOOD PHARMACEUTICALS INC IRWD 0001772124 Kessler Marla L C/O IRONWOOD PHARMACEUTICALS, INC. 100 SUMMER STREET, SUITE 2300 BOSTON MA 02110 1 0 0 0 1 Class A Common Stock 2023-12-14 4 S 0 9926 11.19 D 96572 D This transaction was effected pursuant to a written Rule 10b5-1 plan adopted by the Reporting Person on September 7, 2023, to satisfy tax obligations in connection with the vesting of 21,571 restricted stock awards on June 19, 2023. /s/ Brian Tessler, Attorney-in-Fact 2023-12-18