BLUEPRINT MEDICINES CORP

CUSIP: 09627Y109 Class: Common Stock

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

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

Q1 2018
Shares 3,135 Value ($000) $287 Avg Close — Range —
Q4 2017
Shares 3,135 Value ($000) $236 Avg Close — Range —
Q3 2017
Shares 3,305 Value ($000) $230 Avg Close — Range —
Q3 2016
Shares 3,900 Value ($000) $116 Avg Close — Range —
Q3 2015
Shares 73,360 Value ($000) $1,566 Avg Close — Range —
Q2 2015
Shares 78,612 Value ($000) $2,082 Avg Close — Range —