Core & Main Inc.

Last updated September 27, 2026

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Organization details

Legal name: Core & Main Inc.
Ownership: Public
Status: Active
Sector (GICS): Industrials
SIC code: 5099 — Wholesale-Durable Goods, NEC
Jurisdiction of incorporation: Delaware
Headquarters city: ST. Louis
Headquarters state / province: Missouri
Headquarters country: United States
Fiscal year end: January
Ticker symbol: CNM
Primary stock exchange: NYSE

Identifiers

SEC CIK: 0001856525
EIN: 86-3149194
Wikidata ID: Q65066106

Board of directors

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Bhavani Amirthalingam · Director
Since 2023
Dennis G. Gipson · Director
Since 2023
James D. Hope · Director
Since 2024
James G. Castellano · Director
Since 2023
Kathleen M. Mazzarella · Director
Since 2023
M. Susan Hardwick · Director Overboarded
Since 2026
Margaret Newman · Director
Since 2023
Mark R. Witkowski · Director · Chief Executive Officer
Since 2025
Nathan K. Sleeper · Director
Since 2024
Orvin T. Kimbrough · Director
Since 2023
Robert M. Buck · Director
Since 2023
Stephen O. LeClair · Director · Executive Chair
Since 2023

Chief executives

Stephen O. LeClair · Chief Executive Officer

Dates unknown

Mark R. Witkowski · Chief Executive Officer

Dates unknown

Director election results

Annual meeting of June 23, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

5 of this board's directors also sit on 12 other boards. 8 are in the same sector.

Shared director Other board Same sector

ADI Global Distribution Inc. Same sector
via Nathan K. Sleeper and Stephen O. LeClair
AAON Inc. Same sector
via Stephen O. LeClair
American Water Works Company Inc.
via M. Susan Hardwick
Columbus McKinnon Corporation Same sector
via Nathan K. Sleeper
Dycom Industries Inc. Same sector
via Stephen O. LeClair
Edison International
via M. Susan Hardwick
NewJersey Resources Corporation
via M. Susan Hardwick
Pool Corporation Same sector
via James D. Hope
Resideo Technologies Inc. Same sector
via Nathan K. Sleeper
Tetra Tech Inc. Same sector
via M. Susan Hardwick
The Cigna Group
via Kathleen M. Mazzarella
Waste Management Inc. Same sector
via Kathleen M. Mazzarella

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months: $195,083; 2 purchases by 1 insider
Sold, last 12 months: $262,718; 2 sales by 1 insider

Date	Insider	Transaction	Shares	Price	Value
Oct 16, 2026	Mark R. Witkowski Director, Officer (Chief Executive Officer)	Gift	−19,596	—	—
Aug 4, 2026	Harper Carla D Officer (Senior VP, Human Resources)	Shares withheld for tax	−242	$46.32	$11,209
Jul 22, 2026	HUEBERT MICHAEL G. Officer (President)	Shares withheld for tax	−1,301	$43.75	$56,919
Jul 6, 2026	James D. Hope Director	Open-market purchase	+2,067	$46.01	$95,103
Jun 23, 2026	James G. Castellano Director	Grant or award	+2,799	—	—
Jun 23, 2026	Margaret Newman Director	Grant or award	+2,799	—	—
Jun 23, 2026	M. Susan Hardwick Director	Grant or award	+2,799	—	—
Jun 23, 2026	Kathleen M. Mazzarella Director	Grant or award	+2,799	—	—
Jun 23, 2026	James D. Hope Director	Grant or award	+2,799	—	—
Jun 23, 2026	Bhavani Amirthalingam Director	Grant or award	+2,799	—	—
Jun 23, 2026	Dennis G. Gipson Director	Grant or award	+2,799	—	—
Jun 23, 2026	Orvin T. Kimbrough Director	Grant or award	+2,799	—	—
Jun 23, 2026	Robert M. Buck Director	Grant or award	+2,799	—	—
Jun 22, 2026	Harper Carla D Officer (Senior VP, Human Resources)	Shares withheld for tax	−568	$47.25	$26,838
Apr 17, 2026	Bradbury Robyn L Officer (Chief Financial Officer)	Derivative conversion	+5,000	—	—

Peers

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Questions about Core & Main Inc.

Who is the CEO of Core & Main Inc.?

Stephen O. LeClair is Core & Main Inc.'s Chief Executive Officer.

How many directors are on Core & Main Inc.'s board?

Core & Main Inc.'s board has 12 directors: Bhavani Amirthalingam, Dennis G. Gipson, James D. Hope, James G. Castellano, Kathleen M. Mazzarella, M. Susan Hardwick, Margaret Newman, Mark R. Witkowski, Nathan K. Sleeper, Orvin T. Kimbrough and 2 others.

Are Core & Main Inc. insiders buying or selling shares?

Over the last 12 months, Core & Main Inc. insiders bought $195,083 of shares in 2 purchases and sold $262,718 of shares in 2 sales on the open market, as reported to the SEC on Forms 4 and 5.

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