ARTHROCARE CORP

CUSIP: 043136100 Class: CMN

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

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

Q1 2014
Shares 9,280 Value ($000) $447 Avg Close — Range —
Q4 2013
Shares 9,390 Value ($000) $378 Avg Close — Range —
Q3 2013
Shares 9,427 Value ($000) $335 Avg Close — Range —
Q2 2013
Shares 10,042 Value ($000) $347 Avg Close — Range —