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: Hummer Winblad Equity Partners V, LLC (10% Owner)
Reporting Person: HUMMER WINBLAD VENTURE PARTNERS V LP (10% Owner)
Reporting Person: HUMMER WINBLAD VENTURE PARTNERS V A LP (10% Owner)
Reporting Person: Hummer John (10% Owner)
Reporting Person: WINBLAD ANN L (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-05-15	Common Stock	J	27173	$0.00	Acquired	52173	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	8410041	Indirect

Footnotes

F1: The reported shares are owned directly by Mitchell Kertzman, who is a managing member of Hummer Winblad Equity Partners V, L.L.C. ("HWEP V"), which is the general partner of Hummer Winblad Venture Partners V, L.P. ("HWVP V") and Hummer Winblad Venture Partners V-A, L.P. ("HWVP VA"). By agreement with HWEP V, Mr. Kertzman holds the shares for the benefit of HWEP V.

F2: Shares are owned directly by HWVP V as nominee for HWVP V and HWVP VA. John Hummer and Ann Winblad are each managing members of HWEP V, which is the general partner of HWVP V and HWVP VA. HWEP V, Mr. Hummer and Ms. Winblad disclaim beneficial ownership of all securities held by HWVP V, except to the extent of their pecuniary interests therein.