NANOSPHERE INC

CUSIP: 63009F105 Class: COM

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

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

Q2 2014
Shares 1,116,563 Value ($000) $1,764 Avg Close — Range —
Q1 2014
Shares 663,286 Value ($000) $1,426 Avg Close — Range —