CORE & MAIN INC CNM
CL A · Common Stock · CUSIP 21874C102 · ISIN US21874C1027
Infrastructure (water, wastewater, storm drainage and fire protection) limited partnership company
- SectorIndustrials
- IndustryWholesale-Durable Goods, NEC
- HeadquartersSt. Louis, MO
- Founded2017
- Websitecoreandmain.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($31.8m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $40.41. Options: 6 managers hold calls ($6.7m notional), 13 hold puts ($89.8m).
Trends to Q4 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 170 |
| Q4 2022 | 168 |
| Q1 2023 | 181 |
| Q2 2023 | 224 |
| Q3 2023 | 266 |
| Q4 2023 | 365 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 112 | 84 |
| Q1 2023 | 113 | 75 |
| Q2 2023 | 148 | 82 |
| Q3 2023 | 187 | 81 |
| Q4 2023 | 240 | 115 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2023 | $4.2m | $184.7k | 0.04 |
| Q2 2023 | $1.4m | $932.3k | 0.68 |
| Q3 2023 | $11.0m | $2.2m | 0.20 |
| Q4 2023 | $6.7m | $89.8m | 13.46 |
Biggest buyers
| BlackRock Inc. | Added | +7.2m |
| Select Equity Group, L.P. | Added | +4.5m |
| MORGAN STANLEY | Added | +4.4m |
| VANGUARD GROUP INC | Added | +3.9m |
| JPMORGAN CHASE & CO | Added | +3.0m |
| STATE STREET CORP | Added | +2.3m |
| Pacer Advisors, Inc. | New | +2.3m |
| Handelsbanken Fonder AB | Added | +1.7m |
| Invesco Ltd. | Added | +1.6m |
| MARSHALL WACE, LLP | Added | +1.6m |
Biggest sellers
| Clayton, Dubilier & Rice, LLC | Reduced | -49.4m |
| NORGES BANK | Reduced | -2.0m |
| Robeco Schweiz AG | Reduced | -1.4m |
| CITADEL ADVISORS LLC | Reduced | -1.2m |
| VICTORY CAPITAL MANAGEMENT INC | Reduced | -1.0m |
| Ghisallo Capital Management LLC | Sold out | -1.0m |
| J. Goldman & Co LP | Reduced | -619.8k |
| Qube Research & Technologies Ltd | Reduced | -506.7k |
| Alyeska Investment Group, L.P. | Sold out | -483.8k |
| FIL Ltd | Reduced | -483.1k |
Biggest calls
| PEAK6 Investments LLC | New | $5.4m133.6k shares |
| CITADEL ADVISORS LLC | Added | $703.1k17.4k shares |
| SIMPLEX TRADING, LLC | New | $323.0k8.0k shares |
| JANE STREET GROUP, LLC | New | $242.5k6.0k shares |
| GROUP ONE TRADING LLC | Reduced | $8.1k200 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| MAVERICK CAPITAL LTD | New | $30.6m756.9k shares |
| Squarepoint Ops LLC | New | $11.0m272.6k shares |
| CITADEL ADVISORS LLC | Added | $9.3m230.5k shares |
| Caption Management, LLC | New | $8.1m200.0k shares |
| SIMPLEX TRADING, LLC | New | $7.4m182.8k shares |
| PEAK6 Investments LLC | New | $5.9m146.1k shares |
| WOLVERINE TRADING, LLC | Added | $5.3m132.2k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $4.7m116.2k shares |
| NOMURA HOLDINGS INC | New | $3.4m85.0k shares |
| BARCLAYS PLC | New | $2.2m54.5k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution +0.1 pts · filed 2026-04-07 | 10.1% |
| Capital World Investors 13G · institution new · filed 2026-05-14 | 6.2% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.3% |
Fell to 5% or below in the last year: MORGAN STANLEY (2.7%, 2026-05-11), VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC), Select Equity Group, L.P. (4.1%, 2026-02-17)
Insider purchases and sales in Q4 2023
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2022 | 0 | — | 0 | — | — |
| Q2 2022 | 0 | — | 1 | $972.1k | — |
| Q3 2022 | 0 | — | 3 | $2.6m | — |
| Q4 2022 | 0 | — | 0 | — | — |
| Q1 2023 | 0 | — | 2 | $3.1m | — |
| Q2 2023 | 0 | — | 7 | $13.5m | $13.0m |
| Q3 2023 | 0 | — | 3 | $3.1m | $3.1m |
| Q4 2023 | 0 | — | 4 | $7.7m | $7.7m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-12-11 | CD&R Investment Associates X, Ltd. +6 10% owner · By Affiliate | Sold | $724.2m20.4m shares |
| 2023-12-01 | Stephens John Weldon VP, Corp. Controller | Sold plan | $666.2k18.5k shares |
| 2023-11-15 | CD&R Investment Associates X, Ltd. +6 10% owner · By Affiliate | Sold | $86.8m2.9m shares |
| 2023-11-15 | Witkowski Mark R Chief Financial Officer | Sold plan | $1.4m40.0k shares |
| 2023-11-15 | Cowles Bradford A President | Sold plan | $850.2k25.0k shares |
| 2023-11-15 | Stephens John Weldon VP, Corp. Controller | Sold plan | $419.5k12.5k shares |
| 2023-11-14 | Cowles Bradford A President | Sold plan | $826.2k25.0k shares |
| 2023-11-09 | CD&R Investment Associates X, Ltd. +6 10% owner · By Affiliate | Sold | $673.5m22.1m shares |
| 2023-11-09 | Witkowski Mark R Chief Financial Officer | Sold plan | $642.0k20.0k shares |
| 2023-10-31 | Castellano James G Director · By Trust | Sold plan | $297.0k9.9k shares |
| 2023-10-30 | Castellano James G Director · By Trust | Sold plan | $78.3k2.6k shares |
| 2023-10-12 | Cowles Bradford A President | Sold plan | $1.6m50.0k shares |
| 2023-10-11 | Stephens John Weldon VP, Corp. Controller | Sold plan | $366.3k11.8k shares |
| 2023-10-10 | Stephens John Weldon VP, Corp. Controller | Sold plan | $21.7k700 shares |
| 2023-10-04 | Witkowski Mark R Chief Financial Officer | Sold plan | $600.4k20.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q4 2023
| Manager | Shares | Change |
|---|---|---|
| Clayton, Dubilier & Rice, LLC 53.92% of their portfolio | 49.7m $2.0bn | Reduced -49.4m |
| VANGUARD GROUP INC 0.01% of their portfolio | 13.4m $542.2m | Added +3.9m |
| BlackRock Inc. 0.01% of their portfolio | 12.3m $495.3m | Added +7.2m |
| Select Equity Group, L.P. 1.36% of their portfolio | 9.2m $370.1m | Added +4.5m |
| MORGAN STANLEY 0.02% of their portfolio | 8.6m $349.5m | Added +4.4m |
| FMR LLC 0.02% of their portfolio | 7.4m $299.0m | Reduced -467.3k |
| Pictet Asset Management Holding SA 0.29% of their portfolio | 6.4m $258.6m | Added +1.3m |
| JANUS HENDERSON GROUP PLC 0.15% of their portfolio | 6.1m $247.3m | Added +969.6k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 4.9m $196.9m | Added +3.0m |
| Invesco Ltd. 0.04% of their portfolio | 4.1m $165.0m | Added +1.6m |
| SAMLYN CAPITAL, LLC 3.53% of their portfolio | 4.0m $162.3m | Reduced -194.9k |
| VICTORY CAPITAL MANAGEMENT INC 0.16% of their portfolio | 3.8m $152.9m | Reduced -1.0m |
| STATE STREET CORP 0.01% of their portfolio | 3.8m $151.8m | Added +2.3m |
| Amundi 0.06% of their portfolio | 3.3m $132.9m | Reduced -282.8k |
| Handelsbanken Fonder AB 0.53% of their portfolio | 2.7m $109.4m | Added +1.7m |
| AMERIPRISE FINANCIAL INC 0.03% of their portfolio | 2.6m $105.8m | Added +284.1k |
| FIRST TRUST ADVISORS LP 0.11% of their portfolio | 2.4m $97.1m | Added +66.6k |
| FIDUCIARY MANAGEMENT INC /WI/ 0.87% of their portfolio | 2.3m $93.0m | Added +236.5k |
| Pacer Advisors, Inc. 0.26% of their portfolio | 2.3m $91.8m | New |
| TWO SIGMA INVESTMENTS, LP 0.22% of their portfolio | 2.2m $89.9m | Added +372.2k |
| TWO SIGMA ADVISERS, LP 0.20% of their portfolio | 2.1m $86.4m | Added +314.2k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 2.1m $84.1m | Added +556.9k |
| Zurich Insurance Group Ltd/FI 0.83% of their portfolio | 2.0m $81.5m | Added +1.3m |
| Swedbank AB 0.11% of their portfolio | 1.8m $70.7m | Reduced -29.6k |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. 0.70% of their portfolio | 1.7m $70.1m | Added +73.8k |
| NORGES BANK 0.01% of their portfolio | 1.7m $69.3m | Reduced -2.0m |
| MARSHALL WACE, LLP 0.13% of their portfolio | 1.6m $66.5m | Added +1.6m |
| Robeco Schweiz AG 1.05% of their portfolio | 1.6m $62.7m | Reduced -1.4m |
| ROYAL LONDON ASSET MANAGEMENT LTD 0.18% of their portfolio | 1.5m $61.2m | New |
| FIL Ltd 0.06% of their portfolio | 1.4m $57.1m | Reduced -483.1k |
| ACK Asset Management LLC 6.57% of their portfolio | 1.4m $54.6m | Added +47.0k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 1.3m $54.5m | Added +286.5k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 1.3m $52.2m | Added +198.0k |
| Point72 Asset Management, L.P. 0.15% of their portfolio | 1.2m $49.6m | Added +528.8k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 1.2m $48.4m | Reduced -480.6k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 1.2m $48.1m | Added +1.1m |
| JANE STREET GROUP, LLC 0.06% of their portfolio | 1.1m $46.5m | Added +1.1m |
| Driehaus Capital Management LLC 0.55% of their portfolio | 1.1m $46.0m | Reduced -21.3k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.31% of their portfolio | 1.1m $44.2m | Added +430.4k |
| Artemis Investment Management LLP 0.63% of their portfolio | 1.1m $43.2m | New |
| Bank of New York Mellon Corp 0.01% of their portfolio | 1.0m $42.2m | Added +729.0k |
| LORD, ABBETT & CO. LLC 0.07% of their portfolio | 1.0m $42.1m | New |
| NORTHERN TRUST CORP 0.01% of their portfolio | 1.0m $42.0m | Added +482.8k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.16% of their portfolio | 1.0m $40.8m | Added +461.6k |
| Capital International Investors 0.01% of their portfolio | 892.7k $36.1m | New |
| KBC Group NV 0.12% of their portfolio | 826.3k $33.4m | Added +169.3k |
| Pembroke Management, LTD 3.84% of their portfolio | 765.8k $30.9m | Added +138.0k |
| RENAISSANCE TECHNOLOGIES LLC 0.05% of their portfolio | 763.7k $30.9m | Reduced -51.7k |
| Hood River Capital Management LLC 0.83% of their portfolio | 750.6k $30.3m | New |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.02% of their portfolio | 631.9k $25.5m | Reduced -226.4k |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO 0.29% of their portfolio | 599.0k $24.2m | Reduced -21.0k |
| Hill City Capital, LP 2.12% of their portfolio | 595.0k $24.0m | Unchanged |
| Woodline Partners LP 0.26% of their portfolio | 591.7k $23.9m | Added +171.9k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 578.1k $23.4m | Added +158.7k |
| DF DENT & CO INC 0.31% of their portfolio | 573.2k $23.2m | Added +337.7k |
| Thematics Asset Management 1.00% of their portfolio | 565.0k $22.8m | Reduced -13.0k |
| Impax Asset Management Group plc 0.09% of their portfolio | 541.2k $21.9m | Reduced -159.3k |
| RAYMOND JAMES & ASSOCIATES 0.02% of their portfolio | 537.6k $21.7m | Reduced -2.3k |
| D. E. Shaw & Co., Inc. 0.03% of their portfolio | 506.7k $20.5m | Reduced -321.6k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 501.5k $20.3m | Added +493.4k |
| Legal & General Group Plc 0.01% of their portfolio | 459.8k $18.6m | Added +76.6k |
| MILLENNIUM MANAGEMENT LLC 0.02% of their portfolio | 459.7k $18.6m | Added +410.8k |
| Qube Research & Technologies Ltd 0.04% of their portfolio | 436.4k $17.6m | Reduced -506.7k |
| Skandinaviska Enskilda Banken AB (publ) 0.10% of their portfolio | 430.0k $17.4m | New |
| KENNEDY CAPITAL MANAGEMENT LLC 0.37% of their portfolio | 423.2k $17.1m | Added +7.0k |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.06% of their portfolio | 407.3k $16.5m | Added +82.1k |
| ACADIAN ASSET MANAGEMENT LLC 0.06% of their portfolio | 398.3k $16.1m | Added +384.7k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 386.5k $15.6m | Added +267.6k |
| MACKENZIE FINANCIAL CORP 0.02% of their portfolio | 383.2k $15.5m | New |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.06% of their portfolio | 376.3k $15.2m | Reduced -464.3k |
| Balyasny Asset Management L.P. 0.04% of their portfolio | 374.6k $15.1m | New |
| BARCLAYS PLC 0.01% of their portfolio | 364.2k $14.7m | Reduced -177.7k |
| Verition Fund Management LLC 0.15% of their portfolio | 361.2k $14.6m | Added +230.2k |
| Aventail Capital Group, LP 1.23% of their portfolio | 360.0k $14.5m | New |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 350.5k $14.2m | Added +290.8k |
| NATIXIS ADVISORS, LLC 0.04% of their portfolio | 346.4k $14.0m | Added +31.6k |
| Cubist Systematic Strategies, LLC 0.17% of their portfolio | 343.8k $13.9m | Reduced -7.8k |
| GILDER GAGNON HOWE & CO LLC 0.19% of their portfolio | 339.1k $13.7m | New |
| Polar Capital Holdings Plc 0.08% of their portfolio | 330.6k $13.4m | New |
| PUTNAM INVESTMENTS LLC 0.02% of their portfolio | 330.0k $13.3m | Reduced -25.2k |
| Forest Avenue Capital Management LP 4.43% of their portfolio | 323.8k $13.1m | New |
| Trexquant Investment LP 0.28% of their portfolio | 306.5k $12.4m | Added +7.1k |
| Cinctive Capital Management LP 0.85% of their portfolio | 302.3k $12.2m | Added +146.8k |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.32% of their portfolio | 264.6k $10.7m | Reduced -119.5k |
| Swiss National Bank 0.01% of their portfolio | 261.5k $10.6m | Added +14.4k |
| Vulcan Value Partners, LLC 0.15% of their portfolio | 257.9k $10.4m | Reduced -80.3k |
| BESSEMER GROUP INC 0.02% of their portfolio | 254.6k $10.3m | Added +240.7k |
| STOREBRAND ASSET MANAGEMENT AS 0.04% of their portfolio | 251.9k $10.2m | Reduced -118.9k |
| Lighthouse Investment Partners, LLC 0.74% of their portfolio | 250.0k $10.1m | Added +119.8k |
| Perpetual Ltd 0.10% of their portfolio | 247.8k $10.0m | Added +8.0k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 245.6k $9.9m | Added +95.4k |
| Schonfeld Strategic Advisors LLC 0.08% of their portfolio | 236.0k $9.5m | Added +191.1k |
| VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 230.2k $9.3m | Added +32.3k |
| Clear Harbor Asset Management, LLC 0.87% of their portfolio | 225.2k $9.1m | Reduced -4.7k |
| Jefferies Financial Group Inc. 0.14% of their portfolio | 223.0k $9.0m | New |
| Atika Capital Management LLC 1.15% of their portfolio | 200.0k $8.1m | New |
| Rokos Capital Management LLP 0.25% of their portfolio | 200.0k $8.1m | Reduced -100.0k |
| POLEN CAPITAL MANAGEMENT LLC 0.02% of their portfolio | 187.1k $7.6m | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 186.6k $7.5m | Reduced -131.8k |
| AMERICAN INTERNATIONAL GROUP, INC. 0.03% of their portfolio | 184.6k $7.5m | Added +183.7k |