COMBIMATRIX CORPORATION

CUSIP: 20009T147 Class: *W EXP 03/18/202

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

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

Q3 2017
Shares 4,684 Value ($000) $12 Avg Close — Range —
Q2 2017
Shares 200 Value ($000) $0 Avg Close — Range —