IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

Swiss National Bank's Holding History (CIK: 0001582202)

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

Q4 2023
Shares 480,800 Value ($000) $14,256 Avg Close — Range —
Q3 2023
Shares 480,800 Value ($000) $7,630 Avg Close — Range —
Q2 2023
Shares 476,100 Value ($000) $8,984 Avg Close — Range —
Q1 2023
Shares 428,800 Value ($000) $1,647 Avg Close — Range —
Q4 2022
Shares 479,600 Value ($000) $2,379 Avg Close — Range —
Q3 2022
Shares 470,700 Value ($000) $2,250 Avg Close — Range —
Q2 2022
Shares 467,500 Value ($000) $2,104 Avg Close — Range —
Q1 2022
Shares 479,100 Value ($000) $2,281 Avg Close — Range —
Q4 2021
Shares 445,300 Value ($000) $3,304 Avg Close — Range —
Q3 2021
Shares 441,800 Value ($000) $2,505 Avg Close — Range —
Q2 2021
Shares 428,400 Value ($000) $2,823 Avg Close — Range —
Q1 2021
Shares 428,400 Value ($000) $3,470 Avg Close — Range —
Q4 2020
Shares 395,300 Value ($000) $2,550 Avg Close — Range —
Q3 2020
Shares 395,300 Value ($000) $1,423 Avg Close — Range —
Q2 2020
Shares 386,600 Value ($000) $1,778 Avg Close — Range —
Q1 2020
Shares 331,700 Value ($000) $1,131 Avg Close — Range —
Q4 2019
Shares 286,900 Value ($000) $1,465 Avg Close — Range —
Q3 2019
Shares 280,600 Value ($000) $679 Avg Close — Range —
Q2 2019
Shares 271,700 Value ($000) $590 Avg Close — Range —
Q1 2019
Shares 271,700 Value ($000) $736 Avg Close — Range —
Q4 2018
Shares 263,500 Value ($000) $1,265 Avg Close — Range —
Q3 2018
Shares 254,000 Value ($000) $2,405 Avg Close — Range —
Q2 2018
Shares 254,000 Value ($000) $2,471 Avg Close — Range —
Q1 2018
Shares 218,600 Value ($000) $2,300 Avg Close — Range —
Q4 2017
Shares 161,200 Value ($000) $1,033 Avg Close — Range —
Q3 2017
Shares 138,200 Value ($000) $1,057 Avg Close — Range —
Q2 2017
Shares 138,200 Value ($000) $983 Avg Close — Range —
Q1 2017
Shares 159,400 Value ($000) $617 Avg Close — Range —
Q4 2016
Shares 159,400 Value ($000) $325 Avg Close — Range —
Q3 2016
Shares 159,400 Value ($000) $427 Avg Close — Range —
Q2 2016
Shares 159,400 Value ($000) $491 Avg Close — Range —
Q1 2016
Shares 156,100 Value ($000) $1,289 Avg Close — Range —
Q4 2015
Shares 129,700 Value ($000) $1,760 Avg Close — Range —
Q3 2015
Shares 129,700 Value ($000) $1,245 Avg Close — Range —
Q2 2015
Shares 115,200 Value ($000) $1,657 Avg Close — Range —
Q1 2015
Shares 122,200 Value ($000) $1,094 Avg Close — Range —
Q4 2014
Shares 96,200 Value ($000) $587 Avg Close — Range —
Q3 2014
Shares 94,200 Value ($000) $998 Avg Close — Range —
Q2 2014
Shares 95,800 Value ($000) $1,135 Avg Close — Range —
Q1 2014
Shares 95,800 Value ($000) $1,430 Avg Close — Range —
Q4 2013
Shares 73,700 Value ($000) $1,081 Avg Close — Range —
Q3 2013
Shares 73,700 Value ($000) $1,254 Avg Close — Range —
Q2 2013
Shares 77,500 Value ($000) $1,286 Avg Close — Range —