InsiderSource
TENB

Tenable Holdings, Inc.

SEC CIK 1660280
$26.80 +35.9% · 90 days
90-day buys
$258.5K
1 open-market
90-day sells
$0
0 open-market
Net insider flow
+$258.5K
Net buying
Filings shown
165
Most recent
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At a glance

Over the last 90 days, insiders at TENB have bought a net $258.5K of stock (1 open-market buy vs 0 sells).

Largest recent trade: Vintz Stephen A sold $7M of TENB, trimming their stake 33%.

Most active filer: Thurmond Mark C., with 65 transactions among the recent filings shown.

Insider transaction history

Form 4 filings for TENB, newest first
View on SEC EDGAR ↗
TENB
Tenable Holdings, Inc.
Sell Thurmond Mark C. · Chief Operating Officer · Open-market sale · filed Aug 28, 2024 ΔOwn −2.4%

Thurmond Mark C. sold $36.5K of TENB, trimming their stake 2%.

−$36.5K
881 sh @ $41
TENB
Tenable Holdings, Inc.
Sell Thurmond Mark C. · Chief Operating Officer · Open-market sale · filed Aug 28, 2024 ΔOwn −6.8%

Thurmond Mark C. sold $104.5K of TENB, trimming their stake 7%.

−$104.5K
2,502 sh @ $42
TENB
Tenable Holdings, Inc.
Sell Thurmond Mark C. · Chief Operating Officer · Open-market sale · filed Aug 26, 2024 ΔOwn −6.8%

Thurmond Mark C. sold $97.9K of TENB, trimming their stake 7%.

−$97.9K
2,357 sh @ $42
TENB
Tenable Holdings, Inc.
Sell Vintz Stephen A · Chief Financial Officer · Open-market sale · filed Aug 26, 2024 ΔOwn −1.2%

Vintz Stephen A sold $133K of TENB, trimming their stake 1%.

−$133K
3,201 sh @ $42
TENB
Tenable Holdings, Inc.
Sell Thurmond Mark C. · Chief Operating Officer · Open-market sale · filed Aug 22, 2024 ΔOwn −2.7%

Thurmond Mark C. sold $34.5K of TENB, trimming their stake 3%.

−$34.5K
818 sh @ $42
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TENB
Tenable Holdings, Inc.
Sell Vintz Stephen A · Chief Financial Officer · Open-market sale · filed Aug 21, 2024 ΔOwn −1.0%

Vintz Stephen A sold $119.5K of TENB, trimming their stake 1%.

−$119.5K
2,820 sh @ $42
TENB
Tenable Holdings, Inc.
Sell Thurmond Mark C. · Chief Operating Officer · Open-market sale · filed Aug 21, 2024 ΔOwn −6.8%

Thurmond Mark C. sold $94.2K of TENB, trimming their stake 7%.

−$94.2K
2,224 sh @ $42
TENB
Tenable Holdings, Inc.
Sell Thurmond Mark C. · Chief Operating Officer · Open-market sale · filed Aug 1, 2024 ΔOwn −14%

Thurmond Mark C. sold $230.3K of TENB, trimming their stake 14%.

−$230.3K
4,700 sh @ $49
TENB
Tenable Holdings, Inc.
Sell Thurmond Mark C. · Chief Operating Officer · Open-market sale · filed May 29, 2024 ΔOwn −2.8%

Thurmond Mark C. sold $41.7K of TENB, trimming their stake 3%.

−$41.7K
949 sh @ $44
TENB
Tenable Holdings, Inc.
Sell Thurmond Mark C. · Chief Operating Officer · Open-market sale · filed May 28, 2024 ΔOwn −2.3%

Thurmond Mark C. sold $37.6K of TENB, trimming their stake 2%.

−$37.6K
875 sh @ $43
TENB
Tenable Holdings, Inc.
Sell Thurmond Mark C. · Chief Operating Officer · Open-market sale · filed May 28, 2024 ΔOwn −6.9%

Thurmond Mark C. sold $109K of TENB, trimming their stake 7%.

−$109K
2,506 sh @ $43
TENB
Tenable Holdings, Inc.
Sell Vintz Stephen A · Chief Financial Officer · Open-market sale · filed May 28, 2024 ΔOwn −1.3%

Vintz Stephen A sold $148.6K of TENB, trimming their stake 1%.

−$148.6K
3,418 sh @ $43
TENB
Tenable Holdings, Inc.
Sell Thurmond Mark C. · Chief Operating Officer · Open-market sale · filed May 28, 2024 ΔOwn −6.9%

Thurmond Mark C. sold $102.4K of TENB, trimming their stake 7%.

−$102.4K
2,371 sh @ $43
TENB
Tenable Holdings, Inc.
Sell Vintz Stephen A · Chief Financial Officer · Open-market sale · filed May 28, 2024 ΔOwn −1.2%

Vintz Stephen A sold $139K of TENB, trimming their stake 1%.

−$139K
3,220 sh @ $43
TENB
Tenable Holdings, Inc.
Sell Zecher Linda Kay · Director · Open-market sale · filed May 23, 2024 ΔOwn −45%

Zecher Linda Kay sold $102.2K of TENB, trimming their stake 45%.

−$102.2K
2,350 sh @ $43
TENB
Tenable Holdings, Inc.
Sell Thurmond Mark C. · Chief Operating Officer · Open-market sale · filed May 23, 2024 ΔOwn −2.7%

Thurmond Mark C. sold $35.7K of TENB, trimming their stake 3%.

−$35.7K
820 sh @ $44
TENB
Tenable Holdings, Inc.
Sell Thurmond Mark C. · Chief Operating Officer · Open-market sale · filed May 21, 2024 ΔOwn −6.8%

Thurmond Mark C. sold $97.1K of TENB, trimming their stake 7%.

−$97.1K
2,219 sh @ $44
TENB
Tenable Holdings, Inc.
Sell Vintz Stephen A · Chief Financial Officer · Open-market sale · filed May 21, 2024 ΔOwn −1.1%

Vintz Stephen A sold $123.1K of TENB, trimming their stake 1%.

−$123.1K
2,813 sh @ $44
TENB
Tenable Holdings, Inc.
Sell Vintz Stephen A · Chief Financial Officer · Open-market sale · filed Apr 1, 2024 ΔOwn −5.0%

Vintz Stephen A sold $683.2K of TENB, trimming their stake 5%.

−$683.2K
13,805 sh @ $49
TENB
Tenable Holdings, Inc.
Sell Vintz Stephen A · Chief Financial Officer · Open-market sale · filed Apr 1, 2024 ΔOwn −0.7%

Vintz Stephen A sold $85.2K of TENB, trimming their stake 1%.

−$85.2K
1,700 sh @ $50
TENB
Tenable Holdings, Inc.
Sell Vintz Stephen A · Chief Financial Officer · Open-market sale · filed Mar 22, 2024 ΔOwn −4.3%

Vintz Stephen A sold $569K of TENB, trimming their stake 4%.

−$569K
11,586 sh @ $49
TENB
Tenable Holdings, Inc.
Sell Thurmond Mark C. · Chief Operating Officer · Open-market sale · filed Mar 22, 2024 ΔOwn −28%

Thurmond Mark C. sold $530.4K of TENB, trimming their stake 28%.

−$530.4K
10,824 sh @ $49
TENB
Tenable Holdings, Inc.
Sell Vintz Stephen A · Chief Financial Officer · Open-market sale · filed Mar 22, 2024 ΔOwn −23%

Vintz Stephen A sold $3.85M of TENB, trimming their stake 23%.

−$3.85M
78,409 sh @ $49
TENB
Tenable Holdings, Inc.
Sell Vintz Stephen A · Chief Financial Officer · Open-market sale · filed Mar 14, 2024 ΔOwn −33%

Vintz Stephen A sold $7M of TENB, trimming their stake 33%.

−$7M
149,735 sh @ $47
TENB
Tenable Holdings, Inc.
Sell Vintz Stephen A · Chief Financial Officer · Open-market sale · filed Mar 14, 2024 ΔOwn −16%

Vintz Stephen A sold $2.39M of TENB, trimming their stake 16%.

−$2.39M
50,265 sh @ $47
TENB
Tenable Holdings, Inc.
Sell Thurmond Mark C. · Chief Operating Officer · Open-market sale · filed Feb 29, 2024 ΔOwn −8.7%

Thurmond Mark C. sold $170.6K of TENB, trimming their stake 9%.

−$170.6K
3,644 sh @ $47
TENB
Tenable Holdings, Inc.
Sell Thurmond Mark C. · Chief Operating Officer · Open-market sale · filed Feb 29, 2024 ΔOwn −2.4%

Thurmond Mark C. sold $52K of TENB, trimming their stake 2%.

−$52K
1,095 sh @ $48
TENB
Tenable Holdings, Inc.
Sell Thurmond Mark C. · Chief Operating Officer · Open-market sale · filed Feb 29, 2024 ΔOwn −5.4%

Thurmond Mark C. sold $113K of TENB, trimming their stake 5%.

−$113K
2,383 sh @ $47
TENB
Tenable Holdings, Inc.
Sell Vintz Stephen A · Chief Financial Officer · Open-market sale · filed Feb 29, 2024 ΔOwn −1.2%

Vintz Stephen A sold $153.5K of TENB, trimming their stake 1%.

−$153.5K
3,236 sh @ $47
TENB
Tenable Holdings, Inc.
Sell Vintz Stephen A · Chief Financial Officer · Open-market sale · filed Feb 27, 2024 ΔOwn −3.6%

Vintz Stephen A sold $461.5K of TENB, trimming their stake 4%.

−$461.5K
9,671 sh @ $48
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About TENB insider activity

This page tracks every recent Form 4 filed for Tenable Holdings, Inc. with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.

The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.

Frequently asked questions

How often is TENB insider data updated?

Continuously. We read from SEC EDGAR, so new Form 4 filings for Tenable Holdings, Inc. usually appear here within minutes of being accepted by the SEC.

What does "net insider flow" mean?

It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.

Why do some rows show grants or option exercises instead of buys?

Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.

Is this investment advice?

No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.