Stephen Riddick - 19 May 2021 Form 4 Insider Report for Tenable Holdings, Inc. (TENB)

Role: General Counsel & Secretary
Signature: /s/ David Bartholomew, Attorney-in-Fact
Issuer symbol: TENB
Transactions as of: 19 May 2021
Transactions value $: -$75,414
Form type: 4
Filing time: 21 May 2021, 16:31:05 UTC
Previous filing: 12 May 2021
Next filing: 24 May 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TENB	Common Stock	Options Exercise	$0	+3,968	+18.55%	$0	25,363	19 May 2021	Direct
transaction	TENB	Common Stock	Sale	-$75,414	-1,869	-7.37%	$40.35	23,494	20 May 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	Restricted Stock Units	Options Exercise	$0	-3,968	-8.33%	$0	43,651	19 May 2021	Common Stock	3,968		Direct	F2, F3

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

Explanation of Responses:

Id	Content
F1	The sale reported on this Form 4 represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. The sale occurred automatically to satisfy the tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary trade by the Reporting Person.
F2	Each restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock.
F3	On February 19, 2021, 25% of the shares underlying the RSUs granted on February 19, 2020 vested, and the remainder vest in equal quarterly installments over three years, subject to the Reporting Person's continuous service with the Issuer as of the applicable vesting date, and subject to accelerated vesting in specified circumstances.