ATARA BIOTHERAPEUTICS INC

CUSIP: 046513107 Class: Common Stock

Aperio Group, LLC's Holding History (CIK: 0001364615)

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

Q4 2020
Shares 25,896 Value ($000) $508 Avg Close — Range —
Q3 2020
Shares 31,269 Value ($000) $405 Avg Close — Range —
Q2 2020
Shares 16,708 Value ($000) $243 Avg Close — Range —
Q1 2020
Shares 17,008 Value ($000) $145 Avg Close — Range —
Q2 2019
Shares 3,116 Value ($000) $63 Avg Close — Range —