Exhibit 21.1

LIST OF SUBSIDIARIES

The following is a list of subsidiaries of the Company as of December 31, 2015:

 

Subsidiary Legal Name

  

State or other Jurisdiction of Incorporation

Nina Biotherapeutics, Inc.

 

Delaware

Pinta Biotherapeutics, Inc.

 

Delaware

Santa Maria Biotherapeutics, Inc.

 

Delaware

Atara Biotherapeutics Cayman Limited

  

Cayman Islands