Trivia: When Joshua calls the KSI technician to ask what the blast range of the Seed is, the technician's ringtone is the Transformers theme song.
Trivia: One of the KSI Transformer prototypes transforms into a Cadillac Cien, which is the same car Tom Lincoln drove in The Island, also directed by Michael Bay.
Chosen answer: It's not explained where he is. The most likely assumption is that he is probably married to Carly living somewhere. He is not in the movie because it is mainly the choice of the writers to not have him in the movie.
Casual Person