IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

BAXTER BROS INC's Holding History (CIK: 0001096783)

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

Q4 2023
Shares 13,750 Value ($000) $408 Avg Close — Range —
Q3 2023
Shares 13,750 Value ($000) $218 Avg Close — Range —
Q2 2023
Shares 13,750 Value ($000) $259 Avg Close — Range —
Q1 2023
Shares 85,550 Value ($000) $329 Avg Close — Range —
Q4 2022
Shares 85,550 Value ($000) $424 Avg Close — Range —
Q3 2022
Shares 87,000 Value ($000) $416 Avg Close — Range —
Q2 2022
Shares 87,000 Value ($000) $391 Avg Close — Range —
Q1 2022
Shares 87,000 Value ($000) $414 Avg Close — Range —
Q4 2021
Shares 86,800 Value ($000) $644 Avg Close — Range —
Q3 2021
Shares 88,300 Value ($000) $501 Avg Close — Range —
Q2 2021
Shares 88,300 Value ($000) $582 Avg Close — Range —
Q1 2021
Shares 86,800 Value ($000) $703 Avg Close — Range —
Q4 2020
Shares 87,300 Value ($000) $563 Avg Close — Range —
Q3 2020
Shares 88,300 Value ($000) $318 Avg Close — Range —
Q2 2020
Shares 88,300 Value ($000) $406 Avg Close — Range —
Q1 2020
Shares 88,300 Value ($000) $301 Avg Close — Range —
Q4 2019
Shares 78,300 Value ($000) $400 Avg Close — Range —
Q3 2019
Shares 78,300 Value ($000) $189 Avg Close — Range —
Q2 2019
Shares 78,300 Value ($000) $170 Avg Close — Range —
Q1 2019
Shares 67,300 Value ($000) $182 Avg Close — Range —
Q4 2018
Shares 28,800 Value ($000) $138 Avg Close — Range —
Q3 2018
Shares 30,800 Value ($000) $292 Avg Close — Range —
Q2 2018
Shares 30,800 Value ($000) $300 Avg Close — Range —
Q1 2018
Shares 55,800 Value ($000) $587 Avg Close — Range —
Q4 2017
Shares 58,000 Value ($000) $372 Avg Close — Range —
Q3 2017
Shares 58,000 Value ($000) $444 Avg Close — Range —
Q2 2017
Shares 58,000 Value ($000) $412 Avg Close — Range —
Q1 2017
Shares 58,000 Value ($000) $224 Avg Close — Range —
Q4 2016
Shares 48,000 Value ($000) $98 Avg Close — Range —
Q3 2016
Shares 34,000 Value ($000) $91 Avg Close — Range —
Q2 2016
Shares 18,700 Value ($000) $58 Avg Close — Range —
Q4 2015
Shares 20,700 Value ($000) $281 Avg Close — Range —
Q3 2015
Shares 18,700 Value ($000) $269 Avg Close — Range —
Q2 2015
Shares 18,700 Value ($000) $269 Avg Close — Range —
Q1 2015
Shares 18,700 Value ($000) $167 Avg Close — Range —