<SEC-DOCUMENT>0000921895-23-000526-index.html : 20230214 <SEC-HEADER>0000921895-23-000526.hdr.sgml : 20230214 <ACCEPTANCE-DATETIME>20230214114754 ACCESSION NUMBER: 0000921895-23-000526 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230214 DATE AS OF CHANGE: 20230214 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: 23625002 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>sc13ga507422spro_02142023.htm <DESCRIPTION>AMENDMENT NO. 5 TO THE SCHEDULE 13G <TEXT> Document 1 - file: sc13ga507422spro_02142023.htm
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