Robert W. Duggan
Chief Executive Officer at Summit Therapeutics Inc.
Sits on 2 boards. Last updated September 28, 2026
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: Summit Therapeutics Inc., 3 years.
Chief executive roles
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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Pulse Biosciences Inc June 11, 202695.5%
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Pulse Biosciences Inc December 9, 202597.5%
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Summit Therapeutics Inc. June 12, 2025100.0%
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Summit Therapeutics Inc. June 12, 202499.9%
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Pulse Biosciences Inc June 6, 202497.0%
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Pulse Biosciences Inc May 25, 202395.7%
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Summit Therapeutics Inc. May 23, 2023100.0%
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 |
|---|---|---|---|---|---|
| Jun 12, 2026 | Summit Therapeutics Inc. | Open-market purchase | +3,810,000 | $13.12 | $49,987,200 |
| Jun 4, 2026 | Summit Therapeutics Inc. | Open-market purchase | +100,000 | $14.60 | $1,460,000 |
| May 11, 2026 | Pulse Biosciences Inc | Open-market purchase | +660,233 | $19.69 | $12,999,988 |
| Oct 21, 2025 | Summit Therapeutics Inc. | Grant or award | +13,980,789 | $18.74 | $261,999,986 |
| Oct 21, 2025 | Summit Therapeutics Inc. | Grant or award | +266,808 | $18.74 | $4,999,982 |
| Oct 21, 2025 | Summit Therapeutics Inc. | Open-market purchase | +26,680 | $18.74 | $499,983 |
| Sep 11, 2025 | Summit Therapeutics Inc. | Open-market purchase | +5,000 | $18.07 | $90,350 |
| Sep 10, 2025 | Pulse Biosciences Inc | Open-market purchase | +34,659 | $14.66 | $508,101 |
| Sep 10, 2025 | Summit Therapeutics Inc. | Open-market purchase | +333,394 | $17.68 | $5,894,406 |
| May 30, 2025 | Summit Therapeutics Inc. | Option exercise | +74,545 | $2.64 | $196,799 |
| Apr 8, 2025 | Summit Therapeutics Inc. | In-the-money exercise | +3,985,055 | $1.58 | $6,296,387 |
| Dec 18, 2024 | Pulse Biosciences Inc | In-the-money exercise | +5,187,824 | $11.00 | $57,066,064 |
| Dec 18, 2024 | Pulse Biosciences Inc | In-the-money exercise | +69,020 | $11.00 | $759,220 |
| Dec 18, 2024 | Pulse Biosciences Inc | In-the-money exercise | +49,312 | $11.00 | $542,432 |
| Dec 13, 2024 | Pulse Biosciences Inc | Open-market purchase | +55,256 | $17.18 | $949,298 |
Questions about Robert W. Duggan
What boards is Robert W. Duggan on?
Robert W. Duggan sits on the boards of Pulse Biosciences Inc and Summit Therapeutics Inc.
What company is Robert W. Duggan the CEO of?
Robert W. Duggan is Chief Executive Officer of Summit Therapeutics Inc.
How long has Robert W. Duggan served on boards?
Our records show at least 7 years of board service across 2 boards, the earliest from 2023.
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