Roger A. Carolin - 05 May 2026 Form 4 Insider Report for AMKOR TECHNOLOGY, INC. (AMKR)

Reporting relationship: Director
Issuer ticker: AMKR
Reported as of: 05 May 2026
Net transaction value: -$1,524,800
SEC form: 4
Accepted by SEC: 07 May 2026, 16:36:44 UTC
Prior SEC filing: 20 Apr 2026
Next SEC filing: 15 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Mark N. Rogers, Attorney-in-Fact for Roger A. Carolin

Key filing fact

Roger A. Carolin filed Form 4 for AMKOR TECHNOLOGY, INC. (AMKR) on 07 May 2026.

Key facts

This page summarizes Roger A. Carolin's Form 4 filing for AMKOR TECHNOLOGY, INC. (AMKR).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 07 May 2026, 16:36.

Change

Previous filing in this sequence was filed on 20 Apr 2026.
Current net transaction value: -$1,524,800.

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 0001351909 Primary reporting owner

Carolin Roger Anthony

Relationship: Director
Address: 7 GREAT VALLEY PARKWAY,, SUITE 190, MALVERN
Signature: /s/ Mark N. Rogers, Attorney-in-Fact for Roger A. Carolin
Signature date: 07 May 2026

Reported non-derivative transactions

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

AMKR transaction

Common Stock

Options Exercise

Transaction value
Shares: +20,000
Change %: +21%
Price: $11.71^*
Shares after: 114,409
Date: 05 May 2026
Ownership: Direct

AMKR transaction

Common Stock

Sale

Transaction value: $1,524,800
Shares: -20,000
Change %: -17%
Price: $76.24
Shares after: 94,409
Date: 05 May 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

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

AMKR transaction Derivative

Director Stock Option (Right to Buy)

Options Exercise

Transaction value
Shares: -20,000
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 05 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 20,000
Exercise price: $11.71
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

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $76.11 to $76.48. The Reporting Person hereby undertakes to provide, upon request, to the staff of the Securities and Exchange Commission, Amkor Technology, Inc. (the "Issuer"), or any security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

Footnote F2

This stock option to acquire 20,000 shares of the Issuer's Common Stock was granted on May 2, 2017, vested in full on May 1, 2018.