CNM

CNM · Core & Main Inc. Class A Common Stock

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AI Market Commentary

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Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.

October 5, 2026

CNM Compared to KMT; Mixed Views on Value. CNM is being compared to KMT in a recent Yahoo article that asks which stock offers better value. Another piece lists two strengths of CNM and one reason to remain cautious. The comparison highlights that while CNM has some attractive fundamentals, there are also concerns that could temper enthusiasm.

this person other insiders at CNM

Insiders & Stakes

Stephen O. LeClair
Chief Executive Officer
66,136
Shares held
Mark R. Witkowski
Chief Financial Officer
51,119
Shares held
Bradford A. Cowles
President, Fire Protection
25,491
Shares held
Michael G. Huebert
Senior Vice President
24,036
Shares held
Schaller John R
President, Waterworks
19,689
Shares held
Bhavani Amirthalingam
Director
17,955
Shares held
John Weldon Stephens
VP, Corp. Controller
17,374
Shares held
Kathleen M. Mazzarella
Director
16,757
Shares held
Margaret Newman
Director
16,757
Shares held
Dennis G. Gipson
Director
16,757
Shares held
Orvin T. Kimbrough
Director
16,757
Shares held
Robert M. Buck
Director
15,849
Shares held
Carla D. Harper
Senior VP, Human Resources
13,064
Shares held
Schneider Laura K
Chief Human Resources Officer
12,873
Shares held
Robyn L. Bradbury
Chief Financial Officer
12,500
Shares held
James D. Hope
See Remarks
11,805
Shares held
Jeffrey D. Giles
VP, Corporate Department
9,681
Shares held
Mark G. Whittenburg
General Counsel and Secretary
8,525
Shares held
James G. Castellano
Director
7,437
Shares held
M. Susan Hardwick
EVP, Chief Financial Officer
3,379
Shares held
Nathan K. Sleeper
Director
0
Shares held
CD&R Investment Associates X, Ltd.
10% Owner
0
Shares held

Transaction History

Carla D. Harper▼ Sell$11K
Michael G. Huebert▼ Sell$57K
James D. Hope▲ Buy$95K
James G. Castellano▲ Buy$0
Margaret Newman▲ Buy$0
Orvin T. Kimbrough▲ Buy$0
M. Susan Hardwick▲ Buy$0
Kathleen M. Mazzarella▲ Buy$0
James D. Hope▲ Buy$0
Bhavani Amirthalingam▲ Buy$0
Dennis G. Gipson▲ Buy$0
Robert M. Buck▲ Buy$0
Carla D. Harper▼ Sell$27K
Robyn L. Bradbury▼ Sell$0
Robyn L. Bradbury▼ Sell$86K
Robyn L. Bradbury▼ Sell$177K
James D. Hope▲ Buy$100K
M. Susan Hardwick▲ Buy$0
Jeffrey D. Giles▲ Buy$0
Robyn L. Bradbury▲ Buy$0
Mark R. Witkowski▲ Buy$0
Bradford A. Cowles▲ Buy$0
Michael G. Huebert▲ Buy$0
Carla D. Harper▲ Buy$0
John Weldon Stephens▲ Buy$0
Mark G. Whittenburg▼ Sell$16K
Robyn L. Bradbury▼ Sell$20K
Mark R. Witkowski▼ Sell$83K
Bradford A. Cowles▼ Sell$30K
Carla D. Harper▼ Sell$4K
John Weldon Stephens▼ Sell$5K
Michael G. Huebert▼ Sell$22K
Mark G. Whittenburg▼ Sell$28K
Carla D. Harper▼ Sell$9K
John Weldon Stephens▼ Sell$10K
Bradford A. Cowles▼ Sell$37K
Stephen O. LeClair▼ Sell$152K
Robyn L. Bradbury▼ Sell$10K
Mark R. Witkowski▼ Sell$46K
Mark G. Whittenburg▼ Sell$14K
Carla D. Harper▼ Sell$4K
John Weldon Stephens▼ Sell$5K
Michael G. Huebert▼ Sell$17K
Bradford A. Cowles▼ Sell$22K
Stephen O. LeClair▼ Sell$76K
Robyn L. Bradbury▼ Sell$13K
Mark R. Witkowski▼ Sell$24K
Jeffrey D. Giles▲ Buy$0
John Weldon Stephens▲ Buy$265K
Carla D. Harper▲ Buy$0
Mark R. Witkowski▼ Sell$0
Mark R. Witkowski▼ Sell$6.4M
Michael G. Huebert▼ Sell$87K
Robyn L. Bradbury▼ Sell$0
Robyn L. Bradbury▼ Sell$323K
James G. Castellano▼ Sell$0
James G. Castellano▼ Sell$2.7M
Orvin T. Kimbrough▼ Sell$0
Orvin T. Kimbrough▼ Sell$0
Orvin T. Kimbrough▼ Sell$0
Orvin T. Kimbrough▼ Sell$1.5M
Mark R. Witkowski▼ Sell$0
Mark R. Witkowski▼ Sell$4.4M
Mark R. Witkowski▼ Sell$1.7M
Stephen O. LeClair▲ Buy$936K
Stephen O. LeClair▼ Sell$2.8M
Stephen O. LeClair▲ Buy$1.7M
Stephen O. LeClair▼ Sell$5.0M
Robyn L. Bradbury▼ Sell$0
Robyn L. Bradbury▼ Sell$0
Robyn L. Bradbury▼ Sell$0
Robyn L. Bradbury▼ Sell$801K
Robyn L. Bradbury▼ Sell$691K
Robyn L. Bradbury▼ Sell$20K
James G. Castellano▲ Buy$0
Margaret Newman▲ Buy$0
Dennis G. Gipson▲ Buy$0
Orvin T. Kimbrough▲ Buy$0
Robert M. Buck▲ Buy$0
Bhavani Amirthalingam▲ Buy$0
James D. Hope▲ Buy$0
Kathleen M. Mazzarella▲ Buy$0
Mark G. Whittenburg▼ Sell$0
Mark G. Whittenburg▼ Sell$2.9M
Mark G. Whittenburg▼ Sell$0
Mark G. Whittenburg▼ Sell$54K
Schneider Laura K▼ Sell$0
Schneider Laura K▼ Sell$2.6M
Schaller John R▲ Buy$491K
Schaller John R▼ Sell$539K
John Weldon Stephens▼ Sell$0
John Weldon Stephens▼ Sell$1.7M
John Weldon Stephens▼ Sell$0
John Weldon Stephens▼ Sell$542K
James G. Castellano▼ Sell$0
James G. Castellano▼ Sell$0
John Weldon Stephens▼ Sell$0
John Weldon Stephens▼ Sell$2.1M
Robyn L. Bradbury▲ Buy$0
Mark R. Witkowski▲ Buy$0
Mark G. Whittenburg▲ Buy$0
Jeffrey D. Giles▲ Buy$0
Schneider Laura K▲ Buy$0
Mark R. Witkowski▲ Buy$0
Bradford A. Cowles▲ Buy$0
Schaller John R▲ Buy$0
John Weldon Stephens▲ Buy$0
Michael G. Huebert▲ Buy$0
Schaller John R▲ Buy$401K
Schaller John R▼ Sell$868K
Schaller John R▼ Sell$46K
Jeffrey D. Giles▼ Sell$20K
John Weldon Stephens▼ Sell$9K
Mark R. Witkowski▼ Sell$43K
Mark G. Whittenburg▼ Sell$24K
Stephen O. LeClair▼ Sell$228K
Schneider Laura K▼ Sell$20K
Bradford A. Cowles▼ Sell$34K
John Weldon Stephens▼ Sell$9K
Schneider Laura K▼ Sell$20K
Bradford A. Cowles▼ Sell$38K
Jeffrey D. Giles▼ Sell$22K
Mark G. Whittenburg▼ Sell$28K
Mark R. Witkowski▼ Sell$47K
Schaller John R▼ Sell$46K
Schaller John R▲ Buy$484K
Schaller John R▼ Sell$1.0M
Stephen O. LeClair▼ Sell$171K
John Weldon Stephens▼ Sell$4K
Schneider Laura K▼ Sell$10K
Bradford A. Cowles▼ Sell$21K
Jeffrey D. Giles▼ Sell$11K
Mark G. Whittenburg▼ Sell$13K
Mark R. Witkowski▼ Sell$26K
Schaller John R▼ Sell$22K
Michael G. Huebert▼ Sell$17K
Stephen O. LeClair▼ Sell$88K
Bradford A. Cowles▼ Sell$0
Bradford A. Cowles▼ Sell$1.4M
Mark G. Whittenburg▼ Sell$2.6M
Mark G. Whittenburg▼ Sell$0
Mark G. Whittenburg▼ Sell$109K
Mark G. Whittenburg▼ Sell$0
Bradford A. Cowles▼ Sell$0
Bradford A. Cowles▼ Sell$676K
Mark G. Whittenburg▼ Sell$0
Mark G. Whittenburg▼ Sell$2.5M
Schaller John R▲ Buy$803K
Schaller John R▲ Buy$484K
Schaller John R▼ Sell$1.1M
Bradford A. Cowles▼ Sell$0
Schaller John R▼ Sell$1.9M
Schaller John R▼ Sell$31K
Bradford A. Cowles▼ Sell$631K
Jeffrey D. Giles▼ Sell$0
Jeffrey D. Giles▼ Sell$0
Margaret Newman▼ Sell$0
Stephen O. LeClair▼ Sell$11.0M
Bradford A. Cowles▼ Sell$2.8M
Stephen O. LeClair▼ Sell$0
Margaret Newman▼ Sell$0
Margaret Newman▼ Sell$0
Margaret Newman▼ Sell$829K
Jeffrey D. Giles▼ Sell$0
Jeffrey D. Giles▼ Sell$1.4M
Bradford A. Cowles▼ Sell$0
Michael G. Huebert▲ Buy$0
Michael G. Huebert▲ Buy$0
Dennis G. Gipson▼ Sell$0
Dennis G. Gipson▼ Sell$1.3M
Dennis G. Gipson▼ Sell$0
Dennis G. Gipson▼ Sell$0
James G. Castellano▼ Sell$653K
James G. Castellano▼ Sell$0
James G. Castellano▼ Sell$0
James G. Castellano▼ Sell$624K
James G. Castellano▼ Sell$10K
James G. Castellano▼ Sell$0
Bhavani Amirthalingam▲ Buy$0
James D. Hope▲ Buy$0
Kathleen M. Mazzarella▲ Buy$0
Robert M. Buck▲ Buy$0
Margaret Newman▲ Buy$0
James G. Castellano▲ Buy$0
Orvin T. Kimbrough▲ Buy$0
Dennis G. Gipson▲ Buy$0
Mark R. Witkowski▼ Sell$3.0M
Mark R. Witkowski▼ Sell$0
James D. Hope▲ Buy$0
John Weldon Stephens▼ Sell$0
John Weldon Stephens▼ Sell$524K
Mark G. Whittenburg▼ Sell$2.7M
John Weldon Stephens▼ Sell$0
John Weldon Stephens▼ Sell$298K
Mark G. Whittenburg▼ Sell$0
Mark R. Witkowski▼ Sell$2.9M
Mark R. Witkowski▼ Sell$0
Mark G. Whittenburg▼ Sell$0
Mark G. Whittenburg▼ Sell$0
John Weldon Stephens▼ Sell$869K

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