Exhibit 21.1

Cabaletta Bio, Inc.

The following is a list of subsidiaries of Cabaletta Bio, Inc. as of December 31, 2024.

 

SUBSIDIARY

STATE OR OTHER JURISDICTION OF INCORPORATION OR ORGANIZATION

 

 

Cabaletta Bio, Inc.

Delaware

Cabaletta Bio GmbH

Switzerland

Cabaletta Bio (Germany) GmbH

Germany