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 10010

52777 1807612.25 489956221 05/05/2025 NASDAQ Class A Common 02/20/2025 Vesting of Restricted Stock Units Issuer N 52777 02/20/2025 N/A N Stanton Dodge

c/o 222 BERKELEY STREET Boston MA 02116

Class A Common 02/21/2025 164473 7695691.67 Stanton Dodge

c/o 222 BERKELEY STREET Boston MA 02116

Class A Common 03/14/2025 52777 1985344.08 Stanton Dodge

c/o 222 BERKELEY STREET Boston MA 02116

Class A Common 03/17/2025 52777 2058303.00 Stanton Dodge

c/o 222 BERKELEY STREET Boston MA 02116

Class A Common 04/21/2025 52777 1703805.17 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 April 21, 2025, (ii) 52,777 shares on March 17, 2025 and (iii) 52,777 shares on March 14, 2025 were made pursuant to a Rule 10b5-1 trading plan for selling shares of Issuer's Class A Common Stock. Additionally, Seller further represents that the sale of 164,473 shares on February 21, 2025 was made pursuant to a Rule 10b5-1 trading plan in order to cover tax withholding obligations in connection with the vesting of certain performance based restricted stock units 05/05/2025 12/13/2024 /s/ UBS Financial Services Inc, as attorney-in-fact for Stanton Dodge