TOPEKA, Kan. (AP) — The independent candidate trying to unseat U.S. Sen. Pat Roberts in Kansas says he owns assets worth between $21.5 million and $86 million.

Greg Orman on Monday released a copy of the financial disclosure report that candidates for federal office must file each quarter.

It shows that since the beginning of 2013, Orman and his wife, Sybil, have earned between $917,000 and $4.5 million in income. Most of the assets and income are associated with Orman’s business interests.

Orman is a 45-year-old Olathe businessman hoping to unseat the three-term Republican incumbent in the November election.

Orman co-founded a private equity firm. His disclosure form also lists interests in banking and real estate.

Roberts reported in August that he and his wife own assets worth between $1.6 million and $4 million.