Fans were left stunned on December 17, 2025, as IST Entertainment officially announced the disbandment of ATBO, bringing the group’s activities to an abrupt end. In a lengthy statement, the agency expressed gratitude to fans and revealed that, after extensive discussions with all members, including Jung Seung Hwan, who is currently serving in the military, they had mutually decided to terminate management contracts.
IST explained that the decision came after carefully considering each member’s present circumstances, future aspirations, and long-term growth, ultimately concluding that respecting their individual paths was the best choice.
Fans are now mourning the sudden end of the group while expressing heartfelt support for the members as they move forward on their own paths.
