IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AM's Holding History (CIK: 0001132716)

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

Q4 2023
Shares 1,915,452 Value ($000) $56,793 Avg Close — Range —
Q4 2017
Shares 200,000 Value ($000) $1,282,000 Avg Close — Range —