COMBIMATRIX CORPORATION

CUSIP: 20009T303 Class: COM

VANGUARD GROUP INC's Holding History (CIK: 0000102909)

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

Q4 2015
Shares 199,952 Value ($000) $148 Avg Close — Range —
Q3 2015
Shares 199,952 Value ($000) $230 Avg Close — Range —
Q2 2015
Shares 199,952 Value ($000) $322 Avg Close — Range —
Q1 2015
Shares 190,252 Value ($000) $361 Avg Close — Range —
Q4 2014
Shares 184,048 Value ($000) $237 Avg Close — Range —
Q3 2014
Shares 182,248 Value ($000) $228 Avg Close — Range —
Q2 2014
Shares 118,214 Value ($000) $254 Avg Close — Range —
Q1 2014
Shares 80,493 Value ($000) $245 Avg Close — Range —
Q4 2013
Shares 55,443 Value ($000) $128 Avg Close — Range —
Q3 2013
Shares 55,443 Value ($000) $159 Avg Close — Range —
Q2 2013
Shares 55,443 Value ($000) $176 Avg Close — Range —