Stephen A. Vintz - 25 Feb 2026 Form 4 Insider Report for Tenable Holdings, Inc. (TENB)

Role: Co-Chief Executive Officer, Director
Signature: /s/ David Bartholomew, Attorney-in-Fact
Issuer symbol: TENB
Transactions as of: 25 Feb 2026
Net transactions value: -$221,673
Form type: 4
Filing time: 27 Feb 2026, 17:14:04 UTC
Previous filing: 25 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Vintz Stephen A	Co-Chief Executive Officer, Director	C/O TENABLE HOLDINGS, INC., 6100 MERRIWEATHER DRIVE, COLUMBIA	/s/ David Bartholomew, Attorney-in-Fact	27 Feb 2026	0001345943

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TENB	Common Stock	Options Exercise	$0	+24,381	+5.9%	$0.000000	440,298	25 Feb 2026	Direct
transaction	TENB	Common Stock	Tax liability	$221,673	-11,667	-2.6%	$19.00	428,631	25 Feb 2026	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	Performance Restricted Stock Units	Options Exercise	$0	-24,381	-25%	$0.000000	73,147	25 Feb 2026	Common Stock	24,381		Direct	F2, F3
transaction	TENB	Restricted Stock Units	Award	$0	+341,847		$0.000000	341,847	26 Feb 2026	Common Stock	341,847		Direct	F2, F4

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

Explanation of Responses:

Id	Content
F1	Represents the number of shares of Common Stock that have been withheld by the issuer to satisfy its income tax withholding and remittance obligations in connection with the net settlement of the Restricted Stock Units ("RSUs") and does not represent a sale.
F2	Each RSU represents a contingent right to receive one share of Issuer common stock.
F3	On February 25, 2026, the Compensation Committee of the Issuer's Board of Directors certified the achievement of the Performance Restricted Stock Units (PRSUs) granted on February 21, 2025 and determined a 97.2% payout for the measurement period based on the Issuer's fiscal year 2025 criteria. 25% of the shares underlying the PRSUs vested on February 25, 2026, with the remainder vesting in equal quarterly installments over 3 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.
F4	25% of the shares underlying the RSUs vest on February 22, 2027, with the remainder vesting in equal quarterly installments over 3 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.