Special Report

The Largest Mergers of the Last 20 Years

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20. Pfizer Inc. and Pharmacia Corp.
> Total transaction value: $60.5 billion
> Transaction announced: 2002

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19. T-Mobile US, Inc. and SoftBank Group Corp. (Spring Corp.)
> Total transaction value: $63.9 billion
> Transaction announced: 2018

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18. Pfizer Inc. and Wyeth Corp.
> Total transaction value: $64.1 billion
> Transaction announced: 2009

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17. Bayer AG and Monsanto Co.
> Total transaction value: $64.5 billion
> Transaction announced: 2016

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16. AT&T, Inc. and DIRECTV
> Total transaction value: $64.5 billion
> Transaction announced: 2014

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15. Private Group and EMC Corp.
> Total transaction value: $64.7 billion
> Transaction announced: 2015

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14. British American Tobacco plc and Reynolds American, Inc.
> Total transaction value: $66.1 billion
> Transaction announced: 2016

Source: Scott Eisen / Getty Images for Patrick Dempsey Center

13. Cigna Holding Co. and Express Scripts Holding Co.
> Total transaction value: $67.7 billion
> Transaction announced: 2018

12. H.J. Heinz Co. and Kraft Foods Group, Inc.
> Total transaction value: $70.7 billion
> Transaction announced: 2015

Source: Michael Vi / iStock Editorial via Getty Images

11. Actavis Plc and Allergan, Inc.
> Total transaction value: $72.8 billion
> Transaction announced: 2014

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