NASDAQ:UCTT

Ultra Clean Holdings Stock Insider Trading

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*Your capital is at risk
$92.55
+2.34 (+2.59%)
At Close: Jun 03, 2026

Ultra Clean Holdings Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -60.40. In total, the insiders bought 488K and sold 264.37K UCTT shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power

(Last 100 transactions)
-60.40
Buy 488K shares
Sell 264.37K shares
37% Buy Activity
Negligible or No Correlation
Buy Signal Low Confidence
May 22, 2026

Analysis Breakdown:

  • Signal is highly questionable due to a strongly contradictory negative Insider Power Score of -60.4.
  • Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date Type Person Role Amount
May 27, 2026
Sell
Common Stock
S-Sale
Liggett Emily M
Director
Director 8 198
Value: $755.7K
May 22, 2026
Buy
Common Stock
A-Award
Edman Thomas T
Director
Director 2 575
Value: $216.3K
May 22, 2026
Buy
Common Stock
A-Award
Harding Brian E
Chief Accounting Officer
Officer 8 412
Value: $706.7K
May 22, 2026
Buy
Common Stock
A-Award
Granger Clarence L
Director
Director 2 575
Value: $216.3K
May 22, 2026
Buy
Common Stock
A-Award
Ibnale David T
Director
Director 2 575
Value: $216.3K
May 22, 2026
Buy
Common Stock
A-Award
Cook Christopher S
President, Products Division
CEO / President 13 196
Value: $1.11M
May 22, 2026
Buy
Common Stock
A-Award
Cho Paul Yoonku
General Counsel And Secretary
Officer 8 041
Value: $675.5K
May 22, 2026
Buy
Common Stock
A-Award
Xiao Jinsong
Chief Executive Officer
CEO / President 31 175
Value: $2.62M
May 22, 2026
Buy
Common Stock
A-Award
Solomon Joanne
Director
Director 2 575
Value: $216.3K
May 22, 2026
Buy
Common Stock
A-Award
Mckibben Jeffrey L.
Chief Information Officer
Officer 5 896
Value: $495.3K
May 22, 2026
Buy
Common Stock
A-Award
Seto Jacqueline A.
Director
Director 2 575
Value: $216.3K
May 22, 2026
Buy
Common Stock
A-Award
Palfrey Jamie J.
SVP, Global Human Resources
Officer 9 897
Value: $831.4K
May 22, 2026
Buy
Common Stock
A-Award
Maddock Ernest E
Director
Director 2 575
Value: $216.3K
May 22, 2026
Buy
Common Stock
A-Award
Wunar Robert Anthony
Chief Operating Officer
C-Suite Officer 10 732
Value: $901.6K
May 22, 2026
Buy
Common Stock
A-Award
Liggett Emily M
Director
Director 2 575
Value: $216.3K
May 22, 2026
Buy
Common Stock
A-Award
Johnson Samuel Williams
SVP, Services Business
Officer 5 567
Value: $467.7K
May 22, 2026
Buy
Common Stock
A-Award
Savage Sheri
CFO
C-Suite Officer 26 392
Value: $2.22M
May 14, 2026
Sell
Common Stock
S-Sale
Mckibben Jeffrey L.
Chief Information Officer
Officer 4 205
Value: $365.8K
May 08, 2026
Sell
Common Stock
S-Sale
Cho Paul Yoonku
General Counsel And Secretary
Officer 2 000
Value: $173.8K
May 08, 2026
Sell
Common Stock
S-Sale
Mckibben Jeffrey L.
Chief Information Officer
Officer 2 500
Value: $216.2K
May 05, 2026
Sell
Common Stock
S-Sale
Palfrey Jamie J.
SVP, Global Human Resources
Officer 8 691
Value: $692.9K
May 05, 2026
Sell
Common Stock
S-Sale
Harding Brian E
Chief Accounting Officer
Officer 4 000
Value: $320.0K
May 04, 2026
Sell
Common Stock
S-Sale
Cook Christopher S
President, Products Division
CEO / President 10 247
Value: $757.2K
May 04, 2026
Sell
Common Stock
S-Sale
Cook Christopher S
President, Products Division
CEO / President 1 231
Value: $91.8K
May 01, 2026
Sell
Common Stock
S-Sale
Granger Clarence L
Director
Director 2 475
Value: $191.4K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

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ABOUT ULTRA CLEAN HOLDINGS
Ultra Clean Holdings
Ultra Clean Holdings, Inc. develops and supplies critical subsystems, components and parts, and ultra-high purity cleaning and analytical services for the semiconductor industry in the United States and internationally. The company provides ultra-clean valves, high purity connectors, industrial process connectors and valves, pneumatic actuators, manifolds and safety solutions, hoses, pressure gauges, and gas line and component heaters; chemical d...
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