Insider trading

Period: 120 months Stock: ATKR + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

153 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

153 decisions over 120 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

153 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

153 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
153 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
153 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

153 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
10 Aug 2026
Lamps Mark F. Pres. Safety & Infrastructure
Sold at will
$28.13K 300 at 93.75
0.8%
Not planned
8 May 2026
Sold at will
$242.82K 3,299 at 73.61
16.2%
Not planned
8 May 2026
Kershaw Justin A Director
Sold at will
$206.21K 2,799 at 73.67
13.1%
Not planned
17 Feb 2026
Lamps Mark F. Pres. Safety & Infrastructure
Sold on a plan
$65.78K 1,000 at 65.78
2.7%
Planned (10b5-1)
17 Nov 2025
Lamps Mark F. Pres. Safety & Infrastructure
Sold on a plan
$64.75K 1,000 at 64.75
3.2%
Planned (10b5-1)
15 Aug 2025
Lamps Mark F. Pres. Safety & Infrastructure
Sold on a plan
$59.37K 1,000 at 59.37
3.0%
Planned (10b5-1)
9 May 2025
Lamps Mark F. Pres. Safety & Infrastructure
Sold on a plan
$69.16K 1,000 at 69.16
3.0%
Planned (10b5-1)
10 Feb 2025
Lamps Mark F. Pres. Safety & Infrastructure
Sold on a plan
$32.50K 500 at 65.00
1.5%
Planned (10b5-1)
3 Dec 2024
Isbell Jeri L Director
Sold at will
$315.27K 3,353 at 94.03
11.6%
Not planned
27 Nov 2024
Waltz William E Jr. President and CEO · indirect
Sold at will
$5.47M 59,019 at 92.64
82.4%
Sold half or more
26 Nov 2024
Waltz William E Jr. President and CEO · indirect
Sold at will
$5.82M 61,079 at 95.21
46.0%
Not planned
26 Nov 2024
Kelly Daniel S VP, General Counsel and Sec.
Sold at will
$1.25M 13,071 at 95.74
32.2%
Not planned
11 Nov 2024
Lamps Mark F. Pres. Safety & Infrastructure
Sold on a plan
$48.28K 500 at 96.55
1.8%
Planned (10b5-1)
12 Aug 2024
Lamps Mark F. Pres. Safety & Infrastructure
Sold on a plan
$47.74K 500 at 95.47
1.7%
Planned (10b5-1)
3 Jun 2024
Sold at will
$91.78K 599 at 153.23
3.7%
Not planned
22 May 2024
Zeffiro A Mark Director
Sold at will
$308.22K 2,000 at 154.11
9.4%
Not planned
14 May 2024
Lamps Mark F. Pres. Safety & Infrastructure
Sold on a plan
$78.84K 500 at 157.67
1.7%
Planned (10b5-1)
14 Mar 2024
Lowe LeAngela W. VP, Chief HR Officer
Sold at will
$1.14M 6,500 at 176.07
20.3%
Not planned
13 Mar 2024
Kershaw Justin A Director
Sold at will
$188.77K 1,099 at 171.77
6.2%
Not planned
4 Mar 2024
Waltz William E Jr. President and CEO
Sold at will
$8.69M 50,000 at 173.85
37.4%
Not planned
4 Mar 2024
Kelly Daniel S VP, General Counsel and Sec.
Sold on a plan
$2.75M 15,815 at 173.59
31.2%
Planned (10b5-1)
4 Mar 2024
Johnson David Paul Vice President and CFO
Sold at will
$2.20M 12,701 at 172.84
28.1%
Not planned
4 Mar 2024
Pregenzer John W President, Electrical
Sold at will
$705.36K 4,044 at 174.42
11.7%
Not planned
1 Mar 2024
Kelly Daniel S VP, General Counsel and Sec.
Sold on a plan
$1.50M 8,685 at 173.07
19.9%
Planned (10b5-1)
26 Feb 2024
Waltz William E Jr. President and CEO
Sold at will
$6.91M 43,072 at 160.48
34.0%
Not planned
26 Feb 2024
Pregenzer John W President, Electrical
Sold at will
$1.04M 6,548 at 158.49
17.7%
Not planned
14 Dec 2023
Waltz William E Jr. President and CEO
Sold on a plan
$12.00M 79,600 at 150.75
38.6%
Planned (10b5-1)
22 Nov 2023
Lamps Mark F. Pres. Safety & Infrastructure
Sold on a plan
$654.35K 5,008 at 130.66
14.7%
Planned (10b5-1)
20 Nov 2023
Lamps Mark F. Pres. Safety & Infrastructure
Sold on a plan
$18.15K 138 at 131.51
0.5%
Planned (10b5-1)
18 Jul 2023
Lowe LeAngela W. VP, Global Human Resources
Sold on a plan
$480.28K 3,000 at 160.09
10.5%
Planned (10b5-1)
27 Jun 2023
MUSE SCOTT H Director
Sold on a plan
$181.65K 1,211 at 150.00
4.4%
Planned (10b5-1)
24 May 2023
Zeffiro A Mark Director
Sold at will
$89.11K 750 at 118.82
3.5%
Not planned
9 Mar 2023
Johnson David Paul Vice President and CFO
Sold, plan not stated
$1.50M 10,000 at 149.79
24.9%
1 Mar 2023
Pregenzer John W President, Electrical
Sold, plan not stated
$713.10K 4,754 at 150.00
15.3%
3 Feb 2023
Kershaw Justin A Director
Sold, plan not stated
$572.60K 4,126 at 138.78
19.7%
3 Feb 2023
Lamps Mark F. Pres. Safety & Infrastructure
Sold, plan not stated
$358.98K 2,480 at 144.75
9.6%
3 Feb 2023
Sold, plan not stated
$207.37K 1,491 at 139.08
8.9%
3 Feb 2023
Kelly Daniel S VP, General Counsel and Sec.
Sold, plan not stated
$12.53K 88 at 142.35
0.4%
1 Feb 2023
Waltz William E Jr. President and CEO
Sold, plan not stated
$4.21M 30,000 at 140.26
30.0%
1 Dec 2022
Kelly Daniel S VP, General Counsel and Sec.
Sold, plan not stated
$1.42M 11,557 at 123.09
32.3%
30 Nov 2022
Kelly Daniel S VP, General Counsel and Sec.
Sold, plan not stated
$287.18K 2,343 at 122.57
6.1%
23 Nov 2022
Lamps Mark F. Pres. Safety & Infrastructure
Sold, plan not stated
$341.96K 2,874 at 118.99
11.0%
23 Nov 2022
Kelly Daniel S VP, General Counsel and Sec.
Sold, plan not stated
$12.25K 100 at 122.50
0.3%
22 Nov 2022
Lamps Mark F. Pres. Safety & Infrastructure
Sold, plan not stated
$51.27K 433 at 118.40
1.6%
6 Jun 2022
Waltz William E Jr. President and CEO
Sold, plan not stated
$2.37M 20,000 at 118.65
33.9%
6 May 2022
Kelly Daniel S VP, General Counsel and Sec.
Sold, plan not stated
$1.73M 15,000 at 115.22
32.2%
6 May 2022
Pregenzer John W President, Electrical
Sold, plan not stated
$317.63K 2,762 at 115.00
9.6%
6 May 2022
Lamps Mark F. Pres. Safety & Infrastructure
Sold, plan not stated
$96.03K 845 at 113.64
3.9%
5 May 2022
Lowe LeAngela W. VP, Global Human Resources
Sold, plan not stated
$1.07M 9,373 at 114.10
31.2%
3 May 2022
Kelly Daniel S VP, General Counsel and Sec.
Sold, plan not stated
$1.13M 10,000 at 113.25
17.7%
Showing 1–50 of 153. Page 1 of 4 Older →