They were all charged with either conspiring to cause public nuisance or inciting others to do so.
Nine activists targeted by police were defiant as they turned themselves in at police headquarters in the evening, accompanied by dozens of supporters.
Tens of thousands of student protesters took to the streets in 2014 in what became known as the Umbrella Movement to demand full democracy for Hong Kong.
Those who have worked with her say she is intelligent, hard-working and able to push controversial government policies, earning her the trust of Beijing factions who strongly lobbied for votes on her behalf. She must now try to assure Hong Kongers that she wants to introduce more democracy in the wake of fierce protests against Beijing's influence, while reassuring China's leaders who want no such thing.
Carrie Lam waves after she won the election for Hong Kong's Chief Executive in Hong Kong, China.
Days before the vote, Mr Leung warned that Hong Kong's autonomy would be at risk should the election committee pick a candidate whom the party disliked-a clear hint that its members should vote for Mrs Lam.
Despite active campaigning that saw the city's former finance secretary John Tsang become the favorite in polls of public opinion, and that political observers said was likely meant to have a behind-the-scenes effect on Beijing's heart and mind, he secured just 365 votes. But her vote total - 777 - was immediately seized upon as a nickname to deride the election process. In 2014, she faced off against protesting students in a televised debate, a performance that pleased Beijing but left her unpopular with many Hong Kong residents.
Speaking Sunday after she was selected as the city's next leader, Lam promised to heal divisions and "unite our society".
Tillerson to attend North Atlantic Treaty Organisation meet next week
Citizens of those country are admitted into the USA under a visa waiver programme. That ban is now on hold over legal challenges.
Such prioritising was a "clever" move on Lam's part, said Lau Siu-kai, vice-president of the Chinese Association of Hong Kong and Macau Studies.
He calls on the whole community to fully support the new chief executive and the new SAR government, and work together to realize the potential for a better Hong Kong. "Carrie Lam's victory means a change of luck for Hong Kong", Mr Chan said.
Lam will take office on July 1st, and will face low popularity ratings from the beginning of her term. Former President Jiang Zemin, speaking at the Handover ceremonies when Britain returned Hong Kong to China in 1997, pledged that the territory "shall gradually develop a democratic system that suits Hong Kong's reality".
Despite huge numbers the rallies failed to win concessions and the package was voted down in the legislature by pro-democracy lawmakers in 2015.
"It does somehow protect the 20th anniversary ceremony in the sense that it deters the protesters from conducting any radical or violent campaigns", said political analyst Edmund Cheng of Hong Kong Baptist University.
Candidates Carrie Lam, left and Woo Kwok-hing, center, look on as officials open ballot boxes.
That has outraged Chinese leaders, who have clamped down hard on any hint of separatism in other regions like Tibet. While the 59-year-old veteran politician never gained the support of the Hong Kong people during her campaign, she was widely believed to have the backing of Beijing. "This is what makes young people very afraid of the Chinese model of governance being imported into Hong Kong".
"Without a fair, transparent, genuine democracy, a lot of issues can not be dealt with in Hong Kong", said Alvin Yeung, the leader of the Civic Party and a member of the legislative assembly.