# EDGAR Filing Document

**Accession Number:** 0002092344
**File Stem:** 0001829126-25-008947
**Filing Date:** 2025-11
**Character Count:** 5144
**Document Hash:** 05511ce076dd8a8e0e4d87329ac5181f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001829126-25-008947.hdr.sgml**: 20251110

**ACCESSION NUMBER**: 0001829126-25-008947

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251103

**FILED AS OF DATE**: 20251110

**DATE AS OF CHANGE**: 20251110

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Aktiv Investment Management (Pty) Ltd
- **CENTRAL INDEX KEY:** 0002092344

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** T3
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39919
- **FILM NUMBER:** 251464388

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 19 AVENUE SAINT BARTHOLOMEW FRESNAYE
- **CITY:** CAPE TOWN
- **NON US STATE TERRITORY:** WESTERN CAPE
- **PROVINCE COUNTRY:** T3
- **ZIP:** 8005
- **BUSINESS PHONE:** 0027 798413465

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 19 AVENUE SAINT BARTHOLOMEW FRESNAYE
- **CITY:** CAPE TOWN
- **NON US STATE TERRITORY:** WESTERN CAPE
- **PROVINCE COUNTRY:** T3
- **ZIP:** 8005
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Montauk Renewables, Inc.
- **CENTRAL INDEX KEY:** 0001826600
- **STANDARD INDUSTRIAL CLASSIFICATION:** GAS & OTHER SERVICES COMBINED [4932]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 853189583
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 5313 CAMPBELLS RUN ROAD
- **STREET 2:** SUITE 200
- **CITY:** PITTSBURGH
- **STATE:** PA
- **ZIP:** 15205
- **BUSINESS PHONE:** 4127478700

**MAIL ADDRESS:**
- **STREET 1:** 5313 CAMPBELLS RUN ROAD
- **STREET 2:** SUITE 200
- **CITY:** PITTSBURGH
- **STATE:** PA
- **ZIP:** 15205

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Montauk Energy, Inc.
- **DATE OF NAME CHANGE:** 20200929

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

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Aktiv Investment Management (Pty) Ltd<br><sub>(Last) (First) (Middle)</sub><br>19 AVENUE SAINT BARTHOLOMEW FRESNAYE,<br><sub>(Street)</sub><br>CAPE TOWN, WESTERN CAPE, T3 8005<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Montauk Renewables, Inc. [ MNTK ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-11-03 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Common Stock | 22297688 | I | See Footnote<sup>(1)</sup> |
| Common Stock | 100 | D |  |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) On November 3, 2025, the Reporting Person entered into an investment management agreement with certain clients under which it has been granted full and exclusive voting and investment authority over 22,297,588 Shares held by its clients.

**Signature:** AKTIV INVESTMENT MANAGEMENT (PTY) LTD By: /s/ Adrian Steven Zetler, Title: Director  
**Date:** 2025-11-10

### Remarks:

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 4 (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.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**