X0306 4 2022-12-06 0001289419 Morningstar, Inc. MORN 0001324069 Mansueto Joseph D 22 W. WASHINGTON CHICAGO IL 60602 1 1 1 0 Executive Chairman Common Stock 2022-12-06 4 S 0 120 239.9400 D 11811958 D Common Stock 4798975 I By Trust Common Stock 150000 I By Trust The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 31, 2022. On December 6, 2022, the reporting person contributed 600,000 shares of Morningstar common stock to a grantor retained annuity trust for the benefit of the reporting person and his children. The shares are held in grantor retained annuity trusts for the benefit of the reporting person and his children. The reporting person serves as trustee of the grantor retained annuity trusts. The shares are held in trusts for the benefit of the reporting person's children. The reporting person's spouse is trustee of the trusts. /s/ Patrick Maloney, by power of attorney 2022-12-07