Trade Summary

6 days ago, HARDING BRIAN E, serving as Chief Accounting Officer at Ultra Clean Holdings, Inc. (UCTT), sold 16,988 shares at $89.47 per share, for a total transaction value of $1,519,891.98. Following this transaction, HARDING BRIAN E now holds 28,055 shares of UCTT.

This sale represents a 37.72% decrease in HARDING BRIAN E's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Thursday, June 4, 2026 and publicly disclosed via SEC Form 4 filing on Monday, June 8, 2026 at 7:59 PM ET, 4 days after the trade was made.

Ultra Clean Holdings, Inc. operates in the TECHNOLOGY sector, specifically within the SEMICONDUCTOR EQUIPMENT & MATERIALS industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.