X0306 4 2021-11-22 0001289419 Morningstar, Inc. MORN 0001712782 DUBINSKY JASON C/O MORNINGSTAR, INC. 22 W WASHINGTON ST CHICAGO IL 60602 0 1 0 0 Chief Financial Officer Common Stock 2021-11-22 4 S 0 765 316.5761 D 19790 D Common Stock 2021-11-22 4 S 0 350 317.9326 D 19440 D Common Stock 2021-11-22 4 S 0 755 319.5871 D 18685 D Common Stock 2021-11-22 4 S 0 1129 320.4609 D 17556 D Common Stock 2021-11-22 4 S 0 8 321.3025 D 17548 D The transaction was executed in multiple trades at prices ranging from $316.17 to $317.05. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, Morningstar or a shareholder of Morningstar full information regarding the number of shares and prices at which the transaction was effected. The transaction was executed in multiple trades at prices ranging from $317.49 to $318.39. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, Morningstar or a shareholder of Morningstar full information regarding the number of shares and prices at which the transaction was effected. The transaction was executed in multiple trades at prices ranging from $319.06 to $320.00. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, Morningstar or a shareholder of Morningstar full information regarding the number of shares and prices at which the transaction was effected. The transaction was executed in multiple trades at prices ranging from $320.06 to $321.00. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, Morningstar or a shareholder of Morningstar full information regarding the number of shares and prices at which the transaction was effected. The transaction was executed in multiple trades at prices ranging from $321.19 to $321.41. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, Morningstar or a shareholder of Morningstar full information regarding the number of shares and prices at which the transaction was effected. /s/Patrick Maloney, by power of attorney 2021-11-23