SIERRA ONCOLOGY INC

CUSIP: 82640U107 Class: COMMON

CITADEL ADVISORS LLC's Holding History (CIK: 0001423053)

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

Q4 2019
Shares 107,605 Value ($000) $37 Avg Close — Range —
Q3 2019
Shares 1,338,727 Value ($000) $523 Avg Close — Range —
Q2 2019
Shares 1,338,727 Value ($000) $750 Avg Close — Range —
Q1 2019
Shares 1,338,745 Value ($000) $2,289 Avg Close — Range —
Q4 2018
Shares 1,832,074 Value ($000) $2,418 Avg Close — Range —
Q3 2018
Shares 1,832,042 Value ($000) $3,114 Avg Close — Range —
Q2 2018
Shares 1,283,451 Value ($000) $3,799 Avg Close — Range —
Q2 2017
Shares 11,010 Value ($000) $13 Avg Close — Range —