Amkor Technology (AMKR) director Susan Kim exercises options, holds 6.1M shares
Filing Impact
Filing Sentiment
Form Type
4
Rhea-AI Filing Summary
Amkor Technology director and 10% owner Susan Y. Kim exercised options to acquire 20,000 shares of Common Stock. She exercised a director stock option for 20,000 shares at an exercise price of $5.66 per share, a grant originally issued on May 4, 2016 that vested on May 2, 2017.
Following the exercise, she directly holds 6,110,494 shares of Amkor Common Stock. The filing also lists substantial additional indirect holdings through various grantor retained annuity trusts, other family trusts, and limited partnerships including Sujochil, LP and Sujoda Investments, LP, in which she is a trustee, general partner, or LLC member.
The report notes that she is treated as having a pecuniary interest in these indirect holdings for reporting purposes but expressly disclaims beneficial ownership beyond her actual economic interest.
Positive
- None.
Negative
- None.
Insider Trade Summary
20,000 shares exercised/converted
Mixed
10 txns
Insider
KIM SUSAN Y
Role
Director, 10% Owner
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Director stock option (right to buy) | 20,000 | $0.00 | -- |
| Exercise | Common Stock | 20,000 | $5.66 | $113K |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
Holdings After Transaction:
Director stock option (right to buy) — 0 shares (Direct);
Common Stock — 6,110,494 shares (Direct);
Common Stock — 3,244,594 shares (Indirect, 2025 Grantor Retained Annuity Trust No. 1 of James J. Kim)
Footnotes (1)
- The Reporting Person is (i) a trustee of trusts for the benefit of her immediate family members (other than grantor retained annuity trusts ("GRATs")) which own 3,713,610 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer"); (ii) a trustee of GRATs for the benefit of members of her immediate family which own 7,912,594 shares of the Issuer's Common Stock; (iii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,124,000 shares of the Issuer's Common Stock; (iv) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock; and (v) a member of Sujoda Management, LLC, which indirectly owns 3,789,479 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. 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. The sole general partner of Sujoda Investments, LP is Sujoda Management, LLC. The Reporting Person is one of three members of Sujoda Management, LLC. Sujoda Management, LLC is being treated as a limited partnership for purposes of Section 16, and pursuant to the Form 4 instructions, the Reporting Person has elected to treat all of the shares of the Issuer's Common Stock owned by Sujoda Investments, LP as beneficially owned by the Reporting Person. This stock option to acquire 20,000 shares of the Issuer's Common Stock was granted on May 4, 2016 and vested in full on May 2, 2017.
Key Figures
Options exercised: 20,000 shares
Exercise price: $5.66 per share
Direct holdings after transaction: 6,110,494 shares
+5 more
8 metrics
Options exercised
20,000 shares
Director stock option exercised on April 7, 2026
Exercise price
$5.66 per share
Director stock option for 20,000 shares
Direct holdings after transaction
6,110,494 shares
Common Stock directly owned following option exercise
Trust holdings (non-GRATs)
3,713,610 shares
Shares held by trusts for immediate family members
Family GRAT holdings
7,912,594 shares
GRATs for benefit of immediate family members
Personal GRAT holdings
1,124,000 shares
GRATs where Susan Y. Kim is settlor and sole annuitant
Sujochil, LP holdings
19,484,809 shares
Shares owned by Sujochil, LP where she is general partner
Sujoda Investments, LP holdings
3,789,479 shares
Shares owned by Sujoda Investments, LP
Key Terms
grantor retained annuity trusts ("GRATs"), pecuniary interest, beneficial ownership, Section 16, +2 more
6 terms
grantor retained annuity trusts ("GRATs") financial
"trusts for the benefit of her immediate family members (other than grantor retained annuity trusts ("GRATs")) which own 3,713,610 shares"
pecuniary interest financial
"Pursuant to the Form 4 instructions, the Reporting Person is being treated as having a pecuniary interest in all of such shares."
beneficial ownership financial
"The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein"
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, as amended ("Section 16"), or for any other purpose."
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.
Form 4 regulatory
"Pursuant to the Form 4 instructions, the Reporting Person is being treated as having a pecuniary interest in all of such shares."
Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.
annuitant financial
"GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,124,000 shares"
FAQ
What did Amkor (AMKR) director Susan Y. Kim report on this Form 4?
Susan Y. Kim reported exercising a director stock option for 20,000 Amkor shares at an exercise price of $5.66 per share. The filing updates her direct and indirect ownership, reflecting her role as a significant shareholder and member of a 10% owner group.
At what price were Susan Y. Kim's Amkor stock options exercised?
The director stock option was exercised at an exercise price of $5.66 per share for 20,000 shares of Amkor Common Stock. This option was granted on May 4, 2016 and had fully vested by May 2, 2017, before being exercised on April 7, 2026.
How does the Form 4 describe Susan Y. Kim’s interest in indirect Amkor holdings?
The filing states she is treated as having a pecuniary interest in all shares held by specified trusts, GRATs, and partnerships for reporting purposes. However, she expressly disclaims beneficial ownership of these securities beyond the extent of her actual pecuniary interest under Section 16.