VITAL THERAPIES INC

CUSIP: 92847R104 Class: COM

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AM's Holding History (CIK: 0001132716)

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

Q2 2017
Shares 188,000 Value ($000) $545,000 Avg Close — Range —
Q1 2017
Shares 200,000 Value ($000) $800,000 Avg Close — Range —
Q1 2015
Shares 15,000 Value ($000) $375,000 Avg Close — Range —
Q4 2014
Shares 10,000 Value ($000) $249,000 Avg Close — Range —