Amkor (AMKR) insider Mark N. Rogers plans $299K stock sale

Rhea-AI Filing Summary

AMKR insider Mark N. Rogers filed a notice to sell 5,000 shares of common stock through Morgan Stanley Smith Barney LLC Executive Financial Services, with an aggregate market value of $298,900.00, in a transaction related to a stock option exercise dated August 17, 2026.

Rogers also reports prior sales of 5,000 shares of common stock on each of May 18, 2026 ($358,150.00), June 16, 2026 ($431,050.00), and July 16, 2026 ($325,600.00).

Key Figures

Planned shares to be sold: 5,000 shares Aggregate market value of planned sale: $298,900.00 Shares sold May 18, 2026: 5,000 shares +3 more

6 metrics

Planned shares to be sold 5,000 shares Common stock related to stock option exercise dated August 17, 2026

Aggregate market value of planned sale $298,900.00 5,000 shares of common stock to be sold through broker

Shares sold May 18, 2026 5,000 shares Common stock sold by Mark N. Rogers on May 18, 2026

Value of May 18, 2026 sale $358,150.00 Aggregate sale value for 5,000 common shares

Value of June 16, 2026 sale $431,050.00 Aggregate sale value for 5,000 common shares

Value of July 16, 2026 sale $325,600.00 Aggregate sale value for 5,000 common shares

Key Terms

Stock Option Exercise, Securities To Be Sold, Securities Sold During The Past 3 Months

3 terms

Stock Option Exercise financial

"Common | 08/17/2026 | Stock Option Exercise | Issuer"

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.

Securities To Be Sold financial

"144: Securities To Be Sold Common | 08/17/2026"

Securities Sold During The Past 3 Months financial

"144: Securities Sold During The Past 3 Months MARK N ROGERS"

FAQ

What does the Form 144 filing by AMKR insider Mark N. Rogers disclose?

The filing discloses that Mark N. Rogers intends to sell 5,000 shares of AMKR common stock with an aggregate market value of $298,900.00, in connection with a stock option exercise dated August 17, 2026.

How many AMKR shares is Mark N. Rogers planning to sell in the new transaction?

Mark N. Rogers plans to sell 5,000 shares of AMKR common stock. These shares are to be sold through Morgan Stanley Smith Barney LLC Executive Financial Services, related to a stock option exercise dated August 17, 2026, with an indicated value of $298,900.00.

What prior AMKR share sales by Mark N. Rogers are reported in this Form 144?

The filing lists three prior sales of 5,000 shares each of AMKR common stock by Mark N. Rogers on May 18, 2026 for $358,150.00, June 16, 2026 for $431,050.00, and July 16, 2026 for $325,600.00.

Which broker is handling the planned AMKR share sale for Mark N. Rogers?

The planned sale is to be handled by Morgan Stanley Smith Barney LLC Executive Financial Services at 1 New York Plaza, 8th Floor, New York, NY 10004, involving 5,000 shares of AMKR common stock with a value of $298,900.00.

What is the nature of the AMKR transaction reported for August 17, 2026?

The transaction dated August 17, 2026 is identified as a Stock Option Exercise involving 5,000 shares of AMKR common stock, with a stated aggregate market value of $298,900.00, and the consideration type indicated as Cash.

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Available on EDGAR 08/17/2026 - 04:13 PM Accepted by SEC EDGAR 08/17/2026 - 04:13 PM Learn about SEC filing dates

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	298900.00	248452472	08/17/2026	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	08/17/2026	Stock Option Exercise	Issuer			5000	08/17/2026	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	07/16/2026	5000	325600.00
MARK N ROGERS 2045 East Innovation Circle Tempe AZ 85284	Common	06/16/2026	5000	431050.00
MARK N ROGERS 2045 East Innovation Circle Tempe AZ 85284	Common	05/18/2026	5000	358150.00

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)