Tenable Holdings, Inc. (TENB) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for TENB. 13F holdings as of 2026-03-31.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 13,497,402 | $228M | INCREASED |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 9,632,968 | $163M | NEW |
| AMERIPRISE FINANCIAL INC | 8,499,447 | $144M | INCREASED |
| VANGUARD CAPITAL MANAGEMENT LLC | 5,347,521 | $90M | NEW |
| SHAPIRO CAPITAL MANAGEMENT LLC | 4,150,152 | $70M | INCREASED |
Recent Insider Trades
| Insider | Type | Shares | Value | Date |
|---|---|---|---|---|
| Margaret M Keane (Director) | EXERCISE | 3,188 | 2026-06-15 | |
| Mark C. Thurmond (Co-Chief Executive Officer) | SELL | 2,112 | $54K | 2026-05-22 |
| Mark C. Thurmond (Co-Chief Executive Officer) | EXERCISE | 4,368 | 2026-05-22 | |
| Mark C. Thurmond (Co-Chief Executive Officer) | SELL | 3,754 | $96K | 2026-05-22 |
| Mark C. Thurmond (Co-Chief Executive Officer) | EXERCISE | 7,764 | 2026-05-22 |
Full institutional holdings, insider history, and congressional trades for Tenable Holdings, Inc. on SentiSense.