SEC Form 4
FORM 4 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
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
Addington Hills Ltd.

(Last) (First) (Middle)
BAYSIDE EXECUTIVE PARK, BUILDING NO. 1
WEST BAY STREET, P.O. BOX N-4837

(Street)
NASSAU, BAHAMAS C5

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
IXIA [ XXIA ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
11/14/2011
4. If Amendment, Date of Original Filed (Month/Day/Year)
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. 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 11/14/2011 S 4,500 D $11.07 (1) 10,073,394 D (2)
Common Stock 11/15/2011 S 15,500 D $11.1401 (3) 10,057,894 D (2)
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 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: 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
1. Name and Address of Reporting Person*
Addington Hills Ltd.

(Last) (First) (Middle)
BAYSIDE EXECUTIVE PARK, BUILDING NO. 1
WEST BAY STREET, P.O. BOX N-4837

(Street)
NASSAU, BAHAMAS C5

(City) (State) (Zip)
1. Name and Address of Reporting Person*
Tango Trust

(Last) (First) (Middle)
BAYSIDE EXECUTIVE PARK, BUILDING NO. 1
WEST BAY STREET, P.O. BOX N-4837

(Street)
NASSAU, BAHAMAS C5

(City) (State) (Zip)
1. Name and Address of Reporting Person*
Rhone Trustees (Bahamas) Ltd

(Last) (First) (Middle)
BAYSIDE EXECUTIVE PARK, BUILDING NO. 1
WEST BAY STREET AND BLAKE ROAD

(Street)
NASSAU, BAHAMAS C5

(City) (State) (Zip)
Explanation of Responses:
1. This transaction was executed in multiple trades at prices ranging from $11.03 to $11.13. The price reported reflects the weighted average sale price. The Reporting Person has provided to the Issuer and will provide to any shareholder of the Issuer, or to the SEC Staff, upon request, information regarding the number of shares sold at each price within the range.
2. These securities are owned (i) directly by Addington Hills Ltd., (ii) indirectly by The Tango Trust and (iii) indirectly by Rhone Trustees (Bahamas) Ltd. (formerly Pictet Overseas Trust Corp. Ltd.), as trustees of The Tango Trust under Trust Deed dated 28 October 2009. The Tango Trust owns all of the voting equity interest in Addington Hills Ltd.
3. This transaction was executed in multiple trades at prices ranging from $11.00 to $11.28. The price reported reflects the weighted average sale price. The Reporting Person has provided to the Issuer and will provide to any shareholder of the Issuer, or to the SEC Staff, upon request, information regarding the number of shares sold at each price within the range.
Remarks:
Katrina Montgomery on behalf of Nassnom Investments Corp., as a Director of Addington Hills Ltd. 11/16/2011
Kimberly Strachan, on behalf of Nassnom Investments Corp., as a Director of Addington Hills Ltd. 11/16/2011
Katrina Montgomery, on behalf of Nomnass Investments Corp., as a Director of Addington Hills Ltd. 11/16/2011
Kimberly Strachan, on behalf of Nomnass Investments Corp., as a Director of Addington Hills Ltd. 11/16/2011
Katrina Montgomery, on behalf of Rhone Trustees (Bahamas) Ltd., (Formerly Pictet Overseas Trust Corp. Ltd.) on behalf of itself and as Trustees of the Tango Trust 11/16/2011
Kimberly Strachan, on behalf of Rhone Trustees (Bahamas) Ltd., (Formerly Pictet Overseas Trust Corp. Ltd.) on behalf of itself and as Trustees of The Tango Trust 11/16/2011
** 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).
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