Just so everyone is clear here, $1 salary + travel/security rounds out to $27,000,001 for 2021.
Additionally, travel/security don't seem to have any hard spending limit and alleviates Zuck's personal tax liability. (by $27M anyway)
Per the filing you linked:
" Mr. Zuckerberg uses private aircraft for personal travel in connection with his overall security program (including, beginning in 2022, a private aircraft that is indirectly and wholly owned by Mr. Zuckerberg and operated by an independent charter company). On certain occasions, Mr. Zuckerberg may be accompanied by guests when using private aircraft. "
"the costs of Mr. Zuckerberg's security program vary from year to year depending on requisite security measures, his travel schedule, and other factors."
Additionally, travel/security don't seem to have any hard spending limit and alleviates Zuck's personal tax liability. (by $27M anyway)
Per the filing you linked:
" Mr. Zuckerberg uses private aircraft for personal travel in connection with his overall security program (including, beginning in 2022, a private aircraft that is indirectly and wholly owned by Mr. Zuckerberg and operated by an independent charter company). On certain occasions, Mr. Zuckerberg may be accompanied by guests when using private aircraft. "
"the costs of Mr. Zuckerberg's security program vary from year to year depending on requisite security measures, his travel schedule, and other factors."
(Emphasis mine)