BLUEPRINT MEDICINES CORP

CUSIP: 09627Y109 Class: Common Stock

OBERWEIS ASSET MANAGEMENT INC/'s Holding History (CIK: 0000937886)

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

Q2 2025
Shares 72,500 Value ($000) $9,293 Avg Close — Range —
Q1 2025
Shares 75,000 Value ($000) $6,638 Avg Close — Range —
Q4 2024
Shares 75,000 Value ($000) $6,542 Avg Close — Range —
Q4 2017
Shares 6,700 Value ($000) $505 Avg Close — Range —
Q3 2017
Shares 6,600 Value ($000) $460 Avg Close — Range —
Q2 2017
Shares 6,600 Value ($000) $334 Avg Close — Range —
Q1 2017
Shares 6,600 Value ($000) $264 Avg Close — Range —