# EDGAR Filing Document

**Accession Number:** 0000852772
**File Stem:** 0000921895-25-002888
**Filing Date:** 2025-11
**Character Count:** 29125
**Document Hash:** 4b76077ab054bd3a37e1569304607355
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000921895-25-002888.hdr.sgml**: 20251104

**ACCESSION NUMBER**: 0000921895-25-002888

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 4

**FILED AS OF DATE**: 20251104

**DATE AS OF CHANGE**: 20251104

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** DENNY'S Corp
- **CENTRAL INDEX KEY:** 0000852772
- **STANDARD INDUSTRIAL CLASSIFICATION:** RETAIL-EATING PLACES [5812]
- **ORGANIZATION NAME:** 07 Trade & Services
- **EIN:** 133487402
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-40568
- **FILM NUMBER:** 251450667

**BUSINESS ADDRESS:**
- **STREET 1:** 203 EAST MAIN STREET
- **CITY:** SPARTANBURG
- **STATE:** SC
- **ZIP:** 29319
- **BUSINESS PHONE:** 8645978000

**MAIL ADDRESS:**
- **STREET 1:** 203 EAST MAIN STREET
- **CITY:** SPARTANBURG
- **STATE:** SC
- **ZIP:** 29319

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** DENNYS CORP
- **DATE OF NAME CHANGE:** 20020801

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ADVANTICA RESTAURANT GROUP INC
- **DATE OF NAME CHANGE:** 19980107

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FLAGSTAR COMPANIES INC
- **DATE OF NAME CHANGE:** 19930722
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Jumana Capital Investments LLC
- **CENTRAL INDEX KEY:** 0002036142

**ORGANIZATION NAME:**
- **EIN:** 882248730
- **STATE OF INCORPORATION:** TX
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**BUSINESS ADDRESS:**
- **STREET 1:** 1717 SAINT JAMES PLACE, SUITE 335
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77056
- **BUSINESS PHONE:** 832-689-1155

**MAIL ADDRESS:**
- **STREET 1:** 1717 SAINT JAMES PLACE, SUITE 335
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77056

## Ex-1

Exhibit 1

**<u>Transactions in the Securities of the Issuer Since the Filing of the Schedule 13D</u>**

---

| | | | | |
|:---|:---|:---|:---|:---|
| &nbsp;&nbsp;Nature of the <u>Transaction</u> | &nbsp;&nbsp; Securities<br> <u>Purchased/(Sold)</u> | &nbsp;&nbsp; Price Per<br> <u>Security($)<sup>\*</sup></u> | &nbsp;&nbsp;<u>Price Range ($)</u> | &nbsp;&nbsp; Date of<br> <u>Purchase/Sale</u> |

---

**<u>JUMANA CAPITAL INVESTMENTS LLC</u>**

---

| | | | | |
|:---|:---|:---|:---|:---|
| &nbsp;&nbsp;Acquisition of Common Stock Upon Exercise of September 2025 Call Option ($5.00 Strike Price) | &nbsp;&nbsp;75000 | &nbsp;&nbsp;5.0000 | &nbsp;&nbsp;- | &nbsp;&nbsp;09/19/2025 |
| &nbsp;&nbsp;Purchase of Common Stock | &nbsp;&nbsp;32777 | &nbsp;&nbsp;4.9974 | &nbsp;&nbsp;4.9800 - 4.9999 | &nbsp;&nbsp;10/15/2025 |
| &nbsp;&nbsp;Purchase of Common Stock | &nbsp;&nbsp;268194 | &nbsp;&nbsp;4.9319 | &nbsp;&nbsp;4.8757 - 5.0500 | &nbsp;&nbsp;10/16/2025 |
| &nbsp;&nbsp;Purchase of Common Stock | &nbsp;&nbsp;42342 | &nbsp;&nbsp;4.9818 | &nbsp;&nbsp;4.9137 - 4.9996 | &nbsp;&nbsp;10/17/2025 |
| &nbsp;&nbsp;Purchase of Common Stock | &nbsp;&nbsp;162210 | &nbsp;&nbsp;5.0475 | &nbsp;&nbsp;- | &nbsp;&nbsp;10/20/2025 |
| &nbsp;&nbsp;Sale of November 2025 Call Option ($5.00 Strike Price) | &nbsp;&nbsp;(6600) | &nbsp;&nbsp;0.4200 | &nbsp;&nbsp;- | &nbsp;&nbsp;10/21/2025 |
| &nbsp;&nbsp;Purchase of Common Stock | &nbsp;&nbsp;479382 | &nbsp;&nbsp;5.1560 | &nbsp;&nbsp;5.1416 - 5.1975 | &nbsp;&nbsp;10/21/2025 |
| &nbsp;&nbsp;Purchase of Common Stock | &nbsp;&nbsp;250000 | &nbsp;&nbsp;4.0813 | &nbsp;&nbsp;3.9731 - 4.1154 | &nbsp;&nbsp;11/03/2025 |

---

______________________________

<sup>\*</sup> The price reported in column <u>Price Per Security ($)</u> is a weighted average price if a price range is indicated in column <u>Price Range ($)</u>. These securities were purchased or sold in multiple transactions at prices between the corresponding price ranges in the applicable row. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities purchased or sold at each separate price.

## Exhibit 99.1

Exhibit 99.1

**TERMINATION AGREEMENT**

November 4, 2025

Each of the undersigned is a party to that certain Group Agreement, dated as of September 8, 2025 (the "<u>Group Agreement</u>"), with respect to Denny's Corporation. In accordance with Section 9 of the Group Agreement, each of the undersigned hereby agrees that the Group Agreement is hereby terminated effective immediately.

[Signature page follows]

IN WITNESS WHEREOF, the parties hereto have caused this Termination Agreement to be executed as of the day and year first above written.

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;JCP Investment Partnership, LP | &nbsp;&nbsp;JCP Investment Partnership, LP | &nbsp;&nbsp;JCP Investment Partnership, LP |
| &nbsp;&nbsp;By: | &nbsp;&nbsp; JCP Investment Management, LLC<br> Investment Manager | &nbsp;&nbsp; JCP Investment Management, LLC<br> Investment Manager |
| &nbsp;&nbsp;By: | &nbsp;&nbsp; /s/ James C. Pappas | &nbsp;&nbsp; /s/ James C. Pappas |
|  | &nbsp;&nbsp;Name: | &nbsp;&nbsp;James C. Pappas |
|  | &nbsp;&nbsp;Title: | &nbsp;&nbsp;Managing Member |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;JCP Investment Partners, LP | &nbsp;&nbsp;JCP Investment Partners, LP | &nbsp;&nbsp;JCP Investment Partners, LP |
| &nbsp;&nbsp;By: | &nbsp;&nbsp; JCP Investment Holdings, LLC<br> General Partner | &nbsp;&nbsp; JCP Investment Holdings, LLC<br> General Partner |
| &nbsp;&nbsp;By: | &nbsp;&nbsp; /s/ James C. Pappas | &nbsp;&nbsp; /s/ James C. Pappas |
|  | &nbsp;&nbsp;Name: | &nbsp;&nbsp;James C. Pappas |
|  | &nbsp;&nbsp;Title: | &nbsp;&nbsp;Sole Member |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;JCP Investment Holdings, LLC | &nbsp;&nbsp;JCP Investment Holdings, LLC | &nbsp;&nbsp;JCP Investment Holdings, LLC |
| &nbsp;&nbsp;By: | &nbsp;&nbsp; /s/ James C. Pappas | &nbsp;&nbsp; /s/ James C. Pappas |
|  | &nbsp;&nbsp;Name: | &nbsp;&nbsp;James C. Pappas |
|  | &nbsp;&nbsp;Title: | &nbsp;&nbsp;Sole Member |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;JCP Investment Management, LLC | &nbsp;&nbsp;JCP Investment Management, LLC | &nbsp;&nbsp;JCP Investment Management, LLC |
| &nbsp;&nbsp;By: | &nbsp;&nbsp; /s/ James C. Pappas | &nbsp;&nbsp; /s/ James C. Pappas |
|  | &nbsp;&nbsp;Name: | &nbsp;&nbsp;James C. Pappas |
|  | &nbsp;&nbsp;Title: | &nbsp;&nbsp;Managing Member |

---

---

| |
|:---|
| &nbsp;&nbsp; /s/ James C. Pappas |
| &nbsp;&nbsp;James C. Pappas |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;Jumana Capital Investments LLC | &nbsp;&nbsp;Jumana Capital Investments LLC | &nbsp;&nbsp;Jumana Capital Investments LLC |
| &nbsp;&nbsp;By: | &nbsp;&nbsp; /s/ Christopher Martin | &nbsp;&nbsp; /s/ Christopher Martin |
|  | &nbsp;&nbsp;Name: | &nbsp;&nbsp;Christopher Martin |
|  | &nbsp;&nbsp;Title: | &nbsp;&nbsp;Manager |

---

---

| |
|:---|
| &nbsp;&nbsp; /s/ Christopher Martin |
| &nbsp;&nbsp;Christopher Martin |

---

## Exhibit 99.2

Exhibit 99.2

**<u>JOINT FILING AGREEMENT</u>**

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including additional amendments thereto) with respect to the shares of Common Stock, $0.01 par value, of Denny's Corporation, a Delaware corporation. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

---

| | |
|:---|:---|
| Jumana Capital Investments LLC | Jumana Capital Investments LLC |
| By: | /s/ Christopher R. Martin |
|  | Christopher R. Martin, Manager |
| Date: | 11/04/2025 |

---

---

| | |
|:---|:---|
| Martin Christopher Ross | Martin Christopher Ross |
| By: | /s/ Christopher R. Martin |
|  | Christopher R. Martin |
| Date: | 11/04/2025 |

---

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 1)**

**DENNY'S Corp**

*(Name of Issuer)*

**Common Stock, $0.01 par value**

*(Title of Class of Securities)*

**24869P104**

*(CUSIP Number)*

**JAMES C. PAPPAS**<br>JCP INVESTMENT MANAGEMENT, LLC<br>1177 West Loop South, Suite 1320<br>Houston TX 77027<br>713-333-5540

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**11/03/2025**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **24869P104** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**JCP Investment Partnership, LP** | Name of reporting person<br>**JCP Investment Partnership, LP** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**TEXAS** | Citizenship or place of organization<br>**TEXAS** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**455717.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**455717.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**455717.00** | Aggregate amount beneficially owned by each reporting person<br>**455717.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.9%** | Percent of class represented by amount in Row (11)<br>**0.9%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**PN** | Type of Reporting Person (See Instructions)<br>**PN** | |

---

| **CUSIP No.** | **24869P104** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**JCP Investment Partners, LP** | Name of reporting person<br>**JCP Investment Partners, LP** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**TEXAS** | Citizenship or place of organization<br>**TEXAS** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**455717.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**455717.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**455717.00** | Aggregate amount beneficially owned by each reporting person<br>**455717.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.9%** | Percent of class represented by amount in Row (11)<br>**0.9%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**PN** | Type of Reporting Person (See Instructions)<br>**PN** | |

---

| **CUSIP No.** | **24869P104** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**JCP Investment Holdings, LLC** | Name of reporting person<br>**JCP Investment Holdings, LLC** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**TEXAS** | Citizenship or place of organization<br>**TEXAS** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**455717.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**455717.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**455717.00** | Aggregate amount beneficially owned by each reporting person<br>**455717.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.9%** | Percent of class represented by amount in Row (11)<br>**0.9%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

| **CUSIP No.** | **24869P104** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**JCP Investment Management, LLC** | Name of reporting person<br>**JCP Investment Management, LLC** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**TEXAS** | Citizenship or place of organization<br>**TEXAS** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**829491.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**829491.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**829491.00** | Aggregate amount beneficially owned by each reporting person<br>**829491.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**1.6%** | Percent of class represented by amount in Row (11)<br>**1.6%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IA** | Type of Reporting Person (See Instructions)<br>**IA** | |

---

| **CUSIP No.** | **24869P104** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Pappas James C** | Name of reporting person<br>**Pappas James C** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**829491.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**829491.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**829491.00** | Aggregate amount beneficially owned by each reporting person<br>**829491.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**1.6%** | Percent of class represented by amount in Row (11)<br>**1.6%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

| **CUSIP No.** | **24869P104** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Jumana Capital Investments LLC** | Name of reporting person<br>**Jumana Capital Investments LLC** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**TEXAS** | Citizenship or place of organization<br>**TEXAS** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**4574905.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**4574905.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**4574905.00** | Aggregate amount beneficially owned by each reporting person<br>**4574905.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**8.9%** | Percent of class represented by amount in Row (11)<br>**8.9%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

| **CUSIP No.** | **24869P104** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Martin Christopher Ross** | Name of reporting person<br>**Martin Christopher Ross** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**4574905.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**4574905.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**4574905.00** | Aggregate amount beneficially owned by each reporting person<br>**4574905.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**8.9%** | Percent of class represented by amount in Row (11)<br>**8.9%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Stock, $0.01 par value

**(b) Name of Issuer:**
DENNY'S Corp

**(c) Address of Issuer's Principal Executive Offices:**
203 EAST MAIN STREET, SPARTANBURG, SC, 29319

**Item 5. Interest in Securities of the Issuer**

**(a)**
Item 5(a) is hereby amended and restated to read as follows:

The aggregate percentage of Shares reported owned by each person named herein is based upon 51,498,994 Shares outstanding as of October 29, 2025, which is the total number of Shares outstanding as reported in Exhibit 2.1 to the Issuer's Current Report on Form 8-K filed with the Securities and Exchange Commission on November 4, 2025.

As of the date hereof, JCP Partnership beneficially owned 455,717 Shares, constituting approximately 0.9% of the Shares outstanding. JCP Partners, as the general partner of JCP Partnership, may be deemed the beneficial owner of the 455,717 Shares owned by JCP Partnership, constituting approximately 0.9% of the Shares outstanding. JCP Holdings, as the general partner of JCP Partners, may be deemed the beneficial owner of the 455,717 Shares owned by JCP Partnership, constituting approximately 0.9% of the Shares outstanding.

As of the date hereof, 373,774 Shares were held in the JCP Accounts, constituting approximately 0.7% of the Shares outstanding. JCP Management, as the investment manager of JCP Partnership and the JCP Accounts, may be deemed the beneficial owner of the (i) 455,717 Shares owned by JCP Partnership and (ii) 373,774 Shares held in the JCP Accounts, constituting approximately 1.6% of the Shares outstanding. Mr. Pappas, as the managing member of JCP Management and sole member of JCP Holdings, may be deemed the beneficial owner of the (i) 455,717 Shares owned by JCP Partnership and (ii) 373,774 Shares held in the JCP Accounts, constituting approximately 1.6% of the Shares outstanding.

As of the date hereof, Jumana Capital beneficially owned 4,574,905 Shares, including 50,000 Shares underlying certain call options that are currently exercisable, constituting approximately 8.9% of the Shares outstanding. Mr. Martin, as the Manager of Jumana Capital, may be deemed the beneficial owner of the 4,574,905 Shares owned by Jumana Capital, constituting approximately 8.9% of the Shares outstanding.

Each of the Reporting Persons specifically disclaims beneficial ownership of the securities reported herein that he or it does not directly own.

**(b)**
—

**(c)**
Item 5(c) is hereby amended and restated to read as follows:

The transactions in the securities of the Issuer by the Reporting Persons since the filing of the Schedule 13D are set forth in Exhibit 1 and are incorporated herein by reference. All of such transactions were effected in the open market unless otherwise noted therein.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

Item 6 is hereby amended to add the following:

On November 4, 2025, the Reporting Persons executed the Termination Agreement, thereby terminating the Group Agreement. A copy of the Termination Agreement is attached as Exhibit 99.1 hereto and is incorporated herein by reference.

On November 4, 2025, Jumana Capital and Mr. Martin entered into a Joint Filing Agreement pursuant to which they agreed to the joint filing on behalf of each of them of statements on Schedule 13D with respect to the securities of the Issuer to the extent required by applicable law. A copy of the Joint Filing Agreement is attached hereto as Exhibit 99.2 and is incorporated herein by reference.

As previously disclosed, Jumana Capital sold short exchange-listed put options referencing an aggregate of 37,500 Shares at an exercise price of $5 per Share, which had an expiration date of September 19, 2025. All of such put options expired on September 19, 2025.

As previously disclosed, Jumana Capital purchased exchange-listed call options referencing an aggregate of 75,000 Shares, which had an exercise price of $5 per Share and an expiration date of September 19, 2025. As set forth in Exhibit 1, all of such call options were exercised on September 19, 2025.

As previously disclosed, Jumana Capital purchased exchange-listed call options referencing an aggregate of 660,000 Shares, which had an exercise price of $5 per Share and an expiration date of November 21, 2025. As set forth in Exhibit 1, Jumana Capital sold all of such call options on October 21, 2025, and accordingly, Jumana Capital no longer has any exposure to such call options.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** JCP Investment Partnership, LP

**Signature:** /s/ James C. Pappas

**Name/Title:** James C. Pappas, Managing Member of JCP Investment Management, LLC, its Investment Manager

**Date:** 11/04/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** JCP Investment Partners, LP

**Signature:** /s/ James C. Pappas

**Name/Title:** James C. Pappas, Sole Member of JCP Investment Holdings, LLC, its General Partner

**Date:** 11/04/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** JCP Investment Holdings, LLC

**Signature:** /s/ James C. Pappas

**Name/Title:** James C. Pappas, Sole Member

**Date:** 11/04/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** JCP Investment Management, LLC

**Signature:** /s/ James C. Pappas

**Name/Title:** James C. Pappas, Managing Member

**Date:** 11/04/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Pappas James C

**Signature:** /s/ James C. Pappas

**Name/Title:** James C. Pappas

**Date:** 11/04/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Jumana Capital Investments LLC

**Signature:** /s/ Christopher R. Martin

**Name/Title:** Christopher R. Martin, Manager

**Date:** 11/04/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Martin Christopher Ross

**Signature:** /s/ Christopher R. Martin

**Name/Title:** Christopher R. Martin

**Date:** 11/04/2025