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Core & Main, Inc. (CNM) XNYS WHOLESALE-DURABLE GOODS, NEC Net insider buying (90d)
Latest CNM Insider Trades
About Core & Main, Inc. (CNM) Core & Main is a leading specialty distributor with a focus on water, wastewater, storm drainage, and fire protection products. The company provides solutions to municipalities, private water companies, and professional contractors across municipal, nonresidential, and residential end markets. The company's specialty products and services are used in the maintenance, repair, replacement, and construction of water and fire protection infrastructure.
Headquarters ST. LOUIS, MO
Employees 5,600
Listed 2021
Exchange XNYS https://www.coreandmain.com SEC filings for CNM on EDGAR
90-Day SEC Filing Activity Form 4 transaction type Transactions Shares Total value Open-market purchase 1 2,067 $95K Grant or award 9 25,191 Tax withholding / forfeiture 3 2,111
CNM Insider Transactions (Form 4) 53 49 Form 4 filings on record, the earliest from Oct 10, 2024, newest first. Filing history page 1 of 2.
Date Insider Transaction Security Shares Price Value Aug 4, 2026 CH Carla D. Harper - Officer Tax withholding / forfeiture Class A Common Stock 242
Recent CNM Form 8-K Filings 5
Recent CNM Form 144 Notices of Proposed Sale 3 A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
Filed Filer Relationship Shares Market value Notice Jun 30, 2026 - - - - View on EDGAR May 29, 2026 - - -
CNM Insider Trading - FAQ
What is the latest insider trade for CNM? Core & Main, Inc. (CNM) had 13 insider filings in the last 90 days, with the most recent on 2026-08-05. The full record for CNM runs to 49 Form 4 filings, the earliest from 2024-10-10. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying CNM stock? 1 insider purchase of CNM was filed in the last 90 days, totaling $95K.
How many insiders are selling CNM stock? No insider sales of CNM were filed in the last 90 days. 17 sales are on record for this company.
Where can I see CNM SEC filings (Form 4, 10-K, 10-Q, 8-K)? This page tracks CNM Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow CNM insider buys? Create a free InsiderAlpha account and press Watch on this page to add CNM to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Industrials Companies with Insider Activity Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
What is SEC Form 4? The filing insiders must submit within two business days of a trade, and how to read its transaction codes. Track CNM insider activity as it files Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
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$177K
Market cap $8.05B
P/E ratio 18.20
Dividend yield -
Average volume 2.32M
52 week high $67.18
52 week low $41.88
Today's high $44.01
Today's low $42.53
Open $43.91
Volume 1.66M
Previous close $43.74
Shares outstanding 187.19M Market cap
$8.05B
5,600 employees
CNM Insider Sentiment - Last 90 Days Share of open-market insider dollar volume that was buying versus selling, from SEC Form 4 filings.
100% Buying 0% Selling
1 insider purchase totaling $95K against 0 sales totaling $0.
Most-Active CNM Insiders - Last 90 Days 10 Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
Jul 22, 2026 MH Michael G. Huebert - Officer Tax withholding / forfeiture Class A Common Stock 1,301 $43.75 $57K
Jul 6, 2026 JH James D. Hope - Director Open-market purchase Class A Common Stock 2,067 $46.01 $95K
Jun 23, 2026 MN Margaret Newman - Director Grant or award Class A Common Stock 2,799 $0.00 -
Jun 23, 2026 MH M. Susan Hardwick - Director Grant or award Class A Common Stock 2,799 $0.00 -
Jun 23, 2026 JH James D. Hope - Director Grant or award Class A Common Stock 2,799 $0.00 -
Jun 23, 2026 DG Dennis G. Gipson - Director Grant or award Class A Common Stock 2,799 $0.00 -
Jun 23, 2026 RB Robert M. Buck - Director Grant or award Class A Common Stock 2,799 $0.00 -
Jun 22, 2026 CH Carla D. Harper - Officer Tax withholding / forfeiture Class A Common Stock 568 $47.25 $27K
Apr 17, 2026 RB Robyn L. Bradbury - Officer Open-market sale Class A Common Stock 1,647 $51.94 $86K
Apr 17, 2026 RB Robyn L. Bradbury - Officer Open-market sale Class A Common Stock 3,353 $52.84 $177K
Apr 17, 2026 RB Robyn L. Bradbury - Officer Other Class B Common Stock and Limited Partnership Interests 5,000 $0.00 -
Apr 17, 2026 RB Robyn L. Bradbury - Officer Other Class B Common Stock and Limited Partnership Interests 5,000 $0.00 -
Apr 17, 2026 RB Robyn L. Bradbury - Officer Other Class B Common Stock and Limited Partnership Interests 5,000 $0.00 -
Apr 7, 2026 JH James D. Hope - Director Open-market purchase Class A Common Stock 1,972 $50.70 $100K
Mar 12, 2026 JG Jeffrey D. Giles - Officer Grant or award Class A Common Stock 3,021 $0.00 -
Mar 12, 2026 JG Jeffrey D. Giles - Officer Grant or award Options (Rights to Buy) 21,585 $0.00 -
Mar 11, 2026 MW Mark G. Whittenburg - Officer Tax withholding / forfeiture Class A Common Stock 331 $49.16 $16K
Mar 12, 2026 RB Robyn L. Bradbury - Officer Grant or award Options (Rights to Buy) 34,488 $0.00 -
Mar 11, 2026 RB Robyn L. Bradbury - Officer Tax withholding / forfeiture Class A Common Stock 404 $49.16 $20K
Mar 12, 2026 RB Robyn L. Bradbury - Officer Grant or award Class A Common Stock 4,824 $0.00 -
Mar 11, 2026 MW Mark R. Witkowski - Officer Tax withholding / forfeiture Class A Common Stock 1,685 $49.16 $83K
Mar 12, 2026 MW Mark R. Witkowski - Officer Grant or award Class A Common Stock 18,372 $0.00 -
Mar 12, 2026 MW Mark R. Witkowski - Officer Grant or award Options (Rights to Buy) 131,382 $0.00 -
Mar 12, 2026 BC Bradford A. Cowles - Officer Grant or award Options (Rights to Buy) 50,676 $0.00 -
Mar 11, 2026 BC Bradford A. Cowles - Officer Tax withholding / forfeiture Class A Common Stock 607 $49.16 $30K
Mar 11, 2026 JS John Weldon Stephens - Officer Tax withholding / forfeiture Class A Common Stock 107 $49.16 $5K
Mar 11, 2026 MH Michael G. Huebert - Officer Tax withholding / forfeiture Class A Common Stock 447 $49.16 $22K
Mar 12, 2026 MH Michael G. Huebert - Officer Grant or award Options (Rights to Buy) 37,539 $0.00 -
Mar 11, 2026 CH Carla D. Harper - Officer Tax withholding / forfeiture Class A Common Stock 89 $49.16 $4K
Mar 12, 2026 CH Carla D. Harper - Officer Grant or award Class A Common Stock 2,463 $0.00 -
Mar 12, 2026 CH Carla D. Harper - Officer Grant or award Options (Rights to Buy) 17,598 $0.00 -
Mar 9, 2026 MW Mark G. Whittenburg - Officer Tax withholding / forfeiture Class A Common Stock 278 $49.96 $14K
Mar 10, 2026 MW Mark G. Whittenburg - Officer Tax withholding / forfeiture Class A Common Stock 557 $49.38 $28K
Mar 9, 2026 CH Carla D. Harper - Officer Tax withholding / forfeiture Class A Common Stock 77 $49.96 $4K
Mar 10, 2026 CH Carla D. Harper - Officer Tax withholding / forfeiture Class A Common Stock 189 $49.38 $9K
Mar 9, 2026 JS John Weldon Stephens - Officer Tax withholding / forfeiture Class A Common Stock 94 $49.96 $5K
Mar 10, 2026 JS John Weldon Stephens - Officer Tax withholding / forfeiture Class A Common Stock 198 $49.38 $10K
Mar 9, 2026 MH Michael G. Huebert - Officer Tax withholding / forfeiture Class A Common Stock 350 $49.96 $17K
Mar 9, 2026 BC Bradford A. Cowles - Officer Tax withholding / forfeiture Class A Common Stock 435 $49.96 $22K
Mar 10, 2026 BC Bradford A. Cowles - Officer Tax withholding / forfeiture Class A Common Stock 741 $49.38 $37K
Mar 9, 2026 MW Mark R. Witkowski - Officer Tax withholding / forfeiture Class A Common Stock 478 $49.96 $24K
Mar 10, 2026 MW Mark R. Witkowski - Officer Tax withholding / forfeiture Class A Common Stock 937 $49.38 $46K
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