MERSANA THERAPEUTICS INC

CUSIP: 59045L106 Class: COM

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q2 2025
Shares 34,856 Value ($000) $10 Avg Close — Range —
Q1 2025
Shares 20,100 Value ($000) $7 Avg Close — Range —
Q4 2024
Shares 52,283 Value ($000) $75 Avg Close — Range —
Q3 2024
Shares 32,570 Value ($000) $62 Avg Close — Range —
Q2 2024
Shares 23,470 Value ($000) $47 Avg Close — Range —
Q4 2023
Shares 31,081 Value ($000) $72 Avg Close — Range —
Q3 2023
Shares 42,068 Value ($000) $53 Avg Close — Range —
Q2 2023
Shares 160,303 Value ($000) $527 Avg Close — Range —
Q1 2023
Shares 2,099 Value ($000) $9 Avg Close — Range —
Q3 2022
Shares 742 Value ($000) $5 Avg Close — Range —
Q2 2022
Shares 2,023 Value ($000) $9 Avg Close — Range —
Q1 2022
Shares 18,123 Value ($000) $72 Avg Close — Range —
Q4 2021
Shares 1,323 Value ($000) $8 Avg Close — Range —
Q3 2021
Shares 3,849 Value ($000) $36 Avg Close — Range —
Q1 2021
Shares 8,870 Value ($000) $144 Avg Close — Range —
Q4 2020
Shares 4,007 Value ($000) $107 Avg Close — Range —