FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
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 *
RR INVESTORS LLC
   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 __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
c/o Quad-C, Inc., 230 East High Street		 3. Date of Earliest Transaction (Month/Day/Year)
08/20/2003
(Street)

Charlottesville, VA 22902		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ 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, $0.001 par value 08/20/2003   S   465,385 D $21.15 3,679,177 D(1)  

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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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
RR INVESTORS LLC
c/o Quad-C, Inc.
230 East High Street
Charlottesville, VA 22902		     X    
QUAD C PARTNERS V LP
230 East High Street
Charlottesville, VA 22902		     X    
QUAD C ADVISOR SV LLC
230 EAST HIGH STREET
CHARLOTTESVILLE, VA 22902		     X    

Signatures

 John W. Grant, Attorney-in-Fact for RR Investors, LLC, Quad-C Partners V, L.P. and Quad-C Advisors V, L.L.C.   08/22/2003
**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) These shares are owned directly by RR Investors, LLC, a ten percent owner of the issuer, and indirectly by Quad-C Partners V, L.P. and Quad-C Advisors V, LLC. As the sole member of RR Investors, Quad-C Partners V, L.P. has the sole power to vote and dispose of the shares held by RR Investors, LLC. Quad-C Advisors V, L.L.C. is the general partner of Quad-C Partners V, L.P., the sole member of RR Investors, LLC. Quad-C Advisors V, L.L.C. disclaims beneficial ownership of these shares except to the extent of its pecuniary interest.

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