The bulk of the cash is likely to go to Odyssey Partners, which will maintain control of the company through a complex transaction.
The all-cash buyout offer from Odyssey Partners would be worth about $1.1 billion for all of Stevens's equity.
Micom will be acquired by Odyssey Partners for $16 a share, or $301.3 million.
Odyssey Partners, the New York investor group whose offer of $61.50 a share was accepted by Stevens last week, did not comment.
Odyssey Partners earned an average annual return for its investors of 22 percent over 14 years.
His father is a portfolio manager at Odyssey Partners, a private investment partnership in New York.
He then left to join Odyssey Partners where he worked with Leon Levy.
Her father is a partner in Odyssey Partners, a New York investment firm.
Stevens, citing regulatory hurdles, favors a rival bid from Odyssey Partners, an investment firm.
One of Odyssey Partners' original executives is returning to the buyout boutique after an eight-year absence.