Core & Main (NYSE: CNM) insider transactions

In the twelve months to 10 November 2026, executives and directors of Core & Main reported 2 open-market sales of 5,000 shares ($262,718) and 2 open-market purchases of 4,039 shares ($195,083), by 2 people, according to the Form 4 filings they submitted to the SEC.

Latest transactions

The 20 most recent transactions in Core & Main shares reported on Form 4
Date	Insider	Role	Transaction	Shares	Price	Held after	Filing
16 October 2026	Witkowski Mark R	Chief Executive Officer	Gift	−19,596	—	31,523	Form 4
4 August 2026	Harper Carla D	Senior VP, Human Resources	Shares withheld for tax	−242	$46.32	13,064	Form 4
22 July 2026	Huebert Michael G.	President	Shares withheld for tax	−1,301	$43.75	24,036	Form 4
6 July 2026	Hope James D	Director	Open-market purchase	+2,067	$46.01	11,805	Form 4
23 June 2026	Buck Robert M	Director	Grant or award	+2,799	—	15,849	Form 4
23 June 2026	Kimbrough Orvin T	Director	Grant or award	+2,799	—	16,757	Form 4
23 June 2026	Gipson Dennis G	Director	Grant or award	+2,799	—	16,757	Form 4
23 June 2026	Amirthalingam Bhavani	Director	Grant or award	+2,799	—	17,955	Form 4
23 June 2026	Hope James D	Director	Grant or award	+2,799	—	9,738	Form 4
23 June 2026	Mazzarella Kathleen M	Director	Grant or award	+2,799	—	16,757	Form 4
23 June 2026	Hardwick M Susan	Director	Grant or award	+2,799	—	3,379	Form 4
23 June 2026	Newman Margaret	Director	Grant or award	+2,799	—	16,757	Form 4
23 June 2026	Castellano James G	Director	Grant or award	+2,799	—	7,437	Form 4
22 June 2026	Harper Carla D	Senior VP, Human Resources	Shares withheld for tax	−568	$47.25	13,306	Form 4
17 April 2026	Bradbury Robyn L	Chief Financial Officer	Conversion, 10b5-1 plan	+5,000	—	17,500	Form 4
17 April 2026	Bradbury Robyn L	Chief Financial Officer	Open-market sale, 10b5-1 plan	−1,647	$51.94	15,853	Form 4
17 April 2026	Bradbury Robyn L	Chief Financial Officer	Open-market sale, 10b5-1 plan	−3,353	$52.84	12,500	Form 4
7 April 2026	Hope James D	Director	Open-market purchase	+1,972	$50.70	6,939	Form 4
1 April 2026	Hardwick M Susan	Director	Grant or award	+580	—	580	Form 4
12 March 2026	Harper Carla D	Senior VP, Human Resources	Grant or award	+2,463	—	13,874	Form 4

Names appear as in the filing, surname first. A dash in the price column means the filing reports none, as in grants and gifts.

How to read the table

Only open-market purchases and sales are trades the insider chose to make at the market price, and they are the ones counted in the summary above. Grants, option exercises and shares withheld for tax come from pay plans. A sale marked as a 10b5-1 plan was scheduled in advance under a written plan.

Where each row comes from

From the Form 4 that each executive, director or large shareholder must file with the SEC within two business days of a transaction, read up to 10 November 2026. Each row links to its filing on EDGAR. Only transactions in shares are listed, not derivatives, and amended filings are left out. The accounts of the company are on the Core & Main page; the method, in data sources.

Information prepared from the Form 4 filings submitted to the SEC, for information purposes only. It is not financial advice or a recommendation to buy or sell. Updated on 12 November 2026.