Magnachip Semiconductor Corporation (MX) Insider Trading

Last 12 months

Insiders bought $487k on the open market and sold nothing.

Net open-market

+$487k

3 buys · 0 sales

Under a 10b5-1 plan

—

no sales

Insiders who bought / sold

2 / 0

executives and directors

Last open-market buy

Sep 2026

Sep 24, 2026

Get an email when MX's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Sep 23 – 24	Chae Lee Chief Executive Officer	Bought 3 parts	100,000	$3.19 average	$319k	35%	Form 4
Mar 16	Gilbert E Nathan Director	Bought	21,994	$2.87	$63k	6.2%	Form 4
Mar 12 – 13	Gilbert E Nathan Director	Bought 2 parts	38,006	$2.76 average	$105k	12%	Form 4
Aug 25, 2025	Shin Young Park See Remarks	Bought	10,000	$2.87	$29k	4.1%	Form 4
Aug 22, 2025	Camillo Martino See Remarks	Bought	30,000	$2.84	$85k	11%	Form 4
Mar 14, 2025	Ilbok Lee Director	Bought	20,000	$3.86	$77k	10%	Form 4
Mar 13, 2025	Camillo Martino Director	Bought	20,000	$3.66	$73k	10%	Form 4
Mar 13, 2025	Gilbert E Nathan Director	Bought	20,000	$3.68	$74k	8.4%	Form 4

Sep 23 – 24
Chae Lee
Chief Executive Officer · bought 100,000 at avg $3.19
$319k
35% of stake
Mar 16
Gilbert E Nathan
Director · bought 21,994 at $2.87
$63k
6.2% of stake
Mar 12 – 13
Gilbert E Nathan
Director · bought 38,006 at avg $2.76
$105k
12% of stake
Aug 25, 2025
Shin Young Park
See Remarks · bought 10,000 at $2.87
$29k
4.1% of stake
Aug 22, 2025
Camillo Martino
See Remarks · bought 30,000 at $2.84
$85k
11% of stake
Mar 14, 2025
Ilbok Lee
Director · bought 20,000 at $3.86
$77k
10% of stake
Mar 13, 2025
Camillo Martino
Director · bought 20,000 at $3.66
$73k
10% of stake
Mar 13, 2025
Gilbert E Nathan
Director · bought 20,000 at $3.68
$74k
8.4% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch MX, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Spot a number that looks wrong? Check it in MX's SEC filings or

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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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