Arkolith/Insider Trading/TENB/Form 4

Thurmond Mark C.

Co-Chief Executive Officer, DirectorTenable Holdings, Inc. (TENB) · full profile →Form 4 · filed Feb 25, 2026
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
21
14 non-derivative · 7 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Feb 23, 2026Option exercise(M)1K—$0116K
Feb 23, 2026Option exercise(M)4K—$0157K
Feb 23, 2026Tax withholding(F)16K$17.55$274K153K
Feb 23, 2026Option exercise(M)47K—$0168K
Feb 23, 2026Tax withholding(F)1K$17.55$19K122K
Feb 23, 2026Option exercise(M)4K—$0123K
Feb 23, 2026Tax withholding(F)2K$17.55$33K119K
Feb 23, 2026Option exercise(M)4K—$0121K
Feb 23, 2026Option exercise(M)1K—$0115K
Feb 23, 2026Tax withholding(F)401$17.55$7K115K
Feb 23, 2026Tax withholding(F)1K$17.55$23K156K
Feb 23, 2026Tax withholding(F)342$17.55$6K115K
Feb 23, 2026Option exercise(M)2K—$0118K
Feb 23, 2026Tax withholding(F)666$17.55$12K117K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Feb 23, 2026Option exercise(M)47K—$093K
Feb 23, 2026Option exercise(M)1K—$05K
Feb 23, 2026Option exercise(M)2K—$018K
Feb 23, 2026Option exercise(M)4K—$00
Feb 23, 2026Option exercise(M)1K—$00
Feb 23, 2026Option exercise(M)4K—$035K
Feb 23, 2026Option exercise(M)4K—$015K

Transaction Codes

M
Option exercise / conversion
F
Shares withheld for taxes

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001651579-26-000002) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML