FORM 4
[ X ] 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
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Azure Parent, L.L.C. 		2. Issuer Name and Ticker or Trading Symbol

CYAN INC [ CYNI ] 		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)

650 CALIFORNIA STREET, 11TH FLOOR 		3. Date of Earliest Transaction (MM/DD/YYYY)

8/3/2015
(Street)

SAN FRANCISCO, CA 94108
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

___ Form filed by One Reporting Person
_ X _ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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   8/3/2015     S    17000   D   (1) (2) 0   I   See Footnotes   (3) (4)
Common Stock   8/3/2015     S    5324789   D   (1) 0   I   See Footnotes   (4) (5)
Common Stock   8/3/2015     S    682912   D   (1) 0   I   See Footnotes   (4) (6)

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 7. Title and Amount of Securities Underlying Derivative Security
(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

Explanation of Responses:
( 1)  Pursuant to the Agreement and Plan of Merger by and among the Issuer, Neptune Acquisition Subsidiary, Inc. and Ciena Corporation ("Ciena") dated May 3, 2015, as amended (the "Merger Agreement"), each share of Issuer common stock will be exchanged for $0.63 in cash and 0.19936 shares of Ciena's common stock at the Effective Time (as defined in the Merger Agreement) by virtue of the merger.
( 2)  Of the reported securities, 8,500 shares are represented by restricted stock units. Pursuant to the Issuer's Non-Employee Director Compensation and Expense Reimbursement Program, all of the restricted stock units vested in full upon the effectiveness of the Merger. Each Issuer restricted stock unit that is vested but not yet settled as of the Effective Time will be deemed paid in shares of Issuer common stock immediately prior to the Effective Time, and the holder of such restricted stock unit will be entitled to receive $0.63 in cash and 0.19936 shares of Ciena's common stock with respect to each such share of Issuer common stock otherwise issuable pursuant to such vested (but not yet settled) restricted stock units.
( 3)  These securities are held directly by Mr. Ferris and were issued to Mr. Ferris in connection with his services to the Issuer as a director. Pursuant to an arrangement with Azure Capital Partners VC Administrators II, L. P. ("Azure GP"), Mr. Ferris will assign to Azure Capital Partners, L.P. ("Azure Manager") any remuneration received for service as a director of the Issuer. Such remuneration will then offset the management fees payable to Azure Manager. (continued in footnote 4)
( 4)  Azure GP is the sole general partner of each of Azure Capital Partners II, L.P. ("ACP II") and Azure Entrepreneurs II, L.P. ("AE II"). The sole general partner of Azure GP is Azure Parent, L.L.C. ("Azure Parent"), which is wholly-owned by Azure Capital Partners, Inc. ("Azure Capital" and together with ACP II, AE II, Azure Manager and Azure GP, the "Azure Entities"). Mr. Ferris, a manager of Azure Parent, serves as the Azure Entities' representative on the Issuer's board of directors. Each of the Azure Entities disclaims beneficial ownership in such securities, except to the extent, if any, of their respective pecuniary interest therein.
( 5)  These shares are held directly by ACP II. Each of the Azure Entities disclaims beneficial ownership in such securities, except to the extent, if any, of their respective pecuniary interest therein.
( 6)  These shares are held directly by AE II. Each of the Azure Entities disclaims beneficial ownership in such securities, except to the extent, if any, of their respective pecuniary interest therein.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Azure Parent, L.L.C.
650 CALIFORNIA STREET, 11TH FLOOR
SAN FRANCISCO, CA 94108 		X X

Azure Capital Partners II LP
650 CALIFORNIA STREET, 11TH FLOOR
SAN FRANCISCO, CA 94108 		X X

Azure Entrepreneurs II L P
650 CALIFORNIA STREET, 11TH FLOOR
SAN FRANCISCO, CA 94108 		X X

Azure Capital Partners VC Administrators II, L.P.
650 CALIFORNIA STREET, 11TH FLOOR
SAN FRANCISCO, CA 94108 		X X

Azure Capital Partners, Inc.
650 CALIFORNIA STREET, 11TH FLOOR
SAN FRANCISCO, CA 94108 		X X


Signatures
Azure Capital Partners II, L.P., By: Azure Capital Partners VC Administrators II, L.P., its sole general partner, By: Azure Parent, L.L.C., its sole general partner, By: /s/ Paul A. Ferris, manager 8/5/2015
** Signature of Reporting Person Date

Azure Entrepreneurs II, L.P., By: Azure Capital Partners VC Administrators II, L.P., its sole general partner, By: Azure Parent, L.L.C., its sole general partner, By: /s/ Paul A. Ferris, manager 8/5/2015
** Signature of Reporting Person Date

Azure Capital Partners VC Administrators II, L.P., By: Azure Parent, L.L.C., its sole general partner, By: /s/ Paul A. Ferris, manager 8/5/2015
** Signature of Reporting Person Date

Azure Parent, L.L.C., By: /s/ Paul A. Ferris, manager 8/5/2015
** Signature of Reporting Person Date

Azure Capital Partners, Inc. By: /s/ Paul A. Ferris, its Secretary 8/5/2015
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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.