COMBIMATRIX CORPORATION

CUSIP: 20009T121 Class: *W EXP 05/01/201

PERCEPTIVE ADVISORS LLC's Holding History (CIK: 0001224962)

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

Q1 2014
Shares 5,000 Value ($000) $9 Avg Close — Range —
Q4 2013
Shares 5,000 Value ($000) $3 Avg Close — Range —
Q3 2013
Shares 5,000 Value ($000) $2 Avg Close — Range —
Q2 2013
Shares 5,000 Value ($000) $1 Avg Close — Range —