MERSANA THERAPEUTICS INC

CUSIP: 59045L106 Class: COM

ArrowMark Colorado Holdings LLC's Holding History (CIK: 0001483859)

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

Q4 2020
Shares 90,000 Value ($000) $2,395 Avg Close — Range —
Q3 2020
Shares 90,000 Value ($000) $1,676 Avg Close — Range —
Q2 2020
Shares 90,000 Value ($000) $2,106 Avg Close — Range —
Q3 2019
Shares 413,525 Value ($000) $653 Avg Close — Range —
Q2 2019
Shares 2,464,415 Value ($000) $9,981 Avg Close — Range —
Q1 2019
Shares 3,216,002 Value ($000) $16,916 Avg Close — Range —
Q4 2018
Shares 2,027,505 Value ($000) $8,272 Avg Close — Range —
Q3 2018
Shares 1,840,333 Value ($000) $18,403 Avg Close — Range —
Q2 2018
Shares 1,250,977 Value ($000) $22,342 Avg Close — Range —
Q1 2018
Shares 932,396 Value ($000) $14,704 Avg Close — Range —
Q4 2017
Shares 899,773 Value ($000) $14,783 Avg Close — Range —
Q3 2017
Shares 477,711 Value ($000) $8,260 Avg Close — Range —
Q2 2017
Shares 350,000 Value ($000) $4,890 Avg Close — Range —