SIERRA ONCOLOGY INC

CUSIP: 82640U107 Class: COMMON

FMR LLC's Holding History (CIK: 0000315066)

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

Q1 2018
Shares 170,900 Value ($000) $354 Avg Close — Range —
Q4 2017
Shares 170,900 Value ($000) $637 Avg Close — Range —
Q3 2017
Shares 170,900 Value ($000) $265 Avg Close — Range —
Q2 2017
Shares 170,900 Value ($000) $200 Avg Close — Range —
Q1 2017
Shares 197,100 Value ($000) $302 Avg Close — Range —