Tenable Holdings, Inc.
A cybersecurity company that helps organizations find and fix weaknesses in their computer networks before attackers can exploit them. Its best-known product is Nessus, a vulnerability scanner created in 1998 by co-founder Renaud Deraison when he was just 17, which became an industry standard. The company was founded in 2002 and named "Tenable" for the word's meaning — capable of being held and defended — a fitting motto for a business built on keeping networks secure.
Granted 815.3K · Sold 426.7K
Granted 349.4K · Sold 223.8K
Granted 360.3K · Sold 163.5K
Granted 15.9K
Granted 43.2K · Sold 10.2K
Granted 15.9K · Bought 12.0K
Granted 130.9K · Sold 139.6K
Granted 21.3K · Bought 4.5K · Sold 3.2K
Granted 43.6K · Bought 12.0K
Granted 25.7K
Granted 19.2K
Granted 20.2K
Granted 15.9K · Sold 8.9K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Vintz Stephen ACo-Chief Executive Officer, Director · 121 transactions | +118.2% | 475.1K | 815.3K | — | 426.7K |
| Yoran AmitPresident, CEO and Chairman, Director · 61 transactions | — | 461.9Kas of Nov 2024 | 349.4K | — | 223.8K |
| Thurmond Mark C.Co-Chief Executive Officer, Director · 128 transactions | +368.6% | 172.0K | 360.3K | — | 163.5K |
| Huffard John C JrDirector · 3 transactions | +16.4% | 112.5K | 15.9K | — | — |
| Anschutz BarronChief Accounting Officer · 43 transactions | — | 73.0K | 43.2K | — | 10.2K |
| Coviello Arthur W JrDirector · 4 transactions | +93.1% | 57.8K | 15.9K | 12.0K | — |
| Seawell A BrookeDirector · 8 transactions | — | 54.5K | 130.9K | — | 139.6K |
| Vicks Raymond Jr.Director · 15 transactions | — | 43.1K | 21.3K | 4.5K | 3.2K |
| Brown Matthew CharlesChief Financial Officer · 7 transactions | — | 39.9K | 43.6K | 12.0K | — |
| Tosheff George AlexDirector · 6 transactions | +458.4% | 31.3K | 25.7K | — | — |
| Howe Niloofar RaziDirector · 4 transactions | +179.9% | 29.8K | 19.2K | — | — |
| Keane Margaret MDirector · 5 transactions | — | 20.2K | 20.2K | — | — |
| Zecher Linda KayDirector · 7 transactions | +172.4% | 11.0K | 15.9K | — | 8.9K |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 3 years: -947.4K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.