NANOSPHERE INC

CUSIP: 63009F105 Class: COM

CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM's Holding History (CIK: 0000919079)

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

Q1 2015
Shares 224,322 Value ($000) $69 Avg Close — Range —
Q4 2014
Shares 224,322 Value ($000) $69 Avg Close — Range —
Q3 2014
Shares 224,322 Value ($000) $128 Avg Close — Range —
Q2 2014
Shares 224,322 Value ($000) $354 Avg Close — Range —
Q1 2014
Shares 100,522 Value ($000) $226 Avg Close — Range —
Q4 2013
Shares 100,522 Value ($000) $216 Avg Close — Range —
Q3 2013
Shares 102,322 Value ($000) $205 Avg Close — Range —
Q2 2013
Shares 100,522 Value ($000) $309 Avg Close — Range —