Tenable Holdings, Inc.

Services-Prepackaged Software

TENB Software & IT Services People in Software & IT Services SEC CIK 0001660280 ↗

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Market capitalisation
$3.32B
110,139,983 shares Covers every share class this company has on file.
Insiders on file
9
people who have filed Form 3, 4 or 5 naming this issuer
Value of insider-held stock
$53.18M
from the holdings reported on Forms 3/4/5; this figure has no separate as-of date on file
Insider-held share of market cap
1.60%
insider-held value divided by market capitalisation

What Tenable Holdings, Inc. reports

Revenue and net income below are for fiscal period FY2025, the period label carried by this company’s own annual XBRL filings to the SEC. Fiscal years do not line up between companies — one company’s FY2026 can cover much the same months as another’s FY2025 — so compare the periods, not just the numbers.

Revenue
$999.41M
FY2025 annual revenue, from this company’s own annual XBRL filings to the SEC
Net income
-$36.12M
FY2025 a loss for the period, from this company’s own annual XBRL filings to the SEC
Employees
1,995
Yahoo Finance
Where the employee count comes from

Headcount comes from Yahoo Finance, not from a filing. The date beside it is the day we retrieved the figure — it is not the date the company counted its staff, and Yahoo does not publish that date. Unlike the SEC filings behind the other figures on this page, this one carries no open licence, so we publish the number and nothing else from that source.

Insiders at Tenable Holdings, Inc.

Shares is what each person last reported holding here.

Everyone below has filed at least one insider report against this company.

Value is that share count priced at the same closing price used everywhere else on this site. A row priced from only some of a person’s securities says so — we do not quietly present a partial sum as a complete one.

Rows are grouped by the role each person reports.

The role comes from the relationship boxes a person ticks on their own insider filings — officer, director, ten per cent owner — not from anything we infer. Somebody who is both an officer and a director appears once, in the combined group, so the row count still matches the figure at the top of this page. Where no filing states a role we say so instead of guessing one.

People who file insider reports against Tenable Holdings, Inc..
Insider Reported role Shares Value Last action
Officers who also sit on the board 3
Amit Yoran Amit Yoran CEO 671,964 $23.01M — position reported
Stephen A Vintz CEO 428,631 $14.68M F Shares withheld for taxes Aug 24, 2026 position reported
Mark C Thurmond Mark C Thurmond CEO 168,267 $5.76M F Shares withheld for taxes Aug 24, 2026 position reported
Directors 5
John C Huffard Jr. Board Member 106,422 $3.64M M Option exercise or conversion May 13, 2026 position reported
Arthur W. Coviello Jr. Board Member 51,731 $1.77M M Option exercise or conversion May 13, 2026 position reported
A. Brooke Seawell Board Member 24,230 $829.9K M Option exercise or conversion May 13, 2026 position reported
Raymond Vicks Jr. Board Member 20,766 $711.2K S Open-market sale Aug 7, 2026 position reported
Margaret M. Keane Margaret M. Keane Board Member 10,981 $376.1K M Option exercise or conversion Jun 15, 2026 position reported
Role not stated in the disclosures we hold 1
Barron Anschutz Insider 69,794 $2.39M F Shares withheld for taxes Aug 24, 2026 position reported

Events from filings

Detected automatically in the filings linked below. Each headline is built from the numbers in those filings, not written by a model. Newest first; events older than 45 days stay listed and are marked as older.

Arthur W. Coviello Jr. bought 12,000 Tenable Holdings, Inc. (TENB) shares for $258,000 on Feb 9, 2026

Unusual change in a direct holding

Flagged because the change that day in the shares this person holds directly was unusually large compared with their own earlier changes. The rows below are the open-market trades reported that day; under each share count is the balance the filing reports after that line.

Arthur W. Coviello Jr. bought 12,000 Tenable Holdings, Inc. (TENB) shares for $258,000 on Feb 9, 2026
Date Insider Transaction Shares Price Value Filing
Feb 9, 2026 Arthur W. Coviello Jr. P Open-market purchase 12,000 held after: 51,731 $21.50 $258,000 SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Recent insider transactions

Of the 332 rows we hold, 2 are open-market purchases (P) and 70 open-market sales (S) — the only codes we count as buying or selling.

The rest — awards, shares withheld to pay tax, option exercises, gifts and so on — follow from an employment contract or a transfer arranged off-market, not from a decision to buy or sell, so counting them would turn this into a pay table.

A price of 0.00 is a real reported figure on gifts (G) and share awards (A) — not a gap in our data.

Insider transactions disclosed to the SEC for Tenable Holdings, Inc., newest first, each with the filing behind it.
Date Insider Transaction Shares Price Value Filing
Aug 24, 2026 Mark C Thurmond F Shares withheld for taxes 2,112 $33.94 $71.7K SEC filing ↗
Aug 24, 2026 Mark C Thurmond M Option exercise or conversion 4,368 $0.00 $0 SEC filing ↗
Aug 24, 2026 Mark C Thurmond F Shares withheld for taxes 3,754 $33.94 $127.4K SEC filing ↗
Aug 24, 2026 Mark C Thurmond M Option exercise or conversion 7,764 $0.00 $0 SEC filing ↗
Aug 24, 2026 Mark C Thurmond F Shares withheld for taxes 1,796 $33.94 $61.0K SEC filing ↗
Aug 24, 2026 Mark C Thurmond M Option exercise or conversion 3,713 $0.00 $0 SEC filing ↗
Aug 24, 2026 Mark C Thurmond F Shares withheld for taxes 2,947 $33.94 $100.0K SEC filing ↗
Aug 24, 2026 Mark C Thurmond M Option exercise or conversion 6,095 $0.00 $0 SEC filing ↗
Aug 24, 2026 Mark C Thurmond F Shares withheld for taxes 1,097 $33.94 $37.2K SEC filing ↗
Aug 24, 2026 Mark C Thurmond M Option exercise or conversion 2,267 $0.00 $0 SEC filing ↗
Aug 24, 2026 Mark C Thurmond F Shares withheld for taxes 562 $33.94 $19.1K SEC filing ↗
Aug 24, 2026 Mark C Thurmond M Option exercise or conversion 1,162 $0.00 $0 SEC filing ↗
Aug 24, 2026 Stephen A Vintz F Shares withheld for taxes 2,163 $33.94 $73.4K SEC filing ↗
Aug 24, 2026 Stephen A Vintz M Option exercise or conversion 4,519 $0.00 $0 SEC filing ↗
Aug 24, 2026 Stephen A Vintz F Shares withheld for taxes 3,716 $33.94 $126.1K SEC filing ↗
Aug 24, 2026 Stephen A Vintz M Option exercise or conversion 7,764 $0.00 $0 SEC filing ↗
Aug 24, 2026 Stephen A Vintz F Shares withheld for taxes 2,438 $33.94 $82.7K SEC filing ↗
Aug 24, 2026 Stephen A Vintz M Option exercise or conversion 5,095 $0.00 $0 SEC filing ↗
Aug 24, 2026 Stephen A Vintz F Shares withheld for taxes 2,917 $33.94 $99.0K SEC filing ↗
Aug 24, 2026 Stephen A Vintz M Option exercise or conversion 6,095 $0.00 $0 SEC filing ↗
Aug 24, 2026 Stephen A Vintz F Shares withheld for taxes 1,123 $33.94 $38.1K SEC filing ↗
Aug 24, 2026 Stephen A Vintz M Option exercise or conversion 2,345 $0.00 $0 SEC filing ↗
Aug 24, 2026 Stephen A Vintz F Shares withheld for taxes 764 $33.94 $25.9K SEC filing ↗
Aug 24, 2026 Stephen A Vintz M Option exercise or conversion 1,595 $0.00 $0 SEC filing ↗
Aug 24, 2026 Barron Anschutz F Shares withheld for taxes 780 $33.94 $26.5K SEC filing ↗

From SEC Form 4 filings. Every row links to the filing it came from. How we calculate this.

What a Form 4 is

The report an officer, director or large shareholder must file after trading their own company’s stock.

Subsidiaries — 11 legal entities

Subsidiaries of Tenable Holdings, Inc.

11 legal entities named in the subsidiary exhibit filed with this company’s most recent 10-K. . Filing on SEC.gov.

This is not the full list. SEC rules only require a company to name its significant subsidiaries.

What that leaves out

Smaller entities are left out of the exhibit entirely. A short list here means a short exhibit — it does not mean the company owns nothing else. Nothing on this page is inferred: every name below is copied from the filing.

Subsidiaries Tenable Holdings, Inc. names in its most recent annual report, with the place each one is organised.
Subsidiary Organised in
Accurics, Inc. Delaware
Alsid, SAS France
Apex Security Ltd Israel
Bit Discovery, Inc. Delaware
Ermetic Ltd. Israel
Tenable Israel Ltd. Israel
Tenable Network Security Ireland Limited Ireland
Tenable Public Sector LLC Delaware
Tenable, Inc. Delaware
Vulcan Cyber Ltd Israel
Vulcan Cyber, Inc. Delaware
What counts as a subsidiary

A subsidiary is a separate legal entity this company controls; it is not the same thing as a brand, a division or an office. These entities do not file with the SEC in their own right, so there is no separate page to open for them.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Sources and technical notes

Every figure on this page comes from filings to the U.S. SEC via EDGAR. Nothing here is estimated, and nothing is taken from press coverage or company websites.

Share count: cover page of the latest filing (dei:EntityCommonStockSharesOutstanding), taken from Tenable Holdings, Inc.’s own filings and multiplied by our closing price. Full method.

What that share count means

the share count the company itself prints on the cover of its most recent filing, as of the date it signed that filing.

We do not take a market cap from a data vendor, and we do not estimate one: the figure is a share count from Tenable Holdings, Inc.’s own SEC filings multiplied by the closing price we hold for the same stock.

Logo: Tenable, Inc. / Public domain , via Wikimedia Commons ↗ — used here to identify the company. Trademarks remain the property of their owner.