Amkor Technology insider exercises 450,000 stock options
James J. Kim, a member of Amkor Technology’s 10% owner group, exercised stock options for 450,000 shares of common stock on July 20, 2026, at exercise prices of $9.86 and $9.48.
Accepted by SEC EDGAR
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Form Type
4
Rhea-AI Filing Summary
James J. Kim, a member of Amkor Technology’s 10% owner group, exercised stock options for 450,000 shares of common stock on July 20, 2026, at exercise prices of $9.86 and $9.48. These shares are held alongside substantial indirect family-trust holdings, for which he disclaims beneficial ownership beyond his pecuniary interest.
Insider Trade Summary
450,000 shares exercised/converted
Exercise
4 txns
Insider
KIM JAMES J
Role
10% Owner
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Employee Stock Option (Right-to-Buy) F3 | 200,000 | $0.00 | $0.00 |
| Exercise | Employee Stock Option (Right-to-Buy) F4 | 250,000 | $0.00 | $0.00 |
| Exercise | Common Stock | 200,000 | $9.86 | $1.97M |
| Exercise | Common Stock | 250,000 | $9.48 | $2.37M |
| Holding | Common Stock F1, F2 | -- | -- | -- |
| Holding | Common Stock F1, F2 | -- | -- | -- |
| Holding | Common Stock F1, F2 | -- | -- | -- |
| Holding | Common Stock F1, F2 | -- | -- | -- |
Holdings After Transaction:
Employee Stock Option (Right-to-Buy) — 0 contracts (Direct);
Common Stock — 511,645 shares (Direct);
Common Stock — 725,000 shares (Indirect, Susan Y. Kim 2023 Family Distribution Trust);
Common Stock — 7,828,682 shares (Indirect, By John T. Kim Family Trust U/A dtd. 12/11/12);
Common Stock — 1,957,350 shares (Indirect, By John T. Kim G-S Trust dtd. 12/11/12);
Common Stock — 164,678 shares (Indirect, By self as Trustee of Trust U/A dtd. 12/11/12)
Holdings Before and After:
Employee Stock Option (Right-to-Buy), 450,000 to 0 contracts (Direct);
Common Stock, 61,645 to 511,645 shares (Direct)
Footnotes (4)
- F1. The Reporting Person is (i) a trustee of trusts for the benefit of his immediate family members which own 10,511,032 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer") and (ii) a trustee of a trust which is a controlling member of a limited liability company being treated as a corporation for purposes of Section 16, which limited liability company holds 164,678 shares of the Issuer's Common stock. Pursuant to the Form 4 instructions, the Reporting Person is being treated as having a pecuniary interest in all of such shares.
- F2. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of the Reporting Person's pecuniary interest therein, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended ("Section 16"), or for any other purpose.
- F3. This stock option (the "2017 Option") to acquire 200,000 shares of the Issuer's Common Stock (the "2017 Option Shares") was granted on February 27, 2017 (the "2017 Option Grant Date") and vested over four years as follows: (i) with respect to 25% of the 2017 Option Shares, on the first anniversary of the 2017 Option Grant Date; and (ii) with respect to the remainder of the 2017 Option Shares, in equal quarterly installments thereafter, such that 100% of the 2017 Option vested on the fourth anniversary of the 2017 Option Grant Date.
- F4. This stock option (the "2019 Option") to acquire 250,000 shares of the Issuer's Common Stock (the "2019 Option Shares") was granted on February 15, 2019 (the "2019 Option Grant Date") and vested over four years as follows: (i) with respect to 25% of the 2019 Option Shares, on the first anniversary of the 2019 Option Grant Date; and (ii) with respect to the remainder of the 2019 Option Shares, in equal quarterly installments thereafter, such that 100% of the 2019 Option vested on the fourth anniversary of the 2019 Option Grant Date.
Key Figures
2017 Option exercise: 200000.0000 shares
2019 Option exercise: 250000.0000 shares
Total options exercised: 450000 shares
+2 more
5 metrics
2017 Option exercise
200000.0000 shares
Employee Stock Option exercised on 2026-07-20 at $9.8600 per share
2019 Option exercise
250000.0000 shares
Employee Stock Option exercised on 2026-07-20 at $9.4800 per share
Total options exercised
450000 shares
Aggregate underlying shares from derivative exercises reported
Family trust holdings
10511032 shares
Shares of Common Stock owned by trusts for immediate family members
LLC-related holding
164678 shares
Shares held by limited liability company controlled by a family trust
Key Terms
Employee Stock Option (Right-to-Buy), pecuniary interest, beneficial ownership, Section 16
4 terms
Employee Stock Option (Right-to-Buy) financial
"security_title is listed as Employee Stock Option (Right-to-Buy)"
pecuniary interest financial
"treated as having a pecuniary interest in all of such shares"
beneficial ownership regulatory
"The Reporting Person disclaims beneficial ownership of these securities"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
Section 16 regulatory
"for purposes of Section 16 of the Securities Exchange Act of 1934"
Section 16 is a U.S. securities law rule that governs the trading and disclosure obligations of company insiders — typically officers, directors and large shareholders — to promote transparency and deter unfair profit-taking. It requires insiders to publicly report their stock trades and allows companies or the issuer to reclaim quick, short-term profits from certain insider trades, like a scoreboard and a refund policy that help investors see and limit possible insider advantage.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What insider activity did James J. Kim report for AMKR on July 20, 2026?
James J. Kim reported exercising stock options for 450,000 Amkor common shares on July 20, 2026. The exercises came from 2017 and 2019 option grants, converting them into newly acquired common stock at fixed exercise prices.
What were the exercise prices of the Amkor (AMKR) options James J. Kim exercised?
The options were exercised at $9.8600 and $9.4800 per share. The 2017 option covered 200,000 shares at $9.8600, while the 2019 option covered 250,000 shares at $9.4800, both converting into common stock on July 20, 2026.
What indirect Amkor (AMKR) holdings are reported for James J. Kim’s family trusts?
Family trusts for James J. Kim’s immediate family members hold 10,511,032 Amkor shares, and a related limited liability company holds 164,678 shares. He is treated as having a pecuniary interest but disclaims beneficial ownership beyond that interest.
Was James J. Kim’s July 20, 2026 Amkor (AMKR) transaction under a Rule 10b5-1 plan?
The filing’s Rule 10b5-1 checkbox is not marked as a plan transaction. No footnote states that the July 20, 2026 option exercises were executed pursuant to a Rule 10b5-1 or other pre-arranged trading plan.
Does James J. Kim claim full beneficial ownership of his indirect Amkor (AMKR) holdings?
No. He disclaims beneficial ownership of the indirectly held Amkor shares except to the extent of his pecuniary interest. The shares are primarily held through family trusts and a limited liability company for which he serves in trustee-related roles.
AI-generated analysis. How Rhea-AI works. Not financial advice.
