Mark N. Rogers - 16 Jun 2026 Form 4 Insider Report for AMKOR TECHNOLOGY, INC. (AMKR)

Reporting relationship: EVP & General Counsel
Issuer ticker: AMKR
Reported as of: 16 Jun 2026
Net transaction value: -$431,050
SEC form: 4
Accepted by SEC: 18 Jun 2026, 16:36:07 UTC
Prior SEC filing: 20 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Mark N. Rogers

Key filing fact

Mark N. Rogers filed Form 4 for AMKOR TECHNOLOGY, INC. (AMKR) on 18 Jun 2026.

Key facts

This page summarizes Mark N. Rogers's Form 4 filing for AMKOR TECHNOLOGY, INC. (AMKR).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 18 Jun 2026, 16:36.

Change

Previous filing in this sequence was filed on 20 May 2026.
Current net transaction value: -$431,050.

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 0001201997 Primary reporting owner

ROGERS MARK N

Relationship: EVP & General Counsel
Address: 2045 EAST INNOVATION CIRCLE, TEMPE
Signature: /s/ Mark N. Rogers
Signature date: 18 Jun 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: +5,000
Change %: +13%
Price: $7.40^*
Shares after: 43,904
Date: 16 Jun 2026
Ownership: Direct

AMKR transaction

Common Stock

Sale

Transaction value: $431,050
Shares: -5,000
Change %: -11%
Price: $86.21
Shares after: 38,904
Date: 16 Jun 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

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

AMKR transaction Derivative

Employee Stock Option (Right-to-Buy)

Options Exercise

Transaction value
Shares: -5,000
Change %: -5.9%
Price: $0.000000^*
Shares after: 80,000
Date: 16 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 5,000
Exercise price: $7.40
Footnotes: F2

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

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 2 footnotes

Footnote F1

The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 1, 2025.

Footnote F2

This stock option (the "Option") to acquire 200,000 shares of Amkor Technology, Inc. common stock (the "Option Shares") was granted on June 10, 2019 (the "Option Grant Date") and vested over four years as follows: (i) with respect to 25% of the Option Shares, on the first anniversary of the Option Grant Date; and (ii) with respect to the remainder of the Option Shares, in equal quarterly installments thereafter, such that 100% of the Option vested on the fourth anniversary of the Option Grant Date.