Insider trading

Period: 120 months Stock: TENB Minimum amount: $100K × + 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.

349 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.

349 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.

349 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.

349 decisions over 120 months Remove this filter
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.
349 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
349 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.

349 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
4 May 2026
Brown Matthew Charles Chief Financial Officer
Bought
$258.48K 12,000 at 21.54
64.7%
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
26 Aug 2025
Vintz Stephen A Co-Chief Executive Officer
Sold at will
$103.37K 3,464 at 29.84
0.9%
Not planned
25 Aug 2025
Vintz Stephen A Co-Chief Executive Officer
Sold at will
$883.18K 29,196 at 30.25
7.5%
Not planned
25 Aug 2025
Thurmond Mark C. Co-Chief Executive Officer
Sold at will
$862.13K 28,500 at 30.25
21.8%
Not planned
27 May 2025
Vintz Stephen A Co-Chief Executive Officer
Sold at will
$109.88K 3,386 at 32.45
1.0%
Not planned
23 May 2025
Vintz Stephen A Co-Chief Executive Officer
Sold at will
$207.84K 6,499 at 31.98
1.9%
Not planned
23 May 2025
Thurmond Mark C. Co-Chief Executive Officer
Sold at will
$178.35K 5,577 at 31.98
6.9%
Not planned
28 Feb 2025
Anschutz Barron Principal Accounting Officer
Sold at will
$165.58K 4,405 at 37.59
7.6%
Not planned
27 Feb 2025
Vintz Stephen A Co-CEO,Chief Financial Officer
Sold at will
$254.95K 6,681 at 38.16
2.1%
Not planned
27 Feb 2025
Thurmond Mark C. Co-CEO,Chief Operating Officer
Sold at will
$228.35K 5,984 at 38.16
8.6%
Not planned
26 Feb 2025
Vintz Stephen A Co-CEO,Chief Financial Officer
Sold at will
$239.99K 6,284 at 38.19
1.9%
Not planned
26 Feb 2025
Thurmond Mark C. Co-CEO,Chief Operating Officer
Sold at will
$186.29K 4,878 at 38.19
6.6%
Not planned
25 Feb 2025
Vintz Stephen A Co-CEO,Chief Financial Officer
Sold at will
$175.12K 4,551 at 38.48
1.4%
Not planned
25 Feb 2025
Thurmond Mark C. Co-CEO,Chief Operating Officer
Sold at will
$138.76K 3,606 at 38.48
4.6%
Not planned
26 Nov 2024
Yoran Amit President, CEO and Chairman
Sold at will
$244.85K 5,753 at 42.56
8.9%
Not planned
26 Nov 2024
Vintz Stephen A Chief Financial Officer
Sold at will
$147.26K 3,460 at 42.56
1.2%
Not planned
26 Nov 2024
Thurmond Mark C. Chief Operating Officer
Sold on a plan 2×
$145.73K 3,423 at 42.57
8.1%
Planned (10b5-1)
25 Nov 2024
Yoran Amit President, CEO and Chairman
Sold at will
$226.22K 5,293 at 42.74
9.3%
Not planned
25 Nov 2024
Vintz Stephen A Chief Financial Officer
Sold at will
$135.91K 3,180 at 42.74
1.1%
Not planned
25 Nov 2024
Thurmond Mark C. Chief Operating Officer
Sold at will
$100.14K 2,343 at 42.74
5.9%
Not planned
19 Nov 2024
Yoran Amit President, CEO and Chairman
Sold at will
$196.60K 4,828 at 40.72
9.7%
Not planned
19 Nov 2024
Vintz Stephen A Chief Financial Officer
Sold at will
$114.06K 2,801 at 40.72
1.0%
Not planned
26 Aug 2024
Yoran Amit President, CEO and Chairman
Sold at will
$236.85K 5,673 at 41.75
12.6%
Not planned
26 Aug 2024
Vintz Stephen A Chief Financial Officer
Sold at will
$142.49K 3,413 at 41.75
1.2%
Not planned
26 Aug 2024
Thurmond Mark C. Chief Operating Officer
Sold on a plan 2×
$140.92K 3,383 at 41.66
9.0%
Planned (10b5-1)
23 Aug 2024
Yoran Amit President, CEO and Chairman
Sold at will
$221.24K 5,326 at 41.54
14.2%
Not planned
23 Aug 2024
Vintz Stephen A Chief Financial Officer
Sold at will
$132.97K 3,201 at 41.54
1.2%
Not planned
20 Aug 2024
Yoran Amit President, CEO and Chairman
Sold at will
$205.95K 4,862 at 42.36
15.9%
Not planned
20 Aug 2024
Vintz Stephen A Chief Financial Officer
Sold at will
$119.46K 2,820 at 42.36
1.0%
Not planned
30 Jul 2024
Yoran Amit President, CEO and Chairman
Sold on a plan 2×
$1.91M 40,000 at 47.72
9.4%
Planned (10b5-1)
30 Jul 2024
Thurmond Mark C. Chief Operating Officer
Sold on a plan
$230.35K 4,700 at 49.01
14.3%
Planned (10b5-1)
24 May 2024
Yoran Amit President, CEO and Chairman
Sold at will
$247.14K 5,684 at 43.48
1.5%
Not planned
24 May 2024
Vintz Stephen A Chief Financial Officer
Sold at will
$148.61K 3,418 at 43.48
1.3%
Not planned
24 May 2024
Thurmond Mark C. Chief Operating Officer
Sold on a plan 2×
$146.53K 3,381 at 43.34
9.1%
Planned (10b5-1)
23 May 2024
Yoran Amit President, CEO and Chairman
Sold at will
$231.40K 5,359 at 43.18
1.4%
Not planned
23 May 2024
Vintz Stephen A Chief Financial Officer
Sold at will
$139.04K 3,220 at 43.18
1.2%
Not planned
23 May 2024
Thurmond Mark C. Chief Operating Officer
Sold on a plan
$102.38K 2,371 at 43.18
6.9%
Planned (10b5-1)
23 May 2024
Zecher Linda Kay Director
Sold at will
$102.15K 2,350 at 43.47
45.2%
Not planned
20 May 2024
Yoran Amit President, CEO and Chairman
Sold at will
$212.28K 4,851 at 43.76
1.3%
Not planned
20 May 2024
Vintz Stephen A Chief Financial Officer
Sold at will
$123.10K 2,813 at 43.76
1.1%
Not planned
28 Mar 2024
Vintz Stephen A Chief Financial Officer
Sold on a plan 2×
$768.36K 15,505 at 49.56
5.7%
Planned (10b5-1)
21 Mar 2024
Vintz Stephen A Chief Financial Officer
Sold on a plan
$568.99K 11,586 at 49.11
4.3%
Planned (10b5-1)
20 Mar 2024
Vintz Stephen A Chief Financial Officer
Sold on a plan
$3.85M 78,409 at 49.07
23.3%
Planned (10b5-1)
20 Mar 2024
Thurmond Mark C. Chief Operating Officer
Sold on a plan
$530.38K 10,824 at 49.00
27.9%
Planned (10b5-1)
19 Mar 2024
Yoran Amit President, CEO and Chairman
Sold on a plan
$476.50K 10,000 at 47.65
2.9%
Planned (10b5-1)
12 Mar 2024
Vintz Stephen A Chief Financial Officer
Sold on a plan 2×
$9.39M 200,000 at 46.93
43.7%
Planned (10b5-1)
Showing 1–50 of 349. Page 1 of 7 Older →