Transaction Details

Footnotes

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $37.005 to $37.62, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range. | The shares are held directly by Canaan VIII, L.P. ("Canaan LP") and reflect a reduction for shares previously distributed, for no consideration, pro rata to the partners of Canaan LP and the members of its general partner, Canaan Partners VIII LLC ("Canaan LLC" and together with Canaan LP, the "Canaan Entities"), including the Reporting Person, representing each such person's proportional interest in the shares held by Canaan LP. Such distributions were made in accordance with the exemptions afforded by Rule 16a-9 and Rule 16a-13 under the Securities Exchange Act of 1934. | Canaan LLC is the sole general partner of Canaan LP. Investment and voting decisions with respect to the securities held by Canaan LP are made by the managers of Canaan LLC, collectively. The Reporting Person disclaims beneficial ownership of the securities held by the Canaan Entities, except to the extent of his pecuniary interest, if any, in such securities by virtue of the limited liability company interests he owns in Canaan LLC. The Canaan Entities have instituted a communications-screen policy with respect to securities matters relating to the Issuer, and the Reporting Person did not participate in this investment decision. | The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $35.065 to $36.04, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range. | The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $36.06 to $37.035, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range. | The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $37.08 to $37.20, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range. | Includes 26,957 shares received in distributions described in footnote (2) above.