CNM Core & Main, Inc. insider trading

Core & Main, Inc. (CNM) has 25 open-market insider trades by 10 insiders since 2022. Over the last six months insiders net bought $95K. The most active filer is Mark G. Whittenburg, CLO & Secretary.

25 total trades$11.0B total value2022-01-10 to 2026-07-06

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Convergence Signal:20 politician trades detected for CNM alongside insider activity

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Insider Roster (10)

CD&R Fund X Waterworks B1, L.P.

$3.3B

10% Owner

3 trades

CD&R Waterworks Holdings GP, Ltd.

$2.7B

10% Owner

2 trades

CD&R Waterworks Holdings, LLC

$2.2B

10% Owner

2 trades

CD&R Investment Associates X, Ltd.

$2.1B

10% Owner

2 trades

CD&R Waterworks Holdings, L.P.

Name	Title	Tier	Trades	Value	Last Trade
CD&R Fund X Waterworks B1, L.P.	10% Owner	—	3	$3.3B	2023-12-11
CD&R Waterworks Holdings GP, Ltd.	10% Owner	—	2	$2.7B	2024-01-10
CD&R Waterworks Holdings, LLC	10% Owner	—	2	$2.2B	2023-09-19
CD&R Investment Associates X, Ltd.	10% Owner	—	2	$2.1B	2024-01-25
CD&R Waterworks Holdings, L.P.	10% Owner	—	1	$636.9M	2023-04-14
Stephen O. LeClair	Chairman	—	2	$16.5M	2026-03-10
Mark G. Whittenburg	CLOSecretary	—	6	$5.1M	2026-03-11
Laura K. Schneider	CHRO	—	2	$2.4M	2025-06-03
Jeffrey D. Giles	VP	—	3	$1.5M	2026-03-12
James D. Hope	Dir	—	2	$195K	2026-07-06

Every insider who has filed at CNM (10)

Mark G. Whittenburg · 6 filings
CD&R Fund X Waterworks B1, L.P. · 3 filings
Jeffrey D. Giles · 3 filings
CD&R Waterworks Holdings GP, Ltd. · 2 filings
CD&R Waterworks Holdings, LLC · 2 filings
CD&R Investment Associates X, Ltd. · 2 filings
Stephen O. LeClair · 2 filings
Laura K. Schneider · 2 filings
James D. Hope · 2 filings
CD&R Waterworks Holdings, L.P. · 1 filing

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Recent Insider Trades

Insider	Title	Type	Value	Date
James D. Hope	Director	Buy	$95K	2026-07-06
Robyn L. Bradbury	CFO	Sell	$263K	2026-04-17
James D. Hope	Director	Buy	$100K	2026-04-07
Mark R. Witkowski	CEO	Sell	$6.4M	2025-08-18
Robyn L. Bradbury	CFO	Sell	$323K	2025-07-22
James G. Castellano	Director	Sell	$5.5M	2025-07-18

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