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Core & Main, Inc.

CNM
Exchange
NYSE
Industry
Wholesale-Durable Goods, NEC
SEC CIK
0001856525

In the last 90 days, Core & Main, Inc. insiders filed 1 open-market purchase and 0 sales; 454 institutions reported holding it in 13F filings for Q2 2026, worth $9.66B in total; Soros Fund Management is the only superinvestor holding it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Core & Main, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
1 filing
1 insider, $95.1K in total
Open-market sells
0 filings
Insiders trading
1
Net value
+$95.1K
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Core & Main, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Core & Main, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Harper Carla DSenior VP, Human Resources13,064Aug 5, 20264
Huebert Michael G.President24,036Jul 23, 20263
Hope James DDirector11,805Jul 8, 20263
Mazzarella Kathleen MDirector16,757Jun 24, 20261
Newman MargaretDirector16,757Jun 24, 20261
Hardwick M SusanDirector3,379Jun 24, 20262
Buck Robert MDirector15,849Jun 24, 20261
Amirthalingam BhavaniDirector17,955Jun 24, 20261
Gipson Dennis GDirector16,757Jun 24, 20261
Castellano James GDirector7,437Jun 24, 20261
Kimbrough Orvin TDirector16,757Jun 24, 20261
Bradbury Robyn LChief Financial Officer12,500Apr 21, 20263
Cowles Bradford APresident25,491Mar 13, 20262
Giles Jeffrey DEVP, Corporate Development9,681Mar 13, 20262
Whittenburg Mark GGeneral Counsel and Secretary8,525Mar 13, 20263
Witkowski Mark RChief Executive Officer51,119Mar 13, 20262
Stephens John WeldonChief Accounting Officer17,374Mar 13, 20262
LeClair Stephen OExecutive Chair66,136Mar 11, 20261
Schneider Laura KChief Human Resources Officer12,873Jun 5, 20250
Schaller John RExecutive Vice President19,689May 30, 20250
CD&R Investment Associates X, Ltd.10% Owner0IndirectJan 25, 20240
CD&R Waterworks Holdings, L.P.10% Owner0IndirectJan 25, 20240
CD&R Waterworks Holdings GP, Ltd.10% Owner0IndirectJan 25, 20240
CD&R Fund X-A Waterworks B, L.P.10% Owner0IndirectJan 25, 20240
CD&R Fund X Waterworks B1, L.P.10% Owner0IndirectJan 25, 20240
CD&R Fund X Advisor Waterworks B, L.P.10% Owner0IndirectJan 25, 20240
CD&R Waterworks Holdings, LLC10% Owner0IndirectJan 25, 20240
Sleeper Nathan KDirector0Jan 11, 20240
Core & Main Management Feeder, LLC10% Owner0IndirectJan 12, 20220

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Jan 12, 2022 (view filing)6:01 PM ETJan 102 daysCore & Main Management Feeder, LLC and 7 others10% OwnerSSaleClass A Common Stock−20.0M$25.12−$502.3M−100.0%0 after4 lots
May 18, 2022 (view filing)May 16-172 daysGiles Jeffrey DVP, Corporate DepartmentSSaleClass A Common Stock−10.0K$22.09−$220.9K−70.7%4.15K after2 lots
Jun 1, 2022 (view filing)May 275 daysGiles Jeffrey DVP, Corporate DepartmentSSaleClass A Common Stock−30.0K$25.04−$751.2K−87.9%4.15K after
Aug 18, 2022 (view filing)Aug 16-182 daysLeClair Stephen OChief Executive OfficerSSaleClass A Common Stock−40.0K$24.58−$983.4K−52.8%35.7K after2 lots
Aug 18, 2022 (view filing)Aug 16-182 daysWhittenburg Mark GGeneral Counsel and SecretarySSaleClass A Common Stock−11.5K$24.79−$284.4K−68.5%5.29K after2 lots
Aug 29, 2022 (view filing)Aug 254 daysSchneider Laura KChief Human Resources OfficerSSaleClass A Common Stock−33.3K$25.08−$836.0K−87.3%4.87K after
Sep 13, 2022 (view filing)Sep 94 daysWhittenburg Mark GGeneral Counsel and SecretarySSaleClass A Common Stock−19.7K$24.78−$488.9K−78.9%5.29K after
Sep 21, 2022 (view filing)6:06 PM ETSep 192 daysCD&R Investment Associates X, Ltd. and 6 others10% OwnerSSaleClass A Common Stock−11.0M$23.53−$258.9M−100.0%0 after4 lots
Feb 22, 2023 (view filing)Feb 175 daysWhittenburg Mark GGeneral Counsel and SecretarySSaleClass A Common Stock−6.41K$23.06−$147.8K−54.8%5.29K after
Feb 28, 2023 (view filing)Feb 244 daysWhittenburg Mark GGeneral Counsel and SecretarySSaleClass A Common Stock−24.8K$23.04−$571.2K−82.4%5.29K after
Mar 7, 2023 (view filing)Mar 34 daysSchneider Laura KChief Human Resources OfficerSSaleClass A Common Stock−66.8K$24.03−$1.60M−93.2%4.87K after
Mar 7, 2023 (view filing)Mar 34 daysWhittenburg Mark GGeneral Counsel and SecretarySSaleClass A Common Stock−31.2K$24.02−$749.5K−85.5%5.29K after
Apr 14, 2023 (view filing)5:20 PM ETApr 14Same dayCD&R Investment Associates X, Ltd. and 6 others10% OwnerSSaleClass A Common Stock−14.4M$22.15−$318.5M−66.6%7.22M after7 lots
Apr 14, 2023 (view filing)5:20 PM ETApr 14Same dayCD&R Investment Associates X, Ltd. and 6 others10% OwnerSSaleClass A Common Stock−5.62M$22.15−$124.6M–52.8M afterDerivative
Apr 17, 2023 (view filing)Apr 134 daysKimbrough Orvin TDirectorSSaleClass A Common Stock−10.0K$25.01−$250.1K−65.0%5.39K after10b5-1
Apr 17, 2023 (view filing)Apr 134 daysLeClair Stephen OChief Executive OfficerSSaleClass A Common Stock−40.0K$24.91−$996.4K−35.2%73.7K after10b5-1
Apr 17, 2023 (view filing)Apr 134 daysStephens John WeldonVP, Corp. ControllerSSaleClass A Common Stock−25.0K$25.03−$625.8K−87.8%3.47K after10b5-1
Apr 17, 2023 (view filing)Apr 134 daysWhittenburg Mark GGeneral Counsel and SecretarySSaleClass A Common Stock−31.2K$25.06−$782.0K−74.8%10.5K after10b5-1
Apr 26, 2023 (view filing)Apr 242 daysCowles Bradford APresidentSSaleClass A Common Stock−14.7K$26.01−$382.7K−50.1%14.7K after10b5-1
Apr 26, 2023 (view filing)Apr 242 daysGiles Jeffrey DVP, Corporate DepartmentSSaleClass A Common Stock−18.8K$26.01−$489.7K−69.6%8.22K after
Apr 26, 2023 (view filing)Apr 242 daysSchneider Laura KChief Human Resources OfficerSSaleClass A Common Stock−17.4K$26.01−$452.6K−64.3%9.67K after10b5-1
May 1, 2023 (view filing)Apr 274 daysGiles Jeffrey DVP, Corporate DepartmentSSaleClass A Common Stock−31.2K$26.01−$810.9K−79.1%8.22K after10b5-1
May 1, 2023 (view filing)Apr 274 daysSchneider Laura KChief Human Resources OfficerSSaleClass A Common Stock−32.6K$26.01−$847.9K−77.1%9.67K after10b5-1
May 3, 2023 (view filing)May 1-32 daysCowles Bradford APresidentSSaleClass A Common Stock−35.4K$26.90−$952.1K−70.7%14.7K after2 lots10b5-1
May 4, 2023 (view filing)May 22 daysStephens John WeldonVP, Corp. ControllerSSaleClass A Common Stock−12.5K$26.53−$331.6K−78.3%3.47K after10b5-1
May 5, 2023 (view filing)May 32 daysKimbrough Orvin TDirectorSSaleClass A Common Stock−10.0K$27.03−$270.3K−65.0%5.39K after10b5-1
May 22, 2023 (view filing)May 184 daysGiles Jeffrey DVP, Corporate DepartmentSSaleClass A Common Stock−30.0K$27.31−$819.2K−78.5%8.22K after10b5-1
May 22, 2023 (view filing)May 184 daysCowles Bradford APresidentSSaleClass A Common Stock−25.0K$27.31−$682.8K−63.0%14.7K after10b5-1
Jun 8, 2023 (view filing)Jun 62 daysCowles Bradford APresidentSSaleClass A Common Stock−24.9K$28.10−$699.4K−62.9%14.7K after10b5-1
Jun 8, 2023 (view filing)Jun 6-72 daysLeClair Stephen OChief Executive OfficerSSaleClass A Common Stock−40.0K$28.77−$1.15M−35.2%73.7K after2 lots10b5-1
Jun 8, 2023 (view filing)Jun 62 daysSchneider Laura KChief Human Resources OfficerSSaleClass A Common Stock−50.0K$28.28−$1.41M−83.8%9.67K after10b5-1
Jun 12, 2023 (view filing)4:30 PM ETJun 12Same dayCD&R Investment Associates X, Ltd. and 6 others10% OwnerSSaleClass A Common Stock−17.1M$28.22−$483.2M−73.3%6.25M after7 lots
Jun 12, 2023 (view filing)4:30 PM ETJun 12Same dayCD&R Investment Associates X, Ltd. and 6 others10% OwnerSSaleClass A Common Stock−1.87M$28.22−$52.9M–45.7M afterDerivative
Jun 29, 2023 (view filing)Jun 272 daysSchneider Laura KChief Human Resources OfficerSSaleClass A Common Stock−49.9K$30.03−$1.50M−83.8%9.67K after10b5-1
Jul 17, 2023 (view filing)Jul 134 daysSchaller John RPresidentSSaleClass A Common Stock−25.0K$31.96−$799.0K−100.0%0 after10b5-1
Aug 31, 2023 (view filing)Aug 292 daysSchaller John RPresidentSSaleClass A Common Stock−25.0K$32.55−$813.8K−100.0%0 after10b5-1
Sep 19, 2023 (view filing)4:19 PM ETSep 19Same dayCD&R Investment Associates X, Ltd. and 6 others10% OwnerSSaleClass A Common Stock−21.1M$29.02−$613.0M−80.7%5.07M after7 lots
Sep 19, 2023 (view filing)4:19 PM ETSep 19Same dayCD&R Investment Associates X, Ltd. and 6 others10% OwnerSSaleClass A Common Stock−1.87M$29.02−$54.4M–37.0M afterDerivative
Sep 27, 2023 (view filing)Sep 252 daysWitkowski Mark RChief Financial OfficerSSaleClass A Common Stock−40.0K$28.44−$1.14M−67.5%19.2K after10b5-1
Sep 27, 2023 (view filing)Sep 252 daysCastellano James GDirectorSSaleClass A Common Stock−12.5K$28.35−$354.4K−100.0%0 after10b5-1
Oct 6, 2023 (view filing)Oct 42 daysWitkowski Mark RChief Financial OfficerSSaleClass A Common Stock−20.0K$30.02−$600.4K−51.0%19.2K after10b5-1
Oct 12, 2023 (view filing)Oct 10-112 daysStephens John WeldonVP, Corp. ControllerSSaleClass A Common Stock−12.5K$31.04−$388.0K−78.3%3.47K after2 lots10b5-1
Oct 16, 2023 (view filing)Oct 124 daysCowles Bradford APresidentSSaleClass A Common Stock−50.0K$31.94−$1.60M−77.3%14.7K after10b5-1
Nov 1, 2023 (view filing)Oct 30-312 daysCastellano James GDirectorSSaleClass A Common Stock−12.5K$30.02−$375.3K−100.0%0 after2 lots10b5-1
Nov 9, 2023 (view filing)4:33 PM ETNov 9Same dayCD&R Investment Associates X, Ltd. and 6 others10% OwnerSSaleClass A Common Stock−22.1M$30.44−$673.5M−85.2%3.84M after7 lots
Nov 9, 2023 (view filing)4:33 PM ETNov 9Same dayCD&R Investment Associates X, Ltd. and 6 others10% OwnerSSaleClass A Common Stock−1.87M$30.44−$57.1M–28.0M afterDerivative
Nov 13, 2023 (view filing)Nov 94 daysWitkowski Mark RChief Financial OfficerSSaleClass A Common Stock−20.0K$32.10−$642.0K−51.0%19.2K after10b5-1
Nov 15, 2023 (view filing)4:24 PM ETNov 15Same dayCD&R Investment Associates X, Ltd. and 6 others10% OwnerSSaleClass A Common Stock−2.85M$30.44−$86.8M−100.0%0 after4 lots
Nov 16, 2023 (view filing)Nov 14-152 daysCowles Bradford APresidentSSaleClass A Common Stock−50.0K$33.53−$1.68M−77.3%14.7K after2 lots10b5-1
Nov 17, 2023 (view filing)Nov 152 daysStephens John WeldonVP, Corp. ControllerSSaleClass A Common Stock−12.5K$33.56−$419.5K−78.3%3.47K after10b5-1