STOCK TITAN

Spouse of Amkor Technology (AMKR) insider exercises 200,000 and 250,000 options

(Very High)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Amkor Technology, Inc. reporting person Agnes C. Kim reported that on July 20, 2026, her spouse exercised stock options to acquire 200,000 and 250,000 shares of Amkor common stock at exercise prices of $9.86 and $9.48 per share, respectively. These shares are held indirectly through her spouse, and she disclaims beneficial ownership except for any pecuniary interest. After these transactions, she reports holding 0 shares of Amkor common stock directly.

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Insider KIM AGNES C
Role Insider
Type Security Shares Price Value
Exercise Common Stock F1, F2 200,000 $9.86 $1.97M
Exercise Common Stock F3, F2 250,000 $9.48 $2.37M
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 11,187,355 shares (Indirect, By Spouse); Common Stock — 0 shares (Direct)
Footnotes (3)
  1. F1. On July 20, 2026, the Reporting Person's spouse exercised a stock option to acquire 200,000 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer") that was granted to the Reporting Person's spouse on February 27, 2017.
  2. 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.
  3. F3. On July 20, 2026, the Reporting Person's spouse exercised a stock option to acquire 250,000 shares of the Issuer's Common Stock that was granted to the Reporting Person's spouse on February 15, 2019.
Shares acquired via option exercise 200,000 shares Spouse exercised a stock option on July 20, 2026 to acquire 200,000 Amkor common shares
Additional shares acquired via option exercise 250,000 shares Spouse exercised a second stock option on July 20, 2026 to acquire 250,000 Amkor common shares
Exercise price per share (200,000-share option) $9.86 per share Exercise price for the 200,000-share stock option exercised on July 20, 2026
Exercise price per share (250,000-share option) $9.48 per share Exercise price for the 250,000-share stock option exercised on July 20, 2026
Direct common shares held after transactions 0 shares Direct ownership of Amkor common stock reported after the July 20, 2026 transactions
stock option financial
"the Reporting Person's spouse exercised a stock option to acquire 200,000 shares"
A stock option is a contract that gives you the right to buy or sell a company's stock at a specific price within a certain time frame. People use them to potentially make money if the stock's price moves favorably or to protect against losses. It's like holding a coupon that can be used to buy or sell stock at a set price later on.
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.
pecuniary interest financial
"except to the extent of the Reporting Person's pecuniary interest therein"
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.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What insider transaction did Agnes C. Kim report for AMKR?

Agnes C. Kim reported that her spouse exercised stock options to acquire 200,000 and 250,000 Amkor common shares on July 20, 2026, at exercise prices of $9.86 and $9.48 per share, respectively, creating additional indirect holdings through her spouse.

How are the new AMKR shares from the July 20, 2026 transactions held?

The newly acquired Amkor shares are reported as indirectly owned, described as held “By Spouse”. Agnes C. Kim’s spouse exercised the stock options, and the filing attributes the ownership to her indirectly, rather than as directly held shares in her own name.

Does Agnes C. Kim claim full beneficial ownership of the AMKR shares?

No. The filing states that she disclaims beneficial ownership of the indirectly held shares, except to the extent of her pecuniary interest. It also clarifies that this should not be considered an admission of beneficial ownership for Section 16 or other purposes.

How many AMKR shares does Agnes C. Kim report holding directly after these transactions?

After the reported July 20, 2026 transactions, Agnes C. Kim reports holding 0 shares of Amkor common stock directly. The reported positions relate to shares held indirectly through her spouse, rather than common stock registered as directly owned by her.

Were the AMKR option exercises reported by Agnes C. Kim under a Rule 10b5-1 plan?

The filing’s Rule 10b5-1 checkbox is not marked as affirming that these transactions were made under a Rule 10b5-1 trading plan. No footnote describes them as pursuant to a pre-arranged trading plan in the provided disclosure.

What is Agnes C. Kim’s status in relation to AMKR ownership?

Agnes C. Kim is identified as a “Member of 10% owner group” in the report. This indicates association with a group owning at least 10% of Amkor, while the filing focuses specifically on indirect holdings through her spouse’s option exercises.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
KIM AGNES C

(Last)(First)(Middle)
C/O SIANA CARR O'CONNOR & LYNAM
1500 EAST LANCASTER AVENUE

(Street)
PAOLI PENNSYLVANIA 19301-9713

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
AMKOR TECHNOLOGY, INC. [ AMKR ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
Officer (give title below)XOther (specify below)
Member of 10% owner group (4)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/20/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock07/20/2026M200,000(1)A$9.8610,937,355(2)IBy Spouse
Common Stock07/20/2026M250,000(3)A$9.4811,187,355(2)IBy Spouse
Common Stock0D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. On July 20, 2026, the Reporting Person's spouse exercised a stock option to acquire 200,000 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer") that was granted to the Reporting Person's spouse on February 27, 2017.
2. 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.
3. On July 20, 2026, the Reporting Person's spouse exercised a stock option to acquire 250,000 shares of the Issuer's Common Stock that was granted to the Reporting Person's spouse on February 15, 2019.
Remarks:
(4) 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, or for any other purpose.
/s/ Brian D. Short, Attorney-in-Fact for Agnes C. Kim07/22/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)