RPX CORP

CUSIP: 74972G103 Class: COM

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q1 2018
Shares 551,112 Value ($000) $5,891 Avg Close — Range —
Q4 2017
Shares 549,949 Value ($000) $7,392 Avg Close — Range —
Q3 2017
Shares 553,217 Value ($000) $7,347 Avg Close — Range —
Q2 2017
Shares 554,826 Value ($000) $7,740 Avg Close — Range —
Q1 2017
Shares 596,480 Value ($000) $7,157 Avg Close — Range —
Q4 2016
Shares 570,520 Value ($000) $6,161 Avg Close — Range —
Q3 2016
Shares 562,311 Value ($000) $6,010 Avg Close — Range —
Q2 2016
Shares 549,016 Value ($000) $5,035 Avg Close — Range —
Q1 2016
Shares 590,213 Value ($000) $6,680 Avg Close — Range —
Q4 2015
Shares 584,155 Value ($000) $6,426 Avg Close — Range —
Q3 2015
Shares 570,041 Value ($000) $7,821 Avg Close — Range —
Q2 2015
Shares 541,664 Value ($000) $9,154 Avg Close — Range —
Q1 2015
Shares 561,846 Value ($000) $8,085 Avg Close — Range —
Q4 2014
Shares 551,923 Value ($000) $7,605 Avg Close — Range —
Q3 2014
Shares 560,207 Value ($000) $7,692 Avg Close — Range —
Q2 2014
Shares 398,958 Value ($000) $7,081 Avg Close — Range —
Q1 2014
Shares 422,776 Value ($000) $6,883 Avg Close — Range —
Q4 2013
Shares 451,873 Value ($000) $7,637 Avg Close — Range —
Q3 2013
Shares 446,698 Value ($000) $7,834 Avg Close — Range —
Q2 2013
Shares 338,021 Value ($000) $5,678 Avg Close — Range —