144 0002097265 XXXXXXXX LIVE 0001171759 RED ROBIN GOURMET BURGERS INC 001-34851 10000 E. GEDDES AVE. STE. 500 ENGLEWOOD CO 80112 3038466000 Jesse Griffith Officer Common Stock E*Trade from Morgan Stanley

Morgan Stanley 200 Hudson Street Suite 501 Jersey City NJ 07311

998 3174.94 18074472 04/06/2026 NASDAQ Common 04/03/2026 Restricted Stock Units Issuer N 2610 04/03/2026 Compensation N Jesse Griffith

10000 East Geddes Avenue, Suite 500 Englewood CO 80112

Common Stock RRGB 03/16/2026 1402 4501.54 Jesse Griffith

10000 East Geddes Avenue, Suite 500 Englewood CO 80112

Common Stock RRGB 03/23/2026 839 2714.46 Represents an estimate of shares expected to be sold pursuant to automatic "sell to cover" transactions to cover tax withholding obligations and fees arising due to the vesting of restricted stock units on 04/03/26. Such sell to cover transactions do not represent discretionary trades by the Reporting Person. The actual number of shares sold will depend on the sale price of the Company's common stock in such transactions. 04/02/2026 /s/ Carrie Etherton, Attorney-in-Fact