144 0001345943 XXXXXXXX LIVE 0001660280 Tenable Holdings, Inc. 001-38600 6100 MERRIWEATHER DRIVE COLUMBIA MD 21044 410-872-0555 Vintz Stephen A Officer Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

29196 883275.35 121094958 08/25/2025 NASDAQ Common 08/22/2025 Restricted Stock Vesting Issuer N 29196 08/22/2025 Compensation N Stephen Vintz

6100 Merriweather Drive Columbia MD 21044

Common 05/27/2025 3386 109873.33 Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution. 08/25/2025 /s/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Stephen Vintz