BLUEPRINT MEDICINES CORP

CUSIP: 09627Y109 Class: Common Stock

LOOMIS SAYLES & CO L P's Holding History (CIK: 0000312348)

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

Q3 2022
Shares 325,815 Value ($000) $21,468 Avg Close — Range —
Q2 2022
Shares 329,760 Value ($000) $16,656 Avg Close — Range —
Q1 2022
Shares 438,022 Value ($000) $27,980 Avg Close — Range —
Q4 2021
Shares 379,099 Value ($000) $40,605 Avg Close — Range —
Q3 2021
Shares 389,328 Value ($000) $40,027 Avg Close — Range —
Q2 2021
Shares 395,368 Value ($000) $34,777 Avg Close — Range —
Q1 2021
Shares 403,402 Value ($000) $39,223 Avg Close — Range —
Q4 2020
Shares 355,391 Value ($000) $39,857 Avg Close — Range —
Q3 2020
Shares 357,488 Value ($000) $33,139 Avg Close — Range —
Q2 2020
Shares 309,199 Value ($000) $24,117 Avg Close — Range —
Q4 2019
Shares 426,978 Value ($000) $34,205 Avg Close — Range —
Q3 2019
Shares 439,280 Value ($000) $32,274 Avg Close — Range —
Q2 2019
Shares 375,268 Value ($000) $35,399 Avg Close — Range —
Q1 2019
Shares 370,767 Value ($000) $29,680 Avg Close — Range —
Q4 2018
Shares 357,395 Value ($000) $19,267 Avg Close — Range —
Q3 2018
Shares 84,253 Value ($000) $6,577 Avg Close — Range —