BLUEPRINT MEDICINES CORP

CUSIP: 09627Y109 Class: Common Stock

GILDER GAGNON HOWE & CO LLC's Holding History (CIK: 0000902464)

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

Q4 2019
Shares 4 Value ($000) $0 Avg Close — Range —
Q3 2019
Shares 4 Value ($000) $0 Avg Close — Range —
Q2 2015
Shares 4,710 Value ($000) $125 Avg Close — Range —