Matthew Charles Brown insider trades: Tenable Holdings (TENB) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Matthew reports to the SEC
Open-market buys and sales
12 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| May 4, 2026 | TENB | ↑ Buy | 12,000 | $21.54 | $258K | Direct | May 5, 2026 (1d) |
| Mar 3, 2025 | ALTR | ↓ Sell | 742 | $111.45 | $83K | Direct | Mar 5, 2025 (2d) |
| Feb 26, 2025 | ALTR | ↓ Sell | 3,811 | $111.53 | $425K | Direct | Feb 27, 2025 (1d) |
| Dec 23, 2024 | ALTR | ↓ Sell | 1,048 | $108.90 | $114K | Direct | Dec 26, 2024 (3d) |
| Mar 4, 2024 | ALTR | ↓ Sell | 883 | $85.32 | $75K | Direct | Mar 5, 2024 (1d) |
| Feb 28, 2024 | ALTR | ↓ Sell | 4,363 | $83.65 | $365K | Direct | Feb 29, 2024 (1d) |
| Mar 1, 2023 | ALTR | ↓ Sell | 3,477 | $63.84 | $222K | Direct | Mar 3, 2023 (2d) |
| Mar 7, 2022 | ALTR | ↓ Sell | 2,298 | $64.55 | $148K | Direct | Mar 9, 2022 (2d) |
| Aug 17, 2020 | NLOK | ↓ Sell | 531 | $22.94 | $12K | Direct | Aug 18, 2020 (1d) |
| Aug 11, 2020 | NLOK | ↓ Sell | 31,598 | $22.63 | $715K | Direct | Aug 12, 2020 (1d) |
| Feb 18, 2020 | NLOK | ↓ Sell | 2,619 | $21.39 | $56K | Direct | Jun 2, 2020 (105d) |
| Mar 7, 2019 | SYMC | ↓ Sell | 5,393 | $21.90 | $118K | Direct | Mar 8, 2019 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other TENB insiders
Open-market trades in the last 12 months
About Matthew Charles Brown's insider trades
Matthew Charles Brown is Chief Financial Officer at Tenable Holdings (TENB). Since Mar 7, 2019, Matthew has reported 1 open-market purchase worth $258K and 11 sales worth $2.3M on SEC Form 4. In the last 12 months: 1 buy ($258K).
Their filings also include grants and awards (21 filings), shares withheld for taxes (9 filings), option exercises (4 filings), shares returned to the company (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every TENB insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.