Insider trade

Director exercised or converted 482 AMKR derivative securities

Traded May 13, 2026 · Filed May 15, 2026

Amkor TechnologyAMKR

482
Shares

Why it stands out

Derivative exercise or conversion — not an open-market buy.

Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell

View the official recordSEC Form 4 — Statement of Changes in Beneficial Ownership

All the details

Dates, kept separate

Transaction date: May 13, 2026
Reporting period: Not applicable
Filed with the SEC: May 15, 2026

DirectorOption exercise

Context

Classification

option exercise

Code M — exercise or conversion of a derivative security

Planned / mechanical clue

Footnote references vesting of compensation awards

Only flagged when a footnote says so; never inferred

Source receipt

Record ID: 0001628280-26-035658

Filed / recorded

May 15, 2026, 8:37 PM UTC

Added to OQRO

Oct 6, 2026, 4:40 PM UTC

Parser

form4-xml-v2

Data quality

Verified: identifiers matched exactly

Issuer

AMKOR TECHNOLOGY, INC.

Issuer CIK

1047127

Ticker

AMKR

Reporting person

Guillaume Marie Jean Rutten

Relationship

Director

Security

Common Stock

Table

Non-derivative (Table I)

Transaction date

May 13, 2026

Transaction code

M

Shares / units

482

Price per share

$0.00

Acquired / disposed

Acquired (A)

Shares owned after

503,040

Ownership form

Direct

Amendment

No

Footnotes from the filing

On April 1, 2026, the Reporting Person was granted 482 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 "April 2026 RSUs"). In connection with the vesting of the April 2026 RSUs on May 13, 2026, the April 2026 RSUs converted into common stock of the Issuer on a one-for-one basis.