NANOSPHERE INC

CUSIP: 63009f105 Class: COM

DF DENT & CO INC's Holding History (CIK: 0000934999)

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

Q2 2014
Shares 45,000 Value ($000) $71 Avg Close — Range —
Q4 2013
Shares 45,000 Value ($000) $103 Avg Close — Range —
Q3 2013
Shares 45,000 Value ($000) $90 Avg Close — Range —
Q2 2013
Shares 45,000 Value ($000) $138 Avg Close — Range —