The tech entrepreneur and investor also stated that he will use future gains on his Reddit stock "to serve the black community, chiefly to curb racial hate," starting with a $1 million donation to Colin Kaepernick's Know Your Rights Camp initiative.
"It is long overdue to do the right thing. I'm doing this for me, for my family, and for my country," he wrote. "I’m saying this as a father who needs to be able to answer his black daughter when she asks: 'What did you do?'"
Ohanian, 37, also urged everyone "fighting to fix our broken nation" to continue, and added, "I believe resignation can actually be an act of leadership from people in power."
The tech mogul married Williams, 38, in 2017. Their daughter, Alexis Olympia Ohanian Jr., is 2 years old.