Mark C. Thurmond - Aug 25, 2023 Form 4 Insider Report for Tenable Holdings, Inc. (TENB)

Role: Chief Operating Officer
Signature: /s/ David Bartholomew, Attorney-in-Fact
Stock symbol: TENB
Transactions as of: Aug 25, 2023
Transactions value $: -$39,354
Form type: 4
Date filed: 8/29/2023, 08:21 PM
Previous filing: Aug 24, 2023
Next filing: Nov 7, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TENB	Common Stock	Sale	-$39.4K	-921	-2.45%	$42.73	36.7K	Aug 25, 2023	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id	Content
F1	The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.