TETRAPHASE PHARMACEUTICALS I

CUSIP: 88165N105 Class: COMMON STOCK

PRICE T ROWE ASSOCIATES INC /MD/'s Holding History (CIK: 0000080255)

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

Q2 2019
Shares 163,600 Value ($000) $79 Avg Close — Range —
Q1 2019
Shares 164,465 Value ($000) $220 Avg Close — Range —
Q4 2018
Shares 164,265 Value ($000) $186 Avg Close — Range —
Q3 2018
Shares 128,965 Value ($000) $356 Avg Close — Range —
Q2 2018
Shares 66,299 Value ($000) $237 Avg Close — Range —
Q1 2018
Shares 66,199 Value ($000) $203 Avg Close — Range —
Q4 2017
Shares 83,900 Value ($000) $529 Avg Close — Range —
Q3 2017
Shares 28,800 Value ($000) $197 Avg Close — Range —
Q2 2017
Shares 16,800 Value ($000) $120 Avg Close — Range —
Q1 2017
Shares 16,800 Value ($000) $154 Avg Close — Range —
Q4 2016
Shares 16,800 Value ($000) $68 Avg Close — Range —
Q3 2016
Shares 16,900 Value ($000) $65 Avg Close — Range —
Q2 2016
Shares 16,900 Value ($000) $73 Avg Close — Range —
Q1 2016
Shares 16,800 Value ($000) $78 Avg Close — Range —
Q4 2015
Shares 16,800 Value ($000) $169 Avg Close — Range —