144 0001824092 XXXXXXXX LIVE 0001883685 DraftKings Inc. 001-41379 222 BERKELEY STREET BOSTON MA 02116 (617) 986-6744 Bradbury Erik Officer Class A Common UBS Financial Services Inc.

11 Madison Avenue 4th Floor New York NY 10010

614 15704.02 496128817 06/02/2026 NASDAQ Class A Common 06/01/2026 RSU Vesting Issuer N 614 06/01/2026 N/A N Erik Bradbury

222 BERKELEY STREET Boston MA 02116

Class A Common 05/20/2026 862 21837.82 Erik Bradbury

222 BERKELEY STREET Boston MA 02116

Class A Common 03/03/2026 2883 70787.74 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) 862 shares on May 20, 2026 and (ii) 2,883 shares on March 3, 2026 were made pursuant to a Rule 10b5-1 trading plan for selling shares of Issuer's Class A Common Stock 06/02/2026 11/10/2025 /s/ UBS Financial Services Inc, as attorney-in-fact for Erik Bradbury