Space Exploration Technologies (SPCX) President Gwynne Shotwell recently filed to sell 342,170 shares worth roughly $52 million, a headline that could quickly raise concerns about insider selling. Yet the company is already facing a much larger wave of post-IPO share unlocks, with hundreds of billions of dollars in previously restricted stock set to become tradable through year-end. Against that backdrop, a $52 million sale by one of SpaceX’s most senior executives looks more like background activity than a red flag. In August, a $100 billion lockup expiration failed to crash the stock, showcasing how the company's future prospects are more important in the grand scheme of things.