SIERRA ONCOLOGY INC

CUSIP: 82640U107 Class: COMMON

ORBIMED ADVISORS LLC's Holding History (CIK: 0001055951)

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

Q1 2019
Shares 317,104 Value ($000) $542 Avg Close — Range —
Q4 2018
Shares 417,104 Value ($000) $551 Avg Close — Range —
Q3 2018
Shares 767,104 Value ($000) $1,304 Avg Close — Range —
Q2 2018
Shares 1,267,104 Value ($000) $3,751 Avg Close — Range —
Q1 2018
Shares 2,203,704 Value ($000) $4,562 Avg Close — Range —
Q4 2017
Shares 3,203,704 Value ($000) $11,950 Avg Close — Range —
Q3 2017
Shares 3,703,704 Value ($000) $5,741 Avg Close — Range —
Q2 2017
Shares 3,703,704 Value ($000) $4,333 Avg Close — Range —
Q1 2017
Shares 3,703,704 Value ($000) $5,667 Avg Close — Range —