NANOSPHERE INC

CUSIP: 63009F105 Class: COM

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q1 2015
Shares 15,510 Value ($000) $4 Avg Close — Range —
Q4 2014
Shares 13,673 Value ($000) $5 Avg Close — Range —
Q3 2014
Shares 5,773 Value ($000) $3 Avg Close — Range —
Q2 2014
Shares 9,573 Value ($000) $15 Avg Close — Range —
Q1 2014
Shares 8,479 Value ($000) $18 Avg Close — Range —
Q4 2013
Shares 8,865 Value ($000) $20 Avg Close — Range —
Q3 2013
Shares 16,265 Value ($000) $33 Avg Close — Range —
Q2 2013
Shares 8,718 Value ($000) $27 Avg Close — Range —