https://www.siliconvalley.com/2019/11/06/uber-shares-fall-as-early-investors-get-first-chance-to-sell/

Uber shares fell sharply Wednesday, the day early investors and insiders could sell their stock in the ride-hailing company for the first time.

Big declines in Uber’s stock price are nothing new, though. Since Uber went public in May in a disappointing debut that nevertheless ranked as one of the biggest by an American tech company, its shares have declined nearly 40%. But Wednesday’s sell-off came after the expiration of the lockup period, the set time after a company’s initial public offering that restricts big shareholders from selling their shares.