EX-21.1 3 spro-ex211_429.htm EX-21.1

Exhibit 21.1

SUBSIDIARIES OF SPERO THERAPEUTICS, INC.

Subsidiary |  | Jurisdiction
New Pharma License Holdings |  | Malta
Spero Cantab, Inc. |  | Delaware
Spero Cantab UK Limited |  | England and Wales
Spero Europe, Ltd. |  | England and Wales
Spero Gyrase, Inc. |  | Delaware
Spero Legacy STI, Inc. |  | Delaware
Spero Potentiator, Inc. |  | Delaware
Spero Potentiator PTY LTD |  | Australia
Spero Securities Corporation |  | Massachusetts