Core & Main, Inc.
US ˙ NYSE ˙ US21874C1027

SecurityCNM / Core & Main, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership84,734 shares
Latest Disclosed Value $ 4,185,859
Citigroup Inc reports 178.00% increase in ownership of CNM / Core & Main, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 84,734 shares of Core & Main, Inc. (US:CNM) valued at $4,185,860 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 30,480 shares of Core & Main, Inc.. This represents a change in shares of 178.00% during the quarter. The current value of the position is $4,416,336 USD.

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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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)
2026-05-11 2026-03-31 13F CORE & MAIN CL A 21874C102 84,734 54,254 178.00 4,186 164.20 0.0009
2026-02-13 2025-12-31 13F CORE & MAIN CL A 21874C102 30,480 -6,418 -17.39 1,584 -20.24 0.0007
2025-11-10 2025-09-30 13F CORE & MAIN CL A 21874C102 36,898 1,144 3.20 1,986 -7.93 0.0009
2025-08-11 2025-06-30 13F CORE & MAIN CL A 21874C102 35,754 -9,671 -21.29 2,158 -1.69 0.0011
2025-05-12 2025-03-31 13F CORE & MAIN CL A 21874C102 45,425 -8,599 -15.92 2,194 -20.22 0.0011
2025-02-12 2024-12-31 13F CORE & MAIN CL A 21874C102 54,024 12,023 28.63 2,750 47.53 0.0016
2024-11-12 2024-09-30 13F CORE & MAIN CL A 21874C102 42,001 3,139 8.08 1,865 -1.95 0.0011
2024-08-12 2024-06-30 13F CORE & MAIN CL A 21874C102 38,862 10,472 36.89 1,902 16.98 0.0012
2024-05-10 2024-03-31 13F CORE & MAIN CL A 21874C102 28,390 4,104 16.90 1,625 65.65 0.0011
2024-02-09 2023-12-31 13F CORE & MAIN CL A 21874C102 24,286 4,860 25.02 981 75.18 0.0007
2023-12-06 2023-09-30 13F/A-1 CORE & MAIN CL A 21874C102 19,426 -278 -1.41 560 -9.24 0.0004
2023-11-09 2023-09-30 13F CORE & MAIN CL A 21874C102 19,426 -278 560 0.0002
2023-08-10 2023-06-30 13F CORE & MAIN CL A 21874C102 19,704 631 3.31 618 40.23 0.0004
2023-05-11 2023-03-31 13F CORE & MAIN CL A 21874C102 19,073 -445 -2.28 441 17.02 0.0003
2023-02-09 2022-12-31 13F CORE & MAIN CL A 21874C102 19,518 -789 -3.89 377 -18.44 0.0003
2022-11-10 2022-09-30 13F CORE & MAIN CL A 21874C102 20,307 -3,329 -14.08 461 -12.52 0.0003
2022-08-10 2022-06-30 13F CORE & MAIN CL A 21874C102 23,636 -3,197 -11.91 527 -18.80 0.0004
2022-05-12 2022-03-31 13F CORE & MAIN CL A 21874C102 26,833 320 1.21 649 -19.28 0.0004
2022-02-10 2021-12-31 13F CORE & MAIN CL A 21874C102 26,513 -763 -2.80 804 12.45 0.0004
2021-11-10 2021-09-30 13F CORE & MAIN CL A 21874C102 27,276 27,276 715 0.0004
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.