Tenable (TENB) Co-CEO Vintz exercises 105,000 options with 60,917 shares withheld

Rhea-AI Filing Summary

Tenable Holdings Co-Chief Executive Officer Stephen A. Vintz exercised employee stock options for 105,000 shares of Common Stock at an exercise price of $4.15 per share on May 8, 2026. This converted a derivative option grant into directly held shares.

To cover the exercise price and related tax withholding obligations, 60,917 shares were withheld by the company at a reference value of $21.29 per share, which the filing notes was not a market sale. Following these transactions, Vintz directly holds 472,714 shares of Tenable common stock, and the exercised option covering 105,000 shares is now fully exhausted.

Insider Trade Summary

105,000 shares exercised/converted

Mixed 3 txns

Insider Vintz Stephen A

Role Co-Chief Executive Officer

Type	Security	Shares	Price	Value
Exercise	Employee Stock Option (right to buy)	105,000	$0.00	--
Exercise	Common Stock	105,000	$4.15	$436K
Tax Withholding	Common Stock	60,917	$21.29	$1.30M

Holdings After Transaction: Employee Stock Option (right to buy) — 0 shares (Direct, null); Common Stock — 533,631 shares (Direct, null)

Footnotes (1)

1. Represents the number of shares of Common Stock withheld by the Issuer to satisfy the exercise price and the related tax withholding obligations in connection with the net exercise of the stock options reported herein. This transaction does not involve a market sale of shares. 100% of the shares underlying this option vested as of June 30, 2020.

Key Figures

Options exercised: 105,000 shares Exercise price: $4.15 per share Shares withheld for taxes/exercise: 60,917 shares +4 more

7 metrics

Options exercised 105,000 shares Employee stock option exercise into Common Stock on May 8, 2026

Exercise price $4.15 per share Price paid per share for the 105,000-share option exercise

Shares withheld for taxes/exercise 60,917 shares Shares withheld by issuer to cover exercise price and tax obligations

Withholding reference price $21.29 per share Value used for shares withheld in tax-withholding disposition

Shares held after transactions 472,714 shares Direct Tenable Common Stock holdings after May 8, 2026 transactions

Exercised option remaining balance 0 shares Employee Stock Option (right to buy) following full 105,000-share exercise

Exercised option expiration June 30, 2026 Original expiration date of the exercised employee stock option

Key Terms

Employee Stock Option (right to buy), net exercise, tax withholding obligations, derivative security, +1 more

5 terms

Employee Stock Option (right to buy) financial

"security_title: "Employee Stock Option (right to buy)""

net exercise financial

"in connection with the net exercise of the stock options reported herein"

tax withholding obligations financial

"to satisfy the exercise price and the related tax withholding obligations"

derivative security financial

"transaction_code_description: "Exercise or conversion of derivative security""

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

Common Stock financial

"security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

Vintz Stephen A

(Last) (First) (Middle)

C/O TENABLE HOLDINGS, INC.

6100 MERRIWEATHER DRIVE

(Street)

COLUMBIA MARYLAND 21044

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Tenable Holdings, Inc. [ TENB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Co-Chief Executive Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/08/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/08/2026		M		105,000	A	$4.15	533,631	D
Common Stock	05/08/2026		F		60,917(1)	D	$21.29	472,714	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (right to buy)	$4.15	05/08/2026		M			105,000	(2)	06/30/2026	Common Stock	105,000	$0	0	D

Explanation of Responses:

1. Represents the number of shares of Common Stock withheld by the Issuer to satisfy the exercise price and the related tax withholding obligations in connection with the net exercise of the stock options reported herein. This transaction does not involve a market sale of shares.

2. 100% of the shares underlying this option vested as of June 30, 2020.

Remarks:

	/s/ David Bartholomew, Attorney-in-Fact	05/12/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did Tenable (TENB) Co-CEO Stephen Vintz report?

Stephen Vintz reported exercising employee stock options for 105,000 shares of Tenable Common Stock and a related share withholding. The filing shows option exercise and tax-related share withholding, rather than open-market buying or selling of shares.

How many Tenable (TENB) shares did Stephen Vintz acquire and at what price?

Vintz acquired 105,000 shares of Tenable Common Stock by exercising employee stock options at an exercise price of $4.15 per share. This transaction converted a previously granted option award into directly held common shares.

Why were 60,917 Tenable (TENB) shares withheld in Stephen Vintz’s Form 4?

The filing states 60,917 shares were withheld by Tenable to satisfy the option exercise price and related tax withholding obligations. It explicitly notes this withholding did not involve a market sale of shares into the open market.

How many Tenable (TENB) shares does Stephen Vintz hold after these transactions?

After the option exercise and related share withholding, Stephen Vintz directly holds 472,714 shares of Tenable Common Stock. This reflects his updated share ownership position following the May 8, 2026 transactions reported in the Form 4.

Were Stephen Vintz’s Tenable (TENB) transactions open-market sales or routine option exercises?

The transactions were routine option-related actions, not open-market sales. Vintz exercised stock options for 105,000 shares, and 60,917 shares were withheld by the issuer solely to cover the exercise price and associated tax obligations.

What happened to the employee stock option exercised by Stephen Vintz at Tenable (TENB)?

The employee stock option for 105,000 underlying shares, which was fully vested as of June 30, 2020, was fully exercised. After the exercise, the filing shows zero remaining shares under that specific option award.