The option is worth around $7 million. The Giants can still sign him to a long-term deal (Vacchiano, May 1).
"We think he's a good player, so we exercised the option," General Manager Jerry Reese said on Thursday.
In three years with the Giants, Amukamara has started 27 games -- including 16 in 2013. He has three career interceptions, one each year, and two forced fumbles. He has 133 total tackles.
Amukamara will make $1.5 million next season (Raanan, May 1).
The deadline to pick up the option was Saturday.
A belated, but expected, move by the Giants on a player who got off to a slow start on his career and is beginning to play "like a first-round pick," to quote GM Jerry Reese.
Prince is currently penciled in as a starter at RCB across from free-agent signee Dominique Rodgers-Cromartie and along with Walter Thurmond, Trumaine McBride, Zach Bowman and Jayron Hosley gives the Giants a formidable group.
DC Perry Fewell likes to employ five DBs on the majority of defensive snaps, so the more corners the Giants can lock up, the better. DRC was signed for for five years this offseason, and now with Prince in the fold the Giants have their starting corners set for the next two seasons.
McBride was inked to a 2-year contract and Thurmond was signed to a one-year, "show-me" deal worth $3 million and hopefully he'll play well enough to earn an extension.
The salary cap is expected to increase again next year, possibly by $10 million, so the money earmarked for Prince in year five will be built in.