Ultra Clean Stock Falls Premarket on Insider Sale as AI Rally Faces Scrutiny
Ultra Clean Holdings shares traded at $76.98 in premarket Wednesday, down 0.9%, after an SEC filing showed CIO Jeffrey L. McKibben sold 4,205 shares at $87 each on May 14. The company faces investor meetings next week amid management transition, with CFO Sheri Savage set to retire. First-quarter revenue reached $533.7 million, with second-quarter guidance up to $605 million. Other semiconductor suppliers also traded lower before the open.