Key facts
- This page summarizes Winston J. Churchill's Form 4 filing for AMKOR TECHNOLOGY, INC. (AMKR).
- 3 reported transactions and 1 derivative row are listed below.
- Accepted by SEC: 16 Jun 2026, 16:35.
Winston J. Churchill - 12 Jun 2026 Form 4 Insider Report for AMKOR TECHNOLOGY, INC. (AMKR)
- Reporting relationship
- Director
- Issuer ticker
- AMKR
- Reported as of
- 12 Jun 2026
- Net transaction value
- -$391,000
- SEC form
- 4
- Accepted by SEC
- 16 Jun 2026, 16:35:50 UTC
- Prior SEC filing
- 15 May 2026
- Next SEC filing
- 25 Jun 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Mark N. Rogers, Attorney-in-Fact for Winston J. Churchill
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Winston J. Churchill filed Form 4 for AMKOR TECHNOLOGY, INC. (AMKR) on 16 Jun 2026.
Change
- Previous filing in this sequence was filed on 15 May 2026.
- Current net transaction value: -$391,000.
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
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0000923792
Primary reporting owner
CHURCHILL WINSTON J
- Relationship
- Director
- Address
- 500 SE MIZNER BLVD., APT 305A, BOCA RATON
- Signature
- /s/ Mark N. Rogers, Attorney-in-Fact for Winston J. Churchill
- Signature date
- 16 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 %
- +17%
- Price
- $19.39*
- Shares after
- 33,781
- Date
- 12 Jun 2026
- Ownership
- Direct
AMKR
transaction
Common Stock
Sale
- Transaction value
- $391,000
- Shares
- -5,000
- Change %
- -15%
- Price
- $78.20
- Shares after
- 28,781
- Date
- 12 Jun 2026
- Ownership
- Direct
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
AMKR
transaction
Derivative
Director Stock Option (Right-to-Buy)
Options Exercise
- Transaction value
- Shares
- -5,000
- Change %
- -33%
- Price
- $0.000000*
- Shares after
- 10,000
- Date
- 12 Jun 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 5,000
- Exercise price
- $19.39
- Footnotes
- F1
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 1 footnote
Footnote F1
This stock option to acquire 20,000 shares of Common Stock of Amkor Technology, Inc. was granted on May 18, 2021 and vested in full on May 17, 2022.