0000950170-23-064189.txt : 20231115
0000950170-23-064189.hdr.sgml : 20231115
20231115161715
ACCESSION NUMBER: 0000950170-23-064189
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20231113
FILED AS OF DATE: 20231115
DATE AS OF CHANGE: 20231115
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Rajavelu Esther
CENTRAL INDEX KEY: 0001903716
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38266
FILM NUMBER: 231410805
MAIL ADDRESS:
STREET 1: 26 LANDSDOWNE STREET
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
ownership.xml
4
X0508
4
2023-11-13
0001701108
Spero Therapeutics, Inc.
SPRO
0001903716
Rajavelu Esther
C/O SPERO THERAPEUTICS, INC.
675 MASSACHUSETTS AVENUE, 14TH FLOOR
CAMBRIDGE
MA
02139
false
true
false
false
See Remarks
false
Common Stock
2023-11-13
4
A
false
300000
0
A
300000
D
Consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of common stock upon vesting. The RSUs vest in four equal annual installments beginning on November 6, 2024, subject to the Reporting Person's continued service through the applicable vesting date.
Chief Financial Officer and Chief Business Officer
/s/ Tamara Joseph, Attorney-in-Fact for Esther Rajavelu
2023-11-15