COMBIMATRIX CORPORATION

CUSIP: 20009T303 Class: COM

CITIGROUP INC's Holding History (CIK: 0000831001)

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

Q4 2014
Shares 18,051 Value ($000) $23 Avg Close — Range —
Q3 2014
Shares 17,400 Value ($000) $22 Avg Close — Range —
Q2 2014
Shares 17,590 Value ($000) $37 Avg Close — Range —
Q1 2014
Shares 17,400 Value ($000) $53 Avg Close — Range —
Q4 2013
Shares 17,400 Value ($000) $40 Avg Close — Range —
Q3 2013
Shares 8,566 Value ($000) $24 Avg Close — Range —
Q2 2013
Shares 3,650 Value ($000) $11 Avg Close — Range —