Five9, Inc. — Director's Dealing 2015

May 19, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Five9, Inc. (FIVN)
CIK: 0001288847
Period of Report: 2015-05-15

Reporting Person: ADAMS STREET PARTNERS LLC (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-05-15	Common Stock	A	27173	—	Acquired	52173	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2584821	Indirect
Common Stock	2235689	Indirect
Common Stock	1269991	Indirect
Common Stock	1084176	Indirect

Footnotes

F1: The reported shares (the "Shares") are owned directly by David Welsh, who is a partner of Adams Street Partners, LLC. Adams Street Partners, LLC is the managing member of the general partner of Adams Street 2008 Direct Fund, L.P. ("AS 2008"), Adams Street 2009 Direct Fund, L.P. ("AS 2009"), Adams Street 2010 Direct Fund, L.P. ("AS 2010") and the managing member of the general partner of the general partner of Adams Street 2011 Direct Fund LP ("AS 2011") (such funds collectively, the "Funds"). By agreement with the Funds, Mr. Welsh is deemed to hold the Shares for the benefit of the Funds. The Shares may be deemed to be beneficially owned by Adams Street Partners, LLC. David Brett, Jeffrey T. Diehl, Elisha P. Gould, Robin Murray, Sachin Tulyani, Craig D. Waslin, and David S. Welsh, each of whom is a partner of Adams Street Partners, LLC (or a subsidiary thereof), may be deemed to have shared voting and investment power over the Shares.

F2: (continued from Footnote 1) Adams Street Partners, LLC and David Brett, Jeffrey T. Diehl, Elisha P. Gould, Robin Murray, Sachin Tulyani, Craig D. Waslin, and David S. Welsh disclaim beneficial ownership of the Shares except to the extent of their pecuniary interest therein.

F3: The reported shares (the "Shares") are owned directly by Adams Street 2008 Direct Fund, L.P. ("AS 2008") and indirectly by Adams Street Partners, LLC, as the managing member of the general partner of AS 2008. The Shares owned by AS 2008 may be deemed to be beneficially owned by Adams Street Partners, LLC. David Brett, Jeffrey T. Diehl, Elisha P. Gould, Robin Murray, Sachin Tulyani, Craig D. Waslin, and David S. Welsh, each of whom is a partner of Adams Street Partners, LLC (or a subsidiary thereof), may be deemed to have shared voting and investment power over the Shares. Adams Street Partners, LLC and David Brett, Jeffrey T. Diehl, Elisha P. Gould, Robin Murray, Sachin Tulyani, Craig D. Waslin, and David S. Welsh disclaim beneficial ownership of the Shares except to the extent of their pecuniary interest therein.

F4: The reported shares (the "Shares") are owned directly by Adams Street 2009 Direct Fund, L.P. ("AS 2009") and indirectly by Adams Street Partners, LLC, as the managing member of the general partner of AS 2009. The Shares owned by AS 2009 may be deemed to be beneficially owned by Adams Street Partners, LLC. David Brett, Jeffrey T. Diehl, Elisha P. Gould, Robin Murray, Sachin Tulyani, Craig D. Waslin, and David S. Welsh, each of whom is a partner of Adams Street Partners, LLC (or a subsidiary thereof), may be deemed to have shared voting and investment power over the Shares. Adams Street Partners, LLC and David Brett, Jeffrey T. Diehl, Elisha P. Gould, Robin Murray, Sachin Tulyani, Craig D. Waslin, and David S. Welsh disclaim beneficial ownership of the Shares except to the extent of their pecuniary interest therein.

F5: The reported shares (the "Shares") are owned directly by Adams Street 2010 Direct Fund, L.P. ("AS 2010") and indirectly by Adams Street Partners, LLC, as the managing member of the general partner of AS 2010. The Shares owned by AS 2010 may be deemed to be beneficially owned by Adams Street Partners, LLC. David Brett, Jeffrey T. Diehl, Elisha P. Gould, Robin Murray, Sachin Tulyani, Craig D. Waslin, and David S. Welsh, each of whom is a partner of Adams Street Partners, LLC (or a subsidiary thereof), may be deemed to have shared voting and investment power over the Shares. Adams Street Partners, LLC and David Brett, Jeffrey T. Diehl, Elisha P. Gould, Robin Murray, Sachin Tulyani, Craig D. Waslin, and David S. Welsh disclaim beneficial ownership of the Shares except to the extent of their pecuniary interest therein.

F6: The reported shares (the "Shares") are owned directly by Adams Street 2011 Direct Fund LP ("AS 2011") and indirectly by Adams Street Partners, LLC, as the managing member of the general partner of AS 2011's general partner. The shares owned by AS 2011 may be deemed to be beneficially owned by Adams Street Partners, LLC. David Brett, Jeffrey T. Diehl, Elisha P. Gould, Robin Murray, Sachin Tulyani, Craig D. Waslin, and David S. Welsh, each of whom is a partner of Adams Street Partners, LLC (or a subsidiary thereof), may be deemed to have shared voting and investment power over the Shares. Adams Street Partners, LLC and David Brett, Jeffrey T. Diehl, Elisha P. Gould, Robin Murray, Sachin Tulyani, Craig D. Waslin, and David S. Welsh disclaim beneficial ownership of the Shares except to the extent of their pecuniary interest therein.