ATARA BIOTHERAPEUTICS INC

CUSIP: 046513107 Class: Common Stock

ALGERT GLOBAL LLC's Holding History (CIK: 0001275218)

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

Q4 2021
Shares 13,553 Value ($000) $214 Avg Close — Range —
Q3 2021
Shares 18,053 Value ($000) $323 Avg Close — Range —
Q2 2021
Shares 12,170 Value ($000) $189 Avg Close — Range —
Q4 2019
Shares 29,742 Value ($000) $490 Avg Close — Range —