X0508 4 2025-12-22 1 0001415404 EchoStar CORP SATS 0002006151 Ergen Two-Year December 2023 SATS GRAT 9601 S. MERIDIAN BLVD. ENGLEWOOD CO 80112 false false true false 0 Class B Common Stock 2025-12-22 4 G 0 19038378 0 D Class A Common Stock 19038378 0 D The holder of the Class B shares may elect to convert any or all of its Class B shares into an equal number of Class A shares at any time for no additional consideration. Pursuant to the terms of the Ergen Two-Year December 2023 SATS GRAT (the "2023 December GRAT"), on December 22, 2025, the 2023 December GRAT: (i) distributed 2,060,220 Class B shares held by the 2023 December GRAT to Mr. Ergen as an annuity payment; and (ii) contributed the remaining 16,978,158 Class B shares to Telluray Holdings, LLC ("Telluray Holdings") in exchange for membership units in Telluray Holdings, and the 2023 December GRAT expired in accordance with its terms. /s/ Mrs. Cantey M. Ergen, Trustee of the Ergen Two-Year December 2023 SATS GRAT, by Dean A. Manson, Attorney-in-Fact 2025-12-29