ATARA BIOTHERAPEUTICS INC

CUSIP: 046513107 Class: Common Stock

EXENCIAL WEALTH ADVISORS, LLC's Holding History (CIK: 0001576151)

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

Q2 2019
Shares 10,500 Value ($000) $211 Avg Close — Range —
Q1 2019
Shares 10,500 Value ($000) $417 Avg Close — Range —
Q4 2018
Shares 6,000 Value ($000) $208 Avg Close — Range —