Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 7 years
- Director since
- 2023
7 years of board service in total across 2 boards, counting each seat separately. Longest: Tenable Holdings Inc., 3 years.
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
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Tenable Holdings Inc. May 13, 202674.7%
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Tenable Holdings Inc. May 24, 202364.6%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Nov 2, 2026 | Tenable Holdings Inc. | Option exercise | +115,000 | $9.66 | $1,110,900 |
| Nov 2, 2026 | Tenable Holdings Inc. | Open-market sale | −15,000 | $50.33 | $754,950 |
| Nov 2, 2026 | Tenable Holdings Inc. | Open-market sale | −15,000 | $48.73 | $730,950 |
| Jun 25, 2026 | NVIDIA Corporation | Grant or award | +1,211 | — | — |
| May 13, 2026 | Tenable Holdings Inc. | Option exercise | +6,062 | — | — |
| Mar 17, 2026 | NVIDIA Corporation | Gift | −530 | — | — |
| Dec 15, 2025 | Tenable Holdings Inc. | Option exercise | +115,000 | $9.66 | $1,110,900 |
| Dec 15, 2025 | Tenable Holdings Inc. | Open-market sale | −115,000 | $24.82 | $2,854,300 |
| Dec 2, 2025 | NVIDIA Corporation | Open-market sale | −12,728 | $183.93 | $2,341,061 |
| Nov 24, 2025 | NVIDIA Corporation | Gift | −520,000 | — | — |
| Sep 9, 2025 | Tenable Holdings Inc. | Open-market sale | −15,000 | $30.80 | $462,000 |
| Sep 4, 2025 | Tenable Holdings Inc. | Open-market sale | −4,622 | $30.12 | $139,215 |
| Aug 29, 2025 | NVIDIA Corporation | Gift | −1,200,000 | — | — |
| Jul 14, 2025 | NVIDIA Corporation | Open-market sale | −5,984 | $162.67 | $973,417 |
| Jul 14, 2025 | NVIDIA Corporation | Open-market sale | −22,798 | $163.63 | $3,730,437 |
Questions about A. Brooke Seawell
What boards is A. Brooke Seawell on?
A. Brooke Seawell sits on the boards of NVIDIA Corporation and Tenable Holdings Inc.
How long has A. Brooke Seawell served on boards?
Our records show at least 7 years of board service across 2 boards, the earliest from 2023.
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