AMKR Form 144: Insider sale of 5,000 shares planned

AMKR filed a Form 144 reporting proposed and recent insider sales.

Accepted by SEC EDGAR 05/18/2026 - 04:19 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

AMKR filed a Form 144 reporting proposed and recent insider sales. The filing lists a proposed sale of 5,000 shares via stock option exercise on 05/18/2026 and discloses two prior sales of 5,000 shares each on 04/16/2026 and 03/16/2026 with reported proceeds.

Key Figures

Proposed sale: 5,000 shares Associated value (line item): $358,150.00 Prior sale 1 proceeds: $297,150.00 +2 more

5 metrics

Proposed sale 5,000 shares proposed sale via stock option exercise on 05/18/2026

Associated value (line item) $358,150.00 value shown with 5,000-share line dated 05/18/2026

Prior sale 1 proceeds $297,150.00 sale of 5,000 shares on 04/16/2026

Prior sale 2 proceeds $222,700.00 sale of 5,000 shares on 03/16/2026

Broker-dealer Morgan Stanley Smith Barney LLC listed for the proposed transaction

Key Terms

Stock Option Exercise, Form 144, Issuer

3 terms

Stock Option Exercise financial

"Securities To Be Sold entry labeled "Stock Option Exercise" (05/18/2026)"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Form 144 regulatory

"Document header and context identifying this filing as a Form 144 notice"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Issuer financial

"Securities To Be Sold line shows "ISSUER" as recipient type for the exercise"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does AMKR's Form 144 disclose about the pending sale?

The Form 144 shows a proposed sale of 5,000 shares on 05/18/2026 labeled as a stock option exercise. The filing lists the transaction method as cash and identifies the broker-dealer as Morgan Stanley Smith Barney LLC.

Who is the reporting person on the AMKR Form 144 and what recent sales are listed?

The filing names Mark N. Rogers and shows two prior reported sales of 5,000 shares on 04/16/2026 and 03/16/2026, with reported proceeds of $297,150 and $222,700 respectively.

How much cash is associated with the proposed 05/18/2026 sale in AMKR's Form 144?

The excerpt includes a value of $358,150.00 associated with a 5,000-share line tied to 05/18/2026. The filing shows the sale method as a stock option exercise and settlement in cash.

Which broker-dealer is listed for the transactions on the AMKR Form 144?

The Form 144 lists Morgan Stanley Smith Barney LLC at 1 New York Plaza as the broker-dealer. The entry appears alongside the planned sale of 5,000 shares and the specified settlement method of cash.

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

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001201997
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	AMKOR TECHNOLOGY, INC.
SEC File Number	000-29472
Address of Issuer	2045 East Innovation Circle Tempe ARIZONA 85284
Phone	(480) 821-5000
Name of Person for Whose Account the Securities are To Be Sold	MARK N ROGERS
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	5000	358150.00	247872518	05/18/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	05/18/2026	Stock Option Exercise	ISSUER			5000	05/18/2026	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
MARK N ROGERS 2045 East Innovation Circle Tempe AZ 85284	Common	04/16/2026	5000	297150.00
MARK N ROGERS 2045 East Innovation Circle Tempe AZ 85284	Common	03/16/2026	5000	222700.00

144: Remarks and Signature

Remarks
Date of Notice	05/18/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	08/01/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Mark N. Rogers
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)