MERSANA THERAPEUTICS INC

CUSIP: 59045L106 Class: COM

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q3 2020
Shares 28,705 Value ($000) $534 Avg Close — Range —
Q4 2017
Shares 756 Value ($000) $12 Avg Close — Range —