COMBIMATRIX CORPORATION

CUSIP: 20009T303 Class: COM

UBS Group AG's Holding History (CIK: 0001610520)

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

Q4 2015
Shares 4,053 Value ($000) $3 Avg Close — Range —
Q3 2015
Shares 3,916 Value ($000) $4 Avg Close — Range —
Q2 2015
Shares 963 Value ($000) $2 Avg Close — Range —
Q4 2014
Shares 3,990 Value ($000) $5 Avg Close — Range —