John D. Liu - 14 May 2025 Form 4 Insider Report for AMKOR TECHNOLOGY, INC. (AMKR)

Reporting relationship: Director
Issuer ticker: AMKR
Reported as of: 14 May 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 16 May 2025, 16:39:38 UTC
Prior SEC filing: 16 Apr 2025
Next SEC filing: 27 Jun 2025
Source filing: View source filing
Reporting owner signature: Mark N. Rogers, Attorney-in-Fact for John D. Liu

Key filing fact

John D. Liu filed Form 4 for AMKOR TECHNOLOGY, INC. (AMKR) on 16 May 2025.

Key facts

This page summarizes John D. Liu's Form 4 filing for AMKOR TECHNOLOGY, INC. (AMKR).
3 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 16 May 2025, 16:39.

Change

Previous filing in this sequence was filed on 16 Apr 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001288449 Primary reporting owner

LIU JOHN D

Relationship: Director
Address: 2045 E INNOVATION CIRCLE, TEMPE
Signature: Mark N. Rogers, Attorney-in-Fact for John D. Liu
Signature date: 16 May 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

AMKR transaction

Common Stock

Options Exercise

Transaction value: $0
Shares: +2,983
Change %
Price: $0.000000
Shares after: 2,983
Date: 14 May 2025
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

AMKR transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value: $0
Shares: -2,983
Change %: -100%
Price: $0.000000
Shares after: 0
Date: 14 May 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,983
Exercise price
Footnotes: F1

AMKR transaction Derivative

Restricted Stock Units

Award

Transaction value: $0
Shares: +9,789
Change %
Price: $0.000000
Shares after: 9,789
Date: 15 May 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 9,789
Exercise price
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

On December 16, 2024, the Reporting Person was granted 2,970 time-vested restricted stock units ("RSUs") pursuant to the Amkor Technology, Inc. (the "Issuer") 2021 Equity Incentive Plan, as amended (the "Plan"), and the applicable award agreement (the "2024 RSUs"). In connection with the vesting of the 2024 RSUs on May 14, 2025: (i) 0.1825 of the 2024 RSUs, which had accrued as dividend equivalent units ("DEUs") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2024 RSUs, including 13 DEUs, converted into common stock of the Issuer on a one-for-one basis.

Footnote F2

Represents shares of common stock underlying RSUs granted on May 15, 2025 (the "Grant Date") pursuant to the Plan (the "2025 RSUs"). Subject to the terms and conditions of the applicable award agreement, the 2025 RSUs may be converted into common stock of the Issuer on a one-for-one basis and will vest in full on the earlier of the first anniversary of the Grant Date or the date of the Issuer's first annual meeting of stockholders immediately following the Grant Date. The 2025 RSUs were awarded for no consideration other than the Reporting Person's service as a director of the Issuer.