TETRAPHASE PHARMACEUTICALS I

CUSIP: 88165N105 Class: COMMON STOCK

HBK INVESTMENTS L P's Holding History (CIK: 0001011443)

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

Q2 2015
Shares 70,200 Value ($000) $3,330 Avg Close — Range —
Q1 2015
Shares 67,200 Value ($000) $2,462 Avg Close — Range —