Pirates Prospects is reporting that the Pirates have agreed to terms with RHP Trey Supak, whom they selected in Competitive Balance Round B. The team drafted Supak out of a Texas prep school. Baseball America rated him the 99th best prospect in the draft. The bonus is unknown as yet; the slot amount for the pick is $772,000.
In another note, Jim Callis has tweeted that Mitch Keller signed for $1M. His slot was $886,800.
UPDATE by Charlie: Callis tweets that Supak will also get $1 million, $228,000 above his bonus pool amount.
UPDATE: According to his Twitter account, 22nd rounder Eric Karch, a college senior RHP, has also agreed to terms.