TETRAPHASE PHARMACEUTICALS I

CUSIP: 88165N105 Class: COMMON STOCK

Swiss National Bank's Holding History (CIK: 0001582202)

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

Q1 2016
Shares 46,200 Value ($000) $206 Avg Close — Range —
Q4 2015
Shares 37,300 Value ($000) $374 Avg Close — Range —
Q3 2015
Shares 37,300 Value ($000) $278 Avg Close — Range —
Q2 2015
Shares 31,900 Value ($000) $1,513 Avg Close — Range —
Q1 2015
Shares 31,400 Value ($000) $1,150 Avg Close — Range —
Q4 2014
Shares 27,400 Value ($000) $1,088 Avg Close — Range —