Sec Form 4 Filing - Hatfield Michael L @ CYAN INC - 2015-08-03

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 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

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1. Name and Address of Reporting Person Hatfield Michael L 2. Issuer Name and Ticker or Trading Symbol CYAN INC [ CYNI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) President (Last) (First) (Middle) C/O CYAN, INC., 1383 N. MCDOWELL BLVD., SUITE 300 3. Date of Earliest Transaction (MM/DD/YY) 08/03/2015 (Street) PETALUMA, CA94954 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 08/03/2015 X 900,000 A $ 3.62 3,204,739 D Common Stock 08/03/2015 S( 1 ) 576,332 D $ 5.65 2,628,407 D Common Stock 08/03/2015 D 2,628,407 ( 2 ) D 0 D

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Common Stock Warrants (right to buy) $ 3.62 08/03/2015 X 900,000 ( 5 ) 12/15/2017 Common Stock 900,000 $ 0 0 D Employee Stock Option (right to buy) $ 2.35 08/03/2015 D 250,000 ( 6 ) 12/13/2020 Common Stock 250,000 $ 0 0 D Employee Stock Option (right to buy) $ 3.2 08/03/2015 D 400,000 ( 7 ) 09/24/2022 Common Stock 400,000 $ 0 0 D Performance Restricted Stock Units ( 8 ) 08/03/2015 A 102,272 ( 9 ) ( 9 ) Common Stock 102,272 $ 0 102,272 D Performance Restricted Stock Units ( 8 ) 08/03/2015 D 102,272 ( 9 )( 10 ) ( 9 )( 10 ) Common Stock 102,272 $ 0 0 D 8% Convertible Notes due 2019 $ 2.44 08/03/2015 D 4,000,000 ( 11 ) 12/14/2019 Common Stock ( 11 ) $ 0 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Hatfield Michael L C/O CYAN, INC. 1383 N. MCDOWELL BLVD., SUITE 300 PETALUMA, CA94954 X President Signatures /s/ Kenneth M. Siegel, by power of attorney 08/03/2015 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The warrants were automatically exercised on a cashless basis immediately prior to the effective time of the merger, at an exercise price of $3.62 per share. As a result of the cashless exercise, the Issuer withheld 576,332 warrant shares to pay the exercise price and issued the remaining 323,668 shares to the Reporting Person. ( 2 )Of the reported securities, 232,840 shares are represented by restricted stock units. ( 3 )Pursuant to the Merger Agreement between the Issuer 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 common stock. ( 4 )Pursuant to the Merger Agreement, the restricted stock units will be assumed by Ciena and converted into a restricted stock unit for 0.224 shares of Ciena common stock per share of Issuer common stock. ( 5 )Pursuant to their terms, the warrants were exercisable immediately prior to the effective time of the merger. ( 6 )Shares subject to the option are fully vested and immediately exercisable. Pursuant to the Merger Agreement, the option will be assumed by Ciena and converted into an option to purchase 0.224 shares of Ciena common stock for each share of Issuer common stock at an exercise price equal to the current exercise price divided by 0.224 per share. ( 7 )Shares subject to the option vest in forty-eight equal monthly installments beginning on October 25, 2012. Pursuant to the Merger Agreement, the option will be assumed by Ciena and converted into an option to purchase 0.224 shares of Ciena common stock for each share of Issuer common stock at an exercise price equal to the current exercise price divided by 0.224 per share. ( 8 )Each performance restricted stock unit represents a contingent right to receive one share of Issuer common stock. ( 9 )The performance restricted stock units are subject to the achievement of certain performance objectives relating to 2015 revenue goals. To the extent the applicable performance goals are achieved, 50% of performance restricted stock units are scheduled to vest on the date the achievement of the performance goals are certified after completion of the performance period and the remaining 50% are scheduled to vest on the first business day in 2017. ( 10 )Pursuant to the Merger Agreement, the performance restricted stock units will be assumed by Ciena and converted into a performance restricted stock unit for 0.224 shares of Ciena common stock per share of Issuer common stock. ( 11 )Represents principal amount of convertible promissory notes. Pursuant to the Merger Agreement, the notes will become convertible into the right to receive merger consideration equivalent at an effective conversion rate of approximately 460.4 shares of Cyan common stock per $1,000 in principal amount of notes converted.

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