Earnings are supposedly going to be announced today, but I wouldn't put much faith into the dates reported by Zacks or anyone else. They never seem to be accurate.
As far as I'm concerned, the financial performance of NBIX should pretty much be a non-issue at this stage, unless they have an unusually high burn rate. I've been waiting, somewhat impatiently, for some report about their scientific progress. Perhaps a call to IR is due.