EBay says Craigslist believed eBay broke an agreement not to engage in competitive activity and thereby lost rights granted to it as a shareholder.

In a complaint eBay released Wednesday, the online auctioneer reveals details about the lawsuit it filed last week, claiming that Craigslist unfairly tried to dilute eBay’s stake in it.

Parts of the complaint, mostly those that refer to stock holdings, are still blocked out at Craigslist request, eBay said.

EBay purchased a 28 percent stake in privately held Craigslist in 2004 from an unnamed former Craigslist executive who solicited buyers for his stake.