IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

EMERALD ADVISERS, LLC's Holding History (CIK: 0001015083)

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

Q4 2023
Shares 1,744,981 Value ($000) $51,739 Avg Close — Range —
Q3 2023
Shares 1,811,306 Value ($000) $28,745 Avg Close — Range —
Q2 2023
Shares 983,697 Value ($000) $18,562 Avg Close — Range —