Summit Therapeutics Inc.

Pharmaceutical Preparations·MIAMI, FL·FY end 12/31·CIK 1599298

Named Executive Officers

FY 2025

Executive	Salary	Stock	Options	Bonus / Inc.	Other	Total
Robert W. DugganCo-Chief Executive Officer and Chairman	—	—	—	—	—	$172.4K
Mahkam ZanganehCo-Chief Executive Officer, President and Director	$616.5K	—	—	$388.4K	$245.0M	$21.0K
Manmeet SoniChief Operating Officer, Chief Financial Officer and Director	$616.5K	—	—	$388.4K	$248.1M	$21.0K

Robert W. Duggan · FY 2025

TSR % vs. CEO comp actually paid · 6 fiscal years · Item 402(v) disclosure

TSR

CEO comp

FY20

+194%

$1M

FY21

-43%

$5M

FY22

-10%

$4M

FY23

-44%

$30M

FY24

+280%

$228M

FY25

+272%

$233M

Need at least two fiscal years of proxy data to draw the trend line. The ingestion worker will populate prior-year proxies as it processes them.