TENB Form 3 Filed — CFO Matthew C. Brown States No Beneficial Ownership

Rhea-AI Filing Summary

Matthew Charles Brown, serving as Chief Financial Officer of Tenable Holdings, Inc. (TENB), filed an Initial Statement of Beneficial Ownership (Form 3) reflecting the event date 08/21/2025. The filing states that the reporting person does not beneficially own any securities of the issuer. The form is executed by an attorney-in-fact and includes an Exhibit 24 power of attorney. This filing is a routine disclosure under Section 16 reporting the officer's initial status and confirms no direct or indirect ownership position was recorded on the form.

Positive

• Compliance disclosure filed for an officer under Section 16, demonstrating regulatory adherence
• Exhibit 24 power of attorney included, indicating proper signature delegation and documentation

Negative

• None.

Insights

Financial Analyst

TL;DR: Routine initial Section 16 filing by TENB CFO showing no beneficial ownership; neutral for valuation.

The Form 3 documents that Matthew C. Brown, as CFO, filed an initial ownership statement for Tenable Holdings with an event date of 08/21/2025 and reported no securities beneficially owned. For investors and analysts, this is a compliance item rather than a signal about company performance, since it does not disclose purchases, sales, or option grants that would affect share count or insider alignment with shareholders.

Corporate Governance Expert

TL;DR: Disclosure is compliant and transparent but contains no material governance changes or transactions.

The filing satisfies Section 16 initial reporting requirements and includes an Exhibit 24 power of attorney, suggesting proper delegation for signature. Because the form reports no direct or indirect ownership, there are no governance or conflict-of-interest items disclosed. This is informational and not materially impactful to stakeholders.

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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

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1. Name and Address of Reporting Person^*

Brown Matthew Charles

(Last) (First) (Middle)

C/O TENABLE HOLDINGS, INC.

6100 MERRIWEATHER DRIVE

(Street)

COLUMBIA MD 21044

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
08/21/2025

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

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

No securities beneficially owned. Exhibit List - Exhibit 24 - Power of Attorney

No securities are beneficially owned.

	/s/ David Bartholomew, Attorney-in-Fact	08/25/2025
	** 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 5 (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 Matthew Charles Brown report on the TENB Form 3?

The filing states no securities are beneficially owned by Matthew Charles Brown as of the event date 08/21/2025.

What is the reporting person's role at Tenable Holdings (TENB)?

The Form 3 identifies the reporting person as a Director and Chief Financial Officer of Tenable Holdings, Inc.

Was the Form 3 signed directly by the reporting person?

The document shows a signature by David Bartholomew, Attorney-in-Fact dated 08/25/2025, and includes Exhibit 24 (power of attorney).

Does this Form 3 disclose any option grants, purchases, or sales?

No. The Form 3 explicitly states no securities beneficially owned and contains no derivative or transaction entries.

Is this filing material to Tenable's financial results or ownership structure?

No. This is a routine insider disclosure reporting no ownership and does not change aggregate share counts or financial metrics.