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Thurmond Mark C.
Co-Chief Executive OfficerDirectorCIK 0001651579
Largest Purchase
No open-market purchases in the recent filings.
Profile
- Filings
- 4
- Buy transactions
- 0
- Sell transactions
- 2
- Companies
- 1
- Active
- 2025–2026
Across 4 filings between 2025–2026, Thurmond Mark C., Co-Chief Executive Officer, Director, has disclosed $1.5M in transactions — all concentrated in Tenable Holdings, Inc. (TENB). Their disclosed trades are heavily weighted toward selling — $0 in buys and $937.9K in sells. Data is sourced from official SEC Form 3, 4, and 5 filings.
Associated Companies
Trading History
4 loaded
| May 26 | TENB Tenable Holdings, Inc. | Thurmond Mark C. | Co-Chief Executive Officer, Director | Exercise | $312.2K |
| Nov 25 | TENB Tenable Holdings, Inc. | Thurmond Mark C. | Co-Chief Executive Officer, Director | Exercise | $207.8K |
| Aug 27 | TENB Tenable Holdings, Inc. | Thurmond Mark C. | Co-Chief Executive Officer, Director | Sell | $75.8K |
| Aug 26 | TENB Tenable Holdings, Inc. | Thurmond Mark C. | Co-Chief Executive Officer, Director | Sell | $862.1K |
4 filings