RPX CORP

CUSIP: 74972G103 Class: COM

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

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

Q1 2016
Shares 10,982 Value ($000) $124 Avg Close — Range —
Q4 2015
Shares 13,281 Value ($000) $146 Avg Close — Range —
Q3 2015
Shares 12,944 Value ($000) $178 Avg Close — Range —
Q2 2015
Shares 10,185 Value ($000) $172 Avg Close — Range —
Q3 2014
Shares 433,045 Value ($000) $5,946 Avg Close — Range —
Q2 2014
Shares 444,617 Value ($000) $7,892 Avg Close — Range —
Q1 2014
Shares 509,625 Value ($000) $8,296 Avg Close — Range —
Q4 2013
Shares 491,289 Value ($000) $8,302 Avg Close — Range —
Q3 2013
Shares 333,244 Value ($000) $5,842 Avg Close — Range —
Q2 2013
Shares 219,556 Value ($000) $3,688 Avg Close — Range —