Magnachip Semiconductor filings document the reporting and governance records of a Delaware company with common stock listed on the New York Stock Exchange under MX. Its 8-K reports furnish quarterly and annual financial information for continuing operations, including Power Analog Solutions and Power IC, and include exhibits describing product launches and operating highlights in power semiconductors.
The filing record also covers proxy and governance matters, including executive compensation, pay-versus-performance disclosures, board and committee changes, director compensation arrangements, and executive service or separation agreements involving the company and its Korean operating subsidiary, Magnachip Semiconductor, Ltd. These disclosures connect capital-structure, leadership and compensation matters to the company’s semiconductor operating business.
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.
Magnachip Semiconductor reported weaker results for Q4 and full-year 2025 as demand and margins softened in its Power Solutions business. Q4 2025 revenue from continuing operations was $40.6 million, down 11.7% sequentially and 20.7% year-over-year, with consolidated gross margin falling to 9.3% from 21.7% a year earlier.
The company posted a Q4 operating loss of $12.4 million and a loss from continuing operations of $8.8 million, or $0.24 per share. For 2025, revenue declined to $178.9 million, while operating loss widened to $35.9 million. Management highlighted 55 new products launched, cost reduction actions, and a strategic IGBT agreement, and guided Q1 2026 revenue to $44–48 million with gross margin of 14–16%.
Magnachip Semiconductor Corp director Nathan Gilbert E reported receiving a grant of 1,478 shares of common stock on February 15, 2026 at a price of $0.00 per share, described as a grant, award, or other acquisition. After this award, he directly holds 214,491 common shares.
The filing also reports indirect beneficial ownership of Magnachip common stock through related parties, including 98,200 shares by GT Investments II Corp, and additional smaller holdings reported as owned by his spouse and children.
Chung Kyo-Hwa Liz reported acquisition or exercise transactions in a Form 4 filing for MX. The filing lists transactions totaling 2,946 shares. Following the reported transactions, holdings were 100,789 shares.
Magnachip Semiconductor director Cristiano Amoruso reported an equity grant. On February 15, 2026, he acquired 28,628 shares of common stock in a grant, at a reported price of $0 per share. After this transaction, he directly holds 28,628 shares and indirectly holds 3,072,779 shares through Byreforge LLC.
Clearline Capital reports a 4.1% passive stake in Magnachip Semiconductor Corporation. As of December 31, 2025, Clearline Capital LP, Clearline Capital LLC and Marc Majzner together report beneficial ownership of 1,461,036 shares of Magnachip common stock.
The filing calculates this 4.1% interest using 35,981,823 common shares reported as issued and outstanding as of October 31, 2025 in Magnachip’s Form 10-Q. All reported shares are held with shared voting and dispositive power, and the filers certify the investment is held in the ordinary course and not for the purpose of changing or influencing control of the company.
Magnachip Semiconductor Corp received an updated Schedule 13G indicating that institutional investor Systematic Financial Management no longer holds a reportable stake in the company. As of 12/31/2025, Systematic reports beneficial ownership of 0 shares of Magnachip common stock, representing 0.0% of the class.
The filing confirms that Systematic’s aggregate holdings in this security are now less than 5%. It also certifies that any securities referenced were acquired and held in the ordinary course of business, without the purpose or effect of changing or influencing control of Magnachip.
MagnaChip Semiconductor director Amoruso Cristiano filed an initial ownership statement reporting 3,072,779 shares of common stock held indirectly through Byreforge LLC.
The filing lists these shares as indirectly beneficially owned, with Byreforge LLC shown as the holder of record. A footnote explains that, due to his relationship with Byreforge LLC, Amoruso Cristiano may be deemed to beneficially own the shares but disclaims beneficial ownership except to the extent of any pecuniary interest.
MagnaChip Semiconductor Corp shareholder Byreforge LLC, together with Cristiano Amoruso, reports beneficial ownership of 3,072,779 shares of common stock, representing 8.5 % of the company’s outstanding common shares. All of these shares are reported with shared voting and dispositive power. On January 14, 2026, MagnaChip’s board of directors appointed Cristiano Amoruso as a director to serve until the 2026 annual meeting or until a successor is elected. He was also appointed to the board’s Audit Committee, Compensation Committee, and Nominating and Corporate Governance Committee, giving this 8.5 % holder direct representation in key oversight roles.
Magnachip Semiconductor Corporation reported that its Board of Directors appointed Cristiano Amoruso as a new director effective January 14, 2026. He will serve on the Board until the 2026 Annual Meeting of Stockholders or until a successor is chosen, and will also sit on the Audit Committee, Compensation Committee, and Nominating and Corporate Governance Committee. The company states that Amoruso will participate in its independent director compensation program under the existing Director Compensation Policy.
The company notes there have been no transactions since the beginning of its last fiscal year in which Amoruso had a direct or indirect material interest above $120,000, and there is no arrangement or understanding with any person regarding his selection as a director. On January 20, 2026, Magnachip issued a press release announcing his election, which is furnished as an exhibit to this report.