Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
Welsh David S.
  2. Issuer Name and Ticker or Trading Symbol
Five9, Inc. [FIVN]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
C/O ADAMS STREET PARTNERS LLC, ONE NORTH WACKER DRIVE SUITE 2200
3. Date of Earliest Transaction (Month/Day/Year)
04/03/2014
(Street)

CHICAGO, IL 60606
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 04/03/2014   A   25,000 A $ 0 25,000 D (1)  
Common Stock               2,584,821 I See Footnote (2)
Common Stock               2,235,689 I See Footnote (3)
Common Stock               1,269,991 I See Footnote (4)
Common Stock               1,084,176 I See Footnote (5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Welsh David S.
C/O ADAMS STREET PARTNERS LLC
ONE NORTH WACKER DRIVE SUITE 2200
CHICAGO, IL 60606
  X   X    

Signatures

 /s/ Frances Dea, attorney-in-fact   04/07/2014
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The reported shares are owned directly by David Welsh, who is a partner of Adams Street Partners, LLC ("ASP"). ASP 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. Mr. Welsh disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein.
(2) The reported securities are owned directly by AS 2008 (the "Shares") and indirectly by ASP as the managing member of the general partner of AS 2008. The securities owned by AS 2008 may be deemed to be beneficially owned by ASP and David S. Welsh, who is a partner of ASP, and may be deemed to have shared voting and investment power over the shares. Mr. Welsh disclaims beneficial ownership of the Shares except to the extent of his pecuniary interest therein.
(3) The reported securities are owned directly by AS 2009 (the "Shares") and indirectly by ASP as the managing member of the general partner of AS 2009. The securities owned by AS 2009 may be deemed to be beneficially owned by ASP and David S. Welsh, who is a partner of ASP, and may be deemed to have shared voting and investment power over the shares. Mr. Welsh disclaims beneficial ownership of the Shares except to the extent of his pecuniary interest therein.
(4) The reported securities are owned directly by AS 2010 (the "Shares") and indirectly by ASP as the managing member of the general partner of AS 2010. The securities owned by AS 2010 may be deemed to be beneficially owned by ASP and David S. Welsh, who is a partner of ASP, and may be deemed to have shared voting and investment power over the shares. Mr. Welsh disclaims beneficial ownership of the Shares except to the extent of his pecuniary interest therein.
(5) The reported securities are owned directly by AS 2011 (the "Shares") and indirectly by ASP as the managing member of the general partner of AS 2011. The securities owned by AS 2011 may be deemed to be beneficially owned by ASP and David S. Welsh, who is a partner of ASP, and may be deemed to have shared voting and investment power over the shares. Mr. Welsh disclaims beneficial ownership of the Shares except to the extent of his pecuniary interest therein.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.