RAMBUS INC DEL

Ticker: RMBS CUSIP: 750917106 Class: EQTY

ING GROEP NV's Holding History (CIK: 0001039765)

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

Q1 2015

Shares 385,402 Value ($000) $4,848 Avg Close $11.76 Range $10.01 - $12.88

Q4 2014

Shares 360,339 Value ($000) $3,993 Avg Close $11.33 Range $9.87 - $12.55

Q3 2014

Shares 288,814 Value ($000) $3,610 Avg Close $12.62 Range $11.27 - $14.77

Q2 2014

Shares 357,698 Value ($000) $5,119 Avg Close $12.36 Range $10.74 - $14.82

Q1 2014

Shares 187,149 Value ($000) $2,014 Avg Close $9.38 Range $8.38 - $11.00

Q4 2013

Shares 30,500 Value ($000) $289 Avg Close $9.01 Range $8.15 - $10.57

Q3 2013

Shares 30,500 Value ($000) $287 Avg Close $9.16 Range $7.95 - $10.85

Q2 2013

Shares 30,500 Value ($000) $262 Avg Close $7.45 Range $5.31 - $8.99

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2015	385,402	$4,848	$11.76	$10.01 - $12.88
Q4 2014	360,339	$3,993	$11.33	$9.87 - $12.55
Q3 2014	288,814	$3,610	$12.62	$11.27 - $14.77
Q2 2014	357,698	$5,119	$12.36	$10.74 - $14.82
Q1 2014	187,149	$2,014	$9.38	$8.38 - $11.00
Q4 2013	30,500	$289	$9.01	$8.15 - $10.57
Q3 2013	30,500	$287	$9.16	$7.95 - $10.85
Q2 2013	30,500	$262	$7.45	$5.31 - $8.99