BLUEPRINT MEDICINES CORP

CUSIP: 09627Y109 Class: Common Stock

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

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

Q2 2019
Shares 616 Value ($000) $58 Avg Close — Range —
Q1 2019
Shares 2,739 Value ($000) $219 Avg Close — Range —
Q4 2018
Shares 12,055 Value ($000) $650 Avg Close — Range —
Q2 2018
Shares 2,785 Value ($000) $177 Avg Close — Range —
Q4 2017
Shares 6,468 Value ($000) $488 Avg Close — Range —