ECHO

Item 4 is hereby amended and supplemented as follows: During the third quarter of each year, Mr. Ergen receives an annuity amount from the 2025 July GRAT, assuming that the 2025 July GRAT has not expired. The number of shares of Class B Common Stock to be distributed as an annuity payment is based in part on the price of the Class A Common Stock on the distribution date and therefore cannot be calculated until the date of distribution. In addition to shares of Class B Common Stock, the annuity payments (and their associated timing) may include, and be based upon, amounts generated from the holdings of the 2025 July GRAT including, among other things, stock recapitalizations or dividends paid or payable with respect to the shares of Class B Common Stock held by the 2025 July GRAT. On July 29, 2026, the 2025 July GRAT distributed 1,502,440 shares of Class B Common Stock held by the 2025 July GRAT to Mr. Ergen as an annuity payment. Therefore, the 2025 July GRAT has beneficial ownership of 6,497,560 shares of Class B Common Stock. The 2025 July GRAT is scheduled to expire in accordance with its terms on July 29, 2027. .

Item 4 is hereby amended and supplemented as follows: During the third quarter of each year, Mr. Ergen receives an annuity amount from the 2025 July GRAT, assuming that the 2025 July GRAT has not expired. The number of shares of Class B Common Stock to be distributed as an annuity payment is based in part on the price of the Class A Common Stock on the distribution date and therefore cannot be calculated until the date of distribution. In addition to shares of Class B Common Stock, the annuity payments (and their associated timing) may include, and be based upon, amounts generated from the holdings of the 2025 July GRAT including, among other things, stock recapitalizations or dividends paid or payable with respect to the shares of Class B Common Stock held by the 2025 July GRAT. On July 29, 2026, the 2025 July GRAT distributed 1,502,440 shares of Class B Common Stock held by the 2025 July GRAT to Mr. Ergen as an annuity payment. Therefore, the 2025 July GRAT has beneficial ownership of 6,497,560 shares of Class B Common Stock. The 2025 July GRAT is scheduled to expire in accordance with its terms on July 29, 2027. .

Item 4 is hereby amended and supplemented as follows: During the third quarter of each year, Mr. Ergen receives an annuity amount from the 2025 July GRAT, assuming that the 2025 July GRAT has not expired. The number of shares of Class B Common Stock to be distributed as an annuity payment is based in part on the price of the Class A Common Stock on the distribution date and therefore cannot be calculated until the date of distribution. In addition to shares of Class B Common Stock, the annuity payments (and their associated timing) may include, and be based upon, amounts generated from the holdings of the 2025 July GRAT including, among other things, stock recapitalizations or dividends paid or payable with respect to the shares of Class B Common Stock held by the 2025 July GRAT. On July 29, 2026, the 2025 July GRAT distributed 1,502,440 shares of Class B Common Stock held by the 2025 July GRAT to Mr. Ergen as an annuity payment. Therefore, the 2025 July GRAT has beneficial ownership of 6,497,560 shares of Class B Common Stock. The 2025 July GRAT is scheduled to expire in accordance with its terms on July 29, 2027. .

Item 4 is hereby amended and supplemented as follows: During the third quarter of each year, Mr. Ergen receives an annuity amount from the 2025 July GRAT, assuming that the 2025 July GRAT has not expired. The number of shares of Class B Common Stock to be distributed as an annuity payment is based in part on the price of the Class A Common Stock on the distribution date and therefore cannot be calculated until the date of distribution. In addition to shares of Class B Common Stock, the annuity payments (and their associated timing) may include, and be based upon, amounts generated from the holdings of the 2025 July GRAT including, among other things, stock recapitalizations or dividends paid or payable with respect to the shares of Class B Common Stock held by the 2025 July GRAT. On July 29, 2026, the 2025 July GRAT distributed 1,502,440 shares of Class B Common Stock held by the 2025 July GRAT to Mr. Ergen as an annuity payment. Therefore, the 2025 July GRAT has beneficial ownership of 6,497,560 shares of Class B Common Stock. The 2025 July GRAT is scheduled to expire in accordance with its terms on July 29, 2027. .

Item 4 is hereby amended and supplemented as follows: During the third quarter of each year, Mr. Ergen receives an annuity amount from the 2025 July GRAT, assuming that the 2025 July GRAT has not expired. The number of shares of Class B Common Stock to be distributed as an annuity payment is based in part on the price of the Class A Common Stock on the distribution date and therefore cannot be calculated until the date of distribution. In addition to shares of Class B Common Stock, the annuity payments (and their associated timing) may include, and be based upon, amounts generated from the holdings of the 2025 July GRAT including, among other things, stock recapitalizations or dividends paid or payable with respect to the shares of Class B Common Stock held by the 2025 July GRAT. On July 29, 2026, the 2025 July GRAT distributed 1,502,440 shares of Class B Common Stock held by the 2025 July GRAT to Mr. Ergen as an annuity payment. Therefore, the 2025 July GRAT has beneficial ownership of 6,497,560 shares of Class B Common Stock. The 2025 July GRAT is scheduled to expire in accordance with its terms on July 29, 2027. .

Item 4 is hereby amended and supplemented as follows: During the third quarter of each year, Mr. Ergen receives an annuity amount from the 2025 July GRAT, assuming that the 2025 July GRAT has not expired. The number of shares of Class B Common Stock to be distributed as an annuity payment is based in part on the price of the Class A Common Stock on the distribution date and therefore cannot be calculated until the date of distribution. In addition to shares of Class B Common Stock, the annuity payments (and their associated timing) may include, and be based upon, amounts generated from the holdings of the 2025 July GRAT including, among other things, stock recapitalizations or dividends paid or payable with respect to the shares of Class B Common Stock held by the 2025 July GRAT. On July 29, 2026, the 2025 July GRAT distributed 1,502,440 shares of Class B Common Stock held by the 2025 July GRAT to Mr. Ergen as an annuity payment. Therefore, the 2025 July GRAT has beneficial ownership of 6,497,560 shares of Class B Common Stock. The 2025 July GRAT is scheduled to expire in accordance with its terms on July 29, 2027. .