TETRAPHASE PHARMACEUTICALS I

CUSIP: 88165N105 Class: COMMON STOCK

Ameritas Investment Partners, Inc.'s Holding History (CIK: 0001055980)

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

Q1 2019
Shares 4,338 Value ($000) $6 Avg Close — Range —
Q4 2018
Shares 4,338 Value ($000) $5 Avg Close — Range —
Q3 2018
Shares 4,338 Value ($000) $12 Avg Close — Range —
Q2 2018
Shares 4,338 Value ($000) $15 Avg Close — Range —
Q1 2018
Shares 4,338 Value ($000) $13 Avg Close — Range —
Q4 2017
Shares 4,338 Value ($000) $27 Avg Close — Range —
Q3 2017
Shares 2,696 Value ($000) $18 Avg Close — Range —
Q2 2017
Shares 2,696 Value ($000) $19 Avg Close — Range —
Q1 2017
Shares 2,696 Value ($000) $25 Avg Close — Range —