A Brooke Seawell 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 A reports to the SEC
Open-market buys and sales
84 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Nov 2, 2026 | TENB | ↓ Sell | 15,000 | $50.33 | $755K | Direct | Nov 4, 2026 (2d) |
| Nov 2, 2026 | TENB | ↓ Sell | 15,000 | $48.73 | $731K | Trust | Nov 4, 2026 (2d) |
| Dec 15, 2025 | TENB | ↓ Sell | 115,000 | $24.82 | $2.9M | Trust | Dec 17, 2025 (2d) |
| Dec 2, 2025 | NVDA | ↓ Sell | 12,728 | $183.93 | $2.3M | By Administrative Trust | Dec 4, 2025 (2d) |
| Sep 9, 2025 | TENB | ↓ Sell | 15,000 | $30.80 | $462K | Trust | Sep 11, 2025 (2d) |
| Sep 4, 2025 | TENB | ↓ Sell | 4,622 | $30.12 | $139K | Trust | Sep 8, 2025 (4d) |
| Jul 14, 2025 | NVDA | ↓ Sell | 96,904 | $165.11 | $16.0M | By Administrative Trust | Jul 15, 2025 (1d) |
| Jul 10, 2025 | NVDA | ↓ Sell | 148,402 | $161.72 | $24.0M | By Administrative Trust | Jul 10, 2025 (0d) |
| Jul 7, 2025 | NVDA | ↓ Sell | 101,925 | $156.98 | $16.0M | By Administrative Trust | Jul 7, 2025 (0d) |
| Jul 1, 2025 | NVDA | ↓ Sell | 102,652 | $155.86 | $16.0M | By Administrative Trust | Jul 1, 2025 (0d) |
| Jun 27, 2025 | NVDA | ↓ Sell | 155,209 | $154.63 | $24.0M | By Administrative Trust | Jun 27, 2025 (0d) |
| Jun 24, 2025 | NVDA | ↓ Sell | 165,430 | $145.07 | $24.0M | By Administrative Trust | Jun 24, 2025 (0d) |
| May 28, 2024 | NVDA | ↓ Sell | 1,438 | $1117.72 | $1.6M | Direct | May 30, 2024 (2d) |
| Feb 9, 2024 | TENB | ↓ Sell | 4,962 | $51.12 | $254K | Direct | Feb 13, 2024 (4d) |
| Jun 14, 2023 | NVDA | ↓ Sell | 860 | $424.69 | $365K | Direct | Jun 15, 2023 (1d) |
| Nov 19, 2021 | NVDA | ↓ Sell | 856 | $328.91 | $282K | Direct | Nov 22, 2021 (3d) |
| Sep 1, 2021 | NVDA | ↓ Sell | 20,000 | $224.34 | $4.5M | By Trust | Sep 3, 2021 (2d) |
| Jun 16, 2021 | NVDA | ↓ Sell | 356 | $706.98 | $252K | Direct | Jun 21, 2021 (5d) |
| Jun 8, 2021 | TENB | ↓ Sell | 6,677 | $42.79 | $286K | Direct | Jun 10, 2021 (2d) |
| Dec 1, 2020 | NVDA | ↓ Sell | 356 | $540.52 | $192K | Direct | Dec 3, 2020 (2d) |
| Sep 15, 2020 | NVDA | ↓ Sell | 10,000 | $513.77 | $5.1M | Direct | Sep 17, 2020 (2d) |
| May 26, 2020 | NVDA | ↓ Sell | 629 | $366.27 | $230K | Direct | May 28, 2020 (2d) |
| May 21, 2020 | TENB | ↓ Sell | 6,740 | $29.45 | $198K | Direct | May 26, 2020 (5d) |
| Feb 18, 2020 | NVDA | ↓ Sell | 20,000 | $287.91 | $5.8M | Direct | Feb 20, 2020 (2d) |
| Dec 13, 2019 | NVDA | ↓ Sell | 963 | $225.85 | $217K | Direct | Dec 17, 2019 (4d) |
| Nov 26, 2019 | NVDA | ↓ Sell | 629 | $220.50 | $139K | Direct | Nov 26, 2019 (0d) |
| Nov 18, 2019 | NVDA | ↓ Sell | 20,000 | $212.75 | $4.3M | Direct | Nov 20, 2019 (2d) |
| Nov 28, 2018 | DATA | ↓ Sell | 649 | $118.54 | $77K | Direct | Nov 30, 2018 (2d) |
| Aug 27, 2018 | DATA | ↓ Sell | 648 | $108.34 | $70K | Direct | Aug 29, 2018 (2d) |
| Jul 30, 2018 | TENB | ↑ Buy | 30,000 | $23.00 | $690K | Direct | Jul 30, 2018 (0d) |
| Jun 5, 2018 | NVDA | ↓ Sell | 21,029 | $264.65 | $5.6M | Direct | Jun 6, 2018 (1d) |
| May 25, 2018 | DATA | ↓ Sell | 1,005 | $98.48 | $99K | Direct | May 25, 2018 (0d) |
| Feb 26, 2018 | DATA | ↓ Sell | 2,010 | $83.29 | $167K | Direct | Feb 28, 2018 (2d) |
| Nov 20, 2017 | NVDA | ↓ Sell | 1,029 | $214.10 | $220K | Direct | Nov 22, 2017 (2d) |
| Sep 1, 2017 | NVDA | ↓ Sell | 30,000 | $170.19 | $5.1M | Direct | Sep 6, 2017 (5d) |
| Aug 25, 2017 | DATA | ↓ Sell | 1,005 | $72.23 | $73K | Direct | Aug 25, 2017 (0d) |
| Jun 5, 2017 | DATA | ↓ Sell | 310 | $62.50 | $19K | Direct | Jun 7, 2017 (2d) |
| May 24, 2017 | NVDA | ↓ Sell | 3,107 | $140.00 | $435K | Direct | May 26, 2017 (2d) |
| May 22, 2017 | DATA | ↓ Sell | 7,039 | $60.40 | $425K | Direct | May 23, 2017 (1d) |
| Mar 20, 2017 | NVDA | ↓ Sell | 32,820 | $109.00 | $3.6M | Direct | Mar 21, 2017 (1d) |
| Dec 15, 2016 | NVDA | ↓ Sell | 3,106 | $96.90 | $301K | Direct | Dec 16, 2016 (1d) |
| Nov 14, 2016 | NVDA | ↓ Sell | 35,000 | $87.74 | $3.1M | Direct | Nov 14, 2016 (0d) |
| Sep 16, 2016 | NVDA | ↓ Sell | 30,000 | $62.52 | $1.9M | By Trust | Sep 19, 2016 (3d) |
| Jun 16, 2016 | NVDA | ↓ Sell | 5,142 | $47.01 | $242K | By Trust | Jun 20, 2016 (4d) |
| Feb 12, 2016 | DATA | ↑ Buy | 10,000 | $39.99 | $400K | Direct | Feb 12, 2016 (0d) |
| Dec 1, 2015 | NVDA | ↓ Sell | 5,141 | $32.52 | $167K | Direct | Dec 3, 2015 (2d) |
| Nov 9, 2015 | NVDA | ↓ Sell | 40,000 | $31.12 | $1.2M | By Trust | Nov 12, 2015 (3d) |
| Aug 10, 2015 | NVDA | ↓ Sell | 106,104 | $23.30 | $2.5M | By Trust | Aug 12, 2015 (2d) |
| May 14, 2015 | DATA | ↓ Sell | 5,796 | $112.02 | $649K | Direct | May 15, 2015 (1d) |
| Feb 13, 2015 | NVDA | ↓ Sell | 40,000 | $22.24 | $890K | Direct | Feb 18, 2015 (5d) |
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 A Brooke Seawell's insider trades
A Brooke Seawell is a director at Tenable Holdings (TENB). Since May 23, 2005, A has reported 3 open-market purchases worth $2.3M and 81 sales worth $208.6M on SEC Form 4. In the last 12 months: 4 sales ($6.7M).
Their filings also include grants and awards (56 filings), option exercises (46 filings), gifts (12 filings), other transactions (12 filings). 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.