James J. Kim

Insider Reports History

Reporting-owner location: Paoli, PA
Latest reporting-owner signature: /s/ Brian D. Short, Attorney-in-Fact for James J. Kim
Source: Latest parsed Forms 3/4/5 signature
Transaction source note: Rows are grouped by transaction date from the original SEC filing. Open the aggregated insider activity page to review issuer-level activity across dates.

Reported holdings for James J. Kim

Form 4 holding Member of 10% owner group (5), 10%+ Owner

AMKOR TECHNOLOGY, INC.

Security class: Common Stock
Shares / value: 7,828,682
Estimated value: $675,067,248
Report date: 20 Jul 2026
Price: $86.23
Ownership: By John T. Kim Family Trust U/A dtd. 12/11/12

Form 4 holding Member of 10% owner group (5), 10%+ Owner

AMKOR TECHNOLOGY, INC.

Security class: Common Stock
Shares / value: 1,957,350
Estimated value: $168,782,290
Report date: 20 Jul 2026
Price: $86.23
Ownership: By John T. Kim G-S Trust dtd. 12/11/12

Form 4 holding Member of 10% owner group (5), 10%+ Owner

AMKOR TECHNOLOGY, INC.

Security class: Common Stock
Shares / value: 725,000
Estimated value: $62,516,750
Report date: 20 Jul 2026
Price: $86.23
Ownership: Susan Y. Kim 2023 Family Distribution Trust

Form 4 holding Member of 10% owner group (5), 10%+ Owner

AMKOR TECHNOLOGY, INC.

Security class: Common Stock
Shares / value: 511,645
Estimated value: $44,119,148
Report date: 20 Jul 2026
Price: $86.23
Ownership: Direct

Form 4 holding Member of 10% owner group (5), 10%+ Owner

AMKOR TECHNOLOGY, INC.

Security class: Common Stock
Shares / value: 164,678
Estimated value: $14,200,183
Report date: 20 Jul 2026
Price: $86.23
Ownership: By self as Trustee of Trust U/A dtd. 12/11/12

Form 4 holding Member of 10% owner group (5), 10%+ Owner

AMKOR TECHNOLOGY, INC.

Security class: Employee Stock Option (Right-to-Buy)
Shares / value: 0
Estimated value
Report date: 20 Jul 2026
Price
Ownership: Direct
Underlying class: Common Stock
Underlying amount

Insider Reports Filed by James J. Kim

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 20 Jul 2026
Transactions: 4
Transaction value: $0
Accepted by SEC: 22 Jul 2026, 16:32
Role: Member of 10% owner group (5), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 26 Dec 2025
Transactions: 1
Transaction value: $0
Accepted by SEC: 30 Dec 2025, 16:40
Role: Member of 10% owner group (4), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 19 Dec 2025
Transactions: 2
Transaction value: $0
Accepted by SEC: 23 Dec 2025, 19:01
Role: Member of 10% owner group (6), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 21 Nov 2025
Transactions: 1
Transaction value: $0
Accepted by SEC: 24 Nov 2025, 20:58
Role: Member of 10% owner group (4), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 01 Aug 2025
Transactions: 1
Transaction value: -$9,648,720
Accepted by SEC: 05 Aug 2025, 19:32
Role: Member of 10% owner group (4), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 30 Jul 2025
Transactions: 2
Transaction value: $0
Accepted by SEC: 01 Aug 2025, 16:42
Role: Member of 10% owner group (4), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 24 Feb 2025
Transactions: 1
Transaction value: -$18,999,995
Accepted by SEC: 26 Feb 2025, 17:13
Role: Member of 10% owner group (4), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 19 Feb 2025
Transactions: 2
Transaction value: -$34,716
Accepted by SEC: 21 Feb 2025, 16:46
Role: Member of 10% owner group (5), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 17 Jan 2025
Transactions: 1
Transaction value: $0
Accepted by SEC: 22 Jan 2025, 16:59
Role: Member of 10% owner group (5), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 31 Oct 2024
Transactions: 12
Transaction value: -$128,701
Accepted by SEC: 04 Nov 2024, 16:34
Role: Member of 10% owner group (11), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 08 Aug 2024
Transactions: 2
Transaction value: $0
Accepted by SEC: 12 Aug 2024, 17:21
Role: Director, Member of 10% owner group (5), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 12 Jun 2024
Transactions: 2
Transaction value: $0
Accepted by SEC: 14 Jun 2024, 17:30
Role: Director, Member of 10% owner group (5), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 23 Feb 2024
Transactions: 3
Transaction value: -$32,150
Accepted by SEC: 27 Feb 2024, 16:30
Role: Director, Member of 10% owner group (5), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 20 Feb 2024
Transactions: 3
Transaction value: -$207,536
Accepted by SEC: 22 Feb 2024, 17:33
Role: Director, Member of 10% owner group (6), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 16 Feb 2024
Transactions: 3
Transaction value: -$27,669
Accepted by SEC: 21 Feb 2024, 17:02
Role: Director, Member of 10% owner group (5), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 09 Feb 2024
Transactions: 3
Transaction value: -$33,727
Accepted by SEC: 13 Feb 2024, 17:14
Role: Director, Member of 10% owner group (5), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 22 Dec 2023
Transactions: 1
Transaction value: $0
Accepted by SEC: 27 Dec 2023, 16:30
Role: Director, Member of 10% owner group (4), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 19 Dec 2023
Transactions: 11
Transaction value: -$8,752
Accepted by SEC: 21 Dec 2023, 17:10
Role: Director, Member of 10% owner group (8), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 14 Nov 2023
Transactions: 2
Transaction value: $0
Accepted by SEC: 16 Nov 2023, 18:00
Role: Director, Member of 10% owner group (6), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 19 Oct 2023
Transactions: 2
Transaction value: $0
Accepted by SEC: 23 Oct 2023, 18:00
Role: Director, Member of 10% owner group (4), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 11 Oct 2023
Transactions: 1
Transaction value: $0
Accepted by SEC: 13 Oct 2023, 18:00
Role: Director, Member of 10% owner group (4), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 14 Sep 2023
Transactions: 2
Transaction value: $0
Accepted by SEC: 18 Sep 2023, 18:00
Role: Director, Member of 10% owner group (4), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 06 Sep 2023
Transactions: 1
Transaction value: -$232,200,000
Accepted by SEC: 08 Sep 2023, 18:48
Role: Director, Member of 10% owner group (4), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 25 Jul 2023
Transactions: 2
Transaction value: $0
Accepted by SEC: 27 Jul 2023, 18:00
Role: Director, Member of 10% owner group (7), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 01 May 2023
Transactions: 2
Transaction value: $0
Accepted by SEC: 03 May 2023, 18:00
Role: Director, Member of 10% owner group (5), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 22 Feb 2023
Transactions: 10
Transaction value: +$47,872,241
Accepted by SEC: 24 Feb 2023, 18:20
Role: Director, Member of 10% owner group (12), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 16 Feb 2023
Transactions: 1
Transaction value: $0
Accepted by SEC: 17 Feb 2023, 16:09
Role: Director, Member of 10% owner group, 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 10 Feb 2023
Transactions: 3
Transaction value: -$29,836
Accepted by SEC: 14 Feb 2023, 18:56
Role: Director, Member of 10% owner group (5), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 09 Feb 2023
Transactions: 1
Transaction value: $0
Accepted by SEC: 16 Feb 2023, 11:53
Role: Director, Member of 10% owner group (5), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 19 Dec 2022
Transactions: 6
Transaction value: -$4,429
Accepted by SEC: 21 Dec 2022, 16:11
Role: Director, Member of 10% owner group (5), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 01 Dec 2022
Transactions: 3
Transaction value: $0
Accepted by SEC: 19 Dec 2022, 14:04
Role: Director, Member of 10% owner group (7), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 12 Jul 2022
Transactions: 1
Transaction value: $0
Accepted by SEC: 01 Aug 2022, 14:46
Role: Director, Member of 10% owner group (5), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 04 Apr 2022
Transactions: 1
Transaction value: $0
Accepted by SEC: 20 Apr 2022, 19:12
Role: Director, Member of 10% owner group (4), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 24 Feb 2022
Transactions: 1
Transaction value: $0
Accepted by SEC: 25 Feb 2022, 16:39
Role: Director, Member of 10% owner group (5), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 11 Feb 2022
Transactions: 1
Transaction value: -$14,296
Accepted by SEC: 15 Feb 2022, 16:21
Role: Director, Member of 10% owner group (5), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 18 Jan 2022
Transactions: 1
Transaction value: -$2,996,816
Accepted by SEC: 27 Jan 2022, 19:00
Role: Director, Member of 10% owner group (4), 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 30 Dec 2021
Transactions: 4
Transaction value: +$91,599,968
Accepted by SEC: 04 Jan 2022, 14:40
Role: Director, Member of 10% owner group (6), 10%+ Owner
Next action: Open filing details

4/A AMKR

AMKOR TECHNOLOGY, INC.

Report period: 27 Dec 2021
Transactions: 1
Transaction value: $0
Accepted by SEC: 20 Apr 2022, 21:04
Role: Director, Member of 10% owner group, 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 21 Dec 2021
Transactions: 1
Transaction value: -$2,124
Accepted by SEC: 23 Dec 2021, 19:41
Role: Director, Other*, 10%+ Owner
Next action: Open filing details

4 AMKR

AMKOR TECHNOLOGY, INC.

Report period: 14 Jul 2021
Transactions: 4
Transaction value: -$33,366,555
Accepted by SEC: 21 Jan 2022, 10:38
Role: Director, Member of 10% owner group (7), 10%+ Owner
Next action: Open filing details

4/A AMKR

AMKOR TECHNOLOGY, INC.

Report period: 11 Feb 2021
Transactions: 1
Transaction value: $0
Accepted by SEC: 29 Dec 2021, 18:54
Role: Director, Member of 10% owner group (7), 10%+ Owner
Next action: Open filing details

Insider Reports History

Continue from this owner filing history

Reported holdings for James J. Kim

Insider Reports Filed by James J. Kim