This guy is famous for doing this type of thing when big companies are in proxy battles. The MSFT / YAHOO saga continues…

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Billionaire investor Carl Icahn officially launched a proxy contest to unseat Yahoo Inc.’s entire board, writing in a letter to Chairman Roy Bostock that Yahoo directors have “acted irrationally and lost the faith of shareholders” and Microsoft Corp.

Mr. Icahn, who recently amassed a stake in Yahoo, nominated 10 members for the Yahoo board, including himself, lieutenant Keith Meister, Dallas Mavericks owner Mark Cuban and former Viacom Inc. Chief Executive Frank J. Biondi Jr. Mr. Cuban sold his company, Broadcast.com, to Yahoo in 1999 and Mr. Biondi has worked with Mr. Icahn in past proxy fights.

Full story here: http://online.wsj.com/article/SB121085637987295175.html?mod=hps_us_whats_news