Block, the financial technology company co-founded by Jack Dorsey, is laying off more than 4,000 employees, a move that will reduce its workforce by nearly half. The announcement was made by CEO Dorsey in a public post on the social media platform X on Thursday.

Dorsey stated the decision was driven by a recognition that "something has changed" in the operational landscape for businesses. He framed the choice as one between gradual cuts over an extended period or immediate, decisive action, opting for the latter. "I had two options: cut gradually over months or years as this shift plays out, or be honest about where we are and act on it now. I chose the latter," Dorsey wrote.

A New Way of Working

In his explanation, Dorsey linked the restructuring to the rapid adoption of artificial intelligence tools. He argued that these technologies, combined with "smaller and flatter teams," are enabling a fundamentally new model for building and running a company. "We're already seeing that the intelligence tools we're creating and using... are enabling a new way of working," he said, noting this transformation is "accelerating rapidly."

Despite the layoffs, Dorsey emphasised that Block's underlying business performance remains strong. The company, known for its Square and Cash App platforms, has been a significant player in the fintech sector.

Market Reaction and Broader Context

The financial markets responded positively to the news of the deep cost-cutting measures. Following the announcement, shares of Block (NYSE: SQ) rose sharply by 23% in after-hours trading, indicating investor approval of the strategy to streamline operations.

This move by Block follows a wider trend of significant job cuts within the technology sector over the past year, as companies adjust to post-pandemic realities, economic pressures, and the integration of new AI capabilities. Dorsey, who also co-founded Twitter (now X), has previously advocated for leaner corporate structures.

The scale of the layoffs—affecting thousands of employees—marks one of the most substantial single workforce reductions in the fintech industry recently. The company has not yet provided detailed information on which divisions or regions will be most affected by the cuts.