salaries, options may increase up to $4M each based on finish in 2015-19 Cy Young votes (top 5 finish in 2018 Cy Young vote increased 2019 salary to $17M, 2020 option to $17.5M, 2021 option to $18M)
assignment bonus: $1M if traded
if traded in 2015-19, new club must exercise or decline both 2020 and 2021 options within 3 days after end of 2019 World Series
if traded in 2020, 2021 option converts to a vesting option guaranteed if Kluber has 160 innings pitched in 2020 and is not on the disabled list at the end of the 2020 season
Kluber gets an additional $1 million since he was traded. Technically, Kluber was traded in 2019 so I’m not sure the fourth bullet point applies. But I didn’t realize his 2020 and 2021 team option salaries increased, as you can see in the first bullet point.