# EDGAR Filing Document

**Accession Number:** 0002013745
**File Stem:** 0001193125-26-259859
**Filing Date:** 2026-6
**Character Count:** 9584
**Document Hash:** 8d4b71428061b8acf021ddf0db30debc
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-259859.hdr.sgml**: 20260605

**ACCESSION NUMBER**: 0001193125-26-259859

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

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260605

**DATE AS OF CHANGE**: 20260605

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Calumet, Inc. /DE
- **CENTRAL INDEX KEY:** 0002013745
- **STANDARD INDUSTRIAL CLASSIFICATION:** PETROLEUM REFINING [2911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 365098520
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-94559
- **FILM NUMBER:** 261070041

**BUSINESS ADDRESS:**
- **STREET 1:** 1060 N CAPITOL AVE
- **STREET 2:** SUITE 6-401
- **CITY:** INDIANAPOLIS
- **STATE:** IN
- **ZIP:** 46204
- **BUSINESS PHONE:** (317) 328-5660

**MAIL ADDRESS:**
- **STREET 1:** 1060 N CAPITOL AVE
- **STREET 2:** SUITE 6-401
- **CITY:** INDIANAPOLIS
- **STATE:** IN
- **ZIP:** 46204
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Heritage Group
- **CENTRAL INDEX KEY:** 0001350750

**ORGANIZATION NAME:**
- **EIN:** 351448549
- **FISCAL YEAR END:** 1231

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

**BUSINESS ADDRESS:**
- **STREET 1:** 6640 INTECH BLVD
- **STREET 2:** SUITE 200
- **CITY:** INDIANAPOLIS
- **STATE:** IN
- **ZIP:** 46278
- **BUSINESS PHONE:** 317-872-6010

**MAIL ADDRESS:**
- **STREET 1:** 6640 INTECH BLVD
- **STREET 2:** SUITE 200
- **CITY:** INDIANAPOLIS
- **STATE:** IN
- **ZIP:** 46278

### Attached PDF Documents

**Attachment 1:** `ck0000000000-ex99_a.pdf`

_No text found in this document._

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

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 1)**

**Calumet, Inc.**

*(Name of Issuer)*

**Common Stock, par value $0.01 per share**

*(Title of Class of Securities)*

**—**

*(CUSIP Number)*

**Amy Schumacher**<br>6640 Intech Blvd, Suite 200<br>Indianapolis IN 46278<br>(317) 872-6010

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

**06/05/2026**

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

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**The Heritage Group** | Name of reporting person<br>**The Heritage Group** | |
| 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>**INDIANA** | Citizenship or place of organization<br>**INDIANA** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**13640211.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**882974.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**13640211.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**882974.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**14523185.00** | Aggregate amount beneficially owned by each reporting person<br>**14523185.00** | |
| 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>**16.56%** | Percent of class represented by amount in Row (11)<br>**16.56%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**HC** | Type of Reporting Person (See Instructions)<br>**HC** | |

---

**Comment for Reporting Person:** The reported percentage is calculated based on 87,686,561 shares of the Issuer's Common Stock, par value $0.01 per share ("Common Stock") outstanding as of June 2, 2026, based on information provided by the Issuer.

**Item 1. Security and Issuer**

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

**(b) Name of Issuer:**
Calumet, Inc.

**(c) Address of Issuer's Principal Executive Offices:**
1060 N Capitol Ave, Suite 6-401, Indianapolis, IN, 46204

This Statement constitutes Amendment No. 1 ("Amendment No. 1") to the Schedule 13D filed by the Reporting Person with the Securities and Exchange Commission (the "SEC") on July 11, 2024 (the "2024 Schedule 13D" and, as hereby amended, the "Schedule 13D"). Except as specifically provided herein, this Amendment No. 1 does not modify any of the information previously reported in the 2024 Schedule 13D. Capitalized terms used but not defined in this Amendment No. 1 shall maintain the meanings herein as are ascribed to such terms in the 2024 Schedule 13D.

**Item 4. Purpose of Transaction**

Item 4 of the 2024 Schedule 13D is hereby amended to incorporate the following at the end thereof:

As previously reported and in connection with the July 2024 restructuring, the Reporting Person received warrants to acquire 1,020,000 shares of Common Stock at an exercise price of $20.00 per share (the "Heritage Warrants"). On May 15, 2026, the Reporting Person exercised the Heritage Warrants in full, receiving 393,002 shares of Common Stock in net settlement thereof resulting in a decrease in beneficial ownership of 626,998 shares of Common Stock.

On June 5, 2026, the General Partner Trustees approved a gift of 540,000 shares of Common Stock (the "Gift") directly held by the Reporting Person.

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

**(a)**
Item 5(a)-(c) of the 2024 Schedule 13D are each hereby amended and restated in their entirety as follows and as set forth in subsections (b) and (c) hereof:

The responses of the Reporting Person set forth in rows (11) and (13) of the cover page of this Amendment No. 1 are incorporated by reference into this Item 5(a).

The Reporting Person beneficially owns an aggregate of 14,523,185 shares of Common Stock, representing 16.56% of the 87,686,561 shares of Common Stock outstanding as of June 2, 2026, based on information provided by the Issuer. In this regard, the Reporting Person directly holds 12,440,211 shares of Common Stock with sole voting and dispositive power.

The Reporting Person serves as the Manager of The Heritage Group Investment Company, LLC, an Indiana manager-managed limited liability company ("Investment LLC"), and may be deemed to indirectly beneficially own 1,200,000 shares of Common Stock directly held by Investment LLC. In that capacity, the Reporting Person has sole voting and dispositive power over the Common Stock directly held by Investment LLC.

The Reporting Person also may be deemed to indirectly beneficially own certain shares of Common Stock directly held by Lumet Investments, Inc. (f/k/a Calumet, Incorporated), an Indiana corporation ("Lumet Investments"), in which the Reporting Person has an indirect interest through Asphalt Materials, Inc. ("AMI"). The Reporting Person does not control AMI and therefore disclaims beneficial ownership of shares of Common Stock directly held by Lumet Investments, but has reflected in shared voting and dispositive power on this Statement the 882,974 shares of Common Stock representing the Reporting Person's proportionate interest therein.

Pursuant to Rule 13d-4 of the Act, the Reporting Person declares that filing this statement shall not be deemed an admission that the Reporting Person, or any of the General Partner Trusts or General Partner Trustees, is a beneficial owner of the reported securities, for purposes of Section 13(d) and/or Section 13(g) or for any other purpose. Each of the General Partner Trusts and the General Partner Trustees disclaim beneficial ownership of the reported securities.

**(b)**
The responses of the Reporting Person set forth in rows (7) through (10) of the cover page of this Amendment No. 1 and the information set forth in Item 5(a) hereof are incorporated by reference into this Item 5(b).

**(c)**
Within the prior 60 days the Reporting Person has engaged in the following transactions:

Date                         Trade Type                                                                                                                                     Amount of Common Stock                     Price
05/15/2026              Disposition to Issuer pursuant to net settlement of the Heritage Warrants                                    626,998                                                  $32.536
06/05/2026              Gift of Common Stock                                                                                                                    540,000                                                  $0

### 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:** The Heritage Group

**Signature:** /s/ Amy Schumacher

**Name/Title:** Amy Schumacher, Chief Executive Officer

**Date:** 06/05/2026