Ultra Clean Holdings, Inc.
US ˙ NasdaqGS ˙ US90385V1070

Introduction

This page provides a comprehensive analysis of the known insider trading history of Brian E Harding. Insiders are officers, directors, or significant investors in a company. It is illegal for insiders to make trades in their companies based on specific, non-public information. 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. Despite these restrictions, academic research suggests that insiders - in general - tend to outperform the market in their own companies.

Average Trade Profitability

The average trade profitability is the average return of all the open market purchases made by the insider in the last three years. To calculate this, we examine every open-market, unplanned purchase made by the insider, excluding all trades that were marked as part of a 10b5-1 trading plan. We then calculate the average performance of those trades over 3, 6, and 12 months, averaging each of those durations to generate a final performance metric for each trade. Finally, we average all of the performance metrics to calculate a performance metric for the insider. This list only includes insiders that have made at least three trades in the last two years.

If this insiders trade profitability is "N/A", then the insider either has not made any open-market purchases in the last three years, or the trades they’ve made are too recent to calculate a reliable performance metric.

Update Frequency: Daily

See the list of most profitable insider traders.

Companies with Reported Insider Positions

The SEC filings indicate Brian E Harding has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:UCTT / Ultra Clean Holdings, Inc. Chief Accounting Officer 48,237
US:US302445AD32 / FLIR Systems Inc VP, Corporate Controller & PAO 8,876
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Brian E Harding. Non-planned trade are trades that were not made as part of a 10b5-1 trading plan. The stock performance is charted as cumulative percent change in share price. For example, if an insider trade was made on January 1, 2019, the chart will show the daily percent change of the security to the present day. If the share price were to go from $10 to $15 during this time, the cumulative percent change in share price would be 50%. A change in price from $10 to $20 would be 100%, and a change in price of $10 to $5 would be -50%.

Ultimately, we are trying to determine how closely the insider’s trades correlate to excess returns (positive or negative) in the share price in order to see if the insider is timing their trades to profit from insider information. Consider the situation where an insider was doing this. In this situation, we would expect either (a) positive returns after purchases, or (b) negative returns after sales. In the case of (a), the PURCHASE chart would show a series of upwardly sloping curves, indicating positive returns after each purchase transaction. In the case of (b), the SALE chart would show a series of downward sloping curves, indicating negative returns after each sale transaction.

However, this alone is not enough to draw conclusions. If, for example, the share price of the company was in a non-cyclical climb over many years, then we would expect all the post-purchase plots to be upwardly sloping. Likewise, non-cyclical declines over many years would result in downward sloping post-trade plots. Neither of these charts would suggest insider trading activity.

The strongest indicator would be a situation where the share price was extremely cyclical, and there were both positive signals in the PURCHASE chart and negative plots on the SALE chart. This situation would be highly suggestive of an insider that was timing trades to their financial advantage.

Insider Purchases UCTT / Ultra Clean Holdings, Inc. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made 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 Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
2025-03-07 UCTT HARDING BRIAN E 4,000 24.0000 4,000 24.0000 96,000 132 25.9800 7,920 8.25

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

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

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made 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 sales that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
2024-05-09 UCTT HARDING BRIAN E 898 43.7098 898 43.7098 39,251 334 17.8400 -23,231 -59.18
2024-05-09 UCTT HARDING BRIAN E 8,102 44.0002 8,102 44.0002 356,490
2024-05-09 UCTT HARDING BRIAN E 2,000 43.5000 2,000 43.5000 87,000

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

UCTT / Ultra Clean Holdings, Inc. Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Brian E Harding as disclosed to the Securities Exchange Commission (SEC).

File Date Tran Date Form Ticker Security Code 10b5-1 Shares Remaining Shares Percent
Change
Share
Price
Tran
Value
Remaining
Value
2025-07-02 2025-06-30 4 UCTT Ultra Clean Holdings, Inc.
Common Stock
F - Taxes -4,198 48,237 -8.01 22.57 -94,749 1,088,709
2025-05-02 2025-04-30 4 UCTT Ultra Clean Holdings, Inc.
Common Stock
F - Taxes -2,640 51,706 -4.86 18.71 -49,394 967,419
2025-05-02 2025-04-30 4 UCTT Ultra Clean Holdings, Inc.
Common Stock
F - Taxes -1,956 54,346 -3.47 18.71 -36,597 1,016,814
2025-04-29 2025-04-25 4 UCTT Ultra Clean Holdings, Inc.
Common Stock
A - Award 18,090 56,302 47.34
2025-03-11 2025-03-07 4 UCTT Ultra Clean Holdings, Inc.
Common Stock
P - Purchase 4,000 38,212 11.69 24.00 96,000 917,088
2024-07-02 2024-06-30 4 UCTT Ultra Clean Holdings, Inc.
Common Stock
F - Taxes -3,796 33,619 -10.15 49.00 -186,004 1,647,331
2024-05-13 2024-05-09 4 UCTT Ultra Clean Holdings, Inc.
Common Stock
S - Sale -2,000 37,415 -5.07 43.50 -87,000 1,627,552
2024-05-13 2024-05-09 4 UCTT Ultra Clean Holdings, Inc.
Common Stock
S - Sale -8,102 39,415 -17.05 44.00 -356,490 1,734,268
2024-05-13 2024-05-09 4 UCTT Ultra Clean Holdings, Inc.
Common Stock
S - Sale -898 47,517 -1.85 43.71 -39,251 2,076,959
2024-05-13 2024-05-03 4 UCTT Ultra Clean Holdings, Inc.
Common Stock
A - Award 898 48,415 1.89 21.94 19,701 1,062,152
2024-05-02 2024-04-30 4 UCTT Ultra Clean Holdings, Inc.
Common Stock
F - Taxes -2,388 47,517 -4.79 41.83 -99,890 1,987,636
2024-04-30 2024-04-26 4 UCTT Ultra Clean Holdings, Inc.
Common Stock
A - Award 11,237 49,905 29.06
2023-07-05 2023-06-30 4 UCTT Ultra Clean Holdings, Inc.
Common Stock
F - Taxes -2,599 38,668 -6.30 38.46 -99,958 1,487,171
2023-05-02 2023-04-28 4 UCTT Ultra Clean Holdings, Inc.
Common Stock
A - Award 15,162 41,267 58.08
2022-06-27 3 UCTT Ultra Clean Holdings, Inc.
Common Stock
2,000
2022-06-27 2022-06-24 4 UCTT Ultra Clean Holdings, Inc.
Common Stock
A - Award 24,105 26,105 1,205.25
2019-09-18 2019-09-17 4 FLIR FLIR SYSTEMS INC
Common Stock
S - Sale -3,625 8,876 -29.00 52.48 -190,240 465,812
2019-05-22 2019-05-20 4 FLIR FLIR SYSTEMS INC
Common Stock
F - Taxes -377 12,501 -2.93 52.99 -19,977 662,428
2019-05-22 2019-05-20 4 FLIR FLIR SYSTEMS INC
Common Stock
F - Taxes -283 12,878 -2.15 52.58 -14,880 677,125
2019-05-22 2019-05-20 4 FLIR FLIR SYSTEMS INC
Common Stock
A - Award 1,969 13,161 17.59
2019-04-30 2019-04-29 4 FLIR FLIR SYSTEMS INC
Common Stock
F - Taxes -1,167 11,192 -9.44 52.58 -61,361 588,475
2019-04-30 2019-04-26 4 FLIR FLIR SYSTEMS INC
Common Stock
A - Award 3,286 12,359 36.22
2018-05-02 2018-04-30 4 FLIR FLIR SYSTEMS INC
Common Stock
F - Taxes -395 9,073 -4.17 53.55 -21,152 485,859
2018-05-01 2018-04-27 4 FLIR FLIR SYSTEMS INC
Common Stock
A - Award 2,822 9,468 42.46
2017-10-31 2017-10-30 4 FLIR FLIR SYSTEMS INC
Common Stock
S - Sale -1,836 6,646 -21.65 46.90 -86,108 311,697
2017-07-31 2017-07-28 4 FLIR FLIR SYSTEMS INC
Common Stock
F - Taxes -146 8,482 -1.69 36.50 -5,329 309,593
2017-05-02 2017-04-29 4 FLIR FLIR SYSTEMS INC
Common Stock
F - Taxes -121 8,439 -1.41 36.98 -4,475 312,074
2017-05-02 2017-04-28 4 FLIR FLIR SYSTEMS INC
Common Stock
F - Taxes -608 8,560 -6.63 36.73 -22,332 314,409
2017-05-02 2017-04-28 4 FLIR FLIR SYSTEMS INC
Common Stock
A - Award 2,532 9,168 38.16
2016-11-03 2016-11-01 4 FLIR FLIR SYSTEMS INC
Common Stock
S - Sale -541 6,447 -7.74 33.00 -17,853 212,751
2016-11-03 2016-07-28 4 FLIR FLIR SYSTEMS INC
Common Stock
F - Taxes -142 6,988 -1.99 32.90 -4,672 229,905
2016-05-09 3 FLIR FLIR SYSTEMS INC
Common Stock
14,260
2016-05-09 3 FLIR FLIR SYSTEMS INC
Common Stock
14,260
P
Open market or private purchase of non-derivative or derivative security
S
Open market or private sale of non-derivative or derivative security
A
Grant, award, or other acquisition of securities from the company (such as an option)
C
Conversion of derivative
D
Sale or transfer of securities back to the company
F
Payment of exercise price or tax liability using portion of securities received from the company
G
Gift of securities by or to the insider
K
Equity swaps and similar hedging transactions
M
Exercise or conversion of derivative security received from the company (such as an option)
V
A transaction voluntarily reported on Form 4
J
Other (accompanied by a footnote describing the transaction)