[5] At age 23, following his father's unexpected death, Wenig took over as CEO of then-struggling Nastech Pharmaceutical, raising $5 million in venture capital.

During his time as marketplace chief, this rose to nearly 160 million, by focusing on "m-commerce", shopping on mobile devices.

[7] In October 2014, it was announced that once the eBay/PayPal demerger was complete, Wenig would become CEO of eBay, replacing John Donahoe.

[10][11][12] An internal eBay investigation found that, while Wenig’s communications were inappropriate, there was no evidence that he knew in advance about or authorized the actions that would later become the cyberstalking case.

A subsequent cyberstalking and harassment campaign against the newsletter's authors led to charges against seven members of eBay's global security team.

[22] On 28 March 1993, Wenig married Cindy Lee Horowitz, a lawyer, and fellow graduate of Columbia University School of Law in a ceremony at the Huntington (Long Island) Jewish Center.