Uber is in bad need of hailing itself some good news.

The ride-hailing service, which is enduring a PR nightmare amid an ongoing investigation into its workplace culture, could see chief business officer Emil Michael depart as soon as Monday, reported The Wall Street Journal on Sunday. Uber didn't immediately respond to a request for comment by TheStreet.

Michael reportedly oversees strategy initiatives including mergers, acquisitions and fundraising.

To say Uber is hemorrhaging talent may be a gross understatement.

Uber told employees this week that more than 20 people have been fired after a company investigation into harassment claims, marking one of the most aggressive responses by the ride-hailing startup to its controversy thus far.

The company's finance head Gautam Gupta decided to leave this week.

Uber announced in February that it was commissioning a pair of investigations into allegations of discrimination and sexual harassment made by Susan Fowler, a former engineer at the company. Lawfirm Perkins Coie LLP presented the results of its investigation to Uber employees on Tuesday, which focused on how to resolve the allegations of bullying, retaliation and sexual harassment.

To be sure, the loss of top talent comes at a bad time for Uber as the likes of Apple (AAPL) - Get Report and Tesla (TSLA) - Get Report explore self-driving capabilities. Meanwhile, General Motors (GM) - Get Report and Ford (F) - Get Report are pushing deeper into the ride-sharing market. 

Here are five top executives besides Gupta who have left the company.

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