Flex Ltd.
US ˙ NasdaqGS ˙ SG9999000020

Introduction

This page provides a comprehensive analysis of the known insider trading history of Willy C Shih. 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 Willy C Shih has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:NXT / Nextracker Inc. Director 49,956
US:FLEX / Flex Ltd. Director 10,475
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Willy C Shih. 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 FLEX / Flex Ltd. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in FLEX / Flex Ltd.. 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 (%)
There are no known unplanned open-market trades for this insider and security combination

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

FLEX / Flex Ltd. Insider Trades
Insider Sales FLEX / Flex Ltd. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in FLEX / Flex Ltd.. 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 (%)
2018-02-01 FLEX SHIH WILLY C 13,597 17.9137 13,597 17.9137 243,573 270 6.9400 -149,209 -61.26
2017-08-03 FLEX SHIH WILLY C 25,000 16.0348 25,000 16.0348 400,870

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

FLEX / Flex Ltd. Insider Trades
Insider Purchases NXT / Nextracker Inc. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in FLEX / Flex Ltd.. 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 (%)
There are no known unplanned open-market trades for this insider and security combination

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

NXT / Nextracker Inc. Insider Trades
Insider Sales NXT / Nextracker Inc. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in FLEX / Flex Ltd.. 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 (%)
There are no known unplanned open-market trades for this insider and security combination

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

NXT / Nextracker Inc. Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Willy C Shih 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
2025-08-20 2025-08-19 4 NXT Nextracker Inc.
Common Stock
A - Award 3,692 49,956 7.98
2024-08-20 2024-08-20 4 NXT Nextracker Inc.
Common Stock
A - Award 3,723 46,264 8.75
2024-01-04 2024-01-02 4 NXT Nextracker Inc.
Common Stock
A - Award 32,131 42,541 308.66
2023-09-25 2023-09-21 4 NXT Nextracker Inc.
Common Stock
A - Award 3,551 10,410 51.77
2023-09-21 2023-09-19 4 NXT Nextracker Inc.
Common Stock
M - Exercise 3,571 6,859 108.61
2023-04-12 2023-04-10 4 NXT Nextracker Inc.
Common Stock
M - Exercise 3,288 3,288
2021-08-06 2021-08-04 4 FLEX FLEX LTD.
Ordinary Shares
A - Award 10,475 10,475
2020-08-07 2020-08-07 4 FLEX FLEX LTD.
Ordinary Shares
A - Award 15,866 15,866
2019-08-21 2019-08-20 4 FLEX FLEX LTD.
Ordinary Shares
A - Award 18,611 212,281 9.61
2018-08-17 2018-08-16 4 FLEX FLEX LTD.
Ordinary Shares
A - Award 13,868 193,670 7.71
2018-02-02 2018-02-01 4 FLEX FLEX LTD.
Ordinary Shares
S - Sale -13,597 179,802 -7.03 17.91 -243,573 3,220,919
2017-08-17 2017-08-16 4 FLEX FLEX LTD.
Ordinary Shares
A - Award 11,504 193,399 6.32
2017-08-04 2017-08-03 4 FLEX FLEX LTD.
Employee Stock Option (Right to Buy)
M - Exercise -25,000 0 -100.00
2017-08-04 2017-08-03 4 FLEX FLEX LTD.
Ordinary Shares
S - Sale -25,000 181,895 -12.08 16.03 -400,870 2,916,650
2017-08-04 2017-08-03 4 FLEX FLEX LTD.
Ordinary Shares
M - Exercise 25,000 206,895 13.74 11.00 275,000 2,275,845
2016-08-26 2016-08-24 4 FLEX FLEXTRONICS INTERNATIONAL LTD.
Ordinary Shares
A - Award 13,597 181,895 8.08
2015-08-21 2015-08-20 4 FLEX FLEXTRONICS INTERNATIONAL LTD.
Ordinary Shares
A - Award 16,309 168,298 10.73
2014-09-02 2014-08-28 4 FLEX FLEXTRONICS INTERNATIONAL LTD.
Ordinary Shares
A - Award 13,673 151,989 9.89
2013-09-03 2013-09-03 4 FLEX FLEXTRONICS INTERNATIONAL LTD.
Ordinary Shares (Right to Buy)
M - Exercise -12,500 0 -100.00
2013-09-03 2013-09-03 4 FLEX FLEXTRONICS INTERNATIONAL LTD.
Ordinary Shares
M - Exercise 12,500 138,316 9.94 7.08 88,500 979,277
2013-07-30 2013-07-29 4 FLEX FLEXTRONICS INTERNATIONAL LTD.
Ordinary Shares
A - Award 17,647 125,816 16.31
2012-09-04 2012-08-30 4 FLEX FLEXTRONICS INTERNATIONAL LTD.
Ordinary Shares
A - Award 22,727 108,169 26.60
2011-07-25 2011-07-22 4 FLEX FLEXTRONICS INTERNATIONAL LTD.
Ordinary Shares
A - Award 21,398 85,442 33.41
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)