IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

Plancorp, LLC's Holding History (CIK: 0001599579)

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

Q4 2023
Shares 8,000 Value ($000) $237 Avg Close — Range —
Q1 2021
Shares 14,000 Value ($000) $113 Avg Close — Range —
Q4 2020
Shares 14,000 Value ($000) $90 Avg Close — Range —
Q3 2020
Shares 14,000 Value ($000) $50 Avg Close — Range —