Stephen A. Riddick - Jun 1, 2021 Form 4 Insider Report for Tenable Holdings, Inc. (TENB)

Role: General Counsel & Secretary
Signature: /s/ David Bartholomew, Attorney-in-Fact
Stock symbol: TENB
Transactions as of: Jun 1, 2021
Transactions value $: -$61,976
Form type: 4
Date filed: 6/2/2021, 05:16 PM
Previous filing: May 24, 2021
Next filing: Jun 30, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TENB	Common Stock	Options Exercise	$39.2K	+2.42K	+9.65%	$16.21	27.5K	Jun 1, 2021	Direct
transaction	TENB	Common Stock	Sale	-$101K	-2.42K	-8.8%	$41.82	25.1K	Jun 1, 2021	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	TENB	Employee Stock Option (right to buy)	Options Exercise	$0	-2.42K	-2.63%	$0.00	89.5K	Jun 1, 2021	Common Stock	2.42K	$16.21	Direct	F2

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

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.
F2	25% of the shares underlying the option vest in equal monthly installments over the twelve-month period beginning on the second anniversary of June 21, 2018, and ending on the third anniversary, with the remainder vesting monthly over the twelve-month period thereafter, subject to the reporting person's continuous service with the Issuer as of each vesting date, and subject to accelerated vesting in specified circumstances.

Content

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

25% of the shares underlying the option vest in equal monthly installments over the twelve-month period beginning on the second anniversary of June 21, 2018, and ending on the third anniversary, with the remainder vesting monthly over the twelve-month period thereafter, subject to the reporting person's continuous service with the Issuer as of each vesting date, and subject to accelerated vesting in specified circumstances.