Seunghoon Lee

CIK: 0002023210

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)4 (33.3%)

Compensation grants

Other (G, F, J, C, D, …)8 (66.7%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

MAGNACHIP SEMICONDUCTOR Corp

Officer

Discretionary Trading P&L

Holdings

Transaction History (12 total)

MX
MAGNACHIP SEMICONDUCTOR Corp
Jun 1, 2026
Award(A)
Direct
30K shares-
MX
MAGNACHIP SEMICONDUCTOR Corp
Dec 31, 2025
Tax Payment(F)
Direct
3.3K shares at avg. $2.55$8K
MX
MAGNACHIP SEMICONDUCTOR Corp
Dec 31, 2025
Award(A)
Direct
7K shares at avg. $2.55$18K
MX
MAGNACHIP SEMICONDUCTOR Corp
Dec 31, 2025
Tax Payment(F)
Direct
4.8K shares at avg. $2.55$12K
MX
MAGNACHIP SEMICONDUCTOR Corp
Dec 31, 2025
Tax Payment(F)
Direct
4.9K shares at avg. $2.55$12K
MX
MAGNACHIP SEMICONDUCTOR Corp
Dec 31, 2025
Tax Payment(F)
Direct
2.8K shares at avg. $2.55$7K
MX
MAGNACHIP SEMICONDUCTOR Corp
Aug 15, 2025
Award(A)
Direct
30.8K shares-
MX
MAGNACHIP SEMICONDUCTOR Corp
Mar 1, 2025
Award(A)
Direct
7K shares at avg. $4.54$32K
MX
MAGNACHIP SEMICONDUCTOR Corp
Mar 1, 2025
Tax Payment(F)
Direct
3.2K shares at avg. $4.54$14K
MX
MAGNACHIP SEMICONDUCTOR Corp
Dec 31, 2024
Tax Payment(F)
Direct
1.6K shares at avg. $4.02$7K
MX
MAGNACHIP SEMICONDUCTOR Corp
Dec 31, 2024
Tax Payment(F)
Direct
2.9K shares at avg. $4.02$12K
MX
MAGNACHIP SEMICONDUCTOR Corp
Dec 31, 2024
Tax Payment(F)
Direct
4.9K shares at avg. $4.02$20K

		Type	Shares	Price		Ownership
Jun 1, 2026	MX MAGNACHIP SEMICONDUCTOR Corp	Award(A)	30,000	-	$0	Direct
Dec 31, 2025	MX MAGNACHIP SEMICONDUCTOR Corp	Tax Payment(F)	3,333	$2.55	$8,499	Direct
Dec 31, 2025	MX MAGNACHIP SEMICONDUCTOR Corp	Award(A)	7,000	$2.55	$17,850	Direct
Dec 31, 2025	MX MAGNACHIP SEMICONDUCTOR Corp	Tax Payment(F)	4,761	$2.55	$12,141	Direct
Dec 31, 2025	MX MAGNACHIP SEMICONDUCTOR Corp	Tax Payment(F)	4,880	$2.55	$12,444	Direct
Dec 31, 2025	MX MAGNACHIP SEMICONDUCTOR Corp	Tax Payment(F)	2,778	$2.55	$7,084	Direct
Aug 15, 2025	MX MAGNACHIP SEMICONDUCTOR Corp	Award(A)	30,750	-	$0	Direct
Mar 1, 2025	MX MAGNACHIP SEMICONDUCTOR Corp	Award(A)	7,000	$4.54	$31,780	Direct
Mar 1, 2025	MX MAGNACHIP SEMICONDUCTOR Corp	Tax Payment(F)	3,176	$4.54	$14,419	Direct
Dec 31, 2024	MX MAGNACHIP SEMICONDUCTOR Corp	Tax Payment(F)	1,645	$4.02	$6,613	Direct
Dec 31, 2024	MX MAGNACHIP SEMICONDUCTOR Corp	Tax Payment(F)	2,877	$4.02	$11,566	Direct
Dec 31, 2024	MX MAGNACHIP SEMICONDUCTOR Corp	Tax Payment(F)	4,932	$4.02	$19,827	Direct

1-12 of 12 transactions

About Lee Seunghoon

Lee Seunghoon (SEC CIK 0002023210) files insider reports with the SEC as Chief of Manufacturing of MAGNACHIP SEMICONDUCTOR Corp (MX).

Signal8 holds 4 ownership filings by Lee Seunghoon, all Form 4s, filed between Jan 3, 2025 and Jun 3, 2026. Those filings report 12 transactions, from Dec 31, 2024 to Jun 1, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Lee Seunghoon's filings is in SEOUL.

Recent filings by Lee Seunghoon

Jun 1, 2026: Grant or award of MX shares (Form 4, code A).
Dec 31, 2025: Tax withholding of MX shares (Form 4, code F).
Dec 31, 2025: Grant or award of MX shares (Form 4, code A).
Dec 31, 2025: Tax withholdings of MX shares (3 lines, Form 4, code F).
Aug 15, 2025: Grant or award of MX shares (Form 4, code A).

Other insiders filing for MAGNACHIP SEMICONDUCTOR Corp (MX)

LEE CHAE, Chief Executive Officer
MARTINO CAMILLO, Director
Chung Kyo-Hwa Liz, Director
NATHAN GILBERT E, Director
Amoruso Cristiano, Director
Park Shinyoung, Chief Financial Officer

How to read Form 4 transaction codes