ImmunoGen Stock Nearly Doubled On Thursday: What Happened? By: TalkMarkets November 30, 2023 at 20:35 PM EST Shares of ImmunoGen Inc. close to doubled this morning after AbbVie Inc. said it will buy the cancer therapies company for $10.1 billion. Read More >> Related Stocks: AbbVie ImmunoGen, Inc. - Common Stock Pfizer Seagen Inc. - Common Stock