ATARA BIOTHERAPEUTICS INC

CUSIP: 046513107 Class: Common Stock

Walleye Trading LLC's Holding History (CIK: 0001388391)

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

Q4 2020
Shares 10,521 Value ($000) $207 Avg Close — Range —
Q4 2019
Shares 6,427 Value ($000) $106 Avg Close — Range —
Q3 2019
Shares 8,945 Value ($000) $126 Avg Close — Range —
Q2 2019
Shares 2,300 Value ($000) $46 Avg Close — Range —
Q2 2017
Shares 700 Value ($000) $10 Avg Close — Range —