Core & Main, Inc.
US ˙ NYSE ˙ US21874C1027

SecurityCNM / Core & Main, Inc.
InstitutionBarclays Plc
Latest Disclosed Ownership114,234 shares
Latest Disclosed Value $ 5,936,741
Barclays Plc ownership in CNM / Core & Main, Inc.

On February 13, 2026 - Barclays Plc filed a 13F-HR form disclosing ownership of 114,234 shares of Core & Main, Inc. (US:CNM) valued at $5,936,741 USD as of December 31, 2025. The entity filed a previous 13F-HR/A on March 31, 2026 disclosing 166,651 shares of Core & Main, Inc.. This represents a change in shares of -31.45% during the quarter. The current value of the position is $5,953,876 USD.

Barclays Plc has a history of taking positions in derivatives of the underlying security (CNM) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

CNM / Core & Main, Inc. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-02-13 2025-12-31 13F CORE &amp MAIN COM 21874C102 114,234 -52,417 -31.45 5,937 -33.82 0.0014
2026-03-31 2025-09-30 13F/A-3 CORE &amp MAIN COM 21874C102 166,651 77,327 86.57 8,971 66.42 0.0019
2026-03-19 2025-09-30 13F/A-2 CORE & MAIN COM 21874C102 248,909 159,585 11,052 0.0029
2025-11-12 2025-09-30 13F CORE &amp MAIN COM 21874C102 166,651 77,327 8,971 0.0019
2026-02-27 2025-06-30 13F/A-2 CORE &amp MAIN COM 21874C102 89,324 -199,935 -69.12 5,391 -61.43 0.0012
2025-08-14 2025-06-30 13F/A-1 CORE &amp MAIN COM 21874C102 89,324 -199,935 5 0.0012
2025-08-13 2025-06-30 13F CORE &amp MAIN COM 21874C102 89,324 -199,935 5 0.0004
2026-03-17 2025-03-31 13F/A-1 CORE & MAIN COM 21874C102 289,259 -17,166 -5.60 13,974 -10.42 0.0040
2025-05-15 2025-03-31 13F CORE &amp MAIN COM 21874C102 289,259 -17,166 14 0.0040
2026-03-19 2024-12-31 13F/A-1 CORE & MAIN COM 21874C102 306,425 57,516 23.11 15,600 41.16 0.0044
2025-02-13 2024-12-31 13F CORE &amp MAIN COM 21874C102 306,425 57,516 16 0.0044
2026-03-31 2024-09-30 13F/A-2 CORE & MAIN COM 21874C102 248,909 -96,434 -27.92 11,052 -34.61 0.0029
2024-11-19 2024-09-30 13F/A-1 CORE &amp MAIN COM 21874C102 248,909 -96,434 11 0.0029
2024-11-15 2024-09-30 13F CORE &amp MAIN COM 21874C102 248,909 -96,434 11 0.0009
2026-03-23 2024-06-30 13F/A-1 CORE & MAIN COM 21874C102 345,343 -92,860 -21.19 16,901 -32.63 0.0052
2024-08-14 2024-06-30 13F CORE &amp MAIN COM 21874C102 345,343 -92,860 17 0.0052
2026-03-24 2024-03-31 13F/A-1 CORE & MAIN COM 21874C102 438,203 73,994 20.32 25,087 70.46 0.0087
2024-05-15 2024-03-31 13F CORE &amp MAIN COM 21874C102 438,203 73,994 25 0.0087
2026-03-25 2023-12-31 13F/A-1 CORE & MAIN COM 21874C102 364,209 -177,731 -32.80 14,718 -5.87 0.0054
2024-02-15 2023-12-31 13F CORE &amp MAIN COM 21874C102 364,209 -177,731 15 0.0054
2026-03-26 2023-09-30 13F/A-1 CORE & MAIN COM 21874C102 541,940 510,216 1,608.30 15,635 1,472.84 0.0097
2023-11-07 2023-09-30 13F CORE &amp MAIN COM 21874C102 541,940 510,216 16 0.0097
2026-03-30 2023-06-30 13F/A-2 CORE & MAIN COM 21874C102 31,724 28,536 895.11 994 1,261.64 0.0006
2023-09-20 2023-06-30 13F/A-1 CORE &amp MAIN COM 21874C102 31,724 28,536 1 0.0006
2023-08-03 2023-06-30 13F CORE &amp MAIN COM 21874C102 31,724 28,536 1 0.0006
2026-03-30 2023-03-31 13F/A-1 CORE & MAIN COM 21874C102 3,188 -1,014 -24.13 74 -9.88 0.0000
2023-05-04 2023-03-31 13F CORE &amp MAIN COM 21874C102 3,188 -1,014 0 0.0000
2026-03-30 2022-12-31 13F/A-1 CORE & MAIN COM 21874C102 4,202 -36,819 -89.76 81 -91.32 0.0000
2023-02-13 2022-12-31 13F CORE &amp MAIN COM 21874C102 4,202 -36,819 0 0.0000
2022-11-03 2022-09-30 13F CORE &amp MAIN COM 21874C102 41,021 34,779 557.18 933 571.22 0.0010
2022-08-12 2022-06-30 13F CORE &amp MAIN COM 21874C102 6,242 5,607 882.99 139 826.67 0.0001
2022-05-16 2022-03-31 13F CORE &amp MAIN COM 21874C102 635 635 15 0.0000
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-08-14 2025-06-30 13F/A CORE &amp MAIN OPT Call 0 0 n/a n/a n/a
2026-02-27 2025-06-30 13F/A CORE &amp MAIN OPT Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-13 2025-06-30 13F CORE &amp MAIN OPT Call 0 0 n/a n/a n/a
2026-03-17 2025-03-31 13F/A CORE & MAIN OPT Call 99,900 4,826 n/a n/a n/a
2025-05-15 2025-03-31 13F CORE &amp MAIN OPT Call 99,900 5 n/a n/a n/a
2026-03-23 2024-06-30 13F/A CORE &amp MAIN OPT Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F CORE &amp MAIN OPT Call 0 0 n/a n/a n/a
2026-03-24 2024-03-31 13F/A CORE & MAIN OPT Call 43,300 2,479 n/a n/a n/a
2024-05-15 2024-03-31 13F CORE &amp MAIN OPT Call 43,300 2 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-08-14 2025-06-30 13F/A CORE &amp MAIN OPT Put 0 0 n/a n/a n/a
2026-02-27 2025-06-30 13F/A CORE &amp MAIN OPT Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-13 2025-06-30 13F CORE &amp MAIN OPT Put 0 0 n/a n/a n/a
2026-03-17 2025-03-31 13F/A CORE & MAIN OPT Put 99,900 4,826 n/a n/a n/a
2025-05-15 2025-03-31 13F CORE &amp MAIN OPT Put 99,900 5 n/a n/a n/a
2026-03-23 2024-06-30 13F/A CORE &amp MAIN OPT Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F CORE &amp MAIN OPT Put 0 0 n/a n/a n/a
2026-03-24 2024-03-31 13F/A CORE & MAIN OPT Put 37,500 -31.19 2,147 -2.54 n/a n/a n/a
2024-05-15 2024-03-31 13F CORE &amp MAIN OPT Put 37,500 2 n/a n/a n/a
2026-03-25 2023-12-31 13F/A CORE & MAIN OPT Put 54,500 2,202 n/a n/a n/a
2024-02-15 2023-12-31 13F CORE &amp MAIN OPT Put 54,500 2 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.