X0202 4 2005-03-14 0001120295 IXIA XXIA 0001134226 GINSBERG ERROL C/O IXIA 26601 WEST AGOURA ROAD CALABASAS CA 91302 1 1 0 0 President and CEO Common Stock 2005-03-14 4 S 0 2000 18.6000 D 5060417 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-14 4 S 0 3000 18.6500 D 5057417 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-14 4 S 0 9900 18.7000 D 5047517 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-14 4 S 0 200 18.7100 D 5047317 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-14 4 S 0 400 18.7200 D 5046917 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-14 4 S 0 600 18.7300 D 5046317 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-14 4 S 0 2200 18.7500 D 5044117 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-14 4 S 0 300 18.7600 D 5043817 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-14 4 S 0 1000 18.8000 D 5042817 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-14 4 S 0 400 18.8500 D 5042417 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-15 4 S 0 200 18.5900 D 5042217 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-15 4 S 0 3235 18.6000 D 5038982 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-15 4 S 0 2662 18.6100 D 5036320 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-15 4 S 0 600 18.6200 D 5035720 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-15 4 S 0 603 18.6500 D 5035117 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-15 4 S 0 200 18.6600 D 5034917 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-15 4 S 0 10000 18.8000 D 5024917 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-15 4 S 0 1000 18.8100 D 5023917 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-15 4 S 0 1500 18.8200 D 5022417 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-16 4 S 0 1216 18.3500 D 5021201 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-16 4 S 0 200 18.3600 D 5021001 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-16 4 S 0 1000 18.3800 D 5020001 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-16 4 S 0 1265 18.3900 D 5018736 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-16 4 S 0 2635 18.4000 D 5016101 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-16 4 S 0 100 18.4300 D 5016001 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-16 4 S 0 2000 18.5000 D 5014001 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-16 4 S 0 1000 18.5500 D 5013001 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 Common Stock 2005-03-16 4 S 0 1000 18.8000 D 5012001 I By Errol Ginsberg and Annette R. Michelson Family Trust dated 10/13/1999 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Errol Ginsberg and Annette R. Michelson, or their successor, as Trustees of the Errol Ginsberg and Annette R. Michelson Family Trust dated October 13, 1999, as amended (the "Ginsberg and Michelson Family Trust"), on October 25, 2004. These shares are beneficially owned (i) directly by the Ginsberg and Michelson Family Trust and (ii) indirectly by Errol Ginsberg. Mr. Ginsberg is a director and officer (President and Chief Executive Officer) of the Issuer. Ronald W. Buckly, Attorney-in-Fact for Errol Ginsberg 2005-03-16