Brian P. Pietrandrea - 03 Mar 2026 Form 4 Insider Report for INFINITY NATURAL RESOURCES, INC. (INR)

Role: Chief Accounting Officer
Signature: /s/ Raleigh Wolfe, as Attorney-in-Fact for the Reporting Person
Issuer symbol: INR
Transactions as of: 03 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 05 Mar 2026, 18:50:43 UTC
Previous filing: 17 Jul 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Pietrandrea Brian P.	Chief Accounting Officer	C/O INFINITY NATURAL RESOURCES, INC., 2605 CRANBERRY SQUARE, MORGANTOWN	/s/ Raleigh Wolfe, as Attorney-in-Fact for the Reporting Person	05 Mar 2026	0001784163

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	INR	Restricted Stock Units (2026)	Award		+14,791		$0.000000^*	14,791	03 Mar 2026	Class A Common Stock	14,791		Direct	F1
transaction	INR	Performance Stock Units (2026)	Award		+4,930		$0.000000^*	4,930	03 Mar 2026	Class A Common Stock	4,930		Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit ("RSU") represents the contingent right to receive one share of Class A common stock, $0.01 par value per share (the "Class A Common Stock"), of the Issuer. The RSUs vest in three equal annual installments beginning one year from the date of grant, subject to the Reporting Person's continued service through such dates.
F2	Each performance stock unit ("PSU") represents a contingent right to receive from zero to three shares of Class A Common Stock depending upon the achievement of the Issuer's relative total shareholder return as compared to its peer group and absolute shareholder return, in each case, over the performance period beginning on January 1, 2026 and ending on December 31, 2028 and subject to the Reporting Person's continued service through the date that such performance results are determined.

Content

Each restricted stock unit ("RSU") represents the contingent right to receive one share of Class A common stock, $0.01 par value per share (the "Class A Common Stock"), of the Issuer. The RSUs vest in three equal annual installments beginning one year from the date of grant, subject to the Reporting Person's continued service through such dates.

Each performance stock unit ("PSU") represents a contingent right to receive from zero to three shares of Class A Common Stock depending upon the achievement of the Issuer's relative total shareholder return as compared to its peer group and absolute shareholder return, in each case, over the performance period beginning on January 1, 2026 and ending on December 31, 2028 and subject to the Reporting Person's continued service through the date that such performance results are determined.