TETRAPHASE PHARMACEUTICALS I

CUSIP: 88165N105 Class: COMMON STOCK

UBS ASSET MANAGEMENT AMERICAS INC's Holding History (CIK: 0000861177)

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

Q1 2016
Shares 11,500 Value ($000) $53 Avg Close — Range —
Q4 2015
Shares 12,400 Value ($000) $124 Avg Close — Range —
Q3 2015
Shares 12,400 Value ($000) $93 Avg Close — Range —
Q2 2015
Shares 12,400 Value ($000) $588 Avg Close — Range —
Q1 2015
Shares 9,400 Value ($000) $344 Avg Close — Range —
Q4 2014
Shares 8,900 Value ($000) $353 Avg Close — Range —