IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

J. Goldman & Co LP's Holding History (CIK: 0001412741)

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

Q4 2018
Shares 1,004,876 Value ($000) $4,823 Avg Close — Range —
Q3 2018
Shares 296,113 Value ($000) $2,804 Avg Close — Range —