Welcome to our dedicated page for Amkor Tech 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.
The Amkor Technology, Inc. (Nasdaq: AMKR) SEC filings page on Stock Titan provides direct access to the company’s regulatory disclosures as filed with the U.S. Securities and Exchange Commission. Amkor is a U.S.-headquartered outsourced semiconductor assembly and test (OSAT) provider and a global leader in semiconductor packaging and test services. Its filings offer detailed insight into financial performance, capital structure, governance, and major corporate actions.
Investors can review annual reports on Form 10-K and quarterly reports on Form 10-Q (when available) to understand Amkor’s net sales by advanced and mainstream product categories, packaging and test services mix, end-market distribution across communications, computing, automotive, industrial and consumer segments, and key metrics such as gross margin and operating income. These reports also describe risk factors, business operations, and the company’s position in the semiconductor packaging and test industry.
Current reports on Form 8-K document material events, including earnings releases, CEO succession plans, executive appointments, board changes, amendments to credit facilities, and new debt offerings. For example, Amkor has filed 8-Ks describing its 5.875% Senior Notes due 2033, the related indenture terms, and the planned redemption of its 6.625% Senior Notes due 2027, as well as the creation of Term A-1 Loans under its credit agreement.
This page also surfaces information on debt covenants and events of default from indenture-related filings, giving readers visibility into limitations on additional indebtedness, liens, sale-leaseback transactions, and certain corporate restructurings. Where applicable, insider transaction reports on Form 4 and proxy statements on Schedule 14A can be used to analyze executive compensation, ownership, and governance practices.
Stock Titan enhances these filings with AI-powered summaries that highlight key points from lengthy documents, helping readers quickly interpret complex 10-K, 10-Q, and 8-K disclosures. Real-time updates from EDGAR ensure that new filings, including material debt, equity, or governance changes, appear promptly, while AI-generated overviews help users focus on the sections most relevant to Amkor’s semiconductor packaging and test business.
Amkor Technology insider plans another stock sale under Rule 144. A Form 144 notice details an intent to sell 5,000 shares of Amkor common stock through Morgan Stanley Smith Barney LLC on or about 01/16/2026, with the shares listed on NASDAQ. The filing notes that 247,193,437 common shares are outstanding.
The 5,000 shares to be sold were acquired the same day, 01/16/2026, via a stock option exercise from the issuer for cash. The notice also reports that Mark N. Rogers sold 20,000 Amkor common shares on 12/16/2025 for gross proceeds of $859,094 and another 20,000 shares on 11/17/2025 for gross proceeds of $633,786.
A holder of AMKR common stock has filed a notice of proposed resale under Rule 144, indicating an intent to sell 10,000 shares through Morgan Stanley Smith Barney LLC on or about 01/15/2026 on the NASDAQ. The filing lists an aggregate market value of about
The shares proposed for sale were acquired as restricted stock from the issuer on
Amkor Technology director Winston J. Churchill reported exercising stock options and selling shares of the company. On 12/15/2025, he exercised options to buy 5,000 shares of common stock at an exercise price of $19.39 per share, then sold 5,000 shares of common stock at a price of $44.29 per share on the same date. After these transactions, he directly owned 25,888 shares of Amkor common stock. He also continued to hold 15,000 director stock options with a $19.39 exercise price, expiring on 05/18/2031. The option was originally granted on 05/18/2021 for 20,000 shares and fully vested on 05/17/2022.
Amkor Technology, Inc. reports that its President and CEO, who is also a Director, executed a planned stock sale. On 12/15/2025, the reporting person sold 10,000 shares of Amkor common stock at a weighted average price of $44.80 per share, as disclosed in Table I. This transaction was carried out under a Rule 10b5-1 trading plan adopted on June 6, 2025, meaning the sale followed a pre-established schedule rather than being made at the insider’s discretion at the time of sale.
After this transaction, the reporting person beneficially owns 336,699 shares of Amkor common stock in direct form. The filing notes that the actual sales occurred in multiple trades at prices ranging from $44.37 to $45.18 per share, and the insider has undertaken to provide detailed breakdowns of the share amounts at each price upon request.
Amkor Technology executive Mark N. Rogers, EVP & General Counsel, reported an option exercise and share sale. On 12/16/2025 he exercised employee stock options for 20,000 shares of common stock at an exercise price of $7.40 per share, increasing his directly held shares before the sale.
That same day, he sold 20,000 shares of Amkor common stock at a weighted average price of $42.95 per share, in multiple trades between $42.15 and $43.65, under a Rule 10b5-1 trading plan adopted on August 1, 2025. After these transactions, he directly owned 23,862 shares of common stock and 110,000 stock options, part of an original 200,000-share option grant from June 10, 2019 that vested over four years.
Amkor Technology, Inc. director MaryFrances McCourt reported an insider transaction involving company common stock. On 12/12/2025, she exercised a director stock option (transaction code M) to acquire 20,000 shares of common stock at an exercise price of $19.39 per share, increasing her directly held position to 75,918 shares.
On the same date, she sold 20,000 shares of Amkor common stock (transaction code S) at a weighted average price of $46.02 per share, with individual trades executed between $45.98 and $46.09. After the sale, McCourt directly beneficially owned 55,918 shares of Amkor common stock. The option originally covered 20,000 shares, was granted on May 18, 2021, vested in full on May 17, 2022, and carries an expiration date of May 18, 2031.
Amkor Technology Executive Vice President Kevin Engel reported selling 11,000 shares of common stock on 12/12/2025 at a weighted average price of $46.21 per share, with individual trades executed between $45.92 and $46.52. After these sales, he directly beneficially owns 349 shares of Amkor common stock.
A footnote explains that a filing on February 21, 2025 overreported the number of shares withheld to cover tax obligations by 28 shares, which had caused his reported holdings to be understated by that amount. The current ownership figure reflects this 28-share correction.
Amkor Technology director Gil C. Tily reported selling 20,000 shares of common stock on December 12, 2025 at a weighted average price of $46.44 per share. After this transaction, he directly beneficially owns 123,806 Amkor shares. The sale was executed through multiple trades at prices ranging from $45.91 to $46.83, and the reporting person has committed to provide details of the individual trade prices upon request.
Amkor Technology, Inc. disclosed that, on December 4, 2025, a grantor retained annuity trust named for the reporting person distributed 758,000 shares of Amkor common stock to that person as a gift at $0. Because the reporting person was already the annuitant and sole trustee of the trust, this was described as a mere change in the form of ownership from indirect to direct.
After the transaction, the reporting person directly held 6,090,494 shares of Amkor common stock and continued to hold additional shares indirectly through various trusts and entities, including Sujochil, LP and Sujoda Investments, LP. The reporting person states that beneficial ownership of these securities is disclaimed except to the extent of her pecuniary interest.
Amkor Technology (AMKR) director and 10% owner Susan Y. Kim reported several internal trust-related movements of Amkor common stock on November 20, 2025, all at a reported price of $0 per share. A 2024 Grantor Retained Annuity Trust (GRAT) for Susan Y. Kim distributed 876,000 shares to her directly, changing her holdings from indirect to direct ownership. Separate 2024 GRATs for James J. Kim and Agnes C. Kim distributed 965,000 and 705,000 shares, respectively, to other family trusts where she serves as trustee or co-trustee.
After these transactions, Susan Y. Kim reports substantial indirect beneficial ownership through multiple vehicles, including 3,453,610 shares held by family trusts (excluding GRATs), 3,800,000 shares held by certain GRATs, 19,484,809 shares held by Sujochil, LP, 16,710,668 shares held by Kim Capital Partners - KCP, LLC, and 3,789,479 shares held by Sujoda Investments, LP. She disclaims beneficial ownership beyond her pecuniary interest in these holdings.
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