X0203 3 2010-11-30 0 0001411158 Anacor Pharmaceuticals Inc ANAC 0001458177 VENROCK HEALTHCARE CAPITAL PARTNERS LP C/O VENROCK 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 0 1 See footnote 2 0001479354 VHCP Co-Investment Holdings, LLC C/O VENROCK 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 0 1 See footnote 2 0001479355 VHCP Management, LLC C/O VENROCK 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 0 1 See footnote 2 0001239242 ROBERTS BRYAN E C/O VENROCK 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 0 1 See footnote 2 Common Stock 2000000 I By Fund 1,690,722 shares of common stock are held directly by Venrock Healthcare Capital Partners, L.P. ("VHCP"). 309,278 shares of common stock are held directly by Venrock Co-Investment Holdings, LLC ("Venrock Co-Investment"). VHCP Management, LLC ("VHCP Management") is the general partner of VHCP and the manager of Venrock Co-Investment and may be deemed to beneficially own these shares. Messrs. Anders Hove and Bryan Roberts are the managing members of VHCP Management and may be deemed to beneficially own these shares. Dr. Hove is a director of the issuer and files separate Section 16 reports. Mr. Roberts and VHCP Management disclaim beneficial ownership of these shares, except to the extent of their respective indirect pecuniary interests therein. The reporting persons may be deemed members of a Section 13(d) group owning more than 10% of the Issuer's shares of common stock. /s/ David L. Stepp, Authorized Signatory 2010-12-02 /s/ David L. Stepp, Authorized Signatory 2010-12-02 /s/ David L. Stepp, Authorized Signatory 2010-12-02 /s/ David L. Stepp, as attorney-in-fact 2010-12-02