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
Dec 16, 2025
Reporting period
Not applicable
Filed with the SEC
Dec 17, 2025
OfficerOption 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
0001628280-25-057626
Filed / recorded
Dec 17, 2025, 9:06 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
Mark N Rogers
Relationship
Officer
Officer title
EVP & General Counsel
Security
Employee Stock Option (Right-to-Buy)
Table
Derivative (Table II)
Transaction date
Dec 16, 2025
Transaction code
M
Shares / units
20,000
Price per share
$0.00
Acquired / disposed
Disposed (D)
Shares owned after
110,000
Ownership form
Direct
Amendment
No
Footnotes from the filing
This stock option (the "Option") to acquire 200,000 shares of the Issuer's 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.
