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CIK 0001660280 · Large accelerated filer

Tenable Holdings, Inc.

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Ticker
TENB
Exchange
Nasdaq
Industry
Services-Prepackaged Software
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
475580846
Phone
410-872-0555
Business address
6100 MERRIWEATHER DRIVE, COLUMBIA, MD, 21044
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$2,045,396
in 3 filings

Net −$2,045,396. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. SEAWELL A BROOKE −$1.5M Director sold 100% of stake
  2. Anschutz Barron −$510K Chief Accounting Officer sold 13% of stake
  3. Zecher Linda Kay −$49K Director sold 17% of stake

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Shares withheld for taxes −342 $17.55 $6K 115,423
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Option exercise +2,267 117,690
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Shares withheld for taxes −666 $17.55 $12K 117,024
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Option exercise +3,857 120,881
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Shares withheld for taxes −1,865 $17.55 $33K 119,016
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Option exercise +3,713 122,729
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Shares withheld for taxes −1,090 $17.55 $19K 121,639
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Option exercise +46,586 168,225
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Shares withheld for taxes −15,635 $17.55 $274K 152,590
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Option exercise +4,368 156,958
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Shares withheld for taxes −1,283 $17.55 $23K 155,675
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Option exercise · Performance Restricted Stock Units −1,365 0
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Option exercise · Performance Restricted Stock Units −1,162 4,654
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Option exercise · Performance Restricted Stock Units −2,267 18,140
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Option exercise · Restricted Stock Units −3,857 0
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Option exercise · Restricted Stock Units −3,713 14,852
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Option exercise · Restricted Stock Units −46,586 93,172
2026-02-23 Thurmond Mark C. Co-Chief Executive Officer Option exercise · Restricted Stock Units −4,368 34,944
2026-02-23 Vintz Stephen A Co-Chief Executive Officer Option exercise +1,882 375,378
2026-02-23 Vintz Stephen A Co-Chief Executive Officer Shares withheld for taxes −619 $17.55 $11K 374,759

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