Capital International Investors reports 7.74M ATO shares

Capital International Investors amended its Schedule 13G/A to report beneficial ownership of 7,740,023 shares of Atmos Energy Corporation common stock, representing 4.7% of the 165,438,946 shares the filer believes are outstanding.

Rhea-AI Filing Summary

Capital International Investors amended its Schedule 13G/A to report beneficial ownership of 7,740,023 shares of Atmos Energy Corporation common stock, representing 4.7% of the 165,438,946 shares the filer believes are outstanding. The filing shows sole voting power for 7,666,261 shares and sole dispositive power for 7,740,023. The form is signed on 05/13/2026.

Insights

Institutional Ownership Analyst

Large passive stake reported: 7.74M shares (4.7%).

Capital International Investors discloses a 4.7% position in Atmos Energy, with 7,740,023 shares beneficially owned and full dispositive control. This scale is consistent with a meaningful institutional holding but remains below the 5% Schedule 13D threshold.

Future filings may show changes in position; transactions by the investment management entities or reclassifications could alter reported voting or dispositive powers.

Securities Compliance Counsel

Amendment clarifies ownership and voting/dispositive powers across affiliates.

The filing attributes ownership to Capital International Investors and describes affiliated investment management entities. It specifies sole voting power of 7,666,261 and sole dispositive power of 7,740,023, reflecting internal allocation of authority.

Disclosure follows Schedule 13G/A practice; the 4.7% stake keeps the filer in a passive reporting posture under the filing regime.

Key Figures

Beneficial ownership: 7,740,023 shares Percent of class: 4.7% Shares believed outstanding: 165,438,946 shares +3 more

6 metrics

Beneficial ownership 7,740,023 shares reported beneficially owned

Percent of class 4.7% of 165,438,946 shares believed outstanding

Shares believed outstanding 165,438,946 shares shares the filer believes are outstanding

Sole voting power 7,666,261 shares sole power to vote or direct the vote

Sole dispositive power 7,740,023 shares sole power to dispose or direct disposition

Signature date 05/13/2026 filing signed by Senior Vice President

Key Terms

Schedule 13G/A, Beneficially owned, Sole dispositive power

3 terms

Schedule 13G/A regulatory

"Amendment No. 2 to Schedule 13G/A reporting ownership"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Beneficially owned financial

"CII is deemed to be the beneficial owner of 7,740,023 shares"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Sole dispositive power regulatory

"Sole power to dispose or to direct the disposition of: 7,740,023"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does Capital International Investors report in ATO?

Capital International Investors reports beneficial ownership of 7,740,023 shares, which it states represents 4.7% of the 165,438,946 shares it believes are outstanding.

How much voting power does the filer hold in Atmos Energy (ATO)?

The filing shows sole voting power for 7,666,261 shares and no shared voting power, indicating primary control of voting on that share portion within the filer’s affiliated entities.

Does this filing put the filer over 5% ownership in ATO?

No. The amendment reports a 4.7% position of Atmos Energy common stock, which is below the 5% threshold that typically triggers Schedule 13D reporting obligations.

Who signed the Schedule 13G/A amendment for Capital International Investors?

The filing is signed by Aaron Espin, identified as Senior Vice President, with a signature date of 05/13/2026 on the amendment.

Does the filing describe the affiliates included in the ownership figure?

Yes. The amendment states the position is held by Capital International Investors as a division of Capital Research and Management Company and affiliated investment management entities, collectively providing services under the name Capital International Investors.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/14/2026 - 12:52 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

Atmos Energy Corporation

(Name of Issuer)

Common Stock

(Title of Class of Securities)

049560105

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 049560105

1

Names of Reporting Persons

Capital International Investors

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 7,666,261.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 7,740,023.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

7,740,023.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

4.7 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Atmos Energy Corporation
(b)	Address of issuer's principal executive offices: 1800 Three Lincoln Ctr, 5430 LBJ Freeway, Dallas, TX 75240
Item 2.
(a)	Name of person filing: Capital International Investors
(b)	Address or principal business office or, if none, residence: 333 South Hope Street, 55th Fl, Los Angeles, CA 90071
(c)	Citizenship: N/A
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 049560105
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 7,740,023 ** **Capital International Investors ("CII") is a division of Capital Research and Management Company ("CRMC"), as well as its investment management subsidiaries and affiliates Capital Bank and Trust Company, Capital International, Inc., Capital International Limited, Capital International Sarl, Capital International K.K., Capital Group Private Client Services, Inc., and Capital Group Investment Management Private Limited (together with CRMC, the "investment management entities"). CII's divisions of each of the investment management entities collectively provide investment management services under the name "Capital International Investors." CII is deemed to be the beneficial owner of 7,740,023 shares or 4.7% of the 165,438,946 shares believed to be outstanding.
(b)	Percent of class: 4.7 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 7,666,261
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 7,740,023
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Capital International Investors

Signature:	Aaron Espin
Name/Title:	Senior Vice President
Date:	05/13/2026