Thurmond Mark C.
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to Thurmond Mark C.. Form 4 disclosures are required whenever a corporate insider — director, officer, or 10%+ shareholder — buys, sells, or receives company stock. Each row represents a separate reported transaction. All data is sourced directly from the SEC EDGAR public database.
| Company | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| TENB | Co-Chief Executive Officer | Tax Withholding | 1,796 | $25.68 | $46,121 | Nov 24, 2025 |
| TENB | Co-Chief Executive Officer | Sale | 2,541 | $29.84 | $75,823 | Aug 26, 2025 |
| TENB | Co-Chief Executive Officer | Option Exercise | 1,162 | — | — | Aug 22, 2025 |
| TENB | Co-Chief Executive Officer | Sale | 2,483 | $32.45 | $80,573 | May 27, 2025 |
| TENB | Co-Chief Executive Officer | Sale | 5,577 | $31.98 | $178,352 | May 23, 2025 |
| TENB | Co-CEO,Chief Operating Officer | Sale | 4,878 | $38.19 | $186,291 | Feb 27, 2025 |
| TENB | Co-CEO,Chief Operating Officer | Option Exercise | 1,363 | — | — | Feb 25, 2025 |
| TENB | Co-CEO,Chief Operating Officer | Option Exercise | 4,561 | — | — | Feb 19, 2025 |
| TENB | Chief Operating Officer | Sale | 939 | $42.95 | $40,330 | Nov 27, 2024 |
| TENB | Chief Operating Officer | Sale | 886 | $42.61 | $37,752 | Nov 26, 2024 |
| TENB | Chief Operating Officer | Option Exercise | 3,857 | — | — | Nov 22, 2024 |
| TENB | Chief Operating Officer | Sale | 823 | $40.71 | $33,504 | Nov 20, 2024 |
| TENB | Chief Operating Officer | Sale | 2,209 | $40.72 | $89,950 | Nov 18, 2024 |
| TENB | Chief Operating Officer | Sale | 881 | $41.39 | $36,465 | Aug 26, 2024 |
| TENB | Chief Operating Officer | Option Exercise | 3,713 | — | — | Aug 23, 2024 |
| TENB | Chief Operating Officer | Sale | 818 | $42.17 | $34,495 | Aug 21, 2024 |
| TENB | Chief Operating Officer | Option Exercise | 4,561 | — | — | Aug 20, 2024 |
| TENB | Chief Operating Officer | Sale | 4,700 | $49.01 | $230,347 | Jul 30, 2024 |
| TENB | Chief Operating Officer | Sale | 949 | $43.97 | $41,728 | May 28, 2024 |
| TENB | Chief Operating Officer | Option Exercise | 3,857 | — | — | May 24, 2024 |
| TENB | Chief Operating Officer | Sale | 820 | $43.55 | $35,711 | May 22, 2024 |
| TENB | Chief Operating Officer | Option Exercise | 4,561 | — | — | May 20, 2024 |
| TENB | Chief Operating Officer | Sale | 10,824 | $49.00 | $530,376 | Mar 20, 2024 |
| TENB | Chief Operating Officer | Sale | 3,644 | $46.81 | $170,576 | Feb 27, 2024 |
| TENB | Chief Operating Officer | Option Exercise | 1,362 | — | — | Feb 23, 2024 |
| TENB | Chief Operating Officer | Option Exercise | 4,648 | — | — | Feb 20, 2024 |
| TENB | Chief Operating Officer | Sale | 26,175 | $51.45 | $1,346,704 | Feb 7, 2024 |
| TENB | Chief Operating Officer | Sale | 3,976 | $47.34 | $188,224 | Feb 5, 2024 |
| TENB | Chief Operating Officer | Sale | 951 | $42.06 | $39,999 | Nov 28, 2023 |
| TENB | Chief Operating Officer | Sale | 827 | $40.00 | $33,080 | Nov 27, 2023 |
| TENB | Chief Operating Officer | Sale | 2,197 | $39.65 | $87,111 | Nov 17, 2023 |
| TENB | Chief Operating Officer | Option Exercise | 13,103 | — | — | Nov 6, 2023 |
| TENB | Chief Operating Officer | Sale | 921 | $42.73 | $39,354 | Aug 25, 2023 |
| TENB | Chief Operating Officer | Option Exercise | 3,856 | — | — | Aug 24, 2023 |
| TENB | Chief Operating Officer | Sale | 2,195 | $44.44 | $97,546 | Aug 17, 2023 |
| TENB | Chief Operating Officer | Sale | 6,396 | $47.09 | $301,188 | Aug 3, 2023 |
| TENB | Chief Operating Officer | Option Exercise | 5,218 | — | — | May 24, 2023 |
| TENB | Chief Operating Officer | Sale | 2,203 | $38.28 | $84,331 | May 17, 2023 |
| TENB | Chief Operating Officer | Sale | 6,245 | $35.18 | $219,699 | May 3, 2023 |
| TENB | Chief Operating Officer | Sale | 4,204 | $42.98 | $180,688 | Feb 28, 2023 |
| TENB | Chief Operating Officer | Option Exercise | 5,450 | — | — | Feb 23, 2023 |
| TENB | Chief Operating Officer | Option Exercise | 4,561 | — | — | Feb 21, 2023 |
| TENB | Chief Operating Officer | Sale | 4,002 | $43.25 | $173,087 | Feb 3, 2023 |
| TENB | Chief Operating Officer | Sale | 2,565 | $38.49 | $98,727 | Nov 17, 2022 |
| 0001305294 | EVP, Worldwide Sales and Serv. | Disposition | 65,000 | — | — | Aug 22, 2016 |
| 0001305294 | EVP, Worldwide Sales and Serv. | Award / Grant | 15,167 | — | — | Jul 26, 2016 |
| 0001305294 | EVP, Worldwide Sales and Serv. | Award / Grant | 15,167 | — | — | Mar 22, 2016 |