IXYS CORP

CUSIP: 46600W106 Class: COMMON STOCK

PRINCIPAL FINANCIAL GROUP INC's Holding History (CIK: 0001126328)

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

Q1 2014
Shares 10,148 Value ($000) $115 Avg Close — Range —
Q4 2013
Shares 10,356 Value ($000) $134 Avg Close — Range —
Q3 2013
Shares 10,547 Value ($000) $102 Avg Close — Range —
Q2 2013
Shares 385,513 Value ($000) $4,264 Avg Close — Range —