Cherie Buntyn - 02 Feb 2026 Form 3/A - Amendment Insider Report for AMKOR TECHNOLOGY, INC. (AMKR)

Reporting relationship: Chief Accounting Officer
Issuer ticker: AMKR
Reported as of: 02 Feb 2026
Net transaction value: $0
SEC form: 3/A - Amendment
Accepted by SEC: 16 Mar 2026, 18:36:33 UTC
Original report date: 02 Feb 2026
Prior SEC filing: 02 Jun 2023
Next SEC filing: 16 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Mark N. Rogers, Attorney-in-Fact for Cherie Buntyn

Key filing fact

Cherie Buntyn filed Form 3/A - Amendment for AMKOR TECHNOLOGY, INC. (AMKR) on 16 Mar 2026.

Key facts

This page summarizes Cherie Buntyn's Form 3/A - Amendment filing for AMKOR TECHNOLOGY, INC. (AMKR).
0 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 16 Mar 2026, 18:36.

Change

Previous filing in this sequence was filed on 02 Jun 2023.
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

Official SEC source

Ownership activity is grounded in SEC Form 3/A - Amendment disclosures.

View source filing

Reporting Owners (1)

CIK 0001936124 Primary reporting owner

Buntyn Cherie

Relationship: Chief Accounting Officer
Address: 2045 E INNOVATION CIRCLE, TEMPE
Signature: /s/ Mark N. Rogers, Attorney-in-Fact for Cherie Buntyn
Signature date: 16 Mar 2026

Reported non-derivative transactions

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

AMKR holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 0
Date: 02 Feb 2026
Ownership: Direct
Footnotes: F1

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

This amendment is being filed solely to add the Reporting Person's power of attorney as an exhibit to the original filing, which otherwise remains unchanged.

SEC remarks

Exhibit 24 - Power of Attorney