A company can blame its poor financial performance on a slow economy, world politics -- even the weather. But an investor with a large economic position in the company can hold the company accountable by turning to shareholder activism as a way to increase shareholder value.Despite the worst bear market since the 1930s, activist investors such as Warren Buffett, Bill Ackman of Pershing Square Capital Management and Carl Icahn by all accounts are still finding attractive valuations both on the long and short sided of the equity market. At Stockpickr, we follow the latest activist situations for investors interested in piggybacking of these activist investors. To read more, visit Stockpickr.com. Who's on Stockpickr Answers? Kevin Baker will be on Stockpickr Answers on April 2 to respond to investing and trading questions posed by members of the Stockpickr community. Not a member? Join the Stockpickr community today -- free.