CNM Insider Trading

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Insider Trading History
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Insider Ownership Percentage: 1.51%

Insider Buying (Last 12 Months): $99,980.40

Insider Selling (Last 12 Months): $32,716,454.69

Core & Main Insider Trading History Chart

Core & Main Share Price & Price History

^$47.27

▼ -0.005 (-0.01%)

As of 05/22/2026 03:59 PM ET

Days: 30 | 90 | 365

Core & Main Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
4/17/2026	Robyn L Bradbury	CFO	Sell	5,000	$52.54	$262,700.00	12,500
4/7/2026	James D Hope	Director	Buy	1,972	$50.70	$99,980.40	6,939
8/18/2025	Mark R. Witkowski	CEO	Sell	100,000	$64.08	$6,408,000.00	35,847
7/22/2025	Robyn L Bradbury	CFO	Sell	5,000	$64.51	$322,550.00	8,555
7/18/2025	James G. Castellano	Director	Sell	43,994	$61.98	$2,726,748.12	4,638
7/18/2025	Orvin T. Kimbrough	Director	Sell	23,962	$61.77	$1,480,132.74	13,958
7/17/2025	Mark R. Witkowski	CEO	Sell	100,000	$61.26	$6,126,000.00	35,847
7/7/2025	Stephen O. LeClair	Insider	Sell	44,972	$61.91	$2,784,216.52	70,736
7/3/2025	Stephen O. LeClair	Insider	Sell	80,028	$62.27	$4,983,343.56	70,736
7/1/2025	Robyn L Bradbury	CFO	Sell	25,000	$60.49	$1,512,250.00	8,555
6/9/2025	Mark G. Whittenburg	General Counsel	Sell	49,100	$60.03	$2,947,473.00	9,691
6/6/2025	Mark G. Whittenburg	General Counsel	Sell	900	$60.03	$54,027.00	9,691
6/3/2025	Laura K. Schneider	Insider	Sell	45,695	$56.25	$2,570,343.75	12,873
5/28/2025	John R. Schaller	EVP	Sell	9,794	$55.00	$538,670.00	19,689
4/28/2025	John Weldon Stephens	CAO	Sell	10,214	$53.02	$541,546.28	4,120
4/2/2025	John Weldon Stephens	CAO	Sell	41,963	$50.48	$2,118,292.24	4,120
3/10/2025	John R. Schaller	EVP	Sell	21,868	$46.82	$1,023,859.76	16,452
2/10/2025	Bradford A. Cowles	President	Sell	25,000	$54.48	$1,362,000.00	16,010
1/15/2025	Mark G. Whittenburg	General Counsel	Sell	1,974	$55.29	$109,142.46	7,667
1/14/2025	Bradford A. Cowles	President	Sell	12,500	$54.07	$675,875.00	16,010
1/10/2025	Bradford A. Cowles	President	Sell	12,500	$50.50	$631,250.00	16,010
1/10/2025	John R. Schaller	EVP	Sell	60,452	$50.57	$3,057,057.64	17,898
1/10/2025	Mark G. Whittenburg	General Counsel	Sell	50,000	$50.49	$2,524,500.00	7,667
12/3/2024	Bradford A. Cowles	President	Sell	50,000	$55.07	$2,753,500.00	18,423
12/3/2024	Jeffrey D. Giles	EVP	Sell	25,000	$54.71	$1,367,750.00	11,615
12/3/2024	Margaret Newman	Director	Sell	15,000	$55.25	$828,750.00	11,769
12/3/2024	Stephen O. LeClair	CEO	Sell	200,000	$54.88	$10,976,000.00	92,349
7/15/2024	James G. Castellano	Director	Sell	12,500	$52.22	$652,750.00	11,769
7/10/2024	James G. Castellano	Director	Sell	200	$50.01	$10,002.00	11,769
5/8/2024	Mark R. Witkowski	CFO	Sell	50,000	$59.50	$2,975,000.00	23,898
4/23/2024	John Weldon Stephens	CAO	Sell	9,497	$55.19	$524,139.43	4,281
4/19/2024	John Weldon Stephens	CAO	Sell	5,503	$54.23	$298,427.69	4,281
4/19/2024	Mark G. Whittenburg	General Counsel	Sell	50,000	$54.08	$2,704,000.00	12,933
4/8/2024	Mark R. Witkowski	CFO	Sell	50,000	$58.51	$2,925,500.00	23,898
3/22/2024	John Weldon Stephens	CAO	Sell	15,000	$57.91	$868,650.00	4,281
3/22/2024	Mark G. Whittenburg	General Counsel	Sell	50,000	$57.91	$2,895,500.00	12,933
3/7/2024	John Weldon Stephens	VP	Sell	43,900	$50.02	$2,195,878.00	3,468
3/4/2024	John Weldon Stephens	VP	Sell	1,100	$50.02	$55,022.00	3,468
2/21/2024	Orvin T. Kimbrough	Director	Sell	313	$45.00	$14,085.00	9,320
2/16/2024	Orvin T. Kimbrough	Director	Sell	187	$45.00	$8,415.00	9,320
2/12/2024	Jeffrey D. Giles	VP	Sell	40,000	$44.14	$1,765,600.00	8,217
2/12/2024	Laura K. Schneider	Insider	Sell	100,000	$44.14	$4,414,000.00	9,672
2/12/2024	Orvin T. Kimbrough	Director	Sell	5,000	$44.17	$220,850.00	9,320
2/12/2024	Stephen O. LeClair	CEO	Sell	150,000	$44.14	$6,621,000.00	73,692
1/25/2024	Cd&R Investment Associates X,	Major Shareholder	Sell	22,907,815	$40.98	$938,762,258.70
1/16/2024	John R. Schaller	President	Sell	50,000	$40.99	$2,049,500.00	15,903
1/12/2024	Orvin T. Kimbrough	Director	Sell	5,000	$41.06	$205,300.00	9,320
1/11/2024	Jeffrey D. Giles	VP	Sell	40,000	$40.64	$1,625,600.00	8,217
1/11/2024	Laura K. Schneider	Insider	Sell	100,000	$40.63	$4,063,000.00	9,672
1/11/2024	Stephen O. LeClair	CEO	Sell	150,000	$40.66	$6,099,000.00	73,692
1/10/2024	Cd&R Investment Associates X,	Major Shareholder	Sell	22,675,728	$38.12	$864,398,751.36
12/11/2023	Cd&R Investment Associates X,	Major Shareholder	Sell	20,375,728	$35.54	$724,153,373.12
12/1/2023	John Weldon Stephens	VP	Sell	18,500	$36.01	$666,185.00	3,468
11/15/2023	Cd&R Investment Associates X,	Major Shareholder	Sell	2,850,000	$30.44	$86,754,000.00
11/15/2023	John Weldon Stephens	VP	Sell	12,500	$33.56	$419,500.00	3,468
11/15/2023	Mark R. Witkowski	CFO	Sell	40,000	$34.01	$1,360,400.00	19,221
11/14/2023	Bradford A. Cowles	President	Sell	25,000	$33.05	$826,250.00	14,679
11/9/2023	Cd&R Investment Associates X,	Major Shareholder	Sell	22,125,728	$30.44	$673,507,160.32
11/9/2023	Mark R. Witkowski	CFO	Sell	20,000	$32.10	$642,000.00	19,221
10/30/2023	James G. Castellano	Director	Sell	2,610	$30.00	$78,300.00	9,320
10/12/2023	Bradford A. Cowles	President	Sell	50,000	$31.94	$1,597,000.00	14,679
10/11/2023	John Weldon Stephens	VP	Sell	11,800	$31.04	$366,272.00	3,468
10/4/2023	Mark R. Witkowski	CFO	Sell	20,000	$30.02	$600,400.00	19,221
9/25/2023	James G. Castellano	Director	Sell	12,500	$28.35	$354,375.00	9,320
9/25/2023	Mark R. Witkowski	CFO	Sell	40,000	$28.44	$1,137,600.00	19,221
9/19/2023	Cd&R Investment Associates X,	Major Shareholder	Sell	21,125,728	$29.01	$612,857,369.28
7/13/2023	John R. Schaller	President	Sell	25,000	$31.96	$799,000.00	15,903
6/27/2023	Laura K. Schneider	Insider	Sell	49,904	$30.03	$1,498,617.12	9,672
6/12/2023	Cd&R Investment Associates X,	Major Shareholder	Sell	17,125,728	$28.21	$483,116,786.88
6/6/2023	Bradford A. Cowles	President	Sell	24,889	$28.10	$699,380.90	14,679
6/6/2023	Laura K. Schneider	Insider	Sell	50,000	$28.28	$1,414,000.00	9,672
6/6/2023	Stephen O. LeClair	CEO	Sell	4,288	$28.76	$123,322.88	73,692

SEC Filings (Institutional Ownership Changes) for Core & Main (NYSE:CNM)

94.19% of Core & Main stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Core & Main Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
5/20/2026	Liontrust Investment Partners LLP	1,582,952	$78.20M	1.1%	-8.5%	0.813%
5/19/2026	Bank of America Corp DE	405,500	$20.03M	0.0%	-54.1%	0.208%
5/19/2026	Edgestream Partners L.P.	201,577	$9.96M	0.3%	+818.0%	0.104%
5/19/2026	Janus Henderson Group PLC	3,377,281	$166.87M	0.1%	-27.0%	1.735%
5/18/2026	Amundi	3,050,565	$150.75M	0.0%	-0.4%	1.567%
5/18/2026	EverSource Wealth Advisors LLC	2,389	$0.12M	0.0%	+42.3%	0.001%
5/18/2026	California State Teachers Retirement System	219,934	$10.87M	0.0%	+22.3%	0.113%
5/18/2026	Royal Bank of Canada	205,079	$10.13M	0.0%	-0.1%	0.105%
5/18/2026	Empowered Funds LLC	7,552	$0.37M	0.0%	-13.6%	0.004%
5/16/2026	The Manufacturers Life Insurance Company	134,801	$6.66M	0.0%	-3.2%	0.069%
5/16/2026	Quantinno Capital Management LP	82,771	$4.09M	0.0%	+70.0%	0.043%
5/16/2026	Lazard Asset Management LLC	13,703	$0.68M	0.0%	+158.4%	0.007%
5/15/2026	Weiss Asset Management LP	17,500	$0.86M	0.0%	N/A	0.009%
5/14/2026	Renaissance Technologies LLC	814,100	$40.22M	0.1%	N/A	0.418%
5/14/2026	Public Employees Retirement System of Ohio	61,701	$3.05M	0.0%	-4.0%	0.032%
5/14/2026	Arrowstreet Capital Limited Partnership	17,135	$0.85M	0.0%	N/A	0.009%
5/14/2026	Caxton Associates LLP	59,434	$2.94M	0.1%	N/A	0.031%
5/14/2026	Sei Investments Co.	108,866	$5.38M	0.0%	-20.1%	0.056%
5/14/2026	Walleye Capital LLC	127,321	$6.29M	0.0%	-25,564.2%	0.065%
5/14/2026	State of Wyoming	8,932	$0.44M	0.1%	-3.6%	0.005%
5/13/2026	CI Investments Inc.	358,166	$17.69M	0.1%	-8.1%	0.184%
5/13/2026	First Trust Advisors LP	6,130,840	$302.86M	0.2%	+15.3%	3.150%
5/8/2026	PNC Financial Services Group Inc.	10,200	$0.50M	0.0%	+23.9%	0.005%
5/8/2026	Madison Asset Management LLC	115,698	$5.72M	0.1%	-0.9%	0.059%
5/7/2026	Dimensional Fund Advisors LP	2,661,022	$131.43M	0.0%	+6.1%	1.367%
5/7/2026	KBC Group NV	2,737,992	$135.26M	0.3%	+4.5%	1.407%
5/6/2026	Jennison Associates LLC	275,483	$13.61M	0.0%	-64.5%	0.142%
5/6/2026	California Public Employees Retirement System	396,840	$19.60M	0.0%	-3.2%	0.204%
5/6/2026	Bessemer Group Inc.	2,663,161	$131.56M	0.2%	+2.8%	1.368%
5/5/2026	Bank of New York Mellon Corp	1,231,839	$60.85M	0.0%	+12.6%	0.633%
5/5/2026	Illinois Municipal Retirement Fund	111,989	$5.53M	0.1%	+27.8%	0.058%
5/5/2026	Sanctuary Advisors LLC	4,597	$0.23M	0.0%	N/A	0.002%
5/4/2026	Bryn Mawr Trust Advisors LLC	6,954	$0.34M	0.0%	+7.4%	0.004%
5/4/2026	State of Michigan Retirement System	45,400	$2.24M	0.0%	+0.7%	0.023%
5/4/2026	Principal Financial Group Inc.	562,417	$27.78M	0.0%	+4.1%	0.289%
5/4/2026	Y.D. More Investments Ltd	6,746	$0.33M	0.0%	N/A	0.003%
5/4/2026	Procyon Advisors LLC	30,653	$1.51M	0.0%	-10.4%	0.016%
5/1/2026	Commonwealth of Pennsylvania Public School Empls Retrmt SYS	47,305	$2.34M	0.0%	-0.9%	0.024%
5/1/2026	Fifth Third Bancorp	66,014	$3.26M	0.0%	+742.6%	0.034%
5/1/2026	KLCM Advisors Inc.	5,000	$0.25M	0.0%	+25.0%	0.003%
4/30/2026	Hsbc Holdings PLC	128,258	$6.34M	0.0%	-37.8%	0.066%
4/30/2026	Granite Investment Partners LLC	5,751	$0.28M	0.0%	+12.7%	0.003%
4/30/2026	Isthmus Partners LLC	77,013	$3.80M	0.4%	-5.3%	0.040%
4/30/2026	Oregon Public Employees Retirement Fund	38,757	$1.92M	0.0%	+2.4%	0.020%
4/29/2026	Lmcg Investments LLC	116,353	$5.75M	0.3%	+6.0%	0.060%
4/29/2026	R Squared Ltd	8,619	$0.43M	0.2%	N/A	0.004%
4/29/2026	Swedbank AB	853,000	$42.14M	0.0%	-21.3%	0.438%
4/28/2026	NBT Bank N A NY	1,396	$69K	0.0%	-19.0%	0.001%
4/28/2026	Montrusco Bolton Investments Inc.	167,215	$8.26M	0.1%	-2.6%	0.086%
4/28/2026	Praxis Investment Management Inc.	5,835	$0.29M	0.0%	N/A	0.003%
4/27/2026	HB Wealth Management LLC	4,140	$0.21M	0.0%	N/A	0.002%
4/27/2026	New York State Teachers Retirement System	99,076	$4.89M	0.0%	-6.7%	0.051%
4/27/2026	Y Intercept Hong Kong Ltd	7,849	$0.39M	0.0%	-60.9%	0.004%
4/27/2026	Leonteq Securities AG	667	$33K	0.0%	-81.2%	0.000%
4/27/2026	Fideuram Intesa Sanpaolo Private Banking S.P.A.	55,502	$2.74M	0.1%	-10.0%	0.029%
4/25/2026	Boston Trust Walden Corp	193,193	$9.54M	0.1%	-1.2%	0.099%
4/24/2026	Root Financial Partners LLC	895	$44K	0.0%	+111.6%	0.000%
4/22/2026	Pictet Asset Management Holding SA	6,514,667	$321.78M	0.3%	-12.5%	3.347%
4/22/2026	Union Bancaire Privee UBP SA	14,814	$0.71M	0.0%	-10.4%	0.008%
4/22/2026	Sterling Capital Management LLC	3,459	$0.17M	0.0%	-37.1%	0.002%
4/21/2026	Foster & Motley Inc.	34,741	$1.72M	0.1%	-5.1%	0.018%
4/21/2026	Louisiana State Employees Retirement System	54,700	$2.70M	0.0%	N/A	0.028%
4/20/2026	Fifth Third Wealth Advisors LLC	5,726	$0.28M	0.0%	+4.8%	0.003%
4/20/2026	OP Asset Management Ltd	17,643	$0.87M	0.0%	N/A	0.009%
4/20/2026	Assenagon Asset Management S.A.	932,323	$46.06M	0.1%	+1,660.3%	0.479%
4/16/2026	SG Americas Securities LLC	50,179	$2.48M	0.0%	-38.9%	0.026%
4/16/2026	E. Ohman J or Asset Management AB	310,530	$15.34M	0.4%	+561.3%	0.160%
3/17/2026	Rockefeller Capital Management L.P.	240,686	$12.51M	0.0%	-2.9%	0.123%
3/9/2026	Corient Private Wealth LLC	19,466	$1.01M	0.0%	-16.2%	0.010%
3/6/2026	Hsbc Holdings PLC	206,358	$10.72M	0.0%	-0.6%	0.106%
2/24/2026	Pacer Advisors Inc.	22,806	$1.19M	0.0%	-8.7%	0.012%
2/19/2026	Invesco Ltd.	2,917,310	$151.61M	0.0%	+2.9%	1.492%
2/19/2026	Corient Private Wealth LLC	19,466	$1.01M	0.0%	-16.2%	0.010%
2/18/2026	Mercer Global Advisors Inc. ADV	7,449	$0.39M	0.0%	+7.9%	0.004%
2/18/2026	Vident Advisory LLC	27,151	$1.41M	0.0%	+230.9%	0.014%
2/18/2026	State of Tennessee Department of Treasury	65,199	$3.48M	0.0%	-4.1%	0.033%
2/18/2026	Mackenzie Financial Corp	769,524	$40.60M	0.0%	+0.5%	0.394%
2/18/2026	Empowered Funds LLC	8,736	$0.45M	0.0%	N/A	0.004%
2/18/2026	XN LP	698,200	$36.29M	1.0%	N/A	0.357%
2/18/2026	XTX Topco Ltd	16,816	$0.87M	0.0%	N/A	0.009%
2/18/2026	Zimmer Partners LP	200,000	$10.39M	0.3%	-69.0%	0.102%
2/18/2026	VARCOV Co.	11,823	$0.61M	0.2%	N/A	0.006%
2/18/2026	SummitTX Capital L.P.	75,936	$3.95M	0.1%	+377.9%	0.039%
2/18/2026	Susquehanna Fundamental Investments LLC	27,894	$1.45M	0.0%	N/A	0.014%
2/18/2026	Polymer Capital Management US LLC	19,400	$1.01M	0.1%	-50.4%	0.010%
2/18/2026	Oxford Asset Management LLP	16,096	$0.84M	0.3%	N/A	0.008%
2/18/2026	Millennium Management LLC	469,689	$24.41M	0.0%	-60.3%	0.240%
2/18/2026	Man Group plc	198,256	$10.30M	0.0%	+704.4%	0.101%
2/18/2026	Interval Partners LP	1,228,528	$63.85M	1.1%	-31.0%	0.628%
2/18/2026	Janus Henderson Group PLC	4,623,727	$240.27M	0.1%	-10.4%	2.365%
2/18/2026	Gotham Asset Management LLC	6,720	$0.35M	0.0%	-68.5%	0.003%
2/18/2026	Engineers Gate Manager LP	98,537	$5.12M	0.1%	-42.3%	0.050%
2/18/2026	Circumference Group LLC	90,000	$4.68M	5.0%	+80.0%	0.046%
2/18/2026	Concentric Capital Strategies LP	199,632	$10.38M	0.5%	-12.6%	0.102%
2/18/2026	Balyasny Asset Management L.P.	150,677	$7.83M	0.0%	-80.3%	0.077%
2/17/2026	Freestone Grove Partners LP	21,224	$1.10M	0.0%	-93.2%	0.011%
2/17/2026	Schonfeld Strategic Advisors LLC	487,809	$25.35M	0.1%	-64.6%	0.250%
2/17/2026	AQR Capital Management LLC	66,754	$3.47M	0.0%	+338.0%	0.034%
2/17/2026	Cetera Investment Advisers	3,902	$0.20M	0.0%	-4.5%	0.002%
2/17/2026	DF Dent & Co. Inc.	501,558	$26.07M	0.4%	-1.5%	0.257%

Data available starting January 2016

Core & Main, Inc. is a specialty distributor focused on water, wastewater, storm drainage and fire protection products, and related services. The company provides infrastructure solutions to municipalities, private water companies and professional contractors across municipal, non-residential, and residential end markets, nationwide. The company was founded in 1874 and is headquartered in St. Louis, MO.

Today's Range

Now: $47.27

$46.81

$47.86

50 Day Range

MA: $49.33

$44.95

$53.93

52 Week Range

Now: $47.27

$43.96

$67.18

Volume

1,342,147 shs

Average Volume

2,209,228 shs

Market Capitalization

$9.20 billion

P/E Ratio

20.46

Dividend Yield

N/A

Beta

0.93

Who are the company insiders with the largest holdings of Core & Main?: Core & Main's top insider shareholders include:
Stephen O Leclair (CEO)
Stephen O Leclair (Insider)
Mark R Witkowski (CEO)
Mark R Witkowski (CFO)
John R Schaller (EVP)
Bradford A Cowles (President)
John R Schaller (President)
Orvin T Kimbrough (Director)
Mark G Whittenburg (General Counsel)
Laura K Schneider (Insider)
Learn More about top insider investors at Core & Main.
Who are the major institutional investors of Core & Main?: Core & Main's top institutional shareholders include:
Pictet Asset Management Holding SA — 3.35%
First Trust Advisors LP — 3.15%
Janus Henderson Group PLC — 1.74%
Amundi — 1.57%
KBC Group NV — 1.41%
Bessemer Group Inc. — 1.37%
Learn More about top institutional investors of Core & Main stock.
Which institutional investors are selling Core & Main stock?: During the previous quarter, CNM stock was sold by these institutional investors:
Janus Henderson Group PLC
Pictet Asset Management Holding SA
Jennison Associates LLC
Bank of America Corp DE
Swedbank AB
Liontrust Investment Partners LLP
Hsbc Holdings PLC
SG Americas Securities LLC
Within the last year, company insiders that have sold Core & Main company stock include:
Stephen O Leclair (Insider)
Mark R Witkowski (CEO)
John R Schaller (EVP)
Orvin T Kimbrough (Director)
Laura K Schneider (Insider)
Robyn L Bradbury (CFO)
Mark G Whittenburg (General Counsel)
James G Castellano (Director)
Learn More investors selling Core & Main stock.
Which institutional investors are buying Core & Main stock?: In the last quarter, CNM stock was purchased by institutional investors including:
Assenagon Asset Management S.A.
Renaissance Technologies LLC
First Trust Advisors LP
E. Ohman J or Asset Management AB
Edgestream Partners L.P.
Dimensional Fund Advisors LP
Bank of New York Mellon Corp
Walleye Capital LLC