Exhibit 21

 

List of Subsidiaries

 

Subsidiary*

 

Jurisdiction of
Incorporation

 

Name Under which
Subsidiary does Business

 

 

 

 

 

Ingenex, Inc.

 

Delaware

 

This subsidiary is currently inactive

 

 

 

 

 

Developmental Therapeutics, Inc.

 

Delaware

 

Developmental Therapeutics

 


*  We own 100% of the outstanding common stock of Developmental Therapeutics, Inc. and 81% of the outstanding common stock of Ingenex, Inc.