<SEC-DOCUMENT>0000921895-19-000484-index.html : 20190214 <SEC-HEADER>0000921895-19-000484.hdr.sgml : 20190214 <ACCEPTANCE-DATETIME>20190214165559 ACCESSION NUMBER: 0000921895-19-000484 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20190214 DATE AS OF CHANGE: 20190214 SUBJECT COMPANY: 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 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-90168 FILM NUMBER: 19607826 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 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: BIOTECHNOLOGY VALUE FUND L P CENTRAL INDEX KEY: 0000918923 STANDARD INDUSTRIAL CLASSIFICATION: INVESTMENT ADVICE [6282] IRS NUMBER: 363924731 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 44 MONTGOMERY STREET STREET 2: 40TH FL CITY: SAN FRANCISCO STATE: CA ZIP: 94104 BUSINESS PHONE: 3125066500 MAIL ADDRESS: STREET 1: 44 MONTGOMERY STREET STREET 2: 40TH FL CITY: SAN FRANCISCO STATE: CA ZIP: 94104 </SEC-HEADER> <DOCUMENT> <TYPE>SC 13G/A <SEQUENCE>1 <FILENAME>sc13ga107422spe_02142019.htm <DESCRIPTION>AMENDMENT NO. 1 TO THE SCHEDULE 13G <TEXT> Document 1 - file: sc13ga107422spe_02142019.htm
</DOCUMENT> </SEC-DOCUMENT>