TETRAPHASE PHARMACEUTICALS I

CUSIP: 88165N105 Class: COMMON STOCK

FRED ALGER MANAGEMENT, LLC's Holding History (CIK: 0000003520)

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

Q2 2015
Shares 160,201 Value ($000) $7,600 Avg Close — Range —
Q1 2015
Shares 187,958 Value ($000) $6,887 Avg Close — Range —