Amkor (NASDAQ: AMKR) prices $500M 2033 notes, plans 2027 debt redemption

Rhea-AI Filing Summary

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.

Insights

Capital structure and credit analyst

Amkor prices $500M 2033 notes, plans to redeem $400M 2027 debt.

Amkor is issuing $500,000,000 of 5.875% Senior Notes due 2033 and plans to use the proceeds to redeem its $400,000,000 of 6.625% senior notes due 2027, alongside fees and general corporate purposes. This extends debt maturities from 2027 to 2033 while modestly lowering the coupon rate on the refinanced portion.

The transaction structure allows the 2033 notes offering to be completed even if the 2027 notes redemption does not occur, which provides flexibility but means the final capital structure depends on whether and when the 2027 notes are actually redeemed. The filing also clarifies that this disclosure is not itself a formal notice of redemption for the 2027 notes; investors will need to look for a separate redemption notice or future disclosures for execution details.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported)

September 8, 2025

AMKOR TECHNOLOGY, INC.

(Exact name of registrant as specified in its charter)

Delaware

000-29472

23-1722724

(State or Other Jurisdiction of Incorporation)

(Commission File Number)

(IRS Employer Identification No.)

2045 EAST INNOVATION CIRCLE

TEMPE, AZ 85284

(Address of principal executive offices, including zip code)

(480) 821-5000

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class			Trading Symbol			Name of Each Exchange on Which Registered
Common Stock, $0.001 par value			AMKR			The NASDAQ Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 8.01. Other Events.

On September 8, 2025, Amkor Technology, Inc. (the “Company”) issued a press release announcing the pricing of its offering of $500,000,000 aggregate principal amount of its 5.875% Senior Notes due 2033 (the “2033 Notes”). The Company also announced its intention to use the proceeds of the offering to redeem in full the $400,000,000 aggregate principal amount outstanding of its 6.625% senior notes due 2027 (the “2027 Notes”), to pay related fees and expenses, and for general corporate purposes. The consummation of the offering of the 2033 Notes will not be conditioned on the redemption of the 2027 Notes. A copy of this press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

This Current Report on Form 8-K does not constitute a notice of redemption of the 2027 Notes.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit						Description
99.1						Press release, dated September 8, 2025, announcing pricing of Amkor Technology, Inc.'s 5.875% Senior Notes due 2033 and intention to redeem senior notes due 2027.
104						Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

AMKOR TECHNOLOGY, INC.

By:

/s/ Mark N. Rogers

Mark N. Rogers

Executive Vice President, General Counsel, and Corporate Secretary

Date: September 8, 2025

FAQ

What debt offering did Amkor Technology, Inc. (AMKR) announce?

Amkor announced the pricing of an offering of $500,000,000 aggregate principal amount of its 5.875% Senior Notes due 2033.

How does Amkor (AMKR) plan to use the proceeds of the 2033 notes?

Amkor stated 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 for general corporate purposes.

Is the 2033 notes offering conditioned on redeeming Amkor’s 2027 notes?

No. Amkor disclosed that the consummation of the 5.875% Senior Notes due 2033 offering will not be conditioned on the redemption of the 6.625% senior notes due 2027.

Does this disclosure count as Amkor’s official notice of redemption for the 2027 notes?

No. Amkor explicitly stated that this report does not constitute a notice of redemption of the 6.625% senior notes due 2027.

When did Amkor (AMKR) announce the pricing of the 2033 senior notes?

Amkor issued a press release dated September 8, 2025 announcing the pricing of its 5.875% Senior Notes due 2033 and its intention to redeem the senior notes due 2027.

What exhibit is attached to Amkor’s 8-K related to the 2033 notes?

Exhibit 99.1 is a press release dated September 8, 2025 announcing the pricing of Amkor’s 5.875% Senior Notes due 2033 and its intention to redeem senior notes due 2027.