COMBIMATRIX CORPORATION

CUSIP: 20009T501 Class: COM PAR

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

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

Q3 2017
Shares 27,685 Value ($000) $207 Avg Close — Range —
Q2 2017
Shares 27,685 Value ($000) $146 Avg Close — Range —
Q1 2017
Shares 25,185 Value ($000) $137 Avg Close — Range —
Q4 2016
Shares 17,315 Value ($000) $46 Avg Close — Range —