Sec Form 4 Filing - Alexander Matthew S @ IXIA - 2015-11-17

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 Alexander Matthew S 2. Issuer Name and Ticker or Trading Symbol IXIA [ XXIA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Sr. VP, General Counsel (Last) (First) (Middle) C/O IXIA, 26601 WEST AGOURA ROAD 3. Date of Earliest Transaction (MM/DD/YY) 11/17/2015 (Street) CALABASAS, CA91302 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 11/17/2015 S 106 ( 1 ) D $ 13.0758 28,661 ( 2 ) D Common Stock 11/17/2015 S 85 ( 3 ) D $ 13.0758 28,576 D Common Stock 11/17/2015 S 76 ( 4 ) D $ 13.0758 28,500 D Common Stock 11/17/2015 S 175 ( 5 ) D $ 13.0758 28,325 D Common Stock 11/17/2015 S 39 ( 6 ) D $ 13.0758 28,286 D Common Stock 11/17/2015 S 234 ( 7 ) D $ 13.0745 28,052 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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Alexander Matthew S C/O IXIA 26601 WEST AGOURA ROAD CALABASAS, CA91302 Sr. VP, General Counsel Signatures Matthew S. Alexander 11/19/2015 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Restricted Stock Units which had originally been granted on 10/06/2011 for 4,500 shares vested as to 282 shares and 106 of such shares were sold to pay withholding taxes applicable as a result of the issuance of such shares. ( 2 )Includes 924 shares acquired under the Ixia Employee Stock Purchase Plan on 10/31/2015. ( 3 )Restricted Stock Units which had originally been granted on 10/04/2012 for 3,600 shares vested as to 225 shares and 85 of such shares were sold to pay withholding taxes applicable as a result of the issuance of such shares. ( 4 )Restricted Stock Units which had originally been granted on 10/10/2013 for 3,200 shares vested as to 200 shares and 76 of such shares were sold to pay withholding taxes applicable as a result of the issuance of such shares. ( 5 )Restricted Stock Units which had originally been granted on 06/26/2014 for 7,500 shares vested as to 468 shares and 175 of such shares were sold to pay withholding taxes applicable as a result of the issuance of such shares. ( 6 )Restricted Stock Units which had originally been granted on 10/02/2014 for 1,600 shares vested as to 100 shares and 39 of such shares were sold to pay withholding taxes applicable as a result of the issuance of such shares. ( 7 )Restricted Stock Units which had originally been granted on 02/27/2015 for 10,000 shares vested as to 625 shares and 234 of such shares were sold to pay withholding taxes applicable as a result of the issuance of such shares.

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).

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