X0508 4 2026-03-03 0 0001437107 Warner Bros. Discovery, Inc. WBD 0001421985 Campbell Bruce 230 PARK AVENUE SOUTH NEW YORK NY 10003 0 1 0 0 Chief Rev & Strategy Officer 0 Series A Common Stock 2026-03-03 4 F 0 31765 28.20 D 1215250 D Series A Common Stock 2026-03-04 4 M 0 183346 25.70 A 1398596 D Series A Common Stock 2026-03-04 4 S 0 183346 28 D 1215250 D Series A Common Stock 2026-03-04 4 M 0 285679 15.02 A 1500929 D Series A Common Stock 2026-03-04 4 S 0 285679 28 D 1215250 D Series A Common Stock 2026-03-04 4 M 0 139323 8.67 A 1354573 D Series A Common Stock 2026-03-04 4 S 0 139323 28 D 1215250 D Series A Common Stock 2026-03-04 4 M 0 131313 11.02 A 1346563 D Series A Common Stock 2026-03-04 4 S 0 131313 28 D 1215250 D Series A Common Stock 2026-03-04 4 M 0 15448 11.85 A 1230698 D Series A Common Stock 2026-03-04 4 S 0 15448 28 D 1215250 D Series A Common Stock 2026-03-04 4 S 0 825222 28 D 690028 D Series A Common Stock 2026-03-04 4 S 0 53795 28 D 0 I By spouse as trustee for children Series A Common Stock 2026-03-04 4 S 0 1323 28 D 0 I By LLC through grantor retained annuity trust Employee Stock Option 25.70 2026-03-04 4 M 0 183346 0 D 2022-04-08 2027-02-28 Series A Common Stock 183346 0 D Employee Stock Option 15.02 2026-03-04 4 M 0 285679 0 D 2024-03-01 2030-03-01 Series A Common Stock 285679 0 D Employee Stock Option 8.67 2026-03-04 4 M 0 139323 0 D 2025-03-01 2031-03-01 Series A Common Stock 139323 143545 D Employee Stock Option 11.02 2026-03-04 4 M 0 131313 0 D 2026-03-03 2032-03-03 Series A Common Stock 131313 266606 D Employee Stock Option 11.85 2026-03-04 4 M 0 15448 0 D 2026-03-03 2032-08-15 Series A Common Stock 15448 31366 D The price reported represents the weighted average price of shares of Series A common stock sold in multiple transactions at prices ranging from $27.93 to $28.09 per share. The reporting person will provide to the Issuer, any security holder of the Issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. The price reported represents the weighted average price of shares of Series A common stock sold in multiple transactions at prices ranging from $27.93 to $28.06 per share. The reporting person will provide to the Issuer, any security holder of the Issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. The price reported represents the weighted average price of shares of Series A common stock sold in multiple transactions at prices ranging from $27.94 to $28.06 per share. The reporting person will provide to the Issuer, any security holder of the Issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. The price reported represents the weighted average price of shares of Series A common stock sold in multiple transactions at prices ranging from $27.93 to $28.11 per share. The reporting person will provide to the Issuer, any security holder of the Issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. In March 2025, the reporting person transferred 300,000 shares from his indirect holdings to his direct holdings. As a result, subsequently filed Form 4s underreported his direct holdings in Box 5 by 300,000 shares. In March 2025, the reporting person transferred 144,095 shares from his indirect holdings to his direct holdings. As a result, subsequently filed Form 4s overreported his indirect holdings in Box 5. In March 2025, the reporting person transferred 155,905 shares from his indirect holdings to his direct holdings. As a result, subsequently filed Form 4s overreported his indirect holdings in Box 5. This option vests in three installments (33%, 33%, 34%) beginning on March 1, 2024. This option vests in three installments (33%, 33%, 34%) beginning on March 1, 2025. This option vests in three installments (33%, 33%, 34%) beginning on March 3, 2026. Tara L. Smith, Attorney-in-Fact 2026-03-05