A major shareholder didn't exactly signal confidence in the company with its latest move.Charles Schwab (SCHW -0.47%) saw a dip in its share price on Thursday due to events outside the company's control. That's because the top news item for the brokerage was that a major shareholder unloaded some of its Schwab holdings at a discount.Schwab's stock price sagged in sympathy. By the end of the trading session, the company's shares had lost 0.5% of their value. That compared favorably, but only just, with the S ...