Thurmond Mark C. (CIK 0001651579)

Latest company ownership

Shares held
4,368
Last filed at
Nov 25, 2025
Confidence Score
39.9
2025Q4
Confidence Score History
2022Q4 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Nov 24, 2025 Nov 25, 2025 Tenable Holdings, Inc. CEO Sell 42.5 -8,092 -1.22% $207.8K
Aug 26, 2025 Aug 27, 2025 Tenable Holdings, Inc. CEO Sell 42.5 -2,541 -2.36% $75.8K
Aug 22, 2025 Aug 26, 2025 Tenable Holdings, Inc. CEO Sell 40.0 -28,500 -21.79% $862.1K
May 27, 2025 May 29, 2025 Tenable Holdings, Inc. CEO Sell 42.5 -2,483 -3.30% $80.6K
May 22, 2025 May 27, 2025 Tenable Holdings, Inc. CEO Sell 42.5 -5,577 -6.90% $178.4K
Feb 26, 2025 Feb 28, 2025 Tenable Holdings, Inc. CEO Sell 40.0 -10,862 -14.62% $414.6K
Feb 24, 2025 Feb 26, 2025 Tenable Holdings, Inc. CEO Sell 42.5 -3,606 -4.63% $138.8K
Feb 18, 2025 Feb 20, 2025 Tenable Holdings, Inc. CEO Sell 42.5 -1,341 -3.15% $53.1K
Nov 27, 2024 Dec 2, 2024 Tenable Holdings, Inc. COO Sell 45.0 -939 -2.41% $40.3K
Nov 26, 2024 Nov 27, 2024 Tenable Holdings, Inc. COO Sell 28.8 -3,423 -8.07% $145.7K
Nov 22, 2024 Nov 26, 2024 Tenable Holdings, Inc. COO Sell 42.5 -2,343 -5.93% $100.1K
Nov 20, 2024 Nov 22, 2024 Tenable Holdings, Inc. COO Sell 45.0 -823 -2.32% $33.5K
Nov 18, 2024 Nov 20, 2024 Tenable Holdings, Inc. COO Sell 42.5 -2,209 -5.86% $90K
Aug 26, 2024 Aug 28, 2024 Tenable Holdings, Inc. COO Sell 25.0 -4,334 -11.57% $179.9K
Aug 22, 2024 Aug 26, 2024 Tenable Holdings, Inc. COO Sell 42.5 -2,357 -6.81% $97.9K
Aug 21, 2024 Aug 22, 2024 Tenable Holdings, Inc. COO Sell 45.0 -818 -2.68% $34.5K
Aug 19, 2024 Aug 21, 2024 Tenable Holdings, Inc. COO Sell 42.5 -2,224 -6.79% $94.2K
Jul 30, 2024 Aug 1, 2024 Tenable Holdings, Inc. COO Sell 25.0 -4,700 -14.28% $230.3K
May 28, 2024 May 29, 2024 Tenable Holdings, Inc. COO Sell 45.0 -949 -2.80% $41.7K
May 23, 2024 May 28, 2024 Tenable Holdings, Inc. COO Sell 32.5 -5,752 -5.33% $248.9K
May 21, 2024 May 23, 2024 Tenable Holdings, Inc. COO Sell 45.0 -820 -2.70% $35.7K
May 17, 2024 May 21, 2024 Tenable Holdings, Inc. COO Sell 42.5 -2,219 -6.82% $97.1K
Mar 20, 2024 Mar 22, 2024 Tenable Holdings, Inc. COO Sell 7.5 -10,824 -27.88% $530.4K
Feb 27, 2024 Feb 29, 2024 Tenable Holdings, Inc. COO Sell 17.5 -7,122 -15.73% $335.6K
Feb 23, 2024 Feb 27, 2024 Tenable Holdings, Inc. COO Sell 40.0 -8,794 -8.69% $419.6K
Feb 20, 2024 Feb 22, 2024 Tenable Holdings, Inc. COO Sell 37.5 -2,539 -3.10% $119K
Feb 7, 2024 Feb 9, 2024 Tenable Holdings, Inc. COO Sell 5.0 -26,175 -48.93% $1.3M
Feb 5, 2024 Feb 7, 2024 Tenable Holdings, Inc. COO Sell 42.5 -3,976 -6.92% $188.2K
Nov 28, 2023 Nov 30, 2023 Tenable Holdings, Inc. COO Sell 45.0 -951 -2.10% $40K
Nov 22, 2023 Nov 27, 2023 Tenable Holdings, Inc. COO Sell 37.5 -3,328 -3.65% $133.2K
Nov 17, 2023 Nov 21, 2023 Tenable Holdings, Inc. COO Sell 32.5 -4,554 -5.11% $181.4K
Nov 3, 2023 Nov 7, 2023 Tenable Holdings, Inc. COO Sell 42.5 -6,368 -12.79% $235.2K
Aug 25, 2023 Aug 29, 2023 Tenable Holdings, Inc. COO Sell 45.0 -921 -2.45% $39.4K
Aug 22, 2023 Aug 24, 2023 Tenable Holdings, Inc. COO Sell 17.5 -15,115 -17.23% $678.3K
Aug 17, 2023 Aug 21, 2023 Tenable Holdings, Inc. COO Sell 42.5 -2,195 -4.42% $97.5K
Aug 3, 2023 Aug 7, 2023 Tenable Holdings, Inc. COO Sell 40.0 -6,396 -12.41% $301.2K
May 23, 2023 May 25, 2023 Tenable Holdings, Inc. COO Sell 42.5 -2,516 -6.25% $94.5K
May 17, 2023 May 19, 2023 Tenable Holdings, Inc. COO Sell 42.5 -2,203 -5.91% $84.3K
May 3, 2023 May 5, 2023 Tenable Holdings, Inc. COO Sell 42.5 -6,245 -16.03% $219.7K
Feb 24, 2023 Feb 28, 2023 Tenable Holdings, Inc. COO Sell 40.0 -9,140 -26.12% $398.3K
Feb 17, 2023 Feb 22, 2023 Tenable Holdings, Inc. COO Sell 42.5 -1,370 -8.85% $58.7K
Feb 3, 2023 Feb 7, 2023 Tenable Holdings, Inc. COO Sell 42.5 -4,002 -26.81% $173.1K
Nov 17, 2022 Nov 21, 2022 Tenable Holdings, Inc. COO Sell 10.0 -4,561 -71.43% $175.8K