FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Griffith Jesse 2. Issuer Name and Ticker or Trading Symbol RED ROBIN GOURMET BURGERS INC [RRGB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Operations Officer (Last) (First) (Middle) 10000 E.GEDDES AVENUE, SUITE 500 3. Date of Earliest Transaction (Month/Day/Year) 03/23/2026 (Street) ENGLEWOOD, CO 80112 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 03/23/2026 S(1) 839 D $3.12(2) 42,110 D Common Stock 03/24/2026 F 3,284(3) D $3.08 38,826(4) D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Phantom Restricted Stock Unit

$ 0

03/23/2026

A

38,636

(5)

(5)

Common Stock

38,636

$ 0

38,636

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Griffith Jesse 10000 E.GEDDES AVENUE SUITE 500 ENGLEWOOD, CO 80112			Chief Operations Officer

Signatures

/s/ Carrie Etherton, Attorney-in-Fact		03/24/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Represents the sale of shares by the issuer on behalf of the reporting person pursuant to automatic "sell-to-cover" transactions to cover tax withholding obligations and fees arising due to the vesting of 2,191 time-based restricted stock units that were granted to the reporting person on March 20, 2023 under the issuer's 2017 Performance Incentive Plan, as amended. These sell to cover transactions do not represent discretionary trades by the reporting person.
(2)	The price reported is the actual sale price of the shares. The shares were sold in a single transaction at $3.12 per share.
(3)	In connection with the vesting of 8,621 time-based restricted stock units that were granted on March 24, 2025, under the issuer's 2024 Performance Incentive Plan, as amended, the issuer withheld 3,284 of such shares to satisfy tax withholding obligations. The transaction was approved by the issuer's Compensation Committee in accordance with Rule 16b-3(d)(1) of the Exchange Act (the "Act"), and as such, is exempt from Section 16(b) of the Act pursuant to Rule 16b-3(e) promulgated thereunder.
(4)	Includes 23,348 shares subject to vesting and forfeiture restrictions.
(5)	Represents a grant of Phantom Restricted Stock Units ("Phantom RSUs") on March 23, 2026, under the issuer's 2024 Performance Incentive Plan. Each Phantom RSU represents the contingent right to receive, upon vesting, one share of the issuer's common stock or the cash equivalent of one share of the issuer's common stock on the date of vesting, or a combination thereof, at the issuer's discretion. One third of the Phantom RSUs are scheduled to vest on each of the first, second, and third anniversaries of the date of grant.

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