TETRAPHASE PHARMACEUTICALS I

CUSIP: 88165N105 Class: COMMON STOCK

PDT Partners, LLC's Holding History (CIK: 0001564702)

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

Q2 2017
Shares 191,952 Value ($000) $1,369 Avg Close — Range —
Q1 2017
Shares 157,287 Value ($000) $1,445 Avg Close — Range —
Q4 2014
Shares 25,598 Value ($000) $1,016 Avg Close — Range —