Tenable TENB insider updates holdings after RSU settlements

Rhea-AI Filing Summary

Tenable Holdings, Inc. (TENB) reported insider equity activity on a Form 4 for its Principal Accounting Officer. On 11/24/2025, multiple tranches of Restricted Stock Units (RSUs) were exercised and settled into common stock, reflected with transaction code M at an exercise price of $0.

To cover income tax withholding on these RSU settlements, the issuer withheld shares of common stock, reported with transaction code F, totaling 666, 640, and 602 shares at a price of $25.68 per share, which is explicitly noted as not representing open‑market sales. After the reported transactions, the reporting person directly beneficially owned 63,497 shares of Tenable common stock.

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
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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^*

Anschutz Barron

(Last) (First) (Middle)

C/O TENABLE HOLDINGS, INC.

6100 MERRIWEATHER DRIVE

(Street)

COLUMBIA MD 21044

(City) (State) (Zip)

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

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

	Director		10% Owner
	Officer (give title below)	X	Other (specify below)
			Principal Accounting Officer

3. Date of Earliest Transaction (Month/Day/Year)
11/24/2025

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

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

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

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	11/24/2025		M		1,390	A	$0	62,810	D
Common Stock	11/24/2025		F		666(1)	D	$25.68	62,144	D
Common Stock	11/24/2025		M		1,337	A	$0	63,481	D
Common Stock	11/24/2025		F		640(1)	D	$25.68	62,841	D
Common Stock	11/24/2025		M		1,258	A	$0	64,099	D
Common Stock	11/24/2025		F		602(1)	D	$25.68	63,497	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
Restricted Stock Units	(2)	11/24/2025		M			1,390	(3)	(3)	Common Stock	1,390	$0	1,390	D
Restricted Stock Units	(2)	11/24/2025		M			1,337	(4)	(4)	Common Stock	1,337	$0	6,685	D
Restricted Stock Units	(2)	11/24/2025		M			1,258	(5)	(5)	Common Stock	1,258	$0	11,322	D

Explanation of Responses:

1. 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.

2. Each RSU represents a contingent right to receive one share of Issuer common stock.

3. 25% of the shares underlying the RSUs vested on February 22, 2023, 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.

4. 25% of the shares underlying the RSUs vested on February 22, 2024, 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.

5. 25% of the shares underlying the RSUs vested on February 24, 2025, 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.

Remarks:

	/s/ David Bartholomew, Attorney-in-Fact	11/25/2025
	** 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.

FAQ

What did Tenable Holdings (TENB) report in this Form 4 filing?

The Form 4 reports RSU settlements for a Tenable Holdings Principal Accounting Officer, where Restricted Stock Units were converted into shares of common stock on 11/24/2025.

Were any Tenable (TENB) shares actually sold in the market in this Form 4?

The filing states that 666, 640, and 602 shares were withheld by the issuer at $25.68 per share to satisfy tax obligations and explicitly notes this does not represent a sale.

How many Tenable (TENB) shares does the insider own after these transactions?

Following the reported RSU settlements and tax withholding, the reporting person directly beneficially owned 63,497 shares of Tenable common stock.

What do the RSUs in this Tenable (TENB) Form 4 represent?

Each RSU represents a contingent right to receive one share of Tenable common stock, subject to vesting conditions and the reporting person’s continuous service.

How do the Tenable (TENB) RSUs vest for this reporting person?

For the reported RSU grants, 25% of the shares vested on specified dates in 2023, 2024, and 2025, with the remainder vesting in equal quarterly installments over 3 years, subject to continuous service and potential accelerated vesting in specified circumstances.

What transaction codes appear in this Tenable (TENB) Form 4 and what do they mean?

The Form 4 uses code M for the exercise or settlement of RSUs into common stock at $0 exercise price, and code F for shares withheld to satisfy tax withholding obligations at $25.68 per share.