Every Form 4 that Magnachip Semiconductor Corp. (MX) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow MX and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full MX filings page.
MAGNACHIP SEMICONDUCTOR Corp (MX) director Camillo Martino reported an acquisition of 6,764 shares of common stock on August 15, 2026 as a grant or award at a stated price of $0.00 per share. Following this award, he directly holds 410,661 shares and also reports 40,000 shares held indirectly by a trust.
Magnachip Semiconductor director Camillo Martino received a grant of 39,286 shares of Common Stock on August 1, 2026, classified as a grant/award acquisition at a stated price of $0.0000 per share. Following this award, he directly owns 403,897 shares and reports 40,000 shares held indirectly by a trust.
Chung Kyo-Hwa Liz reported acquisition or exercise transactions in this Form 4 filing.
Magnachip Semiconductor Corp director Chung Kyo-Hwa Liz received a grant of 48,810 shares of common stock on August 1, 2026, at a reported price of $0.0000 per share. Following this non-derivative award, she directly holds 149,599 Magnachip common shares.
MAGNACHIP SEMICONDUCTOR Corp director NATHAN GILBERT E received a grant of 51,191 shares of common stock on August 1, 2026 at a reported price of $0.0000 per share, classified as a grant, award, or other acquisition. Following this award, he holds 265,682 shares directly. He also reports indirect ownership, including 158,200 shares held by GT Investments II Corp and 1,905 shares held by his spouse, plus additional shares held for his children.
Amoruso Cristiano reported acquisition or exercise transactions in this Form 4 filing.
MAGNACHIP SEMICONDUCTOR director Cristiano Amoruso received a grant of 46,429 shares of Common Stock on 2026-08-01 at no cash cost, increasing his direct holdings to 75,057 shares. He also reported 3,072,779 shares held indirectly through Byreforge LLC.
MAGNACHIP SEMICONDUCTOR Corp reported that its new Chief Executive Officer and director, Chae Lee, received an initial equity award in connection with his appointment. He was granted 288,750 shares of common stock and a stock option for 148,750 shares at an exercise price of $5.50 per share, expiring on July 1, 2036. According to the award terms under the company’s 2020 Equity Incentive Plan, each grant will vest over four years with a one-year cliff, and continued vesting is conditioned on Mr. Lee’s ongoing service with the company.
Park Shinyoung reported acquisition or exercise transactions in this Form 4 filing.
MAGNACHIP SEMICONDUCTOR Corp Chief Financial Officer Shinyoung Park reported an equity compensation grant of 112,500 shares of common stock on 2026-06-01. The shares were awarded at no purchase price, increasing Park’s direct holdings to 327,954 common shares.
Lee Seunghoon reported acquisition or exercise transactions in this Form 4 filing.
Magnachip Semiconductor Corp reported that Chief of Manufacturing Seunghoon Lee received a grant of 30,000 shares of common stock on June 1, 2026. The award carried a price per share of $0.00, indicating a compensation-related equity grant rather than an open-market purchase.
Following this grant, Lee directly holds 158,201 shares of Magnachip common stock. The filing shows no derivative securities and no share sales, so this update reflects a routine increase in direct equity ownership through a stock award.
Magnachip Semiconductor director Nathan E. Gilbert reported an open-market purchase of 21,994 shares of Common Stock on behalf of GT Investments II Corp at $2.8667 per share. After this buy, GT Investments II Corp holds 158,200 shares indirectly, while Gilbert also holds 214,491 shares directly and additional smaller indirect positions through his spouse and children.
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 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.
MAGNACHIP SEMICONDUCTOR Corp insider Shin Young Park, Chief of Manufacturing, reported multiple equity transactions in company common stock. On 08/15/2025, Park acquired 30,750 shares at a stated price of $0, and on 12/31/2025, an additional 7,000 shares vested at $2.55 per share. Several transactions coded “F” on the same date reflect the issuer withholding 3,333, 2,778, 4,761, and 4,880 shares to cover tax obligations tied to earlier stock awards. After these moves, Park beneficially owns 128,201 shares directly. The filing also reports 15,375 performance-based restricted stock units, each linked to one share and vesting based on the company’s share price performance up to a target level by 01/31/2028.
Magnachip Semiconductor Corp. reported insider equity activity by its Chief Financial Officer, Shin Young Park. On 12/31/2025, the company withheld shares of common stock to cover the CFO's tax obligations arising from vesting awards. The issuer withheld 6,121 shares from a vesting of 12,508 shares originally granted on February 16, 2023, 12,234 shares from a vesting of 25,000 shares granted on June 1, 2024, and 17,977 shares from a vesting of 36,736 shares granted on June 1, 2025, each at a price of $2.55 per share. After these transactions, the reporting person beneficially owned 215,454 shares of common stock directly. These withholdings are routine administrative transactions to satisfy tax liabilities rather than open-market purchases or sales.
Magnachip Semiconductor Corp. director reports stock acquisition
A director of Magnachip Semiconductor Corp. (MX) reported acquiring 3,160 shares of common stock on 11/15/2025 at a stated price of $0.00 per share, which typically reflects a grant rather than an open-market purchase. Following this transaction, the director beneficially owns 97,843 shares of Magnachip common stock in direct ownership. This filing is a routine Form 4 disclosure of insider equity activity and does not, by itself, describe any change to the company’s operations or financial results.
Magnachip Semiconductor Corp (MX) reported a Form 4 showing a director acquired 6,320 shares of common stock on 11/15/2025 at a price of $0.00 per share. After this transaction, the director beneficially owns 213,013 shares directly, plus additional indirect holdings of common stock through GT Investments II Corp, a spouse, and children.
Camillo Martino, identified as a Director and an Officer (listed as Chairman and CEO in remarks), reported an insider grant on 10/01/2025. The Form 4 shows an award of 105,484 restricted stock units (RSUs) granted with a reported price of $0.00, increasing his direct beneficial ownership to 364,611 shares. The RSUs vest in full on the earlier of August 11, 2026 or a Change of Control as defined under the company plan. The filing also discloses 40,000 shares held indirectly by trust. The form is signed and dated 10/03/2025.