TETRAPHASE PHARMACEUTICALS I

CUSIP: 88165N105 Class: COMMON STOCK

BRIDGEWAY CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001107261)

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

Q4 2018
Shares 109,800 Value ($000) $124 Avg Close — Range —
Q3 2018
Shares 184,800 Value ($000) $510 Avg Close — Range —
Q2 2018
Shares 79,800 Value ($000) $285 Avg Close — Range —
Q1 2018
Shares 79,800 Value ($000) $245 Avg Close — Range —
Q4 2017
Shares 79,800 Value ($000) $503 Avg Close — Range —
Q3 2017
Shares 79,800 Value ($000) $546 Avg Close — Range —
Q2 2017
Shares 79,800 Value ($000) $569 Avg Close — Range —
Q1 2017
Shares 154,800 Value ($000) $1,423 Avg Close — Range —
Q4 2016
Shares 280,900 Value ($000) $1,132 Avg Close — Range —
Q3 2016
Shares 280,900 Value ($000) $1,076 Avg Close — Range —
Q2 2016
Shares 361,717 Value ($000) $1,555 Avg Close — Range —
Q2 2015
Shares 25,400 Value ($000) $1,205 Avg Close — Range —
Q1 2015
Shares 50,000 Value ($000) $1,832 Avg Close — Range —
Q4 2014
Shares 50,000 Value ($000) $1,986 Avg Close — Range —
Q3 2014
Shares 50,000 Value ($000) $998 Avg Close — Range —
Q2 2014
Shares 50,000 Value ($000) $675 Avg Close — Range —