Ferentz signed a contract with the Patriots on Saturday, Field Yates of ESPN reports.
Ferentz has been on the Patriots' practice squad since falling victim to roster cutdowns in September. The 29-year-old provides interior depth for the offensive line with starting right guard Shaq Mason (calf) currently sidelined.
Ferentz signed a contract with the Patriots on Thursday.
Ferentz spent the last two seasons with Denver, where he appeared in 21 regular-season games and one postseason game. Now with New England, the 27-year-old offensive lineman will look to make the team as a depth and special teams player.
Ferentz was waived Wednesday by the Broncos, Nicki Jhabvala of The Denver Post reports.
Ferentz signed a one-year free-agent tender with the Broncos in April, but was let go Wednesday in order to make room on the roster for newly-signed draft picks De'Angelo Henderson and Chad Kelly. The center has spent his career in a backup role, and will presumably look to continue doing so elsewhere.