IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

Capital Research Global Investors's Holding History (CIK: 0001422848)

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

Q3 2018
Shares 7,095,570 Value ($000) $67,195 Avg Close — Range —
Q2 2018
Shares 9,431,000 Value ($000) $91,764 Avg Close — Range —
Q1 2018
Shares 5,508,000 Value ($000) $57,944 Avg Close — Range —