File photograph of Investor Carl Icahn speaking at the Wall Street Journal Deals & Deal Makers conference at the New York Stock ExchangeSAN FRANCISCO/NEW YORK (Reuters) – Activist investor Carl Icahn has built a stake of round 100 million shares in Dell Inc and wants the private computer maker to conduct a leveraged recapitalization, complicating founder Michael Dell's effort to take the company personal, CNBC suggested. Icahn, who is famous for shaking up management, has accumulated a stake in Dell representing 6 p.c of the company, CNBC mentioned sources familiar with the investment as saying on Wednesday. …