Infinity Natural Resources, Inc.: 5%+ holders

As of November 7, 2026, 7 holders' latest Schedule 13D or 13G filings report owning 5% or more of Infinity Natural Resources, Inc. The largest reported stake is INR (II) Investments, LLC's, at 41.44%. 20 filings are on record since July 17, 2025 (Schedule 13D, March 18, 2026).

Who owns Infinity Natural Resources, Inc.?

Silvercrest Asset Management Group LLC also filed stake reports on 1 other company ↓

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Key facts

• Filing 2026-08-14 · Reporting person: American Century Capital Portfolios, Inc. · Sole voting: 1,140,000 · Shared voting: 0 · Sole dispositive: 1,140,000 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-08-14
• Filing 2026-08-14 · Reporting person: Silvercrest Asset Management Group LLC · Sole voting: 0 · Shared voting: 1,037,535 · Sole dispositive: 0 · Shared dispositive: 1,037,535 · SCHEDULE 13G, 2026-08-14
• Filing 2026-07-28 · Reporting person: Franklin Resources, Inc. · Sole voting: 2,343,737 · Shared voting: 0 · Sole dispositive: 2,343,737 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-07-28
• Filed 2026-05-07 · Holder: Franklin Resources, Inc. · Percent: 10% · SCHEDULE 13G/A
• Filed 2026-05-01 · Holder: American Century Investment Management, Inc. · Percent: 10.3% · SCHEDULE 13G/A

Infinity Natural Resources, Inc. has 20 Schedule 13D or 13G filings on record since 2025-07-17. 7 holders' latest filing reports 5% or more of class a common stock, par value $0.01 per share. Each figure below is the holder's own, as filed, with the filing linked.

Holders

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More on Infinity Natural Resources, Inc. and the records around it.

Infinity Natural Resources, Inc. elsewhere on the record

• Leadership changes Aug 2026
• Who owns it

Companies that share a holder

• Silvercrest Asset Management Group LLC also filed stake reports on 1 other company: Centerspace (Feb 2026)
• Jain Global LLC also filed stake reports on 3 other companies: Damora Therapeutics, Inc. (May 2026), M3-Brigade Acquisition V Corp. (Mar 2026), 1RT Acquisition Corp. (Nov 2025)
• CIBC Private Wealth Group LLC also filed stake reports on 5 other companies: PLAINS ALL AMERICAN PIPELINE LP (Oct 2026), ARKO Petroleum Corp. (Aug 2026)

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What the Full Report on Infinity Natural Resources, Inc. covers

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2. Which Company This Is

3. What They Do, And How The Money Works

4. Who Runs It, And How To Reach Them

5. The Money: Funding, Valuation, Runway

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Voting and dispositive power, as filed

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The latest filing identifies Infinity Natural Resources, Inc. by CUSIP 456941103 and gives its principal executive office as 2605 Cranberry Square, Morgantown, WV 26508 (SCHEDULE 13G/A, 2026-08-14).

Purpose of Transaction (Item 4)

Etineles Holdings V, LLC

The information in Item 6 of this Schedule 13D is incorporated herein by reference. The Reporting Persons intend to review their investment in the Issuer on an ongoing basis and, in the course of their review, may take actions (including through their affiliates) with respect to their investment or the Issuer, including communicating with the board of directors of the Issuer (the "Board"), members of management or other security-holders of the Issuer, or other third parties from time to time, and taking steps to explore, prepare for or implement a course of action, including, without limitation, engaging advisors, including legal, financial, regulatory, technical and/or industry advisors, to assist in any review, evaluating strategic alternatives as they may become available and entering into confidentiality, standstill or other similar agreements with the Issuer, its subsidiaries and/or any advisors or third parties. Such discussions and other actions may relate to, subject to the terms and conditions of the documents described herein to which the Reporting Persons are a party, various alternative courses of action, including, without limitation, those related to an extraordinary corporate transaction (including, but not limited to a merger, reorganization or liquidation) involving the Issuer or any of its subsidiaries; business combinations involving the Issuer or any of its subsidiaries, a sale or transfer of a material amount of assets of the Issuer or any of its …The first part of Item 4 of the SCHEDULE 13D filed 2026-03-02; the filing has the rest

INR (II) Investments, LLC

The information in Item 6 of this Schedule 13D is incorporated herein by reference. The Reporting Persons intend to review their investment in the Issuer on an ongoing basis and, in the course of their review, may take actions (including through their affiliates) with respect to their investment or the Issuer, including communicating with the board of directors of the Issuer (the "Board"), members of management or other security-holders of the Issuer, or other third parties from time to time, and taking steps to explore, prepare for or implement a course of action, including, without limitation, engaging advisors, including legal, financial, regulatory, technical and/or industry advisors, to assist in any review, evaluating strategic alternatives as they may become available and entering into confidentiality, standstill or other similar agreements with the Issuer, its subsidiaries and/or any advisors or third parties. Such discussions and other actions may relate to, subject to the terms and conditions of the documents described herein to which the Reporting Persons are a party, various alternative courses of action, including, without limitation, those related to an extraordinary corporate transaction (including, but not limited to a merger, reorganization or liquidation) involving the Issuer or any of its subsidiaries; business combinations involving the Issuer or any of its subsidiaries, a sale or transfer of a material amount of assets of the Issuer or any of its …The first part of Item 4 of the SCHEDULE 13D filed 2026-03-18; the filing has the rest

Timeline

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Questions about who owns Infinity Natural Resources, Inc.

Who owns Infinity Natural Resources, Inc.?

On this page, 7 holders' latest ownership filings report 5% or more of Infinity Natural Resources, Inc.: INR (II) Investments, LLC (41.44%, Schedule 13D, filed 2026-03-18), Etineles Holdings V, LLC (16.19%, Schedule 13D, filed 2026-03-02), Franklin Resources, Inc. (12.5%, Schedule 13G/A, filed 2026-07-28), American Century Investment Management, Inc. (11.4%, Schedule 13G/A, filed 2026-08-14) and Chase Oil Corporation (11.3%, Schedule 13G, filed 2026-01-21); 2 more are listed above.

Who are the largest shareholders of Infinity Natural Resources, Inc.?

By the share each holder's latest filing reports, the largest holders of Infinity Natural Resources, Inc. on this page are INR (II) Investments, LLC (41.44%), Etineles Holdings V, LLC (16.19%) and Franklin Resources, Inc. (12.5%).

When did INR (II) Investments, LLC buy into Infinity Natural Resources, Inc.?

The filings give report dates, not purchase dates. The earliest filing from INR (II) Investments, LLC on this page is the Schedule 13D, filed 2026-03-18, reporting 41.44%.

Is this an audit or a full list?

Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 20 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.

Also on the record for Infinity Natural Resources, Inc.

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Where this comes from

Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.

Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.

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