Jabal was vice president of finance at Lytro and has held several finance positions at Google.
Shea has been CFO at three affiliated, privately held companies.
Campbell was CFO of McKesson, a health care company. He will replace Daniel Henry, who plans to retire.
Kimble was CFO at Huntington Bancshares.
Starr is serving as treasurer and will become CFO in July.
Nasdaq OMX Group is partnering with SharesPost to launch a marketplace called Nasdaq Private Market, in which shares of unlisted companies will trade. They hope to debut the platform later this year.