Tenable officer Anschutz proposes $510K share sale

Fidelity Brokerage Services LLC is named in the sale information, and NASDAQ is listed as the exchange for the proposed transaction.

Available on EDGAR 11/02/2026 - 04:31 PM EST Accepted by SEC EDGAR 11/02/2026 - 04:30 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Tenable Holdings, Inc. (TENB) officer James B. Anschutz reported a proposed sale of 10,000 common shares, with an aggregate market value of $510,000. The securities history lists restricted-stock vesting lots, including 881 shares on November 19, 2021.

Key Figures

Common shares proposed for sale: 10,000 shares Aggregate market value: $510,000 Restricted-stock vesting: 881 shares +1 more

4 metrics

Common shares proposed for sale 10,000 shares Proposed sale

Aggregate market value $510,000 Proposed sale

Restricted-stock vesting 881 shares November 19, 2021

Restricted-stock vesting 789 shares November 20, 2021

Key Terms

Rule 144, Restricted Stock Vesting, attorney-in-fact

3 terms

Rule 144 regulatory

"paragraph (a) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Vesting technical

"Restricted Stock Vesting"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

attorney-in-fact technical

"as attorney-in-fact for James B. Anschutz"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many TENB shares did James B. Anschutz propose to sell?

The notice lists a proposed sale of 10,000 common shares, with an aggregate market value of $510,000.

Which broker and exchange are listed for the proposed TENB sale?

Fidelity Brokerage Services LLC is named in the sale information, and NASDAQ is listed as the exchange.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001309403
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Tenable Holdings, Inc.
SEC File Number	001-38600
Address of Issuer	6100 MERRIWEATHER DRIVE COLUMBIA MARYLAND 21044
Phone	410-872-0555
Name of Person for Whose Account the Securities are To Be Sold	Anschutz Barron
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	10000	510000.00	110139983	11/02/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	11/19/2021	Restricted Stock Vesting	Issuer			881	11/19/2021	Compensation
Common	11/20/2021	Restricted Stock Vesting	Issuer			789	11/20/2021	Compensation
Common	02/17/2022	Restricted Stock Vesting	Issuer			1748	02/17/2022	Compensation
Common	02/19/2022	Restricted Stock Vesting	Issuer			614	02/19/2022	Compensation
Common	02/20/2022	Restricted Stock Vesting	Issuer			626	02/20/2022	Compensation
Common	05/20/2022	Restricted Stock Vesting	Issuer			628	05/20/2022	Compensation
Common	08/17/2023	Restricted Stock Vesting	Issuer			292	08/17/2023	Compensation
Common	02/17/2024	Restricted Stock Vesting	Issuer			393	02/17/2024	Compensation
Common	02/19/2024	Restricted Stock Vesting	Issuer			582	02/19/2024	Compensation
Common	02/22/2024	Restricted Stock Vesting	Issuer			844	02/22/2024	Compensation
Common	02/23/2024	Restricted Stock Vesting	Issuer			1670	02/23/2024	Compensation
Common	02/26/2024	Restricted Stock Vesting	Issuer			933	02/26/2024	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks	Barron Anschutz and James B. Anschutz are one and the same person.
Date of Notice	11/02/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Jared Cook, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for James B. Anschutz
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)