PEGA has always (it seems) released its numbers toward the end of the allotted disclosure time. Disclosure deadlines used to be shorter for Qs 1,2 and 3 and longer for Q4 / annual releases, I'm not sure if this is still true, I don't keep up with that stuff as much as I used to.
Last year the Q4 release was toward the end of the first week in March if I'm not mistaken.
Good find on the earnings release dates and while the info gives the consensus earnings estimates, etc., the most important thing for PEGA will be the top line revenue number and forward guidance. I'd love to see something north of $70 million for the quarter, it would validate the potential in this space to which Gartner and others have alluded...from $1.6 billion in 2006 to $6 billion in 2011, or something like that.