0000899243-17-025506.txt : 20171107 0000899243-17-025506.hdr.sgml : 20171107 20171107160530 ACCESSION NUMBER: 0000899243-17-025506 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20171106 FILED AS OF DATE: 20171107 DATE AS OF CHANGE: 20171107 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Larkin Cristina CENTRAL INDEX KEY: 0001721173 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38266 FILM NUMBER: 171183385 MAIL ADDRESS: STREET 1: C/O SPERO THERAPEUTICS, INC. STREET 2: 675 MASSACHUSETTS AVENUE, 14TH FLOOR CITY: CAMBRIDGE STATE: MA ZIP: 02139 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Spero Therapeutics, Inc. CENTRAL INDEX KEY: 0001701108 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 675 MASSACHUSETTS AVENUE STREET 2: 14TH FLOOR CITY: CAMBRIDGE STATE: MA ZIP: 02139 BUSINESS PHONE: 857-242-1600 MAIL ADDRESS: STREET 1: 675 MASSACHUSETTS AVENUE STREET 2: 14TH FLOOR CITY: CAMBRIDGE STATE: MA ZIP: 02139 FORMER COMPANY: FORMER CONFORMED NAME: Spero Therapeutics, LLC DATE OF NAME CHANGE: 20170316 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2017-11-06 0 0001701108 Spero Therapeutics, Inc. SPRO 0001721173 Larkin Cristina C/O SPERO THERAPEUTICS, INC. 675 MASSACHUSETTS AVENUE, 14TH FLOOR CAMBRIDGE MA 02139 0 1 0 0 Chief Operating Officer Common Stock 2017-11-06 4 P 0 1500 14.00 A 1500 D Reflects shares that were purchased through a directed share program in connection with the Issuer's initial public offering. /s/ Matthew Tikonoff, Attorney-in-Fact for Cristina Larkin 2017-11-07