144 0001404430 XXXXXXXX LIVE 0001883685 DraftKings Inc. 001-41379 222 BERKELEY STREET BOSTON MA 02116 (617) 986-6744 Dodge R Stanton Officer Class A Common UBS Financial Services Inc.

11 Madison Avenue 4th Floor New York NY 100010

52777 1680947.45 497772508 01/20/2026 NASDAQ Class A Common 01/20/2026 Exercise of Stock Options Issuer N 40066 01/20/2026 Cash Class A Common 01/01/2026 Vested RSU Issuer N 529 01/01/2026 NA Class A Common 12/01/2025 Vested RSU Issuer N 12182 12/01/2025 NA N Stanton Dodge

c/o 222 Berkeley Street Boston MA 02116

Class A Common 12/01/2025 52777 1785915.63 Stanton Dodge

/o 222 Berkeley Street Boston MA 02116

Class A Common 11/06/2025 52777 1530533.00 Seller represents that the sale reported in Table I of this Form 144 was made pursuant to a Rule 10b5-1 trading plan for selling shares of Issuer's Class A Common Stock. As listed in Table II of this Form 144, Seller further represents that the sales of (i) 52,777 shares on December 1, 2025 and (ii) 52,777 shares on November 6, 2025 were made pursuant to a Rule 10b5-1 trading plan for selling shares of Issuer's Class A Common Stock. 01/20/2026 12/13/2024 /s/ UBS Financial Services Inc, as attorney-in-fact for Stanton Dodge