Insider trading

Period: 120 months Stock: TENB Role: Directors × + Add filter Clear all
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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.

115 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.

115 decisions over 120 months Remove this filter
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.

115 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.

115 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.
115 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
115 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.

115 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
19 Aug 2026
Zecher Linda Kay Director
Sold at will
$24.67K 690 at 35.76
9.0%
Not planned
18 Aug 2026
Zecher Linda Kay Director
Sold at will
$24.82K 700 at 35.46
8.3%
Not planned
7 Aug 2026
Sold on a plan
$65.37K 1,819 at 35.94
8.1%
Planned (10b5-1)
7 Aug 2026
Zecher Linda Kay Director
Sold at will
$20.08K 550 at 36.50
6.1%
Not planned
4 Aug 2026
Zecher Linda Kay Director
Sold at will
$21.60K 600 at 36.00
6.3%
Not planned
3 Aug 2026
Zecher Linda Kay Director
Sold at will
$49.98K 1,470 at 34.00
13.3%
Not planned
12 Feb 2026
Bought
$99.77K 4,500 at 22.17
38.2%
First buy on file
9 Feb 2026
Bought
$258.00K 12,000 at 21.50
30.2%
First buy on file
15 Dec 2025
SEAWELL A BROOKE Director · indirect
Sold at will
$2.85M 115,000 at 24.82
100%
Sold half or more
9 Sep 2025
SEAWELL A BROOKE Director · indirect
Sold at will
$462.00K 15,000 at 30.80
100%
Sold half or more
4 Sep 2025
SEAWELL A BROOKE Director · indirect
Sold at will
$139.21K 4,622 at 30.12
23.6%
Not planned
11 Mar 2025
Zecher Linda Kay Director
Sold at will
$92.50K 2,500 at 37.00
87.6%
Sold half or more
8 Jan 2025
Sold on a plan
$31.16K 809 at 38.52
8.5%
Planned (10b5-1)
24 May 2024
Sold on a plan
$66.99K 1,560 at 42.94
15.9%
Planned (10b5-1)
23 May 2024
Zecher Linda Kay Director
Sold at will
$102.15K 2,350 at 43.47
45.2%
Not planned
29 Feb 2024
Sold on a plan
$38.63K 809 at 47.75
14.9%
Planned (10b5-1)
9 Feb 2024
SEAWELL A BROOKE Director
Sold at will
$253.66K 4,962 at 51.12
12.7%
Not planned
9 Feb 2024
Zecher Linda Kay Director
Sold at will
$131.95K 2,600 at 50.75
99.9%
Sold half or more
6 Nov 2023
Zecher Linda Kay Director
Sold at will
$53.72K 1,444 at 37.20
35.7%
Not planned
5 Jun 2023
Zecher Linda Kay Director
Sold at will
$105.46K 2,600 at 40.56
39.1%
Not planned
25 May 2023
Sold on a plan
$57.93K 1,496 at 38.72
26.1%
Planned (10b5-1)
27 Apr 2023
Zecher Linda Kay Director
Sold at will
$121.15K 3,320 at 36.49
56.1%
Sold half or more
10 Feb 2023
Zecher Linda Kay Director
Sold, plan not stated
$309.68K 7,000 at 44.24
54.2%
Sold half or more
10 Feb 2023
Sold, plan not stated
$44.12K 997 at 44.25
37.0%
7 Feb 2023
Sold, plan not stated
$254.88K 6,000 at 42.48
51.7%
Sold half or more
3 Jan 2023
Sold, plan not stated
$309.60 8 at 38.70
0.0%
3 Oct 2022
Sold, plan not stated
$671.19K 19,166 at 35.02
42.5%
15 Aug 2022
Kennelly Jerry M Director
Sold, plan not stated 2×
$441.11K 10,000 at 44.11
46.2%
10 Aug 2022
Zecher Linda Kay Director
Sold, plan not stated
$100.04K 2,223 at 45.00
14.7%
1 Jul 2022
Sold, plan not stated 2×
$877.28K 19,166 at 45.77
42.5%
7 Jun 2022
Zecher Linda Kay Director
Sold, plan not stated
$100.10K 1,925 at 52.00
17.0%
16 May 2022
Kennelly Jerry M Director
Sold, plan not stated 2×
$467.01K 10,000 at 46.70
60.0%
Sold half or more
1 Apr 2022
Sold, plan not stated 2×
$1.11M 19,166 at 57.83
47.8%
15 Feb 2022
Kennelly Jerry M Director
Sold, plan not stated 2×
$503.79K 10,000 at 50.38
60.0%
Sold half or more
3 Jan 2022
Sold, plan not stated 2×
$1.04M 19,166 at 54.11
47.8%
15 Nov 2021
Kennelly Jerry M Director
Sold, plan not stated 2×
$539.31K 10,000 at 53.93
60.0%
Sold half or more
1 Oct 2021
Sold, plan not stated
$888.54K 19,166 at 46.36
47.8%
15 Sep 2021
Zecher Linda Kay Director
Sold, plan not stated
$100.00K 2,124 at 47.08
25.1%
1 Jul 2021
Sold, plan not stated
$787.72K 19,166 at 41.10
47.8%
16 Jun 2021
Sold, plan not stated
$916.70K 21,279 at 43.08
100%
Sold half or more
15 Jun 2021
Sold, plan not stated
$2.40M 55,388 at 43.30
100%
Sold half or more
8 Jun 2021
SEAWELL A BROOKE Director
Sold, plan not stated
$285.71K 6,677 at 42.79
18.2%
8 Jun 2021
Zecher Linda Kay Director
Sold, plan not stated
$171.28K 4,000 at 42.82
59.9%
Sold half or more
28 May 2021
Sold, plan not stated
$280.43K 6,677 at 42.00
100%
Sold half or more
30 Apr 2021
Li Ping Director · indirect
Sold, plan not stated 2×
$2.85M 75,000 at 38.06
24.8%
1 Apr 2021
Sold, plan not stated
$713.55K 19,166 at 37.23
57.4%
Sold half or more
16 Feb 2021
Kennelly Jerry M Director
Sold, plan not stated 3×
$719.95K 16,000 at 45.00
100%
Sold half or more
5 Feb 2021
Li Ping Director · indirect
Sold, plan not stated 3×
$3.54M 75,000 at 47.18
19.8%
4 Jan 2021
Sold, plan not stated
$1.00M 19,166 at 52.34
57.4%
Sold half or more
18 Dec 2020
Sold, plan not stated 3×
$660.43K 14,239 at 46.38
100%
Sold half or more
Showing 1–50 of 115. Page 1 of 3 Older →