IXIA

CUSIP: 45071R109 Class: COM

WESTFIELD CAPITAL MANAGEMENT CO LP's Holding History (CIK: 0001177719)

Note: Option positions (PUT/CALL) are excluded.

Q3 2013
Shares 1,070,537 Value ($000) $16,775 Avg Close — Range —
Q2 2013
Shares 731,817 Value ($000) $13,466 Avg Close — Range —