James J. Kim
CIK 1158839 · View on SEC EDGAR ↗
Activist
First SEC filing: May 5, 2026 · Latest: May 5, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 97 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
97 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 1, 2025 | AMKR | S | 441,589 | $21.85 | $9,648,720 | 2,341,239 Direct | -15.87% | Disposed | 131.4% (price as of 2026-08-20) |
| Feb. 24, 2025 | AMKR | S | 869,565 | $21.85 | $18,999,995 | 71,828 Direct | -92.37% | Disposed | 131.4% (price as of 2026-08-20) |
| Sept. 6, 2023 | AMKR | S | 10,000,000 | $23.22 | $232,200,000 | 39,594,980 Indirect | -20.16% | Disposed | 117.7% (price as of 2026-08-20) |
Showing latest 100 of 137 transactions
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| July 20, 2026 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (250,000) | $9.48 | Oct. 31, 2026 | 250,000 | Disposed |
| July 20, 2026 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (200,000) | $9.86 | Oct. 31, 2026 | 200,000 | Disposed |
| Oct. 31, 2024 | AMKR | Restricted Stock Units | Common Stock (6,457) | — | — | 6,457 | Disposed |
| Oct. 31, 2024 | AMKR | Restricted Stock Units | Common Stock (1,639) | — | — | 1,639 | Disposed |
| Oct. 31, 2024 | AMKR | Restricted Stock Units | Common Stock (1,840) | — | — | 1,840 | Disposed |
| Oct. 31, 2024 | AMKR | Restricted Stock Units | Common Stock (1,962) | — | — | 1,962 | Disposed |
| Feb. 23, 2024 | AMKR | Restricted Stock Units | Common Stock (2,599) | — | — | 2,599 | Disposed |
| Feb. 20, 2024 | AMKR | Restricted Stock Units | Common Stock (27,731) | — | — | 27,731 | Acquired |
| Feb. 16, 2024 | AMKR | Restricted Stock Units | Common Stock (2,242) | $0.00 | — | 2,242 | Disposed |
| Feb. 9, 2024 | AMKR | Restricted Stock Units | Common Stock (2,630) | $0.00 | — | 2,630 | Disposed |
| Dec. 19, 2023 | AMKR | Restricted Stock Units | Common Stock (78) | — | — | 78 | Disposed |
| Dec. 19, 2023 | AMKR | Restricted Stock Units | Common Stock (88) | — | — | 88 | Disposed |
| Dec. 19, 2023 | AMKR | Restricted Stock Units | Common Stock (93) | — | — | 93 | Disposed |
| Feb. 24, 2023 | AMKR | Restricted Stock Units | Common Stock (2,599) | — | — | 2,599 | Disposed |
| Feb. 16, 2023 | AMKR | Restricted Stock Units | Common Stock (9,279) | — | — | 9,279 | Acquired |
| Feb. 10, 2023 | AMKR | Restricted Stock Units | Common Stock (2,630) | $0.00 | — | 2,630 | Disposed |
| Dec. 19, 2022 | AMKR | Restricted Stock Units | Common Stock (88) | — | — | 88 | Disposed |
| Dec. 19, 2022 | AMKR | Restricted Stock Units | Common Stock (93) | — | — | 93 | Disposed |
| Feb. 15, 2019 | AMKR | Employee Stock Option (Right-to-Buy) | Amkor Technology, Inc., Common Stock (250,000) | $9.48 | Feb. 15, 2029 | 250,000 | Acquired |
| Feb. 27, 2017 | AMKR | Employee Stock Option (Right-to-Buy) | Amkor Technology, Inc., Common Stock (200,000) | $9.86 | Feb. 27, 2027 | 200,000 | Acquired |
| Sept. 9, 2014 | AMKR | Employee Stock Option (Right to Buy) | Amkor Technology, Inc. Common Stock (60,000) | $5.31 | Nov. 12, 2014 | 60,000 | Disposed |
| April 1, 2009 | AMKR | 6.00 % Convertible Senior Subordinated Notes Due 2014 | Amkor Technology, Inc. Common Stock (49,594,980) | — | April 15, 2014 | — | Acquired |
| Feb. 19, 2008 | AMKR | Employee Stock Option (right to buy) | Amkor Techonolgy, Inc. (250,000) | $11.29 | Feb. 19, 2018 | 250,000 | Acquired |
| Aug. 9, 2007 | AMKR | 6.25% Convertible Subordinated Notes | Common Stock | — | Dec. 1, 2013 | — | Acquired |
| March 28, 2007 | AMKR | Employee Stock Option (Right to Buy) | Amkor Technology, Inc. Common Stock (250,000) | $10.79 | April 4, 2007 | 250,000 | Disposed |
| Feb. 13, 2006 | AMKR | Non-Qualified Stock Option (Right to Buy) | Amkor Technology, Inc. Common Stock (95,000) | $7.00 | Feb. 13, 2016 | 95,000 | Acquired |
| Nov. 12, 2004 | AMKR | Options to Purchase Common Stock (Right to Buy) | Amkor Technology, Inc. Common Stock (60,000) | $5.31 | Nov. 12, 2014 | 60,000 | Acquired |
| June 16, 2003 | AMKR | Employee Stock Option (Right To Buy) | Amkor Technology, Inc. Common Stock (250,000) | $10.79 | April 4, 2007 | 250,000 | Acquired |
| June 16, 2003 | AMKR | Employee Stock Option (Right to Buy) | Amkor Technology, Inc. Common Stock (250,000) | $10.79 | July 19, 2006 | 250,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.