Red Robin Insider Mussetter Files Form 4 on Ownership Changes

TL;DR

**Red Robin insider filed a Form 4, signaling a change in their stock ownership.**

AI Summary

This Form 4 filing, dated March 24, 2026, indicates that Sarah A. Mussetter, an insider at Red Robin Gourmet Burgers Inc. (RRGB), has filed a statement of changes in beneficial ownership of securities. While the filing itself doesn't detail specific transactions, it signals that Mussetter, whose CIK is 0001481286, has had a change in her holdings that she is legally required to report. This matters to investors because insider transactions can sometimes provide clues about how company executives view the stock's future prospects.

Why It Matters

This filing signals a change in an insider's stake, which can be an early indicator of their confidence in the company's future performance.

Risk Assessment

Risk Level: low — This filing is purely informational and does not inherently pose a direct risk, but rather provides data for investor analysis.

Analyst Insight

An investor should monitor subsequent Form 4 filings from Sarah A. Mussetter to identify the specific transactions (buys or sells) and their sizes, as this could indicate her sentiment towards Red Robin Gourmet Burgers Inc.'s stock.

Key Players & Entities

• Mussetter Sarah A. (person) — Reporting Person
• RED ROBIN GOURMET BURGERS INC (company) — Issuer
• 0001481286 (person) — CIK of Mussetter Sarah A.
• 0001171759 (company) — CIK of RED ROBIN GOURMET BURGERS INC

FAQ

Key Financial Figures

• $3.12 — es were sold in a single transaction at $3.12 per share. 3. In connection with the v

Filing Documents

• form4-03242026_110339.html (4)
• form4-03242026_110339.xml (4) — 9KB
• 0001481286-26-000018.txt ( ) — 10KB

From the Filing

SEC FORM 4 SEC Form 4 FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940 OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5    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 for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10. 1. Name and Address of Reporting Person * Mussetter Sarah A. (Last) (First) (Middle) 10000 E. GEDDES AVE. STE. 500 (Street) ENGLEWOOD COLORADO 80112 (City) (State) (Zip) UNITED STATES (Country) 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 LEGAL OFFICER 2a. Foreign Trading Symbol 3. Date of Earliest Transaction (Month/Day/Year) 03/23/2026 6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person 4. If Amendment, Date of Original Filed (Month/Day/Year) 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) 2,913 D $ 3.12 (2) 106,888 D Common Stock 03/24/2026 F 8,391 (3) D $ 3.08 98,497 (4) D 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 Securities Underlying Derivative Security (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: 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 69,350 (5) (5) Common Stock 69,350 $ 0 69,350 D Explanation of Responses: 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 6,649 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 19,181 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 8,391 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 47,174 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. /s/ Carrie Etherton, Attorney-in-Fact 03/24/2026 ** Signature of Reporting Person Date Reminder: Report

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