IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

CIBC WORLD MARKET INC.'s Holding History (CIK: 0001421224)

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

Q4 2013
Shares 25,520 Value ($000) $374 Avg Close — Range —
Q3 2013
Shares 29,264 Value ($000) $498 Avg Close — Range —
Q2 2013
Shares 20,470 Value ($000) $340 Avg Close — Range —