IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

MARINER INVESTMENT GROUP LLC's Holding History (CIK: 0001096978)

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

Q1 2016
Shares 34,900 Value ($000) $297 Avg Close — Range —
Q4 2015
Shares 69,851 Value ($000) $948 Avg Close — Range —
Q3 2015
Shares 122,900 Value ($000) $1,180 Avg Close — Range —
Q2 2015
Shares 153,900 Value ($000) $2,213 Avg Close — Range —
Q1 2015
Shares 234,400 Value ($000) $2,098 Avg Close — Range —
Q4 2014
Shares 258,000 Value ($000) $1,574 Avg Close — Range —
Q3 2014
Shares 155,500 Value ($000) $1,647 Avg Close — Range —
Q2 2014
Shares 130,800 Value ($000) $1,550 Avg Close — Range —
Q1 2014
Shares 36,800 Value ($000) $549 Avg Close — Range —