As of November 6, 2026, 4 holders' latest Schedule 13D or 13G filings report owning 5% or more of Atmos Energy Corporation. The largest reported stake is BlackRock, Inc.'s, at 8.7%. 9 filings are on record since August 14, 2025 (Schedule 13G/A, July 27, 2026).
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Key facts
- · Reporting person: Wellington Management Group LLP · Sole voting: 0 · Shared voting: 8,696,682 · Sole dispositive: 0 · Shared dispositive: 9,185,788 · SCHEDULE 13G/A, 2026-08-13
- · Reporting person: BlackRock, Inc. · Sole voting: 13,524,447 · Shared voting: 0 · Sole dispositive: 14,538,261 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-07-27
- · Reporting person: Capital International Investors · Sole voting: 7,666,261 · Shared voting: 0 · Sole dispositive: 7,740,023 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-05-14
- · Reporting person: Vanguard Capital Management · Sole voting: 1,732,663 · Shared voting: 0 · Sole dispositive: 12,468,210 · Shared dispositive: 0 · SCHEDULE 13G, 2026-04-29
- · Holder: Vanguard Portfolio Management · Percent: 5.62% · SCHEDULE 13G
Atmos Energy Corporation has 9 Schedule 13D or 13G filings on record since 2025-08-14. 4 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| BlackRock, Inc. | 8.7% | 14,538,261 | SCHEDULE 13G/A, 2026-07-27 | 2026-06-30 |
| Vanguard Capital Management | 7.53% | 12,468,210 | SCHEDULE 13G, 2026-04-29 | 2026-03-31 |
| Vanguard Portfolio Management | 5.62% | 9,305,025 | SCHEDULE 13G, 2026-04-28 | 2026-03-31 |
| Wellington Management Group LLP | 5.5% | 9,185,798 | SCHEDULE 13G/A, 2026-08-13 | 2026-06-30 |
| T. Rowe Price Associates, Inc. | 4.9% | 7,745,683 | SCHEDULE 13G/A, 2025-08-14 | 2025-06-30 |
| Capital International Investors | 4.7% | 7,740,023 | SCHEDULE 13G/A, 2026-05-14 | 2026-03-31 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-26 | 2026-03-13 |
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Keep reading
More on Atmos Energy Corporation and the records around it.
Atmos Energy Corporation elsewhere on the record
- Leadership changes Aug 2026
- Who owns it
Companies that share a holder
- Capital International Investors also filed stake reports on 96 other companies: Aurora Innovation, Inc. (Nov 2026), Arxis, Inc. (Aug 2026), Astronics Corp. (Aug 2026)
- T. Rowe Price Associates, Inc. also filed stake reports on 191 other companies: PACIFIC BIOSCIENCES OF CALIF (Nov 2026), APARTMENT INVT & MGMT CO -A (Oct 2026), BETA BIONICS INC (Oct 2026)
- Wellington Management Group LLP also filed stake reports on 240 other companies: Hub Group, Inc. (Oct 2026), Latham Group, Inc. (Oct 2026), Redwood Trust, Inc. (Oct 2026)
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What the Full Report on Atmos Energy Corporation covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| BlackRock, Inc. | 13,524,447 | 0 | 14,538,261 | 0 | SCHEDULE 13G/A, 2026-07-27 |
| Vanguard Capital Management | 1,732,663 | 0 | 12,468,210 | 0 | SCHEDULE 13G, 2026-04-29 |
| Wellington Management Group LLP | 0 | 8,696,682 | 0 | 9,185,788 | SCHEDULE 13G/A, 2026-08-13 |
| Wellington Group Holdings LLP | 0 | 8,696,682 | 0 | 9,185,788 | SCHEDULE 13G/A, 2026-08-13 |
| Wellington Investment Advisors Holdings LLP | 0 | 8,696,682 | 0 | 9,185,788 | SCHEDULE 13G/A, 2026-08-13 |
| Wellington Management Company LLP | 0 | 8,473,354 | 0 | 8,527,889 | SCHEDULE 13G/A, 2026-08-13 |
| Capital International Investors | 7,666,261 | 0 | 7,740,023 | 0 | SCHEDULE 13G/A, 2026-05-14 |
The latest filing identifies Atmos Energy Corporation by CUSIP 049560105 and gives its principal executive office as 1800 3 Lincoln Ctr, 5430 Lbj Freeway, Dallas (SCHEDULE 13G/A, 2026-08-13).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-14 | T. Rowe Price Associates, Inc. | 4.9% | SCHEDULE 13G/A |
| 2025-11-12 | Wellington Management Group LLP | 6.5% | SCHEDULE 13G/A |
| 2025-12-04 | BlackRock, Inc. | 10% | SCHEDULE 13G/A |
| 2026-03-26 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-28 | Vanguard Portfolio Management | 5.62% | SCHEDULE 13G |
| 2026-04-29 | Vanguard Capital Management | 7.53% | SCHEDULE 13G |
| 2026-05-14 | Capital International Investors | 4.7% | SCHEDULE 13G/A |
| 2026-07-27 | BlackRock, Inc. | 8.7% | SCHEDULE 13G/A |
| 2026-08-13 | Wellington Management Group LLP | 5.5% | SCHEDULE 13G/A |
Questions about who owns Atmos Energy Corporation
Who owns Atmos Energy Corporation?
On this page, 4 holders' latest ownership filings report 5% or more of Atmos Energy Corporation: BlackRock, Inc. (8.7%, Schedule 13G/A, filed 2026-07-27), Vanguard Capital Management (7.53%, Schedule 13G, filed 2026-04-29), Vanguard Portfolio Management (5.62%, Schedule 13G, filed 2026-04-28) and Wellington Management Group LLP (5.5%, Schedule 13G/A, filed 2026-08-13).
Who are the largest shareholders of Atmos Energy Corporation?
By the share each holder's latest filing reports, the largest holders of Atmos Energy Corporation on this page are BlackRock, Inc. (8.7%), Vanguard Capital Management (7.53%) and Vanguard Portfolio Management (5.62%).
When did BlackRock, Inc. buy into Atmos Energy Corporation?
The filings give report dates, not purchase dates. The earliest filing from BlackRock, Inc. on this page is the Schedule 13G/A, filed 2025-12-04, reporting 10%; its latest, Schedule 13G/A filed 2026-07-27, reports 8.7%. That earliest filing is itself an amendment, which updates an earlier report.
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%); 9 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 Atmos Energy Corporation
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| November 4, 2026 | Leadership change: Kim R. Cocklin departs, Director | — | Leadership changes | Source |
| August 10, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
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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.