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.
Sold 6.64M
Granted 1.38M · Sold 1.27M
Granted 1.86M · Sold 2.30M
Sold 260.0K
Granted 449.1K · Sold 218.1K
Granted 80.4K · Sold 376.3K
Sold 29.6K
Granted 43.2K · Sold 10.2K
Granted 268.3K · Bought 19.5K · Sold 230.0K
Granted 153.3K · Bought 30.0K · Sold 153.0K
Granted 28.0K · Bought 4.5K · Sold 5.7K
Granted 628.2K · Sold 586.0K
Granted 43.6K · Bought 12.0K
Granted 349.7K · Sold 313.5K
Granted 170.4K · Sold 158.7K
Granted 31.7K · Sold 6.0K
Granted 29.8K
Sold 6.63M
Granted 20.2K
Granted 48.9K · Sold 37.9K
Granted 248.4K · Bought 21.7K · Sold 265.2K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Accel Growth Fund II Associates L.L.C. +8 co-filers10% owner · 15 transactions | — | 22.70Mas of May 2019 | — | — | — |
| Accel Growth Fund II L.P. +3 co-filers10% owner · 15 transactions | — | 22.70Mas of May 2019 | — | — | — |
| Accel Growth Fund II Associates L.L.C. +7 co-filers10% owner · 9 transactions | — | 8.99Mas of Dec 2019 | — | — | — |
| Accel Growth Fund III Associates L.L.C. +3 co-filers10% owner · 3 transactions | — | 4.82Mas of Dec 2019 | — | — | — |
| Accel Growth Fund II Associates L.L.C. +3 co-filers10% owner · 9 transactions | — | 4.08Mas of Sep 2019 | — | — | — |
| Insight Holdings Group, LLC +6 co-filers10% owner · 8 transactions | — | 1.55Mas of Feb 2021 | — | — | — |
| Insight Venture Associates Growth-Buyout Coinvestment Ltd. +6 co-filers10% owner · 84 transactions | — | 1.46Mas of Feb 2021 | — | — | 6.64M |
| Vintz Stephen ACo-Chief Executive Officer, Director · 213 transactions | — | 475.1K | 1.38M | — | 1.27M |
| Yoran AmitPresident, CEO and Chairman, Director · 290 transactions | — | 461.9Kas of Nov 2024 | 1.86M | — | 2.30M |
| Li PingDirector · 29 transactions | — | 347.0Kas of May 2021 | — | — | 260.0K |
| Wells RichardDirector · 12 transactions | — | 221.6Kas of Jul 2021 | — | — | — |
| Thurmond Mark C.Co-Chief Executive Officer, Director · 155 transactions | — | 172.0K | 449.1K | — | 218.1K |
| Huffard John C JrDirector · 82 transactions | — | 112.5K | 80.4K | — | 376.3K |
| IVP (Venice), L.P. +9 co-filers10% owner · 5 transactions | — | 80.6Kas of Nov 2020 | — | — | 29.6K |
| Anschutz BarronChief Accounting Officer · 43 transactions | — | 73.0K | 43.2K | — | 10.2K |
| Coviello Arthur W JrDirector · 34 transactions | — | 57.8K | 268.3K | 19.5K | 230.0K |
| Seawell A BrookeDirector · 15 transactions | — | 54.5K | 153.3K | 30.0K | 153.0K |
| Vicks Raymond Jr.Director · 19 transactions | — | 43.1K | 28.0K | 4.5K | 5.7K |
| Riddick Stephen AGeneral Counsel & Secretary · 107 transactions | — | 42.2Kas of Aug 2022 | 628.2K | — | 586.0K |
| Brown Matthew CharlesChief Financial Officer · 7 transactions | — | 39.9K | 43.6K | 12.0K | — |
| Negron JohnChief Revenue Officer · 19 transactions | — | 36.3Kas of Jul 2019 | 349.7K | — | 313.5K |
| Kennelly Jerry MDirector · 45 transactions | — | 35.8Kas of Aug 2022 | 170.4K | — | 158.7K |
| Tosheff George AlexDirector · 8 transactions | — | 31.3K | 31.7K | — | 6.0K |
| Howe Niloofar RaziDirector · 7 transactions | — | 29.8K | 29.8K | — | — |
| IVP (Venice), L.P. +7 co-filersDirector, 10% owner · 73 transactions | — | 25.7Kas of Aug 2020 | — | — | 6.63M |
| Keane Margaret MDirector · 5 transactions | — | 20.2K | 20.2K | — | — |
| Zecher Linda KayDirector · 21 transactions | — | 11.0K | 48.9K | — | 37.9K |
| Hammonds KimberlyDirector · 20 transactions | — | 5.0Kas of May 2022 | 248.4K | 21.7K | 265.2K |
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 all recorded history: -19.40M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.