Some of the biggest names in the corporate world sold a record $69 billion in stock this year as share valuations surged to record highs, new data from Securities and Exchange Commission (SEC) filings show. According to the latest numbers from InsiderScore/Verity, via CNBC, sales by CEOs, founders, and corporate insiders have climbed 30 percent from last year to $69 billion. This is also up 79 percent compared to the 10-year average. Experts averred that this figure is expected to swell in December as this is typically an active month ahead of tax season. A vast portion of the sales was concentrated among a few individuals, with Ben Silverman, director of research at InsiderScore/Verity, describing the top four as “super sellers.” Tesla Motors CEO Elon Musk was at the top of the list at $10 billion. Former Amazon president and CEO Jeff Bezos shed $9.97 billion. The Walton family cashed …