MERSANA THERAPEUTICS INC

CUSIP: 59045L106 Class: COM

EcoR1 Capital, LLC's Holding History (CIK: 0001587114)

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

Q4 2024
Shares 11,328,000 Value ($000) $16,199 Avg Close — Range —
Q3 2024
Shares 19,364,688 Value ($000) $36,599 Avg Close — Range —
Q2 2024
Shares 19,364,688 Value ($000) $38,923 Avg Close — Range —
Q1 2024
Shares 19,364,688 Value ($000) $86,754 Avg Close — Range —
Q4 2023
Shares 19,364,688 Value ($000) $44,926 Avg Close — Range —
Q3 2023
Shares 19,364,688 Value ($000) $24,593 Avg Close — Range —
Q2 2022
Shares 310,960 Value ($000) $1,437 Avg Close — Range —
Q1 2022
Shares 326,578 Value ($000) $1,303 Avg Close — Range —
Q2 2019
Shares 1,392,231 Value ($000) $5,639 Avg Close — Range —
Q1 2019
Shares 2,300,000 Value ($000) $12,098 Avg Close — Range —
Q3 2018
Shares 495,618 Value ($000) $4,956 Avg Close — Range —