TETRAPHASE PHARMACEUTICALS I

CUSIP: 88165N105 Class: COMMON STOCK

Walleye Trading LLC's Holding History (CIK: 0001388391)

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

Q4 2018
Shares 72,275 Value ($000) $82 Avg Close — Range —
Q2 2018
Shares 13,178 Value ($000) $47 Avg Close — Range —
Q1 2018
Shares 50,000 Value ($000) $154 Avg Close — Range —