STOCK TITAN

Tenable (TENB) director Zecher gains 6,062 shares, granted 9,718 RSUs

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Tenable Holdings director Linda Kay Zecher reported equity compensation activity involving common stock and restricted stock units (RSUs). She acquired 6,062 shares of common stock through the exercise of RSUs, bringing her directly held common stock position to 11,022 shares.

On the same date, she received a new grant of 9,718 RSUs, each representing a contingent right to one share of Tenable common stock. All shares underlying a prior RSU award had vested as of May 13, 2026, while the new RSUs vest 100% on the earlier of May 13, 2027 or the company’s next annual shareholder meeting, subject to continued service and certain acceleration conditions.

Positive

  • None.

Negative

  • None.
Insider Zecher Linda Kay
Role null
Type Security Shares Price Value
Exercise Restricted Stock Units 6,062 $0.00 --
Grant/Award Restricted Stock Units 9,718 $0.00 --
Exercise Common Stock 6,062 $0.00 --
Holdings After Transaction: Restricted Stock Units — 0 shares (Direct, null); Common Stock — 11,022 shares (Direct, null)
Footnotes (1)
  1. Each restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock. 100% of the shares underlying the RSUs vested as of May 13, 2026. 100% of the shares underlying the RSUs vest on the earlier of May 13, 2027 or the Issuer's next annual shareholder meeting, 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.
Common shares acquired 6,062 shares Common stock received from RSU exercise on May 13, 2026
Common shares held after 11,022 shares Direct Tenable common stock holdings following the reported transactions
New RSU grant 9,718 RSUs Restricted stock units granted on May 13, 2026, each for one common share
Vested prior RSUs 6,062 RSUs RSUs fully vested as of May 13, 2026 and converted into common stock
RSU vesting date (new grant) Earlier of May 13, 2027 or next annual meeting Vesting schedule for 9,718 newly granted RSUs, subject to continued service
RSU-to-share ratio 1 RSU : 1 share Each RSU represents a contingent right to one Tenable common share
Restricted Stock Units financial
"Each restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock."
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
RSU financial
"Each restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock."
Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.
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.
vesting financial
"100% of the shares underlying the RSUs vested as of May 13, 2026."
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
accelerated vesting financial
"subject to accelerated vesting in specified circumstances."
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SEC Form 4
FORM 4UNITED 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*
Zecher Linda Kay

(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)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/13/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock05/13/2026M6,062A$011,022D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units(1)05/13/2026M6,062 (2) (2)Common Stock6,062$00D
Restricted Stock Units(1)05/13/2026A9,718 (3) (3)Common Stock9,718$09,718D
Explanation of Responses:
1. Each restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock.
2. 100% of the shares underlying the RSUs vested as of May 13, 2026.
3. 100% of the shares underlying the RSUs vest on the earlier of May 13, 2027 or the Issuer's next annual shareholder meeting, 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-Fact05/15/2026
** Signature of Reporting PersonDate
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) director Linda Kay Zecher report?

Linda Kay Zecher reported acquiring 6,062 Tenable common shares via RSU exercise and receiving a new grant of 9,718 restricted stock units, each tied to one common share, as part of her director equity compensation.

How many Tenable (TENB) shares does Linda Kay Zecher hold after these transactions?

After the reported Form 4 transactions, Linda Kay Zecher directly holds 11,022 shares of Tenable common stock. This total reflects shares acquired through the exercise of 6,062 vested RSUs on May 13, 2026.

What are the terms of the 9,718 RSUs granted to Tenable (TENB) director Linda Kay Zecher?

Zecher received 9,718 restricted stock units, each representing a contingent right to one Tenable common share. These RSUs vest 100% on the earlier of May 13, 2027 or Tenable’s next annual shareholder meeting, subject to continuous service and possible accelerated vesting.

When did the previously granted RSUs for Tenable (TENB) director Linda Kay Zecher fully vest?

All shares underlying the RSUs associated with the 6,062-share exercise were fully vested as of May 13, 2026. That vesting enabled conversion of the RSUs into an equal number of Tenable common shares on the reported transaction date.

How do Linda Kay Zecher’s RSUs convert into Tenable (TENB) common stock?

Each restricted stock unit represents a contingent right to receive one Tenable common share. Once the RSUs vest under the specified schedule and conditions, they can be settled, resulting in delivery of an equal number of common shares to the holder.