BLUEPRINT MEDICINES CORP

CUSIP: 09627Y109 Class: Common Stock

SABBY MANAGEMENT, LLC's Holding History (CIK: 0001535610)

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

Q1 2017
Shares 50,000 Value ($000) $2,000 Avg Close — Range —
Q1 2016
Shares 29,624 Value ($000) $535 Avg Close — Range —
Q3 2015
Shares 308,504 Value ($000) $6,583 Avg Close — Range —
Q2 2015
Shares 301,804 Value ($000) $7,995 Avg Close — Range —