"We can confirm on the record that he filed for legal separation and nullity of marriage," Humphries' rep says in a statement.
Kourtney and Kim Take New York: 7 Signs Kim and Kris were doomed from the start
While Kardashian has already filed for divorce, Humphries wants the marriage annulled instead, calling the union a staged-for-TV fraud that he was not aware of. Humphries intended for the nuptials to be genuine, and feels he was duped.
While the basketball player is said to have signed a pre-nup, he claims there are "community and quasi-community assets" at hand. He reportedly also wants Kardashian to pay his attorney's fees.
Kardashian's rep did not immediately respond to a request for comment.