IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

Caption Management, LLC's Holding History (CIK: 0001706766)

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

Q3 2023
Shares 40,600 Value ($000) $644 Avg Close — Range —
Q2 2023
Shares 30,000 Value ($000) $566 Avg Close — Range —
Q2 2021
Shares 20,000 Value ($000) $131 Avg Close — Range —
Q1 2021
Shares 20,000 Value ($000) $163 Avg Close — Range —
Q4 2020
Shares 57,100 Value ($000) $368 Avg Close — Range —
Q3 2019
Shares 50,000 Value ($000) $121 Avg Close — Range —
Q2 2019
Shares 80,000 Value ($000) $174 Avg Close — Range —
Q1 2019
Shares 1,200 Value ($000) $3 Avg Close — Range —
Q4 2018
Shares 170,750 Value ($000) $819 Avg Close — Range —
Q3 2018
Shares 77,250 Value ($000) $732 Avg Close — Range —