BLUEPRINT MEDICINES CORP

CUSIP: 09627Y109 Class: Common Stock

Laurion Capital Management LP's Holding History (CIK: 0001390202)

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

Q1 2019
Shares 261,904 Value ($000) $20,966 Avg Close — Range —
Q1 2018
Shares 6,400 Value ($000) $587 Avg Close — Range —
Q4 2017
Shares 72,962 Value ($000) $5,502 Avg Close — Range —
Q3 2017
Shares 13,272 Value ($000) $925 Avg Close — Range —
Q1 2017
Shares 50,006 Value ($000) $2,000 Avg Close — Range —
Q4 2016
Shares 60,106 Value ($000) $1,686 Avg Close — Range —