Insider trading

Period: 120 months Stock: TENB + 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.

462 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.

462 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.

462 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.

462 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.
462 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
462 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.

462 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
4 May 2026
Brown Matthew Charles Chief Financial Officer
Bought
$258.48K 12,000 at 21.54
64.7%
First buy on file
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
17 Oct 2025
Anschutz Barron Principal Accounting Officer
Sold at will
$28.40K 976 at 29.10
1.6%
Not planned
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
26 Aug 2025
Thurmond Mark C. Co-Chief Executive Officer
Sold at will
$75.82K 2,541 at 29.84
2.4%
Not planned
26 Aug 2025
Anschutz Barron Principal Accounting Officer
Sold at will
$19.99K 670 at 29.84
1.1%
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
25 Aug 2025
Anschutz Barron Principal Accounting Officer
Sold at will
$38.15K 1,261 at 30.25
2.1%
Not planned
17 Jul 2025
Anschutz Barron Principal Accounting Officer
Sold at will
$32.09K 970 at 33.08
1.6%
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
27 May 2025
Thurmond Mark C. Co-Chief Executive Officer
Sold at will
$80.57K 2,483 at 32.45
3.3%
Not planned
27 May 2025
Anschutz Barron Principal Accounting Officer
Sold at will
$21.25K 655 at 32.45
1.1%
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
23 May 2025
Anschutz Barron Principal Accounting Officer
Sold at will
$39.82K 1,245 at 31.98
2.1%
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
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
19 Feb 2025
Vintz Stephen A Co-CEO,Chief Financial Officer
Sold at will
$76.03K 1,922 at 39.56
0.7%
Not planned
19 Feb 2025
Thurmond Mark C. Co-CEO,Chief Operating Officer
Sold at will
$53.05K 1,341 at 39.56
3.1%
Not planned
8 Jan 2025
Sold on a plan
$31.16K 809 at 38.52
8.5%
Planned (10b5-1)
27 Nov 2024
Thurmond Mark C. Chief Operating Officer
Sold on a plan
$40.33K 939 at 42.95
2.4%
Planned (10b5-1)
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
20 Nov 2024
Thurmond Mark C. Chief Operating Officer
Sold on a plan
$33.50K 823 at 40.71
2.3%
Planned (10b5-1)
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
19 Nov 2024
Thurmond Mark C. Chief Operating Officer
Sold at will
$89.95K 2,209 at 40.72
5.9%
Not planned
27 Aug 2024
Thurmond Mark C. Chief Operating Officer
Sold on a plan
$39.02K 951 at 41.03
2.8%
Planned (10b5-1)
26 Aug 2024
Yoran Amit President, CEO and Chairman
Sold at will
$236.85K 5,673 at 41.75
12.6%
Not planned
Showing 1–50 of 462. Page 1 of 10 Older →