ron perelman

When BHP Billiton made its offer to acquire Potash Corp., two residents of Madrid, Spain, made $1.1 million by buying out-of-the-money call options ahead of the announcement, the Securities and Exchange Commission claims. The SEC is suing the investors, and has frozen $1.1 million of their assets.

Famed investor Warren Buffett announced that 40 billionaires have committed to donate at least 50% of their fortunes to charity as part of the Giving Pledge, a project that targets America's richest to pledge to donate their wealth.