diaDexus, Inc.

CUSIP: 25245P106 Class: COM

GAGNON SECURITIES LLC's Holding History (CIK: 0001125725)

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

Q3 2013
Shares 43,500 Value ($000) $79 Avg Close — Range —
Q2 2013
Shares 53,000 Value ($000) $41 Avg Close — Range —