Commodities: CEO Molineaux Acquires 12,868 Of Calithera Biosciences Inc >CALA

SOURCE: Form 4 
ISSUER: Calithera Biosciences Inc 
FILER: Molineaux Susan 
TITLE: Chief Executive Officer 
DATE               TRANSACTION              SHARES       PRICE           VALUE 
12/5/17            Exercise*                12,868       $1.65         $21,257 
OWNERSHIP: 15,368 (Direct)  360,892 (Indirect) 
  * - 7,568 shares exercised 5 years, 5 months before expiration. 
      5,300 shares exercised 6 years before expiration. 
  The Form 4 is filed with the Securities and Exchange Commission by insiders 
  to report transactions in their companies' shares.  Open market purchases 
  and sales must be reported within two business days of the transaction. 
Insider Data Source: The Washington Service 
                     ([email protected] or 301-913-5100)