Capital World Investors owns 11.57M CNM shares

Core & Main, Inc. reports a Schedule 13G filing showing Capital World Investors beneficially owns 11,571,392 shares.

Rhea-AI Filing Summary

Core & Main, Inc. reports a Schedule 13G filing showing Capital World Investors beneficially owns 11,571,392 shares. The filing states this represents 6.2% of 188,072,306 shares outstanding as of 03/31/2026.

The filing attributes sole voting power and sole dispositive power over the 11,571,392 shares to Capital World Investors and lists the filing signer as a senior vice president and associate general counsel of Capital Research and Management Company.

Insights

Institutional Ownership Analyst

Large passive position disclosed: 11.57M shares (6.2%).

Capital World Investors is reported as the beneficial owner of 11,571,392 shares with sole voting and dispositive power. The filing uses a Schedule 13G format, which typically signals passive or passive-investor reporting rather than an activist intent.

The position equals 6.2% of the 188,072,306 shares outstanding as of 03/31/2026; subsequent filings may update holdings or ownership percentages. The filing names the legal signer and lists related investment management entities.

Corporate Governance Specialist

Disclosure clarifies voting and dispositive authority for the position.

The filing states Capital World Investors holds sole voting power and sole dispositive power over 11,571,392 shares. That attribution affects vote counting for shareholder matters where ownership thresholds matter.

Because this is a 13G filing, there is no express change-of-control language; any material changes would appear in amended Schedule 13G or a different filing type.

Key Figures

Beneficially owned shares: 11,571,392 shares Percent of class: 6.2% Shares outstanding: 188,072,306 shares +1 more

4 metrics

Beneficially owned shares 11,571,392 shares Amount beneficially owned by Capital World Investors

Percent of class 6.2% Percent of 188,072,306 shares outstanding as of <date>03/31/2026</date>

Shares outstanding 188,072,306 shares Shares believed to be outstanding as of <date>03/31/2026</date>

CUSIP 21874C102 Core & Main, Inc. Common Stock CUSIP

Key Terms

Schedule 13G, beneficially owned, sole voting power, dispositive power

4 terms

Schedule 13G regulatory

"Capital World Investors is deemed to be the beneficial owner"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

beneficially owned financial

"Amount beneficially owned: 11,571,392"

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 voting power governance

"Sole Voting Power 11,571,392.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

dispositive power governance

"Sole Dispositive Power 11,571,392.00"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

FAQ

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

What stake does Capital World Investors hold in Core & Main (CNM)?

Capital World Investors holds 11,571,392 shares (6.2%). The Schedule 13G states this equals 6.2% of Core & Main's 188,072,306 shares outstanding as of 03/31/2026 and reports sole voting and dispositive power.

What filing did Capital World Investors submit for CNM?

They filed a Schedule 13G. The filing format indicates a passive beneficial ownership disclosure rather than an active solicitation or control filing, signed by a senior vice president and associate general counsel.

Does the 13G filing indicate Capital World Investors can vote the shares?

Yes; sole voting power is reported for 11,571,392 shares. The document lists both sole voting power and sole dispositive power over those shares in the ownership section.

What is the reference share count and date in the filing?

Shares outstanding are listed as 188,072,306 as of 03/31/2026. The 11,571,392-share holding is presented as 6.2% of that outstanding share count per the Schedule 13G.

Who signed the Schedule 13G for Capital World Investors?

Jae Won Chung signed the filing. The signature block lists Jae Won Chung as Senior Vice President and Associate General Counsel, Capital Research and Management Company, dated 05/13/2026.

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

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Accepted by SEC EDGAR 05/14/2026 - 01:55 PM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Core & Main, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

21874C102

(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): 21874C102

1

Names of Reporting Persons

Capital World 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 11,571,392.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 11,571,392.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

11,571,392.00

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)

6.2 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Core & Main, Inc.
(b)	Address of issuer's principal executive offices: 1830 Craig Park Court, St. Louis, MO 63146
Item 2.
(a)	Name of person filing: Capital World Investors
(b)	Address or principal business office or, if none, residence: 333 SOUTH HOPE STREET, 55TH FLOOR, LOS ANGELES, CALIFORNIA 90071
(c)	Citizenship: N/A
(d)	Title of class of securities: Common Stock
(e)	CUSIP Number(s): 21874C102
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: 11,571,392 ** **Capital World Investors ("CWI") 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"). CWI's divisions of each of the investment management entities collectively provide investment management services under the name "Capital World Investors." CWI is deemed to be the beneficial owner of 11,571,392 shares or 6.2% of the 188,072,306 shares believed to be outstanding.
(b)	Percent of class: 6.2 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 11,571,392
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 11,571,392
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
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 World Investors

Signature:	Jae Won Chung
Name/Title:	Senior Vice President and Associate General Counsel, Capital Research and Management Company
Date:	05/13/2026