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SpaceX stock drops to a new low and loses $1 trillion in value in a month
(www.businessinsider.com)
This is a most excellent place for technology news and articles.
That doesn't make sense so I went and looked it up.
So each employee can sell 20% of their stock (probably options, but since they've had an "Employee Share Purchase Plan" (ESPP) some will hold actual shares). If 80% of someone's holdings are dependent on them staying at SpaceX I doubt many will leave after selling 20%.