0000950170-24-011501.txt : 20240205
0000950170-24-011501.hdr.sgml : 20240205
20240205205334
ACCESSION NUMBER: 0000950170-24-011501
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20240201
FILED AS OF DATE: 20240205
DATE AS OF CHANGE: 20240205
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Keutzer Timothy
CENTRAL INDEX KEY: 0001798155
ORGANIZATION NAME:
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38266
FILM NUMBER: 24597785
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]
ORGANIZATION NAME: 03 Life Sciences
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
2024-02-01
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 Operating Officer
false
Common Stock
2024-02-01
4
A
false
239731
0
A
565021
D
Common Stock
2024-02-02
4
S
false
30971
1.36
D
534050
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 February 1, 2025, subject to the Reporting Person's continued service through the applicable vesting date.
The reported transaction is a sale of common stock effected to cover tax withholding obligations in connection with the vesting of RSUs that were granted to the Reporting Person on February 1, 2022 and February 1, 2023 pursuant to a "sell to cover" provision included in each RSU Agreement.
Represents the weighted average sales price per share. The shares sold at prices ranging from $1.36 to $1.42 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.
/s/ Tamara Joseph, Attorney-in-Fact for Timothy Keutzer
2024-02-05