Transaction Details

Footnotes

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 15, 2024. | The transaction was executed in multiple trades at prices ranging from $283.7200 to $284.7100. 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. | In the first quarter of 2025, the reporting person contributed 500,000 shares of Morningstar common stock to a grantor retained annuity trust for the benefit of the reporting person and his children which are now reported as indirect holdings. | The transaction was executed in multiple trades at prices ranging from $284.7350 to $285.3400. 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 $287.9500 to $288.8350. 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 $289.4000 to $290.2300. 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 $290.8050 to $291.7700. 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 $291.8100 to $292.7600. 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 $292.8300 to $293.7900. 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 $293.8450 to $294.3550. 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 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.