[Form 4] MAGNACHIP SEMICONDUCTOR Corp Insider Trading Activity

Rhea-AI Filing Summary

MAGNACHIP SEMICONDUCTOR Corp director Nathan Gilbert E reported open-market purchases of Common Stock through an affiliated entity. GT Investments II Corp bought 25,000 shares on 2026-03-12 at $2.7470 per share and 13,006 shares on 2026-03-13 at $2.7871 per share.

After these transactions, GT Investments II Corp held 136,206 shares. The filing also shows 214,491 shares held directly, and additional indirect holdings of 1,905 shares by spouse and 1,690, 1,675 and 1,860 shares held by children.

Insider Trade Summary

Net Buyer: 38,006 shares ($104,924)

Net Buy 7 txns

Insider NATHAN GILBERT E

Role Director

Bought 38,006 shs ($105K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	13,006	$2.7871	$36K
Purchase	Common Stock	25,000	$2.747	$69K
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 136,206 shares (Indirect, By GT Investments II Corp); Common Stock — 214,491 shares (Direct)

Footnotes (1)

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

NATHAN GILBERT E

(Last) (First) (Middle)

C/O MAGNACHIP SEMICONDUCTOR, LTD.

108, YEOUI-DAERO, YEONGDEUNGPO-GU

(Street)

SEOUL M5 07335

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MAGNACHIP SEMICONDUCTOR Corp [ MX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
03/12/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/12/2026		P		25,000	A	$2.747	123,200	I	By GT Investments II Corp
Common Stock	03/13/2026		P		13,006	A	$2.7871	136,206	I	By GT Investments II Corp
Common Stock								214,491	D
Common Stock								1,905	I	By Spouse
Common Stock								1,690	I	By Child
Common Stock								1,675	I	By Child
Common Stock								1,860	I	By Child

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Shinyoung Park, Attorney-in-Fact	03/16/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did MAGNACHIP SEMICONDUCTOR Corp (MX) report in this Form 4?

The Form 4 shows open-market purchases of Common Stock by GT Investments II Corp, an entity associated with director Nathan Gilbert E, totaling 25,000 shares on March 12, 2026 and 13,006 shares on March 13, 2026 at prices around $2.75–$2.79.

Who executed the MAGNACHIP SEMICONDUCTOR Corp (MX) share purchases disclosed here?

The purchases were executed by GT Investments II Corp, an entity through which director Nathan Gilbert E holds shares indirectly. The filing attributes 25,000 and 13,006 Common Stock shares to this entity as open-market transactions coded “P” for purchase.

At what prices were the MAGNACHIP SEMICONDUCTOR Corp (MX) shares bought in this filing?

GT Investments II Corp bought 25,000 MAGNACHIP SEMICONDUCTOR Corp Common Stock shares at $2.7470 per share on March 12, 2026 and 13,006 shares at $2.7871 per share on March 13, 2026, both reported as open-market purchases.

How many MAGNACHIP SEMICONDUCTOR Corp (MX) shares did GT Investments II Corp hold after the reported trades?

After the March 13, 2026 transaction, GT Investments II Corp held 136,206 MAGNACHIP SEMICONDUCTOR Corp Common Stock shares. This figure reflects the total indirect position through that entity following the two reported open-market purchases coded as transaction type “P”.

What additional MAGNACHIP SEMICONDUCTOR Corp (MX) holdings are shown for director Nathan Gilbert E?

The filing lists 214,491 Common Stock shares held directly, plus indirect holdings of 1,905 shares by spouse and 1,690, 1,675 and 1,860 shares held by children. These entries are marked as holding records without new buy or sell codes in this Form 4.

Does this MAGNACHIP SEMICONDUCTOR Corp (MX) Form 4 include any insider sales?

No insider sales are reported. The transaction summary shows two open-market purchases totaling 38,006 shares and zero sales. Other line items are holding entries with no buy or sell codes, indicating position totals rather than new sale transactions.