Mark C. Thurmond - Nov 24, 2025 Form 4 Insider Report for Tenable Holdings, Inc. (TENB)

Role
Co-Chief Executive Officer, Director
Signature
/s/ David Bartholomew, Attorney-in-Fact
Stock symbol
TENB
Transactions as of
Nov 24, 2025
Transactions value $
-$207,803
Form type
4
Date filed
11/25/2025, 07:40 PM
Previous filing
Aug 27, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Thurmond Mark C. Co-Chief Executive Officer, Director C/O TENABLE HOLDINGS, INC., 6100 MERRIWEATHER DRIVE, COLUMBIA /s/ David Bartholomew, Attorney-in-Fact 2025-11-25 0001651579

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction TENB Common Stock Options Exercise $0 +1.36K +1.3% $0.00 106K Nov 24, 2025 Direct
transaction TENB Common Stock Tax liability -$16.9K -660 -0.62% $25.68 106K Nov 24, 2025 Direct F1
transaction TENB Common Stock Options Exercise $0 +1.16K +1.1% $0.00 107K Nov 24, 2025 Direct
transaction TENB Common Stock Tax liability -$14.4K -562 -0.53% $25.68 106K Nov 24, 2025 Direct F1
transaction TENB Common Stock Options Exercise $0 +2.27K +2.13% $0.00 109K Nov 24, 2025 Direct
transaction TENB Common Stock Tax liability -$28.2K -1.1K -1.01% $25.68 107K Nov 24, 2025 Direct F1
transaction TENB Common Stock Options Exercise $0 +3.86K +3.59% $0.00 111K Nov 24, 2025 Direct
transaction TENB Common Stock Tax liability -$47.9K -1.87K -1.68% $25.68 109K Nov 24, 2025 Direct F1
transaction TENB Common Stock Options Exercise $0 +3.71K +3.39% $0.00 113K Nov 24, 2025 Direct
transaction TENB Common Stock Tax liability -$46.1K -1.8K -1.59% $25.68 111K Nov 24, 2025 Direct F1
transaction TENB Common Stock Options Exercise $0 +4.37K +3.92% $0.00 116K Nov 24, 2025 Direct
transaction TENB Common Stock Tax liability -$54.2K -2.11K -1.82% $25.68 114K Nov 24, 2025 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 -1.36K -49.96% $0.00 1.37K Nov 24, 2025 Common Stock 1.36K Direct F2, F3
transaction TENB Performance Restricted Stock Units Options Exercise $0 -1.16K -16.65% $0.00 5.82K Nov 24, 2025 Common Stock 1.16K Direct F2, F4
transaction TENB Performance Restricted Stock Units Options Exercise $0 -2.27K -10% $0.00 20.4K Nov 24, 2025 Common Stock 2.27K Direct F2, F5
transaction TENB Restricted Stock Units Options Exercise $0 -3.86K -50% $0.00 3.86K Nov 24, 2025 Common Stock 3.86K Direct F2, F6
transaction TENB Restricted Stock Units Options Exercise $0 -3.71K -16.67% $0.00 18.6K Nov 24, 2025 Common Stock 3.71K Direct F2, F7
transaction TENB Restricted Stock Units Options Exercise $0 -4.37K -10% $0.00 39.3K Nov 24, 2025 Common Stock 4.37K Direct F2, F8
* 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 22, 2023, the Compensation Committee of the Issuer's Board of Directors certified the achievement of the Performance Restricted Stock Units (PRSUs) granted on February 23, 2022 and determined a 106% payout for the measurement period based on the Issuer's fiscal year 2022 criteria. 25% of the shares underlying the PRSUs vested on February 23, 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.
F4 On February 21, 2024, the Compensation Committee of the Issuer's Board of Directors certified the achievement of the Performance Restricted Stock Units (PRSUs) granted on February 22, 2023 and determined a 93.9% payout for the measurement period based on the Issuer's fiscal year 2023 criteria. 25% of the shares underlying the PRSUs 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.
F5 On February 13, 2025, the Compensation Committee of the Issuer's Board of Directors certified the achievement of the Performance Restricted Stock Units (PRSUs) granted on February 22, 2024 and determined a 96.4% payout for the measurement period based on the Issuer's fiscal year 2024 criteria. 25% of the shares underlying the PRSUs vested on February 22, 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.
F6 25% of the shares underlying the RSUs vested on February 23, 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.
F7 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.
F8 25% of the shares underlying the RSUs vested on February 22, 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.