COMBIMATRIX CORPORATION

CUSIP: 20009T303 Class: COM

PERKINS CAPITAL MANAGEMENT INC's Holding History (CIK: 0000884300)

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

Q4 2015
Shares 363,473 Value ($000) $266 Avg Close — Range —
Q3 2015
Shares 423,938 Value ($000) $475 Avg Close — Range —
Q2 2015
Shares 432,246 Value ($000) $696 Avg Close — Range —
Q1 2015
Shares 455,855 Value ($000) $866 Avg Close — Range —
Q4 2014
Shares 239,650 Value ($000) $309 Avg Close — Range —
Q3 2014
Shares 98,950 Value ($000) $124 Avg Close — Range —
Q2 2014
Shares 98,950 Value ($000) $212 Avg Close — Range —
Q1 2014
Shares 99,550 Value ($000) $303 Avg Close — Range —
Q4 2013
Shares 194,175 Value ($000) $447 Avg Close — Range —