RRGB Form 144: Insider sells 4,037 shares

Sarah Mussetter reported a Rule 144 sale of Common Stock for RRGB.

Accepted by SEC EDGAR 03/20/2026 - 05:41 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Sarah Mussetter reported a Rule 144 sale of Common Stock for RRGB. The filing records a sale of 4,037 shares on 03/16/2026 for $12,961.99.

The form also lists securities to be sold on 03/20/2026 described as Common and shows Restricted Stock Units dated 03/20/2026 with a quantity of 6,649 labeled "Compensation".

Insights

Equity Securities Compliance Expert

Rule 144 notice documents a small insider disposition and lists recently issued RSUs.

The filing shows a reported disposition of 4,037 shares of Common Stock for $12,961.99 on 03/16/2026 by Sarah Mussetter. This is recorded under the Rule 144 submission mechanism for restricted/controlled securities.

The excerpt also lists an entry for Common stock to be sold on 03/20/2026 and 6,649 Restricted Stock Units dated 03/20/2026 described as "Compensation." The filing text does not tie proceeds usage or broader company actions to these items; subsequent filings would provide additional context.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What sale does the RRGB Form 144 report?

The form reports a sale of 4,037 shares of Common Stock on 03/16/2026, with gross proceeds of $12,961.99. The entry names Sarah Mussetter as the filer associated with that transaction.

Does the filing show any planned sales for RRGB after March 16, 2026?

Yes, the filing lists Common stock to be sold on 03/20/2026. The excerpt includes a separate line describing intended sales dated 03/20/2026, but it does not state transaction amounts tied to that date in the provided text.

Are there Restricted Stock Units mentioned in the RRGB filing?

The form shows 6,649 Restricted Stock Units dated 03/20/2026 and labels them under "Compensation." This entry appears in the securities section of the excerpt provided.

Who is the filer listed on this RRGB Form 144?

The filing identifies Sarah Mussetter with an address at 10000 E Geddes Avenue, suite 500, Englewood, CO 80016. That name is linked to the reported sale of 4,037 shares on 03/16/2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001481286
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	RED ROBIN GOURMET BURGERS INC
SEC File Number	001-34851
Address of Issuer	10000 E. GEDDES AVE. STE. 500 ENGLEWOOD COLORADO 80112
Phone	3038466000
Name of Person for Whose Account the Securities are To Be Sold	Sarah A. Mussetter
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock	E*Trade from Morgan Stanley 200 Hudson Street Suite 501 Jersey City NJ 07311	2913	9321.40	18074472	03/23/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	03/20/2026	Restricted Stock Units	Issuer			6649	03/20/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Sarah Mussetter 10000 E Geddes Avenue suite 500 Englewood CO 80016	Common Stock RRGB	03/16/2026	4037	12961.99

144: Remarks and Signature

Remarks	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 03/20/26. 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.
Date of Notice	03/20/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Carrie Etherton, Attorney-in-Fact
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)