0000950170-23-045450.txt : 20230830
0000950170-23-045450.hdr.sgml : 20230830
20230830162333
ACCESSION NUMBER: 0000950170-23-045450
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20230828
FILED AS OF DATE: 20230830
DATE AS OF CHANGE: 20230830
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Keutzer Timothy
CENTRAL INDEX KEY: 0001798155
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38266
FILM NUMBER: 231225532
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
ownership.xml
4
X0508
4
2023-08-28
0001701108
Spero Therapeutics, Inc.
SPRO
0001798155
Keutzer Timothy
C/O SPERO THERAPEUTICS, INC.
675 MASSACHUSETTS AVENUE, 14TH FLOOR
CAMBRIDGE
MA
02139
false
true
false
false
Chief Development Officer
false
Common Stock
2023-08-28
4
S
false
1854
1.26
D
325290
D
The reported transaction is a sale of common stock effected to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs") that were granted to the Reporting Person on August 26, 2021 pursuant to a "sell to cover" provision included in the RSU Agreement.
/s/ Tamara Joseph, Attorney-in-Fact for Timothy Keutzer
2023-08-30