Uber Technologies on Monday lost its second-most-important executive in a shakeup stemming from an internal investigation into sexual harassment charges. The changes at the top reportedly could include the temporary loss of Uber’s founder and chief executive, Travis Kalanick.

Emil Michael — who served as the company’s senior vice president of business and a key lieutenant to Kalanick — is out.

“I can confirm that Emil Michael is no longer with the company,” Uber spokesperson Matthew Wing told the E-Commerce Times. “I have no additional comment beyond that.”

Toxic Environment

The Michael ouster came at a critical juncture in the company’s short history. Former U.S. Attorney General Eric Holder reportedly has presented findings of his investigation into corporate culture at the firm, following reports of widespread sexual harassment.

Holder, now a partner at the law firm of Covington & Burling, presented his findings to the Uber board, according to multiple reports, and those findings will be made public Tuesday. Among the recommended changes are a leave of absence for Kalanick, widely blamed for fostering a problematic corporate culture at the firm.

“From all accounts it’s just an incredibly toxic environment,” said Rebecca Lindland, executive analyst at Kelley Blue Book.

“When you’re building a company that’s still relatively new, you can’t grow with that kind of toxic environment very long,” she told the E-Commerce Times.

Thumbs Down

The shakeup follows months of reports that Uber operates like a Silicon Valley version of Game of Thrones, with employees pitted against each other for the sake of pleasing management.

There have been numerous complaints from female engineers who said they were victims of sexual harassment. Further, they were subjected to…