Data spanning the past 90 days through December 17, 2025 reveals that Tenable Holdings's three principal insider shareholders consist of Co Chief Executive Officer Stephen A Vintz (373.50K shares), President And CEO And Chairman Amit Yoran (304.58K shares), Co Chief Executive Officer Mark C. Thurmond (113.64K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Holdings Group, Llc Insight | 1,330,719 | 19 Feb, 2021 | |
| Stephen A Vintz | Co Chief Executive Officer | 373,496 | 25 Nov, 2025 |
| Amit Yoran | President And CEO And Chairman | 304,580 | 26 Nov, 2024 |
| Ping Li | 227,971 | 04 May, 2021 | |
| Mark C. Thurmond | Co Chief Executive Officer | 113,639 | 25 Nov, 2025 |
| Richard Wells | 97,349 | 30 Jul, 2021 | |
| Barron Anschutz | 63,497 | 25 Nov, 2025 | |
| Stephen A Riddick | General Counsel & Secretary | 42,199 | 25 Aug, 2022 |
| Arthur W Jr Coviello | 39,731 | 15 May, 2025 | |
| George Alex Tosheff | 25,282 | 30 Sep, 2025 | |
| Niloofar Razi Howe | 23,777 | 15 May, 2025 | |
| John C Jr Huffard | 20,987 | 15 May, 2025 | |
| Raymond Jr. Vicks | 16,266 | 09 Sep, 2025 | |
| A Brooke Seawell | 13,852 | 15 May, 2025 | |
| Jerry M Kennelly | 11,639 | 17 Aug, 2022 | |
| Margaret M Keane | 10,981 | 17 Jun, 2025 | |
| Matthew Charles Brown | Chief Financial Officer | 9,266 | 25 Nov, 2025 |
| Kimberly Hammonds | 4,962 | 26 May, 2022 | |
| Linda Kay Zecher | 4,960 | 15 May, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 24 Nov, 2025 | Stephen A Vintz | Common Stock | A | 1,878 | $0.00 | 364,557 | D | M |
| 24 Nov, 2025 | Mark C. Thurmond | Common Stock | A | 1,363 | $0.00 | 106,364 | D | M |
| 24 Nov, 2025 | Barron Anschutz | Common Stock | A | 1,390 | $0.00 | 62,810 | D | M |
| 24 Nov, 2025 | Stephen A Vintz | Common Stock | D | 899 | $25.68 | 363,658 | D | F |
| 24 Nov, 2025 | Mark C. Thurmond | Common Stock | D | 660 | $25.68 | 105,704 | D | F |
| 24 Nov, 2025 | Barron Anschutz | Common Stock | D | 666 | $25.68 | 62,144 | D | F |
| 24 Nov, 2025 | Stephen A Vintz | Common Stock | A | 1,594 | $0.00 | 365,252 | D | M |
| 24 Nov, 2025 | Mark C. Thurmond | Common Stock | A | 1,162 | $0.00 | 106,866 | D | M |
| 24 Nov, 2025 | Barron Anschutz | Common Stock | A | 1,337 | $0.00 | 63,481 | D | M |
| 24 Nov, 2025 | Mark C. Thurmond | Common Stock | D | 562 | $25.68 | 106,304 | D | F |
| 24 Nov, 2025 | Stephen A Vintz | Common Stock | D | 763 | $25.68 | 364,489 | D | F |
| 24 Nov, 2025 | Barron Anschutz | Common Stock | D | 640 | $25.68 | 62,841 | D | F |
| 24 Nov, 2025 | Stephen A Vintz | Common Stock | A | 2,345 | $0.00 | 366,834 | D | M |
| 24 Nov, 2025 | Mark C. Thurmond | Common Stock | A | 2,267 | $0.00 | 108,571 | D | M |
| 24 Nov, 2025 | Barron Anschutz | Common Stock | A | 1,258 | $0.00 | 64,099 | D | M |
| 24 Nov, 2025 | Mark C. Thurmond | Common Stock | D | 1,097 | $25.68 | 107,474 | D | F |
| 24 Nov, 2025 | Barron Anschutz | Common Stock | D | 602 | $25.68 | 63,497 | D | F |
| 24 Nov, 2025 | Stephen A Vintz | Common Stock | D | 1,123 | $25.68 | 365,711 | D | F |
| 24 Nov, 2025 | Mark C. Thurmond | Common Stock | A | 3,857 | $0.00 | 111,331 | D | M |
| 24 Nov, 2025 | Stephen A Vintz | Common Stock | A | 5,316 | $0.00 | 371,027 | D | M |