Welcome to our dedicated page for AMKOR TECHNOLOGY SEC filings (Ticker: AMKR), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Amkor Technology Inc. filings document the regulatory record for a Nasdaq-listed outsourced semiconductor packaging and test company. The company’s 8-K reports furnish results of operations and financial condition, disclose material agreements and other events, and describe capital-structure matters involving common stock, senior notes and convertible senior notes.
AMKR filings also cover governance and ownership subjects through definitive proxy materials, officer appointments and underwriting agreements related to registered secondary offerings. Recent debt disclosures describe 0.00% convertible senior notes due 2031, subsidiary guarantees and their relationship to other senior unsecured indebtedness, while earnings-related filings include non-GAAP measures such as EBITDA alongside GAAP results.
Form 144 filing reports insider dispositions totaling 30,000 shares. The filing lists two recent sales by Guillaume Rutten: 10,000 shares on 02/17/2026 for $458,927 and 20,000 shares on 02/24/2026 for $976,070. The filing also lists securities classified as Performance Shares (6,667 and 25,000) and Restricted Stock (18,333) with grant dates in 2024.
Amkor Technology director Carolin Roger Anthony reported an exercise-and-sell transaction in company stock. On May 5, 2026, he exercised options to acquire 20,000 shares of common stock at $11.71 per share, then sold 20,000 shares in open-market trades at a weighted average price of $76.24, with individual sale prices ranging from $76.11 to $76.48. After these transactions, he directly owned 94,409 shares of Amkor common stock.
Amkor Technology director Winston J. Churchill reported an open-market sale of 7,000 shares of the company’s Common Stock. The shares were sold at an average price of $76.45 per share. After this transaction, he directly holds 18,888 shares of Amkor Technology.
AMKOR TECHNOLOGY, INC. director Douglas A. Alexander reported an option exercise-and-sale on Common Stock. On May 5, 2026, he exercised options for 5,000 shares at strike prices of $8.51 and $9.45, then sold 5,000 shares in open-market transactions at $76.58 per share. Following these transactions, he directly owned 29,109 common shares.
Amkor Technology, Inc. entered into an indenture and issued $1.15 billion of 0.00% Convertible Senior Notes due 2031, fully and unconditionally guaranteed on a senior, unsecured basis by certain subsidiaries. The notes bear no regular interest and mature on July 15, 2031, with conversion available upon specified events before April 15, 2031 and at any time thereafter until shortly before maturity.
The initial conversion rate is 9.4013 shares per $1,000 principal amount, implying an initial conversion price of about $106.37 per share, subject to customary adjustments and potential increases after certain corporate events. Amkor also entered into Capped Call Transactions with a cap price initially at $139.50 per share, paying approximately $56.4 million to help offset dilution and cash outlays above principal on conversion. Initially, up to 16,487,435 shares may be issuable upon conversion based on the initial maximum conversion rate.
Amkor Technology’s largest shareholders, the Kim family and related trusts and entities, report beneficial ownership of 122,666,110 common shares, or about 49.38% of Amkor’s outstanding stock. This figure includes 550,000 shares that may be acquired through options exercisable within sixty days of May 1, 2026.
The ownership percentage is based on 247,872,518 Amkor shares outstanding as of April 21, 2026. The filing also details a new secured margin line of credit of up to $250 million from JPMorgan to Kim Capital Partners – KCP, LLC, backed by a pledge of 16,710,668 Amkor shares and guaranteed by Susan Y. Kim and a related trust.