Block to cut 4,000+ jobs for AI-era pivot; shares jump over 20%

Block shares rose more than 20% in premarket trading after CEO Jack Dorsey told employees the company will eliminate over 4,000 roles and reorganize around an AI-era operating model. The company's 8-K outlines a reduction of more than 40% to just under 6,000 employees from 10,205 as of Dec. 31, 2025, with $450 million to $500 million in charges and completion by the end of Q2 FY2026.