Core & Main, Inc. (CNM) Ownership
CNM ownership summary
as of October 18, 2026- Institutions
- 113.0% of shares outstanding
- Insiders
- 0.49% of shares outstanding
- Shares outstanding
- 184.4M
- Float
- 183.8M shares available to trade
- Short interest
- 6.78% 12.5M shares short
- Days to cover
- 4.33 short interest up 10.8% vs prior month
- Institutions 113.01%
- Insiders 0.49%
CNM top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 9.95% | 18.4M | $770.8M | −848,336 (−4.4%) | June 30, 2026 |
| 2 | Capital World Investors | 6.22% | 11.5M | $481.8M | −98,339 (−0.8%) | June 30, 2026 |
| 3 | FMR Inc | 4.86% | 9.0M | $376.2M | +3.6M (+65.8%) | June 30, 2026 |
| 4 | Vanguard Capital Management, LLC | 4.62% | 8.5M | $357.7M | +51,773 (+0.6%) | June 30, 2026 |
| 5 | Vanguard Portfolio Management, LLC | 4.47% | 8.3M | $346.5M | +432,182 (+5.5%) | June 30, 2026 |
| 6 | First Trust Advisors L.P. | 3.39% | 6.2M | $262.4M | +118,015 (+1.9%) | June 30, 2026 |
| 7 | Morgan Stanley - Brokerage Accounts | 3.27% | 6.0M | $253.6M | +604,561 (+11.1%) | June 30, 2026 |
| 8 | State Street Corp | 3.20% | 5.9M | $248.1M | +128,276 (+2.2%) | June 30, 2026 |
| 9 | Select Equity Group LP | 3.17% | 5.8M | $245.2M | −1.4M (−19.5%) | June 30, 2026 |
| 10 | Royal London Asset Management Ltd | 2.98% | 5.5M | $230.5M | −264,028 (−4.6%) | June 30, 2026 |
| 11 | Pictet Asset Manangement SA | 2.69% | 5.0M | $208.4M | −1.6M (−23.8%) | June 30, 2026 |
| 12 | D. E. Shaw & Co LP | 2.48% | 4.6M | $192.2M | +734,976 (+19.1%) | June 30, 2026 |
| 13 | Impax Asset Management Group PLC | 2.28% | 4.2M | $176.5M | +1.4M (+47.4%) | June 30, 2026 |
| 14 | Amundi | 2.09% | 3.8M | $161.5M | +795,962 (+26.1%) | June 30, 2026 |
| 15 | Geode Capital Management, LLC | 1.94% | 3.6M | $150.2M | −174,191 (−4.6%) | June 30, 2026 |
| 16 | Jupiter Topco LLC | 1.85% | 3.4M | $143.2M | +3.4M (0.0%) | June 30, 2026 |
| 17 | HHG PLC | 1.83% | 3.4M | $141.8M | −1.2M (−27.0%) | March 31, 2026 |
| 18 | Point72 Asset Management, L.P. | 1.67% | 3.1M | $129.3M | +237,815 (+8.4%) | June 30, 2026 |
| 19 | Dimensional Fund Advisors, Inc. | 1.52% | 2.8M | $117.8M | +144,286 (+5.4%) | June 30, 2026 |
| 20 | Kbc Group NV | 1.50% | 2.8M | $116.3M | +32,521 (+1.2%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 13 holders added 11.6M shares and 7 cut 5.6M.
CNM top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Core S&P Mid-Cap ETF | 3.62% | 6.7M | $280.0M | −2,376 (−0.0%) | September 30, 2026 |
| 2 | Vanguard MStar Total Stk Mkt Idx Invest | 3.25% | 6.0M | $251.5M | −6,815 (−0.1%) | August 31, 2026 |
| 3 | First Trust RBA Amer Indl RenaisTM ETF | 2.97% | 5.5M | $229.7M | +3,158 (+0.1%) | September 30, 2026 |
| 4 | Vanguard Small Cap Index | 2.35% | 4.3M | $181.8M | +7,104 (+0.2%) | August 31, 2026 |
| 5 | American Funds SMALLCAP World A | 2.24% | 4.1M | $173.5M | +534,938 (+14.9%) | June 30, 2026 |
| 6 | Pictet-Water I EUR | 1.91% | 3.5M | $148.2M | −1.4M (−28.0%) | June 30, 2026 |
| 7 | Royal London Sustainable World A Inc | 1.42% | 2.6M | $109.7M | +105,277 (+4.2%) | June 30, 2026 |
| 8 | Nordea 1 - Global Climate & Envir BI EUR | 1.37% | 2.5M | $106.0M | +253,940 (+11.2%) | August 31, 2026 |
| 9 | Vanguard MStar Small Cap Growth Indx Inv | 1.35% | 2.5M | $104.3M | −18,945 (−0.8%) | August 31, 2026 |
| 10 | Fidelity Low-Priced Stock | 1.32% | 2.4M | $102.2M | +109,500 (+4.7%) | July 31, 2026 |
| 11 | Findlay Park American I USD Dist | 1.30% | 2.4M | $100.6M | — | July 31, 2026 |
| 12 | BNP Paribas Aqua C C | 1.22% | 2.2M | $94.2M | −319 (−0.0%) | August 31, 2026 |
| 13 | BNP Paribas Aqua I | 1.21% | 2.2M | $94.0M | −201 (−0.0%) | August 31, 2026 |
| 14 | Capital Group Global Growth Equity ETF | 1.07% | 2.0M | $83.0M | +4,698 (+0.2%) | September 30, 2026 |
| 15 | Strategic Advisers Fidelity US TtlStk | 0.96% | 1.8M | $74.2M | +43,200 (+2.5%) | August 31, 2026 |
| 16 | MS INVF US Advantage I | 0.94% | 1.7M | $72.7M | — | June 30, 2026 |
| 17 | American Funds Cptl Wld Gr&Inc A | 0.93% | 1.7M | $72.2M | −563,800 (−24.7%) | June 30, 2026 |
| 18 | Janus Henderson Contrarian D | 0.92% | 1.7M | $71.6M | — | August 31, 2026 |
| 19 | Schroder ISF US Large Cap A Dis $ AV | 0.86% | 1.6M | $66.2M | +1.6M (0.0%) | August 31, 2026 |
| 20 | American Funds New Economy A | 0.80% | 1.5M | $62.1M | — | June 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
CNM insider transactions
latest 20| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-17 | Robyn L Bradbury | Sell | $52.54 | 5,000 | $262,700 |
| 2026-04-07 | James D Hope | Buy | $50.70 | 1,972 | $99,980 |
| 2025-10-31 | Lisa C. McClain | Sell | $52.10 | — | — |
| 2025-10-30 | Lisa C. McClain | Sell | $52.37 | — | — |
| 2025-10-30 | Lisa C. McClain | Buy | $52.37 | — | — |
| 2025-09-22 | Michael T. McCaul | Buy | $50.73 | — | — |
| 2025-09-11 | Lisa C. McClain | Buy | $49.52 | — | — |
| 2025-08-21 | Michael T. McCaul | Sell | $63.95 | — | — |
| 2025-08-18 | Mark R Witkowski | Sell | $64.08 | 100,000 | $6.4M |
| 2025-08-11 | April McClain Delaney | Sell | $63.70 | — | — |
| 2025-07-22 | Robyn L Bradbury | Sell | $64.51 | 5,000 | $322,550 |
| 2025-07-18 | Orvin T Kimbrough | Sell | $61.77 | 23,962 | $1.5M |
| 2025-07-18 | James G Castellano | Sell | $61.98 | 43,994 | $2.7M |
| 2025-07-17 | Mark R Witkowski | Sell | $61.26 | 100,000 | $6.1M |
| 2025-07-07 | Stephen O Leclair | Sell | $61.91 | 44,972 | $2.8M |
| 2025-07-03 | Stephen O Leclair | Sell | $62.27 | 80,028 | $5.0M |
| 2025-07-01 | Robyn L Bradbury | Sell | $60.49 | 25,000 | $1.5M |
| 2025-06-17 | Lisa C. McClain | Sell | $55.61 | — | — |
| 2025-06-11 | Lisa C. McClain | Buy | $57.46 | — | — |
| 2025-06-09 | Mark G Whittenburg | Sell | $60.03 | 49,100 | $2.9M |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
CNM shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns CNM
Institutional investors own 113.0% of Core & Main's shares and insiders 0.49%. The largest holder is BlackRock Inc with 9.95% of the shares (18.4M), as of June 30, 2026. Among the top 20 institutions, 13 added shares and 7 reduced their stake in the latest filings. Short interest is 6.78% of the float, or 4.33 days of average trading volume. The share count rose 23.6% since 2019.
Related: CNM analyst forecast, CNM key metrics. See the CNM stock overview for the latest quote and news.
CNM ownership FAQ
Who owns the most Core & Main stock?
The largest shareholders of Core & Main are BlackRock Inc (9.95%), Capital World Investors (6.22%), FMR Inc (4.86%), Vanguard Capital Management, LLC (4.62%), Vanguard Portfolio Management, LLC (4.47%).
What percentage of Core & Main is owned by institutions?
Institutions hold 113.0% of Core & Main's shares outstanding; insiders hold 0.49%.
Which funds own Core & Main?
The largest fund holders of Core & Main are iShares Core S&P Mid-Cap ETF (3.62%), Vanguard MStar Total Stk Mkt Idx Invest (3.25%), First Trust RBA Amer Indl RenaisTM ETF (2.97%), Vanguard Small Cap Index (2.35%), American Funds SMALLCAP World A (2.24%).
What is Core & Main's short interest?
12.5M shares of Core & Main were sold short, 6.78% of the float; at the average daily volume it would take 4.33 days to cover.
Are insiders buying or selling Core & Main?
Of the latest 20 reported insider transactions in Core & Main (since June 9, 2025), 5 were purchases and 15 were sales.
How many shares of Core & Main are outstanding?
Core & Main has 184.4M shares outstanding, of which 183.8M are in the public float.