Core & Main
Supplies water, drainage, fire-protection and metering products through local branches.
$42.86
After-hours close−0.16 (−0.37%)
At close$43.02(−1.65%)
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Breakdown13F · Form 4
Institutions 113.62%Insiders 0.66%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 187.19M · Float 186.78M · 99.8% free float
Institutions13F, as of Jun 30, 2026
458 holders · 212.70M shares · 64 new positions · 225 increased · 179 reduced · 87 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 18.36M | 9.81% | −848.3K | Aug 7, 2026 |
| Capital World Investors | 11.47M | 6.13% | −98.3K | Aug 12, 2026 |
| FMR LLC | 8.96M | 4.79% | +3.56M | Aug 13, 2026 |
| Vanguard Capital Management LLC | 8.52M | 4.55% | +51.8K | Aug 13, 2026 |
| Vanguard Portfolio Management LLC | 8.25M | 4.41% | +432.2K | Aug 13, 2026 |
| First Trust Advisors LP | 6.25M | 3.34% | +118.0K | Aug 11, 2026 |
| Morgan Stanley | 6.04M | 3.23% | +604.6K | Aug 13, 2026 |
| State Street Corp | 5.91M | 3.16% | +128.3K | Aug 7, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 10.10% | 18.99M | 13G | Apr 7, 2026 ↗ |
| Capital World Investors | 6.20% | 11.57M | 13G | May 14, 2026 ↗ |
| Vanguard Capital Management | 5.26% | 9.91M | 13G | Apr 29, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Mark R. Witkowski | director, officer: Chief Executive Officer | 667.4K | 0.36% | Mar 13, 2026 |
| Mark G. Whittenburg | officer: General Counsel and Secretary | 235.8K | 0.13% | Mar 13, 2026 |
| John Weldon Stephens | officer: Chief Accounting Officer | 97.4K | 0.05% | Mar 13, 2026 |
| Stephen O. LeClair | director, officer: Executive Chair | 66.1K | 0.04% | Mar 11, 2026 |
| Bradford A. Cowles | officer: President | 25.5K | 0.01% | Mar 13, 2026 |
| John R. Schaller | officer: Executive Vice President | 19.7K | 0.01% | May 30, 2025 |
| Bhavani Amirthalingam | director | 18.0K | 0.01% | Jun 24, 2026 |
| Orvin T. Kimbrough | director | 16.8K | 0.01% | Jun 24, 2026 |
| Dennis G. Gipson | director | 16.8K | 0.01% | Jun 24, 2026 |
| Kathleen M. Mazzarella | director | 16.8K | 0.01% | Jun 24, 2026 |
1 person has not refiled in the last 18 months (798.5K shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Jul 6, 2026 | James D. Hopedirector | Purchase | 2,067 | $46.01 | 11,805 |
| Apr 17, 2026 | Robyn L. Bradburyofficer: Chief Financial Officer | Sale · 2 lots | 5,000 | $52.54 | 12,500 |
| Apr 7, 2026 | James D. Hopedirector | Purchase | 1,972 | $50.70 | 6,939 |
CongressHouse and Senate disclosures
| Member | Type | Amount | Owner | Traded | Disclosed |
|---|---|---|---|---|---|
| Rep. Michael McCaul · TX10 | Sale | $1,001 – $15,000 | Spouse | Jun 18, 2026 | Jul 13, 2026 ↗ |
| Rep. April Delaney · MD06 | Sale | $1,001 – $15,000 | Jun 12, 2026 | Jul 8, 2026 ↗ |