KPCB XVI Associates, LLC bought AMBQ

Footnotes

The Series C Convertible Preferred Stock and Series D Convertible Preferred Stock automatically converted into Common Stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering of common stock and had no expiration date.; All shares are held for convenience in the name of "KPCB Holdings, Inc., as nominee" for the accounts of such individuals and entities. The managing member of Kleiner Perkins Caufield & Byers XVI, LLC ("KPCB XVI") and KPCB XVI Founders Fund, LLC ("KPCB XVI Founders") is KPCB XVI Associates, LLC ("KPCB XVI Associates"). L. John Doerr, Beth Seidenberg, Randy Komisar, Theodore E. Schlein, and Wen Hsieh, the managing members of KPCB XVI Associates, exercise shared voting and dispositive control over the shares held by KPCB XVI and KPCB XVI Founders. Such managing members disclaim beneficial ownership of all shares held by KPCB XVI and KPCB XVI Founders except to the extent of their pecuniary interest therein.; Consists of 95,683 shares of Series D Convertible Preferred Stock held by KPCB XVI that automatically converted into 95,683 shares of Common Stock, and 3,275 shares of Series D Convertible Preferred Stock held by KPCB XVI Founders that automatically converted into 3,275 shares of Common Stock.