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SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF 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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1. Name and Address of Reporting Person* JCP Investment Management, LLC (Last) (First) (Middle) 1177 WEST LOOP SOUTH SUITE 1320 (Street) HOUSTON TX 77027 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 10/21/2025	3. Issuer Name and Ticker or Trading Symbol DENNY'S Corp [ DENN ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner Officer (give title below) X Other (specify below) See Footnotes 1 and 2	5. If Amendment, Date of Original Filed (Month/Day/Year) 10/21/2025
			6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock, $0.01 par value(1)(2)	455,717	I	By: JCP Investment Partnership, LP

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person* JCP Investment Management, LLC (Last) (First) (Middle) 1177 WEST LOOP SOUTH SUITE 1320 (Street) HOUSTON TX 77027 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) See Footnotes 1 and 2

1. Name and Address of Reporting Person* JCP Investment Partnership, LP (Last) (First) (Middle) 1177 WEST LOOP SOUTH SUITE 1320 (Street) HOUSTON TX 77027 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) See Footnotes 1 and 2

1. Name and Address of Reporting Person* JCP Investment Partners, LP (Last) (First) (Middle) 1177 WEST LOOP SOUTH SUITE 1320 (Street) HOUSTON TX 77027 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) See Footnotes 1 and 2

1. Name and Address of Reporting Person* JCP Investment Holdings, LLC (Last) (First) (Middle) 1177 WEST LOOP SOUTH SUITE 1320 (Street) HOUSTON TX 77027 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) See Footnotes 1 and 2

1. Name and Address of Reporting Person* Pappas James C (Last) (First) (Middle) 1177 WEST LOOP SOUTH SUITE 1320 (Street) HOUSTON TX 77027 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) See Footnotes 1 and 2

Explanation of Responses:

1. This line item does not reflect a new or revised holding. Rather, it is being reported again in order to gain access to the electronic filing system. The purpose of this amendment to the Form 3 filed by the Reporting Persons on October 21, 2025 is to replace Footnote 2 set forth therein as provided in Footnote 2 herein. For the avoidance of doubt, the Reporting Persons have not engaged in any transactions in the securities of the Issuer since the initial Form 3 was triggered on October 17, 2025.

2. As of October 21, 2025, the Schedule 13(d) group no longer collectively beneficially owned more than 10% of the Issuer's outstanding shares of Common Stock. Later in the day on October 21, 2025, another member of the Schedule 13(d) group engaged in additional transactions in securities of the Issuer that resulted in the Schedule 13(d) group once again collectively beneficially owning more than 10% of the Issuer's outstanding shares of Common Stock. Subsequently, on November 4, 2025, the Schedule 13(d) group was terminated, and the Reporting Persons are no longer members of a Schedule 13(d) group that collectively beneficially owns more than 10% of the Issuer's outstanding shares of Common Stock.

	JCP Investment Management, LLC, By: /s/ James C. Pappas, Managing Member	11/04/2025
	JCP Investment Partnership, LP, By: JCP Investment Management, LLC, Investment Manager, By: /s/ James C. Pappas, Managing Member	11/04/2025
	JCP Investment Partners, LP, By: JCP Investment Holdings, LLC, General Partner, By: /s/ James C. Pappas, Sole Member	11/04/2025
	JCP Investment Holdings, LLC, By: /s/ James C. Pappas, Sole Member	11/04/2025
	/s/ James C. Pappas	11/04/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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