Insider trading

Period: 120 months Stock: NOV + 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.

41 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.

41 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.

41 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.

41 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.
41 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
41 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.

41 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
31 Jul 2026
HARRISON DAVID D Director
Sold at will
$184.30K 9,594 at 19.21
7.0%
Not planned
23 Feb 2026
Rovig Joseph W President - Energy Equipment
Sold at will
$3.05M 151,086 at 20.17
35.9%
Not planned
23 Feb 2026
Weinstock Craig L. Sr. VP. & Gen. Counsel
Sold at will 4×
$1.41M 70,000 at 20.08
21.5%
Not planned
21 Nov 2025
Bought 2×
$1.01M 70,000 at 14.46
439%
First buy on file
20 Nov 2024
HARRISON DAVID D Director
Sold at will
$28.72K 1,784 at 16.10
1.6%
Not planned
7 Nov 2024
Rovig Joseph W President - Energy Equipment
Sold at will
$1.20M 73,256 at 16.40
27.7%
Not planned
7 Nov 2024
Novak Christy Lynn VP, Corp. Controller, CAO
Sold at will 2×
$673.25K 40,953 at 16.44
36.9%
Not planned
7 Nov 2024
Weinstock Craig L. Sr. VP. & Gen. Counsel
Sold at will 2×
$501.60K 30,481 at 16.46
12.4%
Not planned
7 Nov 2024
Livingston Scott B. See Remarks
Sold at will 2×
$485.09K 29,410 at 16.49
32.3%
Not planned
22 Feb 2024
Novak Christy Lynn VP, Corp. Controller, CAO
Sold at will
$60.99K 3,500 at 17.43
3.0%
Not planned
28 Feb 2023
MATTSON ERIC L Director
Sold, plan not stated 2×
$452.92K 20,681 at 21.90
30.7%
27 Feb 2023
Novak Christy Lynn VP, Corp. Controller, CAO
Sold, plan not stated 2×
$210.02K 9,607 at 21.86
10.2%
4 Nov 2022
Novak Christy Lynn VP, Corp. Controller, CAO
Sold, plan not stated
$106.01K 4,575 at 23.17
6.7%
1 Nov 2022
Joseph Isaac H. See Remarks
Sold, plan not stated
$56.93K 2,500 at 22.77
1.3%
1 Sep 2022
HARRISON DAVID D Director
Sold, plan not stated
$52.94K 3,112 at 17.01
3.3%
29 Aug 2022
ARMSTRONG GREG L Director
Sold, plan not stated
$197.14K 10,381 at 18.99
11.1%
25 May 2022
MATTSON ERIC L Director
Sold, plan not stated
$188.03K 9,819 at 19.15
12.7%
28 Oct 2021
MATTSON ERIC L Director
Sold, plan not stated
$118.53K 8,157 at 14.53
10.6%
23 Feb 2021
Duff Scott K. VP Cntrlr Chf Acctg Offcr
Sold, plan not stated
$148.10K 10,000 at 14.81
8.9%
18 Mar 2020
Bayardo Jose A Senior VP and CFO
Bought 3×
$70.01K 8,500 at 8.24
3.5%
First buy on file
16 Mar 2020
Bayardo Jose A Senior VP and CFO
Bought
$101.78K 11,500 at 8.85
4.9%
First buy on file
21 Feb 2020
Duff Scott K. VP Cntrlr Chf Acctg Offcr
Sold, plan not stated
$166.22K 7,134 at 23.30
16.7%
12 Feb 2020
MATTSON ERIC L Director
Sold, plan not stated
$239.65K 10,000 at 23.97
15.5%
6 Nov 2019
Duff Scott K. VP Cntrlr Chf Acctg Offcr
Sold, plan not stated
$141.07K 6,000 at 23.51
12.3%
16 Aug 2019
Rovig Joseph W President - Rig Technologies
Sold, plan not stated
$415.90K 22,640 at 18.37
23.5%
6 Aug 2019
MATTSON ERIC L Director
Sold, plan not stated
$99.87K 4,750 at 21.02
6.9%
28 Feb 2019
Duff Scott K. VP Cntrlr Chf Acctg Offcr
Sold, plan not stated
$423.78K 15,125 at 28.02
22.9%
27 Aug 2018
MATTSON ERIC L Director
Sold, plan not stated
$265.80K 5,828 at 45.61
8.7%
24 Aug 2018
MATTSON ERIC L Director
Sold, plan not stated
$238.08K 5,284 at 45.06
7.3%
9 Aug 2018
MATTSON ERIC L Director
Sold, plan not stated
$198.02K 4,338 at 45.65
5.7%
1 Aug 2018
WILLIAMS CLAY C Chairman, President and CEO
Sold, plan not stated
$22.28M 465,116 at 47.91
57.3%
Sold half or more
1 Aug 2018
Weinstock Craig L. Sr. VP. & Gen. Counsel
Sold, plan not stated
$1.19M 25,000 at 47.45
36.9%
30 Jul 2018
Weinstock Craig L. Sr. VP. & Gen. Counsel
Sold, plan not stated
$178.11K 3,709 at 48.02
8.0%
28 Jun 2018
Rovig Joseph W President - Rig Technologies
Sold, plan not stated 2×
$1.29M 30,000 at 42.84
32.6%
27 Jun 2018
Rovig Joseph W President - Rig Technologies
Sold, plan not stated
$2.00M 46,436 at 43.01
42.8%
21 May 2018
Weinstock Craig L. Sr. VP. & Gen. Counsel
Sold, plan not stated
$220.16K 5,000 at 44.03
9.7%
14 May 2018
Duff Scott K. VP Cntrlr Chf Acctg Offcr
Sold, plan not stated 2×
$1.66M 40,459 at 41.02
55.7%
Sold half or more
1 Mar 2018
Duff Scott K. VP Cntrlr Chf Acctg Offcr
Sold, plan not stated
$264.66K 7,421 at 35.66
17.4%
2 Mar 2017
Rovig Joseph W See Remarks
Sold, plan not stated
$2.07M 49,825 at 41.48
54.5%
Sold half or more
1 Mar 2017
Duff Scott K. VP Cntrlr Chf Acctg Offcr
Sold, plan not stated
$195.16K 4,785 at 40.79
16.0%
24 Feb 2017
Duff Scott K. VP Cntrlr Chf Acctg Offcr
Sold, plan not stated
$1.49M 37,369 at 39.87
55.0%
Sold half or more
Showing 1–41 of 41.