Brian Johnson, former Manager at Microsoft and his friend Sean Stokke, have both been charged with insider trading by the US securities regulator.
The Securities and Exchange Commission suspected that Mr Jorgenson, 32, tipped off Mr Stokke, 28, about Microsoft news before it was made public.
The regulator said that Mr Stokke traded on the information, and the two shared in the profits.
They are said to have made $393,125 (£240,000) in profits over 18 months.
In a statement, Jenny Durkan, a US attorney said: "For every stock market winner, there is a loser, and trading on confidential inside information is a cheater's way of gaining at the expense of others."
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