KLA Corporation implemented a ten-for-one forward stock split effective June 11, 2026, at 11:59 p.m. ET. The company amended its Restated Certificate of Incorporation to increase authorized common stock from 500 million to 5 billion shares. Each share of common stock held prior to the split was reclassified into ten shares. The action is a corporate structural change and does not impact the underlying business operations or financial performance.