Transaction #25718 · Form 4 · 0001628280-25-058875

AMKOR TECHNOLOGY, INC. · Stock award · Restricted Stock Units

AMKOR TECHNOLOGY, INC. · Transacted December 23, 2025 · Filed December 29, 2025

Original SEC filing ↗

What does this filing report?

An SEC Form 4 filing for AMKOR TECHNOLOGY, INC. records a stock award involving Restricted Stock Units on December 23, 2025. The reported quantity was 20.0093. The filing date is December 29, 2025. This is one transaction record; amounts are not allocated among any joint reporting owners.

The acquisition category describes how securities were received. It does not by itself establish a cash purchase of common stock. Read the transaction code definitionsand the original filing before interpreting the amounts.

Transaction details

Company CIK
0001047127
Security type
Derivative
Acquisition type
Stock award · Code A
Quantity acquired
20.0093
Reported price
0
Reference value
0
Currency
Currency not specified
Ownership
Direct
Holdings after transaction
9,874.901
Ownership description
Not reported
SEC acceptance time
Dec 29, 2025, 8:31 AM EST
10b5-1 indication
Not indicated

Reference value is reported quantity × reported price. It is not a confirmed cash payment or an estimate of a derivative's economic value. A missing currency is not assumed to be USD.

Reporting owners

These are the reporting owners named in the filing. Quantities and amounts are not allocated among co-reporters. Roles reflect this filing, not a current profile.

Company listings

AMKR · Nasdaq

This transaction is not mapped to a specific company listing.

Derivative terms

Underlying security
Common Stock
Underlying quantity
20.0093
Conversion / exercise price
Not reported
Exercise date
Not reported
Expiration date
Not reported

Filing footnotes & remarks

F1
Represents dividend equivalent units ("DEUs") accrued upon the payment of a dividend on December 23, 2025 with respect to time-vested restricted stock units ("RSUs") of Amkor Technology, Inc. (the "Issuer") granted to the Reporting Person on May 17, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued.
F2
Represents DEUs accrued upon the payment of a dividend on December 23, 2025 with respect to RSUs of the Issuer granted to the Reporting Person on May 16, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued.
F3
Represents DEUs accrued upon the payment of a dividend on December 23, 2025 with respect to RSUs of the Issuer granted to the Reporting Person on May 15, 2025. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued.

Footnotes are reproduced as plain text from the current source filing. For the full context, read the original SEC filing.

This record was updated Eastern Time. This is the stored record update time, not the transaction date. Report a correction.