Christoffersen Ralph E

SERIES B PREFERRED STOCK

SERIES C PREFERRED STOCK

COMMON STOCK

SERIES A PREFERRED STOCK

COMMON STOCK

SERIES D PREFERRED STOCK

Series A Preferred Stock

Warrant (right to buy)

Warrant (right to buy)

Series C Preferred Stock

Series D Preferred Stock

Common Stock

Stock option (right to buy)

Common Stock

Common Stock

Common Stock, $0.01 par value

Stock Option (Right to Buy)

Non Employee Director Restricted Stock Units

Non Employee Restricted Stock Units

Non Employee Stock Options (Rights to Purchase)

Non Employee Stock Options (Right to Purchase)

Common Stock

Common Stock

Series B Preferred Stock

Common Stock, $0.01 par value

Common Stock, $0.01 par value