# EDGAR Filing Document

**Accession Number:** 0001086699
**File Stem:** 0001193125-26-116234
**Filing Date:** 2026-3
**Character Count:** 7423
**Document Hash:** 3309458888f23a642926981336c137d4
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-116234.hdr.sgml**: 20260319

**ACCESSION NUMBER**: 0001193125-26-116234

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260317

**FILED AS OF DATE**: 20260319

**DATE AS OF CHANGE**: 20260319

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** GRAY STEVEN D
- **CENTRAL INDEX KEY:** 0001086699

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42499
- **FILM NUMBER:** 26775292

**MAIL ADDRESS:**
- **STREET 1:** 125 W. MISSOURI AVE., SUITE 450
- **CITY:** MIDLAND
- **STATE:** TX
- **ZIP:** 79701
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** INFINITY NATURAL RESOURCES, INC.
- **CENTRAL INDEX KEY:** 0002029118
- **STANDARD INDUSTRIAL CLASSIFICATION:** CRUDE PETROLEUM & NATURAL GAS [1311]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 2605 CRANBERRY SQUARE
- **CITY:** MORGANTOWN
- **STATE:** WV
- **ZIP:** 26508
- **BUSINESS PHONE:** 304-212-2350

**MAIL ADDRESS:**
- **STREET 1:** 2605 CRANBERRY SQUARE
- **CITY:** MORGANTOWN
- **STATE:** WV
- **ZIP:** 26508

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

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] 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**<sup>*</sup><br>GRAY STEVEN D<br><sub>(Last) (First) (Middle)</sub><br>C/O INFINITY NATURAL RESOURCES, INC.<br>2605 CRANBERRY SQUARE<br><sub>(Street)</sub><br>MORGANTOWN, WV 26508<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-03-17 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>INFINITY NATURAL RESOURCES, INC. [ INR ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<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

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Class A Common Stock | 2026-03-17 |  | M |  | 17411<sup>(1)</sup> | A | <sup>(2)</sup> | 17411 | D |  |
| Class A Common Stock |  |  |  |  |  |  |  | 50000 | I | By: SD Gray Family Partnership LP<sup>(3)</sup> |
| Class A Common Stock |  |  |  |  |  |  |  | 15000 | I | By: The Gray Management Trust<sup>(4)</sup> |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Restricted Stock Units <sup>(2025)</sup> | <sup>(2)</sup> | 2026-03-17 |  | M |  |  | 17411 | <sup>(5)</sup> | <sup>(5)</sup> | Class A Common Stock | 17411 | $0 | 0 | D |  |

---

### Footnotes:

(1) Reflects shares of Class A common stock, $0.01 par value per share (the "Common Stock"), of the Issuer delivered upon vesting and settlement of previously awarded restricted stock units ("RSUs").

(2) Each RSU represents the contingent right to receive one share of Common Stock.

(3) The Reporting Person exercises 100% control over SD Gray Family Partnership LP ("Gray Family Partnership"). Gray Family Partnership is managed by its general partner, SD Gray Management Co., of which the Reporting Person is the chief executive. By virtue of the relationship, the Reporting Person may be deemed to have or share beneficial ownership of the securities held of record by Gray Family Partnership, but the Reporting Person disclaims any beneficial ownership of the reported securities other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

(4) These securities are owned by The Gray Management Trust, of which the Reporting Person is a trustee and beneficiary. By virtue of the relationship, the Reporting Person may be deemed to have or share beneficial ownership of the securities held of record by The Gray Management Trust, but the Reporting Person disclaims any beneficial ownership of the reported securities other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

(5) On March 17, 2025, the Reporting Person was granted 17,411 RSUs, which vested in full on the first anniversary of the grant date.

**Signature:** /s/ Raleigh Wolfe, as Attorney-in-Fact for the Reporting Person  
**Date:** 2026-03-19

### 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.**