BLUEPRINT MEDICINES CORP

CUSIP: 09627Y109 Class: Common Stock

WESTFIELD CAPITAL MANAGEMENT CO LP's Holding History (CIK: 0001177719)

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

Q4 2022
Shares 479,467 Value ($000) $21,005 Avg Close — Range —
Q3 2022
Shares 803,643 Value ($000) $52,952 Avg Close — Range —
Q2 2022
Shares 1,384,810 Value ($000) $69,947 Avg Close — Range —
Q1 2022
Shares 1,173,421 Value ($000) $74,958 Avg Close — Range —
Q4 2021
Shares 1,098,691 Value ($000) $117,681 Avg Close — Range —
Q3 2021
Shares 1,215,353 Value ($000) $124,950 Avg Close — Range —
Q2 2021
Shares 1,180,119 Value ($000) $103,803 Avg Close — Range —
Q1 2021
Shares 1,128,487 Value ($000) $109,723 Avg Close — Range —
Q4 2020
Shares 868,067 Value ($000) $97,354 Avg Close — Range —
Q3 2020
Shares 1,060,798 Value ($000) $98,336 Avg Close — Range —
Q2 2020
Shares 1,052,183 Value ($000) $82,070 Avg Close — Range —
Q1 2020
Shares 1,024,607 Value ($000) $59,919 Avg Close — Range —
Q4 2019
Shares 770,636 Value ($000) $61,736 Avg Close — Range —
Q3 2019
Shares 846,959 Value ($000) $62,226 Avg Close — Range —
Q2 2019
Shares 612,380 Value ($000) $57,766 Avg Close — Range —
Q1 2019
Shares 467,041 Value ($000) $37,387 Avg Close — Range —
Q4 2018
Shares 582,826 Value ($000) $31,420 Avg Close — Range —
Q3 2018
Shares 509,380 Value ($000) $39,762 Avg Close — Range —
Q2 2018
Shares 212,980 Value ($000) $13,520 Avg Close — Range —