Two decades ago, Itaru Tanimura ended a 12-year run at McKinsey & Co. to lead M3 Inc., an online provider of medical information and services backed by entertainment giant Sony Corp.
What followed was a flurry of acquisitions that turned the Tokyo-based company into a $39 billion global behemoth. M3 now has about 40 subsidiaries and affiliates, including MDLinx Inc. in the U.S. and Britain¡¯s Doctors.net.uk Ltd.
M3 helps pharmaceutical companies, doctors and their patients access information online over its platforms, removing the need for in-person visits ¡ª something that proved important in the time of COVID-19. Its shares have almost doubled this year, surging the most of any company in the 225-issue Nikkei average and taking the fortune of Tanimura to $1.2 billion, according to the Bloomberg Billionaires Index.
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