SC US (TTGP), LTD. sold LIFE

Footnotes

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.2472 to $33.0547, 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 ranges set forth in footnotes (4), (5), (6) and (7) to this Form 4.; SC US SSF 2013 (TTGP), L.L.C. is the general partner of SC U.S. Scout Seed Fund 2013 Management, L.P., which is the general partner of Sequoia Capital U.S. Scout Seed Fund 2013, L.P., which wholly owns Sequoia Capital U.S. Scout Fund IV, L.L.C., which in turn wholly owns Nalrena, L.L.C. and Spelunker Channel Holdings, LLC (collectively, the Scout Funds). As a result, SC US SSF 2013 (TTGP), L.L.C., SC U.S. Scout Seed Fund 2013 Management, L.P., Sequoia Capital U.S. Scout Seed Fund 2013, L.P., and Sequoia Capital U.S. Scout Fund IV, L.L.C. may be deemed to share voting and dispositive power with respect to the shares held by the Scout Funds.; [continued from Footnote 2] Each of SC US SSF 2013 (TTGP), L.L.C., SC U.S. Scout Seed Fund 2013 Management, L.P., Sequoia Capital U.S. Scout Seed Fund 2013, L.P., and Sequoia Capital U.S. Scout Fund IV, L.L.C. disclaims beneficial ownership of the securities held by the Scout Funds except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.