Core & Main, Inc.
Core & Main, Inc. (CNM) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · CNM · as of Mar 31, 2025
Ownership Breakdown
441
Institutional Holders
▲ 4 vs Q4
$10.07B
Total Inst. Value
▼ $132.39M vs Q4
188.14M
Shares Outstanding
freeFloat 99.76%
208.41M
13F Shares Held
▲ 8.06M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
CNM largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. wholesale-durable goods, nec | 21.83M | 11.49% | 11.49% | $1.05T | May 2, 2025 | ▼ 509.6K |
VANGUARD GROUP INC wholesale-durable goods, nec | 17.91M | 9.42% | 9.42% | $865.10B | May 9, 2025 | ▼ 312.8K |
SELECT EQUITY GROUP, L.P. wholesale-durable goods, nec | 12.88M | 6.78% | 6.78% | $622.33B | May 15, 2025 | ▼ 300.9K |
MORGAN STANLEY wholesale-durable goods, nec | 10.62M | 5.59% | 5.59% | $513.17B | May 15, 2025 | ▲ 3.40M |
PICTET ASSET MANAGEMENT HOLDING SA wholesale-durable goods, nec | 7.86M | 4.13% | 4.13% | $379.58B | May 5, 2025 | ▼ 149.6K |
FMR LLC wholesale-durable goods, nec | 6.79M | 3.57% | 3.57% | $327.99B | May 12, 2025 | ▼ 2.27M |
STATE STREET CORP wholesale-durable goods, nec | 5.92M | 3.12% | 3.12% | $286.23B | May 15, 2025 | ▲ 12.6K |
ANOMALY CAPITAL MANAGEMENT, LP wholesale-durable goods, nec | 5.24M | 2.76% | 2.76% | $253.26B | May 15, 2025 | ▲ 1.34M |
D1 CAPITAL PARTNERS L.P. wholesale-durable goods, nec | 4.95M | 2.60% | 2.60% | $238.93B | May 15, 2025 | NEW |
JANUS HENDERSON GROUP PLC wholesale-durable goods, nec | 4.85M | 2.55% | 2.55% | $234.94B | May 15, 2025 | ▼ 85.6K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
21
Increased
+10.88M shares3
New Positions
first time holders26
Decreased
−8.23M shares0
Sold Out
fully exitedNet shares change (top 50)
+2.65M
+10.88M / −8.23M
Net new holders
-2
3 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
CNM insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
1
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Bradbury Robyn L Chief Financial Officer | Apr 17, 2026 | J-Other | 5,000 | — | — | 152.4K | Form 4 ↗ |
Bradbury Robyn L Chief Financial Officer | Apr 17, 2026 | C-Conversion | 5,000 | — | — | 17.5K | Form 4 ↗ |
Bradbury Robyn L Chief Financial Officer | Apr 17, 2026 | Sale | 1,647 | $51.94 | $85.5K | 15.9K | Form 4 ↗ |
Bradbury Robyn L Chief Financial Officer | Apr 17, 2026 | Sale | 3,353 | $52.84 | $177.2K | 12.5K | Form 4 ↗ |
Bradbury Robyn L Chief Financial Officer | Apr 17, 2026 | J-Other | 5,000 | — | — | 5.0K | Form 4 ↗ |
Bradbury Robyn L Chief Financial Officer | Apr 17, 2026 | C-Conversion | 5,000 | — | — | 0 | Form 4 ↗ |
Hope James D director | Apr 7, 2026 | Purchase | 1,972 | $50.70 | $100.0K | 6.9K | Form 4 ↗ |
Hardwick M Susan director | Apr 1, 2026 | Award | 580 | — | — | 580 | Form 4 ↗ |
Giles Jeffrey D EVP, Corporate Development | Mar 12, 2026 | Award | 21,585 | $47.63 | $1.03M | 21.6K | Form 4 ↗ |
Giles Jeffrey D EVP, Corporate Development | Mar 12, 2026 | Award | 3,021 | — | — | 9.7K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Core & Main, Inc. (CNM) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 0.24%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Core & Main, Inc. is BLACKROCK, INC., holding approximately 21.83 million shares — equal to 11.49% of outstanding shares — as of March 31, 2025.
A total of 441 institutional investors currently hold CNM stock, with a combined institutional value of approximately $10.07 billion as of the most recent 13F filing period.
Frequently asked questions
CNM ownershipCore & Main, Inc. (CNM) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is BLACKROCK, INC. with a 11.49% stake. Company insiders hold 0.24%. Data sourced from SEC Form 13F as of March 31, 2025.