MERSANA THERAPEUTICS INC

CUSIP: 59045L106 Class: COM

PURA VIDA INVESTMENTS, LLC's Holding History (CIK: 0001590144)

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

Q2 2020
Shares 127,900 Value ($000) $2,993 Avg Close — Range —
Q1 2019
Shares 196,913 Value ($000) $1,036 Avg Close — Range —