SIERRA ONCOLOGY INC

CUSIP: 82640U107 Class: COMMON

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

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

Q3 2019
Shares 79,671 Value ($000) $31 Avg Close — Range —
Q2 2019
Shares 103,911 Value ($000) $58 Avg Close — Range —
Q1 2019
Shares 80,799 Value ($000) $138 Avg Close — Range —
Q4 2018
Shares 349,258 Value ($000) $461 Avg Close — Range —
Q3 2018
Shares 394,258 Value ($000) $670 Avg Close — Range —
Q2 2018
Shares 143,991 Value ($000) $426 Avg Close — Range —
Q1 2018
Shares 23,520 Value ($000) $49 Avg Close — Range —