The sentence of Ms. Chan, the current lawmaker, was adjourned until June 10 because she had to undergo a major operation.
The activists said after the verdict that they were honored to serve in the movement and that, despite their convictions, they did not regret their involvement. Some of their lawyers asked for a sentence of community service rather than prison time.
“We need to understand that the powerful collude within the political economy, and to find the right spot and hammer on it relentlessly,” Mr. Chung, the 26-year-old former student leader, said in a court statement before the sentencing that was translated from Chinese by Hong Kong Free Press. “There are no saints to follow on this journey.”
Mr. Chung did not ask for a community service order.
Mr. Tai and Mr. Chan, who were also convicted of incitement to commit public nuisance, said they would not ask for reduced sentences, instead asking the court not to give a jail sentence to Mr. Chu, who is in poor health.
In his own court statement, Mr. Chu, who helped activists escape from China following the deadly 1989 crackdown on demonstrations around Tiananmen Square, described himself as a “bell toller” in the Umbrella Movement.
Three student protest leaders, Joshua Wong, Alex Chow and Nathan Law, were given prison sentences of six to eight months in 2017. Hong Kong’s highest court overturned those sentences last year, but also upheld tougher sentencing for future offenses.