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 OwnershipAll the details
Dates, kept separate
Transaction date
Nov 14, 2025
Reporting period
Not applicable
Filed with the SEC
Nov 18, 2025
OfficerOption exercise
Context
Classification
option exercise
Code M — exercise or conversion of a derivative security
Planned / mechanical clue
Footnote references tax withholding
Only flagged when a footnote says so; never inferred
Source receipt
Record ID
0001628280-25-052924
Filed / recorded
Nov 18, 2025, 9:33 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
Kevin Engel
Relationship
Officer
Officer title
Executive Vice President
Security
Restricted Stock Units
Table
Derivative (Table II)
Transaction date
Nov 14, 2025
Transaction code
M
Shares / units
369
Price per share
$0.00
Acquired / disposed
Disposed (D)
Shares owned after
32,225
Ownership form
Direct
Amendment
No
Footnotes from the filing
The reported transaction involved the withholding of 369 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status.