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.
Guillaume M. J. Rutten, President and CEO and director of Amkor Technology (AMKR), reported a sale of 10,000 shares of AMKR common stock on 09/23/2025 at $30 per share under a pre-existing Rule 10b5-1 trading plan adopted on 06/06/2025. After the transaction, the reporting person beneficially owned 358,007 shares. The Form 4 was signed by an attorney-in-fact and indicates the sale was executed pursuant to the written plan, which provides an affirmative defense under Rule 10b5-1. No derivative transactions or other changes in ownership were reported on this filing.
AMKOR TECHNOLOGY, INC. (AMKR) submitted a Form 144 reporting a proposed sale of 10,000 shares of common stock through Morgan Stanley Smith Barney LLC on 09/23/2025, with an aggregate market value of $300,000.00. The filing shows the 10,000 shares were originally acquired as restricted stock in three grants: 4,808 shares on 02/24/2023, 192 shares on 07/30/2023, and 5,000 shares on 04/30/2023. The total number of shares outstanding is listed as 247,143,055. The filer certifies no material nonpublic information and reports no sales of the issuer's securities by the filer in the past three months.
Amkor Technology, Inc. issued $500,000,000 aggregate principal amount of 5.875% senior unsecured notes due October 1, 2033, under a newly executed indenture that includes customary covenants limiting certain debt, liens, sale-leaseback transactions and consolidations. Guardian Assets, Inc. initially guarantees the 2033 Notes and additional domestic subsidiaries that guarantee the company’s U.S. senior secured facility will be required to guarantee them. The company may redeem the notes under specified make‑whole and step‑down schedules and must offer to repurchase the notes at 101% upon a defined change of control. Amkor also announced redemption of all $400,000,000 of its 6.625% senior notes due 2027, to be funded with proceeds from the 2033 issuance.
Farshad Haghighi, Executive Vice President of Amkor Technology (AMKR), reported a sale of company stock on 09/09/2025. The filing shows a disposition of 11,792 shares at a reported price of $25 per share, leaving the reporting person with 8,354 shares beneficially owned after the transaction. The Form 4 is signed by an attorney-in-fact and records the transaction under Section 16.
Form 144 notice for Amkor Technology, Inc. (AMKR) shows a proposed sale of 11,792 common shares by an insider through Morgan Stanley Smith Barney, with an aggregate market value of $294,800 based on the filing. The shares represent part of previously acquired awards (restricted stock and performance shares) granted by the issuer between August 2024 and February 2025. The filing states the approximate sale date as 09/09/2025 on the NASDAQ and confirms no securities were reported sold by this person in the past three months.
Amkor Technology, Inc. disclosed that it has priced an offering of $500,000,000 aggregate principal amount of its 5.875% Senior Notes due 2033. The company stated that it intends to use the proceeds to redeem in full the $400,000,000 aggregate principal amount outstanding of its 6.625% senior notes due 2027, pay related fees and expenses, and fund general corporate purposes.
The company noted that completion of the 2033 notes offering will not be conditioned on redemption of the 2027 notes, and this report does not constitute a notice of redemption for the 2027 notes. The pricing details and related information were first shared in a press release dated September 8, 2025, which is attached as an exhibit.
Amkor Technology, Inc. announced its intention to offer $400,000,000 aggregate principal amount of senior notes due 2033. The company stated that it intends to use the proceeds from this proposed 2033 notes offering to redeem in full the $400,000,000 aggregate principal amount outstanding of its 6.625% senior notes due 2027.
The company noted that completion of the 2033 notes offering will not be conditioned on the redemption of the 2027 notes, and this disclosure does not constitute a formal notice of redemption. Amkor attached the related press release as an exhibit to provide further details on the proposed financing and planned redemption.
Form 4 highlight: On 01-Aug-2025 the "2023 Grantor Retained Annuity Trust of Agnes C. Kim" executed two Code G (bona-fide gift) transactions involving Amkor Technology (AMKR) common stock.
- Gifted 280,000 shares to Susan Y. Kim.
- Gifted 280,001 shares to John T. Kim.
No cash consideration was received (price $0). The trust’s direct beneficial ownership fell from 560,001 shares to zero. The filing states that the trust does not concede beneficial ownership of shares now held by other group members.
Because the transfers are intra-family gifts rather than open-market sales, trading supply is unchanged. Still, investors may note that one insider vehicle has fully exited its direct position, marginally reducing reported insider ownership.