May 29, 2013 — The social media giant's debut on Wall Street one year ago ran into problems. Trades were delayed and some investors lost money. The Securities and Exchange Commission blames NASDAQ's "poor systems and decision-making."
Mar 15, 2013 — Two hedge funds affiliated with SAC Capital Advisors have agreed to the settlements. They did not admit any wrongdoing.
Nov 26, 2012 — Securities and Exchange Commission Chairman Mary Schapiro will step down on Dec. 14. President Obama has designated SEC Commissioner Elisse Walter to be her successor.