Magnachip Semiconductor Corporation
US ˙ NYSE ˙ US55933J2033

Introduction

This page provides a comprehensive analysis of the known insider trading history of Woung Moo Lee. 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 Woung Moo Lee has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:MX / Magnachip Semiconductor Corporation See Remarks 151,903
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Woung Moo Lee. 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 MX / Magnachip Semiconductor Corporation - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in MX / Magnachip Semiconductor Corporation. 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 (%)
2018-02-14 MX Lee Woung Moo 1,000 9.1000 1,000 9.1000 9,100 176 12.3500 3,250 35.71

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

MX / Magnachip Semiconductor Corporation Insider Trades
Insider Sales MX / Magnachip Semiconductor Corporation - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in MX / Magnachip Semiconductor Corporation. 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 (%)
2022-02-25 MX Lee Woung Moo 7,000 18.1902 7,000 18.1902 127,331 297 8.6300 -66,921 -52.56
2022-02-25 MX Lee Woung Moo 6,000 18.3000 6,000 18.3000 109,800
2022-02-22 MX Lee Woung Moo 6,000 18.5848 6,000 18.5848 111,509
2022-02-22 MX Lee Woung Moo 1,000 18.5800 1,000 18.5800 18,580

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

MX / Magnachip Semiconductor Corporation Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Woung Moo Lee 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
2024-06-13 2024-06-01 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
A - Award 30,000 151,903 24.61
2024-01-03 2023-12-31 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -4,697 121,903 -3.71 7.50 -35,228 914,272
2024-01-03 2023-12-31 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -1,887 126,600 -1.47 7.50 -14,152 949,500
2024-01-03 2023-12-31 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -1,887 126,600 -1.47 7.50 -14,152 949,500
2023-03-27 2023-03-23 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
A - Award 29,250 130,374 28.92
2023-01-04 2022-12-31 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -1,885 101,124 -1.83 9.39 -17,700 949,554
2023-01-04 2022-12-31 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -1,885 101,124 -1.83 9.39 -17,700 949,554
2023-01-04 2022-12-31 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -2,808 104,894 -2.61 9.39 -26,367 984,955
2022-03-02 2022-02-28 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
A - Award 11,747 107,702 12.24
2022-02-28 2022-02-25 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
S - Sale -6,000 95,955 -5.88 18.30 -109,800 1,755,976
2022-02-28 2022-02-25 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
S - Sale -7,000 101,955 -6.42 18.19 -127,331 1,854,582
2022-02-23 2022-02-22 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
S - Sale -1,000 108,955 -0.91 18.58 -18,580 2,024,384
2022-02-23 2022-02-22 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
S - Sale -6,000 109,955 -5.17 18.58 -111,509 2,043,492
2022-02-23 2022-02-18 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -2,759 115,955 -2.32 18.78 -51,814 2,177,635
2022-02-23 2022-02-18 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
A - Award 5,640 118,714 4.99
2022-02-23 2022-02-18 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -3,524 113,074 -3.02 18.78 -66,181 2,123,530
2022-02-23 2022-02-18 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
A - Award 7,204 116,598 6.59
2022-01-04 2021-12-31 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -1,915 109,394 -1.72 20.97 -40,158 2,293,992
2022-01-04 2021-12-31 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -2,853 111,309 -2.50 20.97 -59,827 2,334,150
2022-01-04 2021-12-31 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -3,832 114,162 -3.25 20.97 -80,357 2,393,977
2021-02-24 2021-02-19 4/A MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
A - Award 11,747 117,994 11.06
2021-02-23 2021-02-19 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
A - Award 10,069 116,316 9.48
2021-02-18 2021-02-16 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -5,534 106,247 -4.95 19.86 -109,905 2,110,065
2021-02-18 2021-02-16 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
A - Award 12,373 111,781 12.45
2021-01-05 2020-12-31 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -2,600 99,408 -2.55 13.52 -35,152 1,343,996
2021-01-05 2020-12-31 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -3,491 102,008 -3.31 13.52 -47,198 1,379,148
2021-01-05 2020-12-31 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -4,680 105,499 -4.25 13.52 -63,274 1,426,346
2020-05-08 2020-05-07 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
A - Award 17,500 110,179 18.88
2020-03-02 2020-02-27 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -7,780 92,679 -7.74 11.41 -88,770 1,057,467
2020-03-02 2020-02-27 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
A - Award 17,454 100,459 21.03
2020-01-03 2019-12-31 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -3,435 83,005 -3.97 11.61 -39,880 963,688
2020-01-03 2019-12-31 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -4,787 86,440 -5.25 11.61 -55,577 1,003,568
2019-10-24 2019-10-22 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
A - Award 23,500 91,227 34.70
2019-03-12 2019-03-11 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -1,860 67,727 -2.67 7.52 -13,987 509,307
2019-03-12 2019-03-08 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -1,950 69,587 -2.73 7.51 -14,644 522,598
2019-03-12 2019-03-08 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
A - Award 4,718 71,537 7.06
2019-01-03 2018-12-31 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -1,187 66,819 -1.75 6.21 -7,371 414,946
2018-11-02 2018-10-31 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
F - Taxes -4,444 68,006 -6.13 8.08 -35,908 549,488
2018-10-23 2018-10-22 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
A - Award 35,000 72,450 93.46
2018-02-15 2018-02-14 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
P - Purchase 1,000 37,450 2.74 9.10 9,100 340,795
2016-03-16 2016-03-11 4 MX MAGNACHIP SEMICONDUCTOR Corp
Stock Option (Right to Buy)
A - Award 25,870 25,870
2016-03-16 2016-03-11 4 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
A - Award 13,500 36,450 58.82
2015-11-12 3 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
45,900
2015-11-12 3 MX MAGNACHIP SEMICONDUCTOR Corp
Common Stock
45,900
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)