Company: RRGB
Filing Date: 2025-08-29
Form Type: 8-K/A
Source: 0000950142-25-002328
Chunk: 0

Company: RED ROBIN GOURMET BURGERS INC
Filing Date: 2025-08-29
Form: 8-K/A
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K/A

Amendment No. 1

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 16, 2025

RED ROBIN GOURMET BURGERS, INC.

(Exact name of registrant as specified in its
charter)</div>

| Delaware                        | 001-34851               | 84-1573084         |
| (State or other jurisdiction of 
 incorporation)                  | -Commission File Number | -IRS Employer      
 Identification No. |

| 10000                                    
 E. Geddes Avenue, Suite 500              
 Englewood, Colorado                      |     80112 |
| (Address of principal executive offices) | -Zip Code |

<div align='center'>( 303) 846-6000

(Registrant’s telephone number, including area
code)

Not Applicable

(Former name or former address, if changed since last
report)</div>

Check the appropriate box below if the Form 8-K filing is intended
to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

| ☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)                  |
| ☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)                 |
| ☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
| ☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) |

Securities registered pursuant to Section 12(b) of the Exchange
Act:

| Title of each class            |     | Trading   
 symbol(s) |     | Name of each exchange         
 on which                      
 registered                    |
| Common Stock, $0.001 par value |     | RRGB      |     | Nasdaq (Global Select Market) |

Indicate by check mark whether the registrant is an emerging growth
company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter