TETRAPHASE PHARMACEUTICALS I

CUSIP: 88165N105 Class: COMMON STOCK

THOMPSON DAVIS & CO., INC.'s Holding History (CIK: 0001017284)

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

Q4 2015
Shares 3,825 Value ($000) $38 Avg Close — Range —
Q3 2015
Shares 3,825 Value ($000) $29 Avg Close — Range —
Q2 2015
Shares 3,825 Value ($000) $181 Avg Close — Range —
Q1 2015
Shares 3,825 Value ($000) $140 Avg Close — Range —