SIERRA ONCOLOGY INC

CUSIP: 82640U404 Class: CMN

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q4 2021
Shares 212 Value ($000) $5 Avg Close — Range —
Q3 2021
Shares 212 Value ($000) $5 Avg Close — Range —
Q2 2021
Shares 212 Value ($000) $4 Avg Close — Range —
Q1 2021
Shares 212 Value ($000) $4 Avg Close — Range —
Q4 2020
Shares 212 Value ($000) $3 Avg Close — Range —
Q3 2020
Shares 212 Value ($000) $2 Avg Close — Range —
Q2 2020
Shares 212 Value ($000) $3 Avg Close — Range —
Q1 2020
Shares 212 Value ($000) $2 Avg Close — Range —