IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

Clearbridge Investments, LLC's Holding History (CIK: 0001348883)

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

Q3 2022
Shares 4,825,543 Value ($000) $23,066 Avg Close — Range —
Q2 2022
Shares 5,372,065 Value ($000) $24,174 Avg Close — Range —
Q1 2022
Shares 5,502,843 Value ($000) $26,194 Avg Close — Range —
Q4 2021
Shares 5,886,930 Value ($000) $43,681 Avg Close — Range —
Q3 2021
Shares 5,975,009 Value ($000) $33,878 Avg Close — Range —
Q2 2021
Shares 5,955,041 Value ($000) $39,244 Avg Close — Range —
Q1 2021
Shares 6,108,685 Value ($000) $49,480 Avg Close — Range —
Q4 2020
Shares 6,892,928 Value ($000) $44,459 Avg Close — Range —
Q3 2020
Shares 7,450,492 Value ($000) $26,822 Avg Close — Range —
Q2 2020
Shares 7,742,804 Value ($000) $35,617 Avg Close — Range —
Q1 2020
Shares 8,307,064 Value ($000) $28,327 Avg Close — Range —
Q4 2019
Shares 9,050,869 Value ($000) $43,173 Avg Close — Range —
Q3 2019
Shares 10,364,463 Value ($000) $25,082 Avg Close — Range —
Q2 2019
Shares 10,463,661 Value ($000) $22,706 Avg Close — Range —
Q1 2019
Shares 8,870,628 Value ($000) $24,039 Avg Close — Range —
Q4 2018
Shares 8,406,481 Value ($000) $40,351 Avg Close — Range —
Q3 2018
Shares 8,083,851 Value ($000) $76,554 Avg Close — Range —
Q2 2018
Shares 9,165,030 Value ($000) $89,176 Avg Close — Range —
Q1 2018
Shares 9,579,449 Value ($000) $100,776 Avg Close — Range —
Q4 2017
Shares 11,071,365 Value ($000) $70,967 Avg Close — Range —
Q3 2017
Shares 11,445,611 Value ($000) $87,559 Avg Close — Range —
Q2 2017
Shares 12,871,696 Value ($000) $91,518 Avg Close — Range —
Q1 2017
Shares 14,428,856 Value ($000) $55,840 Avg Close — Range —
Q4 2016
Shares 13,544,332 Value ($000) $27,630 Avg Close — Range —
Q3 2016
Shares 15,174,726 Value ($000) $40,668 Avg Close — Range —
Q2 2016
Shares 15,539,820 Value ($000) $47,863 Avg Close — Range —
Q1 2016
Shares 14,541,891 Value ($000) $123,897 Avg Close — Range —
Q4 2015
Shares 14,319,106 Value ($000) $194,310 Avg Close — Range —
Q3 2015
Shares 14,487,613 Value ($000) $139,081 Avg Close — Range —
Q2 2015
Shares 14,655,889 Value ($000) $210,752 Avg Close — Range —
Q1 2015
Shares 14,451,730 Value ($000) $129,343 Avg Close — Range —
Q4 2014
Shares 11,436,364 Value ($000) $69,762 Avg Close — Range —
Q3 2014
Shares 10,967,847 Value ($000) $116,149 Avg Close — Range —
Q2 2014
Shares 9,980,315 Value ($000) $118,267 Avg Close — Range —
Q1 2014
Shares 9,298,289 Value ($000) $138,823 Avg Close — Range —
Q4 2013
Shares 8,777,160 Value ($000) $128,761 Avg Close — Range —
Q3 2013
Shares 7,151,140 Value ($000) $121,712 Avg Close — Range —
Q2 2013
Shares 6,388,360 Value ($000) $105,983 Avg Close — Range —