SEC Form 4
Core & Main, Inc. (CNM) insider trading
In the 12 months to Oct 24, 2026, one CNM insider reported open-market sales of $262.7K across 1 filing; one director bought $195.1K.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $262.7K
- 1 filing · 1 insider
- Open-market purchases
- $195.1K
- 2 filings · James D. Hope, Director
- Pre-arranged sales (10b5-1)
- 1 of 1
- All $262.7K sold was pre-arranged
Who traded CNM, and when
- Purchase
- Sale
- Sale, pre-arranged (10b5-1)
CNM daily close from Oct 24, 2025 to Oct 23, 2026, between $40.35 and $59.09, last $41.97. 1 sale and 2 purchase filings by 2 insiders, marked at their filing dates. Robyn L. Bradbury, Chief Financial Officer: sold $262.7K across 1 filing, first filed Apr 21, 2026, last Apr 21, 2026. James D. Hope, Director: bought $195.1K across 2 filings, first filed Apr 9, 2026, last Jul 8, 2026.
Largest mark · tap a row for others
Robyn L. Bradbury · Chief Financial Officer
Sale $262,724
5,000 shares at $52.54 avg
Filed Apr 21, 2026 · traded Apr 17
Pre-arranged (10b5-1) · close on filing date $49.73
Robyn L. Bradbury · Chief Financial Officer
Chief Financial Officer
$262.7K soldJames D. Hope · Director
Director
$195.1K boughtHas Core & Main, Inc.'s CEO sold stock?
No. Mark R. Witkowski (CEO) made no open-market sales filed as CEO in the last 12 months.
Open-market trades
3 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Robyn L. Bradbury | Chief Financial Officer | $262.7K | — | 1 | 100% of sales | |
| James D. Hope | Director | — | $195.1K | 2 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | James D. Hope Director | Purchase | 2,067 | $46.01 | $95.1K | 11,805 | |
traded | Robyn L. Bradbury Chief Financial Officer | SalePre-arranged (10b5-1) | 5,000 | $52.54 | $262.7K | 12,500 | |
traded | James D. Hope Director | Purchase | 1,972 | $50.70 | $100.0K | 6,939 |
GET /stocks/filings/vX/form-4?tickers=CNM&filing_date.gte=2025-10-24&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"CNM"
],
"issuer_cik": "0001856525",
"owner_cik": "0001399884",
"accession_number": "0001856525-26-000083",
"form_type": "4",
"filing_date": "2026-07-08",
"period_of_report": "2026-07-06",
"issuer_name": "Core & Main, Inc.",
"issuer_trading_symbol": "CNM",
"owner_name": "Hope James D",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Class A Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-07-06",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 2067,
"transaction_price_per_share": 46.014,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 11805,
"transaction_value": 95110.93800000001,
"not_subject_to_section_16": false,
"direct_or_indirect": "D"
},
{
"tickers": [
"CNM"
],
"issuer_cik": "0001856525",
"owner_cik": "0002060011",
"accession_number": "0002060011-26-000002",
"form_type": "4",
"filing_date": "2026-04-21",
"period_of_report": "2026-04-17",
"issuer_name": "Core & Main, Inc.",
"issuer_trading_symbol": "CNM",
"owner_name": "Bradbury Robyn L",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chief Financial Officer",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Class A Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-04-17",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 1647,
"transaction_price_per_share": 51.9404,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 15853,
"transaction_value": 85545.8388,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F3",
"description": "The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on January 16, 2026."
},
{
"id": "F4",
"description": "The price reported represents the weighted average price of shares of Class A common stock sold in multiple transactions at prices ranging from $51.4900 to $52.4700 per share. The reporting person will provide to the Issuer, or the Securities and Exchange Commission staff, upon request, information regarding the number of shares sold at each price within the range."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 45 records
- Tax withholding25 records
- Grants and awards18 records
- Gifts1 record
- Other1 record
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for CNM every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.