InsiderClue

Every filing, one decision per row.

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One row for every decision an insider filed. Open-market buying and selling only. Vesting, grants and the shares withheld to pay the tax on them are not decisions.

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Companies 1/25
CNM
Result 49 decisions over 120 months
Reset filters
Direction ?
Both49 Bought0 Sold49
Sort by ?
Most recent Largest amount Share of holding
Window ?
1 mo 12 mo 120 mo
Plan ?
Any Discretionary Scheduled (10b5-1) Not stated
Minimum amount ?
Any $100K $1M $10M $100M $500M
Share of their own holding ?
What the chief executive holds ?
Company: CNM Minimum: $1M
Company
Date
Insider
Role
Action ?
Shares
Amount
Of holding
CNM Core & Main, Inc.
18 Aug 2025
Witkowski Mark R
Chief Executive Officer
Sold on a plan
100,000
$6.41M
73.6%
CNM Core & Main, Inc.
18 Jul 2025
Castellano James G
Director indirect
Sold on a plan
43,994
$2.73M
100%
CNM Core & Main, Inc.
18 Jul 2025
Kimbrough Orvin T
Director
Sold on a plan
23,962
$1.48M
63.2%
CNM Core & Main, Inc.
17 Jul 2025
Witkowski Mark R
Chief Executive Officer
Sold on a plan 2×
100,000
$6.13M
73.6%
CNM Core & Main, Inc.
7 Jul 2025
LeClair Stephen O
Executive Chair
Sold at will
44,972
$2.78M
38.9%
CNM Core & Main, Inc.
3 Jul 2025
LeClair Stephen O
Executive Chair
Sold at will
80,028
$4.98M
53.1%
CNM Core & Main, Inc.
1 Jul 2025
Bradbury Robyn L
Chief Financial Officer
Sold on a plan 3×
25,000
$1.51M
74.5%
CNM Core & Main, Inc.
9 Jun 2025
Whittenburg Mark G
General Counsel and Secretary
Sold on a plan
49,100
$2.95M
83.5%
CNM Core & Main, Inc.
3 Jun 2025
Schneider Laura K
Chief Human Resources Officer
Sold on a plan
45,695
$2.57M
78.0%
CNM Core & Main, Inc.
29 Apr 2025
Stephens John Weldon
Chief Accounting Officer
Sold on a plan
31,750
$1.68M
88.5%
CNM Core & Main, Inc.
2 Apr 2025
Stephens John Weldon
Chief Accounting Officer
Sold on a plan
41,963
$2.12M
91.1%
CNM Core & Main, Inc.
10 Mar 2025
Schaller John R
Executive Vice President
Sold on a plan
21,868
$1.02M
57.1%
CNM Core & Main, Inc.
10 Feb 2025
Cowles Bradford A
President
Sold on a plan
25,000
$1.36M
61.0%
CNM Core & Main, Inc.
16 Jan 2025
Whittenburg Mark G
General Counsel and Secretary
Sold on a plan
48,026
$2.65M
86.2%
CNM Core & Main, Inc.
10 Jan 2025
Schaller John R
Executive Vice President
Sold on a plan 3×
60,452
$3.06M
77.2%
CNM Core & Main, Inc.
10 Jan 2025
Whittenburg Mark G
General Counsel and Secretary
Sold on a plan
50,000
$2.52M
86.7%
CNM Core & Main, Inc.
3 Dec 2024
LeClair Stephen O
Chief Executive Officer
Sold on a plan
200,000
$10.98M
68.4%
CNM Core & Main, Inc.
3 Dec 2024
Cowles Bradford A
President
Sold on a plan
50,000
$2.75M
73.1%
CNM Core & Main, Inc.
3 Dec 2024
Giles Jeffrey D
EVP, Corporate Department
Sold on a plan
25,000
$1.37M
68.3%
CNM Core & Main, Inc.
16 Jul 2024
Gipson Dennis G
Director indirect
Sold on a plan
25,000
$1.33M
100%
CNM Core & Main, Inc.
8 May 2024
Witkowski Mark R
Chief Financial Officer
Sold on a plan
50,000
$2.98M
67.7%
CNM Core & Main, Inc.
19 Apr 2024
Whittenburg Mark G
General Counsel and Secretary
Sold on a plan
50,000
$2.70M
79.4%
CNM Core & Main, Inc.
8 Apr 2024
Witkowski Mark R
Chief Financial Officer
Sold on a plan
50,000
$2.93M
67.7%
CNM Core & Main, Inc.
22 Mar 2024
Whittenburg Mark G
General Counsel and Secretary
Sold at will
50,000
$2.90M
79.4%
CNM Core & Main, Inc.
7 Mar 2024
Stephens John Weldon
VP, Corp. Controller
Sold on a plan
43,900
$2.20M
92.7%
CNM Core & Main, Inc.
12 Feb 2024
LeClair Stephen O
Chief Executive Officer
Sold on a plan
150,000
$6.62M
67.1%
CNM Core & Main, Inc.
12 Feb 2024
Schneider Laura K
Chief Human Resources Officer
Sold on a plan
100,000
$4.41M
91.2%
CNM Core & Main, Inc.
12 Feb 2024
Giles Jeffrey D
VP, Corporate Department
Sold on a plan
40,000
$1.77M
83.0%
CNM Core & Main, Inc.
25 Jan 2024
CD&R Investment Associates X, Ltd.
10% owner indirect
Sold at will 7×
22,907,815
$938.88M
100%
CNM Core & Main, Inc.
16 Jan 2024
Schaller John R
President indirect
Sold on a plan
50,000
$2.05M
100%
CNM Core & Main, Inc.
11 Jan 2024
LeClair Stephen O
Chief Executive Officer
Sold on a plan
150,000
$6.10M
67.1%
CNM Core & Main, Inc.
11 Jan 2024
Schneider Laura K
Chief Human Resources Officer
Sold on a plan
100,000
$4.06M
91.2%
CNM Core & Main, Inc.
11 Jan 2024
Giles Jeffrey D
VP, Corporate Department
Sold on a plan
40,000
$1.63M
83.0%
CNM Core & Main, Inc.
10 Jan 2024
CD&R Investment Associates X, Ltd.
10% owner indirect
Sold at will 7×
22,675,728
$864.40M
100%
CNM Core & Main, Inc.
11 Dec 2023
CD&R Investment Associates X, Ltd.
10% owner indirect
Sold at will 7×
20,375,728
$724.15M
100%
CNM Core & Main, Inc.
15 Nov 2023
CD&R Investment Associates X, Ltd.
10% owner indirect
Sold at will 4×
2,850,000
$86.75M
100%
CNM Core & Main, Inc.
15 Nov 2023
Witkowski Mark R
Chief Financial Officer
Sold on a plan
40,000
$1.36M
67.5%
CNM Core & Main, Inc.
9 Nov 2023
CD&R Investment Associates X, Ltd.
10% owner indirect
Sold at will 7×
22,125,728
$673.51M
100%
CNM Core & Main, Inc.
12 Oct 2023
Cowles Bradford A
President
Sold on a plan
50,000
$1.60M
77.3%
CNM Core & Main, Inc.
25 Sep 2023
Witkowski Mark R
Chief Financial Officer
Sold on a plan
40,000
$1.14M
67.5%
CNM Core & Main, Inc.
19 Sep 2023
CD&R Investment Associates X, Ltd.
10% owner indirect
Sold at will 7×
21,125,728
$612.96M
100%
CNM Core & Main, Inc.
27 Jun 2023
Schneider Laura K
Chief Human Resources Officer
Sold on a plan
49,904
$1.50M
83.8%
CNM Core & Main, Inc.
12 Jun 2023
CD&R Investment Associates X, Ltd.
10% owner indirect
Sold at will 7×
17,125,728
$483.20M
100%
CNM Core & Main, Inc.
7 Jun 2023
LeClair Stephen O
Chief Executive Officer
Sold on a plan
35,712
$1.03M
32.6%
CNM Core & Main, Inc.
6 Jun 2023
Schneider Laura K
Chief Human Resources Officer
Sold on a plan
50,000
$1.41M
83.8%
CNM Core & Main, Inc.
14 Apr 2023
CD&R Investment Associates X, Ltd.
10% owner indirect
Sold at will 7×
14,377,183
$318.47M
100%
CNM Core & Main, Inc.
3 Mar 2023
Schneider Laura K
Chief Human Resources Officer
Sold, plan not stated
66,763
$1.60M
93.2%
CNM Core & Main, Inc.
19 Sep 2022
CD&R Investment Associates X, Ltd.
10% owner indirect
Sold, plan not stated 4×
11,000,000
$258.87M
100%
CNM Core & Main, Inc.
10 Jan 2022
CD&R Investment Associates X, Ltd.
10% owner indirect
Sold, plan not stated 4×
20,000,000
$502.32M
100%
Showing 1–49 of 49.