Mark C. Thurmond
CIK 1651579 · Co-Chief Executive Officer · last filed 2026-05-26
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$4.58M
Companies
2
Total Filings
54
Lifetime Open-Market Net
-$9.12M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| TENB | Co-Chief Executive Officer | 170,857 | $26.80 | $4.58M | -$9.12M | 49 | 2026-05-26 |
| QLIK TECHNOLOGIES INC (QLIK) Delisted | EVP, Worldwide Sales and Serv. | 0 | — | — | $0 | 5 | 2016-08-22 |
Recent Filings · Page 5 of 6
54 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2023-05-25 | TENB | Mixed | +2,702 | -$94.5K | EDGAR |
| 2023-05-19 | TENB | Mixed | +2,358 | -$84.3K | EDGAR |
| 2023-05-05 | TENB | Mixed | +6,857 | -$219.7K | EDGAR |
| 2023-02-28 | TENB | Sell (S) | −9,140 | -$398.3K | EDGAR |
| 2023-02-24 | TENB | Mixed | +20,877 | $0 | EDGAR |
| 2023-02-23 | TENB | Grant (A) | — | $0 | EDGAR |
| 2023-02-22 | TENB | Mixed | +3,191 | -$58.7K | EDGAR |
| 2023-02-07 | TENB | Mixed | +9,100 | -$173.1K | EDGAR |
| 2022-11-21 | TENB | Mixed | — | -$175.8K | EDGAR |
| 2016-08-22 | QLIK TECHNOLOGIES INC (QLIK) Delisted | Disp (D) | −65,000 | $0 | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.