TETRAPHASE PHARMACEUTICALS I

CUSIP: 88165N105 Class: COMMON STOCK

BAKER BROS. ADVISORS LP's Holding History (CIK: 0001263508)

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

Q2 2018
Shares 935,000 Value ($000) $3,338 Avg Close — Range —
Q1 2018
Shares 935,000 Value ($000) $2,870 Avg Close — Range —
Q4 2017
Shares 935,000 Value ($000) $5,891 Avg Close — Range —
Q3 2017
Shares 935,000 Value ($000) $6,395 Avg Close — Range —