MERSANA THERAPEUTICS INC

CUSIP: 59045L106 Class: COM

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND's Holding History (CIK: 0001535845)

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

Q1 2023
Shares 84,000 Value ($000) $345 Avg Close — Range —
Q4 2022
Shares 84,000 Value ($000) $492 Avg Close — Range —
Q3 2022
Shares 162,700 Value ($000) $1,100 Avg Close — Range —
Q2 2022
Shares 42,300 Value ($000) $195 Avg Close — Range —
Q1 2022
Shares 379,000 Value ($000) $1,512 Avg Close — Range —