144 0001825006 XXXXXXXX LIVE 0001883685 DraftKings Inc. 001-41379 222 BERKELEY STREET BOSTON MA 02116 (617) 986-6744 Moore Jocelyn Director Class A Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

10759 258753.95 496454048 08/19/2026 NASDAQ Class A 05/02/2023 Restricted Stock Vesting Issuer N 4077 05/02/2023 Compensation Class A 08/01/2023 Restricted Stock Vesting Issuer N 515 08/01/2023 Compensation Class A 10/31/2023 Restricted Stock Vesting Issuer N 610 10/31/2023 Compensation Class A 07/30/2024 Restricted Stock Vesting Issuer N 470 07/30/2024 Compensation Class A 05/06/2025 Restricted Stock Vesting Issuer N 502 05/06/2025 Compensation Class A 05/19/2025 Restricted Stock Vesting Issuer N 3360 05/19/2025 Compensation Class A 11/06/2025 Restricted Stock Vesting Issuer N 603 11/06/2025 Compensation Class A 02/10/2026 Restricted Stock Vesting Issuer N 622 02/10/2026 Compensation Y Seller represents that the sale reported in the Securities to Be Sold section of this Form 144 was made pursuant to a Rule 10b5-1 trading plan for selling shares of Issuers Class A Common Stock. 08/19/2026 05/20/2026 /s/ Jessica Spraker, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jocelyn Moore.