The most recent Tenable Holdings (TENB) insider transaction: Charles H Bell (Director) received 10,386 shares as a grant or award on Oct 5, 2026, reported on Form 4 on Oct 6, 2026. So far in the quarter ending Dec 31, 2026, insider holdings showed no net buying or selling.
In the last 12 months, insiders at Tenable Holdings made open-market purchases of $616,245 (28.5K shares) and open-market sales of $3.09 million (121.81K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Stephen A Vintz | Co Chief Executive Officer | 624,816 | 0 | 624,816 | 50.0% | 25 Aug, 2026 |
| 2 | Mark C. Thurmond | Co Chief Executive Officer | 195,289 | 0 | 195,289 | 15.6% | 25 Aug, 2026 |
| 3 | Barron Anschutz | Other | 76,077 | 0 | 76,077 | 6.1% | 25 Aug, 2026 |
| 4 | Amit Yoran | President, Ceo And Chairman | 58,633 | 0 | 58,633 | 4.7% | 26 Nov, 2024 |
| 5 | Arthur W Jr Coviello | Director | 57,793 | 0 | 57,793 | 4.6% | 15 May, 2026 |
| 6 | Matthew Charles Brown | Chief Financial Officer | 47,010 | 0 | 47,010 | 3.8% | 25 Aug, 2026 |
| 7 | Stephen A Riddick | General Counsel Secretary | 42,199 | 0 | 42,199 | 3.4% | 25 Aug, 2022 |
| 8 | George Alex Tosheff | Director | 31,344 | 0 | 31,344 | 2.5% | 15 May, 2026 |
| 9 | Niloofar Razi Howe | Director | 29,839 | 0 | 29,839 | 2.4% | 15 May, 2026 |
| 10 | Raymond Jr. Vicks | Director | 20,509 | 0 | 20,509 | 1.6% | 11 Aug, 2026 |
| 11 | Margaret M Keane | Director | 20,231 | 0 | 20,231 | 1.6% | 17 Jun, 2026 |
| 12 | A Brooke Seawell | Director | 15,292 | 0 | 15,292 | 1.2% | 15 May, 2026 |
| 13 | Jerry M Kennelly | Director | 11,639 | 0 | 11,639 | 0.9% | 17 Aug, 2022 |
| 14 | Linda Kay Zecher | Director | 7,012 | 0 | 7,012 | 0.6% | 20 Aug, 2026 |
| 15 | John C Jr Huffard | Director | 6,062 | 0 | 6,062 | 0.5% | 15 May, 2026 |
| 16 | Kimberly Hammonds | Director | 4,962 | 0 | 4,962 | 0.4% | 26 May, 2022 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 05 Oct, 2026 | Charles H Bell | Director | Acquired A | 10,386 | $0.00 | $0 | 10,386 | Direct |
| 24 Aug, 2026 | Stephen A Vintz | Co Chief Executive Officer | Acquired M | 1,595 | $0.00 | $0 | 612,119 | Direct |
| 21 Aug, 2026 | Matthew Charles Brown | Chief Financial Officer | Acquired M | 14,544 | $0.00 | $0 | 54,410 | Direct |
| 24 Aug, 2026 | Barron Anschutz | Other | Acquired M | 1,337 | $0.00 | $0 | 75,212 | Direct |
| 24 Aug, 2026 | Mark C. Thurmond | Co Chief Executive Officer | Acquired M | 1,162 | $0.00 | $0 | 183,350 | Direct |
| 21 Aug, 2026 | Matthew Charles Brown | Chief Financial Officer | Disposed F | 7,400 | $34.38 | $254.41K | 47,010 | Direct |
| 24 Aug, 2026 | Barron Anschutz | Other | Disposed F | 640 | $33.94 | $21.72K | 74,572 | Direct |
| 24 Aug, 2026 | Stephen A Vintz | Co Chief Executive Officer | Disposed F | 764 | $33.94 | $25.93K | 611,355 | Direct |
| 24 Aug, 2026 | Mark C. Thurmond | Co Chief Executive Officer | Disposed F | 562 | $33.94 | $19.07K | 182,788 | Direct |
| 21 Aug, 2026 | Matthew Charles Brown | Chief Financial Officer | Disposed M | 14,544 | $0.00 | $0 | 174,536 | Direct |
| 24 Aug, 2026 | Mark C. Thurmond | Co Chief Executive Officer | Acquired M | 2,267 | $0.00 | $0 | 185,055 | Direct |
| 24 Aug, 2026 | Barron Anschutz | Other | Acquired M | 1,258 | $0.00 | $0 | 75,830 | Direct |
| 24 Aug, 2026 | Stephen A Vintz | Co Chief Executive Officer | Acquired M | 2,345 | $0.00 | $0 | 613,700 | Direct |
| 24 Aug, 2026 | Barron Anschutz | Other | Disposed F | 602 | $33.94 | $20.43K | 75,228 | Direct |
| 24 Aug, 2026 | Stephen A Vintz | Co Chief Executive Officer | Disposed F | 1,123 | $33.94 | $38.11K | 612,577 | Direct |
| 24 Aug, 2026 | Mark C. Thurmond | Co Chief Executive Officer | Disposed F | 1,097 | $33.94 | $37.23K | 183,958 | Direct |
| 24 Aug, 2026 | Stephen A Vintz | Co Chief Executive Officer | Acquired M | 6,095 | $0.00 | $0 | 618,672 | Direct |
| 24 Aug, 2026 | Barron Anschutz | Other | Acquired M | 1,629 | $0.00 | $0 | 76,857 | Direct |
| 24 Aug, 2026 | Mark C. Thurmond | Co Chief Executive Officer | Acquired M | 6,095 | $0.00 | $0 | 190,053 | Direct |
| 24 Aug, 2026 | Barron Anschutz | Other | Disposed F | 780 | $33.94 | $26.47K | 76,077 | Direct |