MERSANA THERAPEUTICS INC

CUSIP: 59045L106 Class: COM

GREAT WEST LIFE ASSURANCE CO /CAN/'s Holding History (CIK: 0001046192)

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

Q3 2023
Shares 44,554 Value ($000) $0 Avg Close — Range —
Q2 2023
Shares 44,554 Value ($000) $0 Avg Close — Range —
Q1 2023
Shares 44,554 Value ($000) $0 Avg Close — Range —
Q4 2022
Shares 44,554 Value ($000) $0 Avg Close — Range —
Q3 2022
Shares 22,635 Value ($000) $153 Avg Close — Range —
Q2 2022
Shares 3,638 Value ($000) $17 Avg Close — Range —
Q1 2022
Shares 3,638 Value ($000) $15 Avg Close — Range —
Q4 2021
Shares 3,638 Value ($000) $23 Avg Close — Range —
Q3 2021
Shares 3,638 Value ($000) $34 Avg Close — Range —
Q2 2021
Shares 3,638 Value ($000) $49 Avg Close — Range —
Q1 2021
Shares 3,638 Value ($000) $58 Avg Close — Range —
Q4 2020
Shares 3,638 Value ($000) $96 Avg Close — Range —
Q3 2020
Shares 3,638 Value ($000) $68 Avg Close — Range —
Q2 2020
Shares 3,638 Value ($000) $84 Avg Close — Range —