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MagnaChip CEO Chae Lee buys 70,000 shares

MagnaChip Semiconductor Corp. (MX) Chief Executive Officer Chae Lee reported three direct purchases of common stock on November 6, 2026: 30,000 shares at $2.2320 per share, 20,000 at $2.1500, and 20,000 at $2.2700, for 70,000 shares in total.

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Form Type
4

Rhea-AI Filing Summary

MagnaChip Semiconductor Corp. (MX) Chief Executive Officer Chae Lee reported three direct purchases of common stock on November 6, 2026: 30,000 shares at $2.2320 per share, 20,000 at $2.1500, and 20,000 at $2.2700, for 70,000 shares in total. No Rule 10b5-1 plan is reported.

Insider LEE CHAE
Role Chief Executive Officer
Bought 70,000 shs ($155K)
Type Security Shares Price Value
Purchase Common Stock 30,000 $2.232 $67K
Purchase Common Stock 20,000 $2.15 $43K
Purchase Common Stock 20,000 $2.27 $45K
Holdings After Transaction: Common Stock — 458,750 shares (Direct)
Shares purchased 30,000 shares Direct purchase on November 6, 2026 at $2.2320 per share
Purchase price $2.2320 per share 30,000 shares purchased on November 6, 2026
Shares purchased 20,000 shares Direct purchase on November 6, 2026 at $2.1500 per share
Purchase price $2.1500 per share 20,000 shares purchased on November 6, 2026
Shares purchased 20,000 shares Direct purchase on November 6, 2026 at $2.2700 per share
Purchase price $2.2700 per share 20,000 shares purchased on November 6, 2026
Total shares purchased 70,000 shares Across three direct purchase entries on November 6, 2026

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How many shares did MX CEO Chae Lee buy?

Chae Lee reported purchasing 70,000 shares of MX common stock directly on November 6, 2026, in three entries: 30,000 shares at $2.2320 per share, 20,000 at $2.1500, and 20,000 at $2.2700. No Rule 10b5-1 plan is reported.

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SEC Form 4
FORM 4UNITED 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*
LEE CHAE

(Last)(First)(Middle)
C/O MAGNACHIP SEMICONDUCTOR, LTD.
108, YEOUI-DAERO, YEONGDEUNGPO-GU

(Street)
SEOUL07335

(City)(State)(Zip)

KOREA, REPUBLIC OF

(Country)
2. Issuer Name and Ticker or Trading Symbol
MAGNACHIP SEMICONDUCTOR Corp [ MX ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chief Executive Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
11/06/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common Stock11/06/2026P30,000A$2.232418,750D
Common Stock11/06/2026P20,000A$2.15438,750D
Common Stock11/06/2026P20,000A$2.27458,750D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
/s/ Shinyoung Park, Attorney-in-Fact11/10/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

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