Exhibit 21.1

LIST OF SUBSIDIARIES

The following is a list of subsidiaries of the Company as of December 31, 2016:

 

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

Atara Biotherapeutics Ireland Limited

  

Ireland