株式会社ウルトラクリーンホールディングス
US ˙ NasdaqGS ˙ US90385V1070

SecurityUCTT / Ultra Clean Holdings, Inc.
InsiderPaul Yoonku Cho
This page shows the track record and history of Cho Paul Yoonku insider trades in Ultra Clean Holdings, Inc.. The SEC defines Insiders as officers, directors, or significant investors (greater than 10% ownership) in a company. It is illegal for insiders to make trades in their companies based on material, non-public information ("MNPI"). This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4.
Insider Purchases - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made by Paul Yoonku Cho in UCTT / Ultra Clean Holdings, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

UCTT / Ultra Clean Holdings, Inc. Insider Trades
Insider Sales - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by Paul Yoonku Cho in UCTT / Ultra Clean Holdings, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
2026-06-02 944 89.3700 944 89.3700 84,365 3 82.0700 -6,891 -8.17
2026-05-08 2,000 86.8901 2,000 86.8901 173,780
2025-06-06 4,084 21.0606 4,084 21.0606 86,011
2024-05-17 3,449 44.7915 3,449 44.7915 154,486
2023-12-04 4,689 28.3801 4,689 28.3801 133,074
2023-05-26 176 36.1010 176 36.1010 6,354
2022-11-03 2,949 29.4107 2,949 29.4107 86,732
2022-05-11 3,536 30.4094 3,536 30.4094 107,528
2021-11-03 9,247 55.2431 9,247 55.2431 510,833

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

UCTT / Ultra Clean Holdings, Inc. Insider Trades
Insider Transaction History
File
Date
Trade
Date
Form Insider Ticker Security Title Code 10b5-1 Direct Exercise
Price
Unit
Price
Units
Changed
Value
Changed (1K)
Remaining
Options
Remaining
Shares
2026-06-04 2026-06-02 4 Cho Paul Yoonku UCTT Common Stock S - Sale D 89.3700 -944 -84 22,941
2026-05-27 2026-05-22 4 Cho Paul Yoonku UCTT Common Stock A - Award D 8,041 23,885
2026-05-12 2026-05-08 4 Cho Paul Yoonku UCTT Common Stock S - Sale D 86.8901 -2,000 -174 15,844
2026-05-04 2026-04-30 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 78.1500 -2,454 -192 17,844
2026-05-04 2026-04-30 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 78.1500 -1,465 -114 20,298
2026-05-04 2026-04-30 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 78.1500 -1,582 -124 21,763
2025-06-10 2025-06-06 4 Cho Paul Yoonku UCTT Common Stock S - Sale D 21.0606 -4,084 -86 23,345
2025-05-02 2025-04-30 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 18.7100 -995 -19 27,429
2025-05-02 2025-04-30 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 18.7100 -1,462 -27 28,424
2025-05-02 2025-04-30 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 18.7100 -1,579 -30 29,886
2025-04-29 2025-04-25 4 Cho Paul Yoonku UCTT Common Stock A - Award D 14,472 31,465
2025-04-02 2025-03-31 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 21.4100 -173 -4 16,993
2024-05-21 2024-05-17 4 Cho Paul Yoonku UCTT Common Stock S - Sale D 44.7915 -3,449 -154 17,166
2024-05-02 2024-04-30 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 41.8300 -1,576 -66 20,615
2024-05-02 2024-04-30 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 41.8300 -614 -26 22,191
2024-05-02 2024-04-30 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 41.8300 -993 -42 22,805
2024-04-30 2024-04-26 4 Cho Paul Yoonku UCTT Common Stock A - Award D 8,644 23,798
2024-04-02 2024-03-31 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 45.9400 -173 -8 15,154
2024-04-02 2024-03-31 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 45.9400 -183 -8 15,327
2024-04-02 2024-03-31 4 Cho Paul Yoonku UCTT Common Stock A - Award D 363 15,510
2023-12-06 2023-12-04 4 Cho Paul Yoonku UCTT Common Stock S - Sale D 28.3801 -4,689 -133 15,147
2023-05-31 2023-05-26 4 Cho Paul Yoonku UCTT Common Stock S - Sale D 36.1010 -176 -6 19,836
2023-05-02 2023-04-30 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 28.5400 -951 -27 20,012
2023-05-02 2023-04-30 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 28.5400 -235 -7 20,963
2023-05-02 2023-04-30 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 28.5400 -588 -17 21,198
2023-05-02 2023-04-30 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 28.5400 -1,988 -57 21,786
2023-05-02 2023-04-30 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 28.5400 -662 -19 23,774
2023-05-02 2023-04-28 4 Cho Paul Yoonku UCTT Common Stock A - Award D 9,330 24,436
2023-04-04 2023-03-31 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 33.1600 -166 -6 15,106
2022-11-07 2022-11-03 4 Cho Paul Yoonku UCTT Common Stock S - Sale D 29.4107 -2,949 -87 15,272
2022-11-02 2022-10-31 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 31.1100 -2,785 -87 18,221
2022-05-13 2022-05-11 4 Cho Paul Yoonku UCTT Common Stock S - Sale D 30.4094 -3,536 -108 21,006
2022-05-03 2022-04-30 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 31.1700 -599 -19 24,542
2022-05-03 2022-04-30 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 31.1700 -239 -7 25,141
2022-05-03 2022-04-29 4 Cho Paul Yoonku UCTT Common Stock A - Award D 5,879 25,380
2022-04-26 2022-04-24 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 33.5600 -2,112 -71 19,501
2022-04-26 2022-04-24 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 33.5600 -667 -22 21,613
2022-03-29 2022-03-25 4 Cho Paul Yoonku UCTT Common Stock A - Award D 1,026 22,280
2021-11-05 2021-11-03 4 Cho Paul Yoonku UCTT Common Stock S - Sale D 55.2431 -9,247 -511 21,254
2021-10-27 2021-10-25 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 42.9800 -2,982 -128 30,501
2021-05-04 2021-04-30 4 Cho Paul Yoonku UCTT Common Stock A - Award D 969 33,483
2021-05-04 2021-04-30 4 Cho Paul Yoonku UCTT Common Stock A - Award D 3,637 32,514
2021-04-27 2021-04-24 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 54.1100 -2,119 -115 28,877
2021-04-27 2021-04-24 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 54.1100 -646 -35 30,996
2021-02-12 2021-02-10 4 Cho Paul Yoonku UCTT Common Stock A - Award D 4,092 31,642
2020-10-27 2020-10-25 4 Cho Paul Yoonku UCTT Common Stock F - Taxes D 23.5800 -1,929 -45 27,550
2020-04-28 2020-04-24 4 Cho Paul Yoonku UCTT Common Stock A - Award D 12,278 29,479
2019-10-25 2019-10-25 4 Cho Paul Yoonku UCTT Common Stock A - Award D 17,201 17,201
P
非デリバティブまたはデリバティブ証券の公開市場または非公開購入
S
非デリバティブ証券またはデリバティブ証券の公開市場または非公開売却
A
会社からの有価証券の交付、授与その他の取得 (オプション等)
C
デリバティブの転換
D
有価証券の会社への売却または譲渡
F
会社から受領した有価証券の一部を使用した、行使価格または納税義務のお支払い
G
内部者によるまたは内部者に対する有価証券の贈与
K
株式スワップと類似のヘッジ取引
M
会社から受け取ったデリバティブ証券 (オプションなど) の行使または転換
V
フォーム4により任意に報告した取引
J
その他 (取引を説明する脚注を含む)