Insider trading

Period: 120 months Stock: NGS Type of trade: Sold × + Add filter Clear all
Views & alerts

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When

Period

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

111 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.

111 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.

111 decisions over 120 months Remove this filter
The trade

Minimum amount

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

111 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.
111 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
111 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.

111 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
6 Mar 2026
Sold on a plan
$1.12M 30,000 at 37.23
14.6%
Planned (10b5-1)
5 Mar 2026
Sold on a plan
$2.63M 70,000 at 37.58
25.4%
Planned (10b5-1)
11 Dec 2025
Sold at will
$335.40K 10,000 at 33.54
3.5%
Not planned
10 Dec 2025
Sold at will
$331.60K 10,000 at 33.16
3.4%
Not planned
4 Dec 2025
Sold at will
$642.40K 20,000 at 32.12
6.3%
Not planned
20 Nov 2025
Sold at will
$313.70K 10,000 at 31.37
3.1%
Not planned
19 Nov 2025
Sold at will
$303.10K 10,000 at 30.31
3.0%
Not planned
17 Nov 2025
Sold on a plan
$310.07K 10,000 at 31.01
2.9%
Planned (10b5-1)
10 Nov 2025
Sold on a plan 2×
$558.09K 18,748 at 29.77
5.1%
Planned (10b5-1)
7 Nov 2025
Sold on a plan 2×
$324.05K 11,152 at 29.06
3.0%
Planned (10b5-1)
6 Nov 2025
Sold on a plan
$2.90K 100 at 29.00
0.0%
Planned (10b5-1)
26 Sep 2025
Sold on a plan
$225.59K 7,915 at 28.50
2.1%
Planned (10b5-1)
25 Sep 2025
Sold on a plan
$21.63K 759 at 28.50
0.2%
Planned (10b5-1)
24 Sep 2025
Sold on a plan
$37.79K 1,326 at 28.50
0.3%
Planned (10b5-1)
23 Sep 2025
Sold on a plan 2×
$320.22K 11,457 at 27.95
2.9%
Planned (10b5-1)
19 Sep 2025
Sold on a plan
$1.73K 63 at 27.50
0.0%
Planned (10b5-1)
18 Sep 2025
Sold on a plan
$45.05K 1,638 at 27.50
0.4%
Planned (10b5-1)
17 Sep 2025
Sold on a plan
$180.25K 6,553 at 27.51
1.6%
Planned (10b5-1)
16 Sep 2025
Sold on a plan
$7.95K 289 at 27.50
0.1%
Planned (10b5-1)
4 Sep 2025
Sold on a plan
$270.02K 10,000 at 27.00
2.4%
Planned (10b5-1)
22 Aug 2025
Sold on a plan 2×
$525.06K 20,000 at 26.25
4.6%
Planned (10b5-1)
15 May 2025
Sold at will
$622.50K 25,000 at 24.90
5.5%
Not planned
21 Jan 2025
Sold on a plan 2×
$558.65K 19,400 at 28.80
4.2%
Planned (10b5-1)
12 Dec 2024
Sold at will
$271.50K 10,000 at 27.15
2.1%
Not planned
25 Nov 2024
Sold on a plan
$17.10K 600 at 28.50
0.1%
Planned (10b5-1)
22 Nov 2024
Sold on a plan
$280.00K 10,000 at 28.00
2.1%
Planned (10b5-1)
21 Nov 2024
Sold on a plan
$1.03M 38,479 at 26.89
7.4%
Planned (10b5-1)
20 Nov 2024
Sold on a plan
$39.55K 1,521 at 26.00
0.3%
Planned (10b5-1)
19 Nov 2024
Sold on a plan
$166.16K 6,516 at 25.50
1.2%
Planned (10b5-1)
18 Nov 2024
Sold on a plan
$87.81K 3,442 at 25.51
0.7%
Planned (10b5-1)
15 Nov 2024
Sold on a plan
$251.11K 10,042 at 25.01
1.9%
Planned (10b5-1)
13 Nov 2024
Sold on a plan
$53.68K 2,191 at 24.50
0.4%
Planned (10b5-1)
12 Nov 2024
Sold on a plan
$115.51K 4,713 at 24.51
0.9%
Planned (10b5-1)
11 Nov 2024
Sold on a plan
$75.85K 3,096 at 24.50
0.6%
Planned (10b5-1)
26 Aug 2024
Sold at will
$69.98K 3,181 at 22.00
0.6%
Not planned
20 Aug 2024
Sold at will
$103.84K 4,690 at 22.14
0.8%
Not planned
1 Dec 2022
Beyer Leslie Ann Director
Sold, plan not stated
$33.15K 3,000 at 11.05
26.9%
7 Jun 2022
Taylor Stephen Charles Chief Executive Officer
Sold, plan not stated
$58.77K 3,918 at 15.00
0.8%
7 Jun 2022
Hazlett James R VP - Technical Services
Sold, plan not stated
$14.58K 972 at 15.00
1.3%
31 May 2022
Hazlett James R VP - Technical Services
Sold, plan not stated
$33.69K 2,405 at 14.01
3.2%
27 May 2022
Hazlett James R VP - Technical Services
Sold, plan not stated
$8.36K 595 at 14.05
0.8%
11 Apr 2022
CHISHOLM JOHN Director
Sold, plan not stated
$5.90K 500 at 11.79
5.4%
1 Apr 2022
CHISHOLM JOHN Director
Sold, plan not stated
$16.02K 1,500 at 10.68
13.9%
30 Mar 2022
CHISHOLM JOHN Director
Sold, plan not stated
$8.13K 700 at 11.61
6.1%
29 Mar 2022
CHISHOLM JOHN Director
Sold, plan not stated
$27.62K 2,300 at 12.01
16.7%
2 Mar 2022
Hazlett James R VP - Technical Services
Sold, plan not stated
$4.20K 300 at 14.00
0.4%
1 Mar 2022
Hazlett James R VP - Technical Services
Sold, plan not stated
$36.11K 2,750 at 13.13
3.3%
6 Oct 2021
Hazlett James R VP - Technical Services
Sold, plan not stated
$33.22K 2,750 at 12.08
3.2%
14 Sep 2021
CHISHOLM JOHN Director
Sold, plan not stated
$69.79K 7,000 at 9.97
33.7%
27 Aug 2021
CHISHOLM JOHN Director
Sold, plan not stated
$24.04K 2,515 at 9.56
10.8%
Showing 1–50 of 111. Page 1 of 3 Older →