Mahkam Zanganeh
Co-CEO & President 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.
Summit Therapeutics Inc.
Director · Co-Chief Executive Officer
Pulse Biosciences Inc
Director
Chief executive roles
Summit Therapeutics Inc.
· Co-CEO & President
Dates unknown
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 |
| 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 |
| Oct 21, 2025 | Summit Therapeutics Inc. | Grant or award | +13,980,789 | $18.74 | $261,999,986 |
| Sep 11, 2025 | Summit Therapeutics Inc. | Open-market purchase | +5,000 | $18.07 | $90,350 |
| 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 |
| Feb 3, 2025 | Pulse Biosciences Inc | In-the-money exercise | +30,121 | $11.00 | $331,331 |
| Jan 24, 2025 | Pulse Biosciences Inc | In-the-money exercise | +30,121 | $11.00 | $331,331 |
| Oct 3, 2024 | Summit Therapeutics Inc. | In-the-money exercise | +315,681 | $1.58 | $498,776 |
| Sep 11, 2024 | Summit Therapeutics Inc. | Grant or award | +44,052 | $22.70 | $999,980 |
| Jul 3, 2024 | Pulse Biosciences Inc | In-the-money exercise | +60,242 | — | — |
| Mar 27, 2024 | Summit Therapeutics Inc. | Open-market purchase | +26,000 | $3.72 | $96,720 |
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