Updated July 29, 7:03 p.m. ET
The Bills inked their first draft pick on Thursday, announcing the signing of seventh-round NT Michael Jasper.
Jasper played offensive guard at Bethel University (Tenn.) but will play nose tackle with the Bills.
Read more about Jasper's journey to the NFL in this profile written in May by PFW's Kevin Fishbain.
The Bills also signed fourth-round OT Chris Hairston to a four-year deal with a $415,900 signing bonus, according to Aaron Wilson of Scout.com. Hairston could be the team's right tackle of the future.
Thursday evening, the Bills announced the signings of Hairson, sixth-round LB Johnny White and seventh-round CB Justin Rogers.
On Friday, they signed their top pick, Alabama DE Marcell Dareus. According to ESPN's Adam Schefter, the No. 4 overall pick in the draft received a four-year, $20.4 million, fully-guaranteed deal.
The team also announced the signings of fourth-round S Da'Norris Searcy and fifth-round RB Johnny White on Friday, both alums of the University of North Carolina.
Later Friday, the Bills announced that the team agreed to a deal with second-round DB Aaron Williams.
On Saturday, the team agreed to terms with third-round ILB Kelvin Sheppard, the last of the draft picks to sign.