Notice of Proposed Sale · 144
Amkor Technology, Inc.
AMKRNASDAQEQUITYCurrent
Notice of Proposed Sale
Structured filing — 144
primary_doc.xml
Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.
Proposed-sale notice
- Issuer
- AMKOR TECHNOLOGY, INC.
- Issuer CIK
- 0001047127
- SEC file number
- 000-29472
- Phone
- (480) 821-5000
- Person for whose account securities are to be sold
- DOUGLAS A ALEXANDER
- Relationships to issuer
- Director
- Street
- 2045 East Innovation Circle
- City
- Tempe
- State / country code
- AZ
- Postal code
- 85284
Securities proposed for sale
| Security | Proposed units | Aggregate market value | Units outstanding | Approximate sale date | Exchange | Broker / market maker |
|---|---|---|---|---|---|---|
| Common | 5,000 | 275,000.00 | 248,452,472 | 10/02/2026 | NASDAQ | Morgan Stanley Smith Barney LLC Executive Financial Services |
Broker / market maker — proposed row 1, entry 1
- Name
- Morgan Stanley Smith Barney LLC Executive Financial Services
- Street
- 1 New York Plaza
- Street (continued)
- 8th Floor
- City
- New York
- State / country code
- NY
- Postal code
- 10004
Acquisition of securities to be sold
| Security | Acquired | Nature of acquisition | Acquired from | Amount acquired | Gift transaction | Payment date | Nature of payment |
|---|---|---|---|---|---|---|---|
| Common | 10/02/2026 | Stock Option Exercise | Issuer | 5,000 | N | 10/02/2026 | Cash |
Sales reported in the preceding three months
| Seller | Security | Sale date | Amount sold | Gross proceeds |
|---|---|---|---|---|
| DOUGLAS A ALEXANDER | Common | 08/07/2026 | 5,000 | 279,050.00 |
Seller — prior-sale row 1, entry 1
- Name
- DOUGLAS A ALEXANDER
- Street
- 2045 East Innovation Circle
- City
- Tempe
- State / country code
- AZ
- Postal code
- 85284
Prior-sale reporting
- Nothing to report for the preceding three months
- N
Notice signature
- Notice date
- 10/02/2026
- Signed
- /s/ Douglas A. Alexander
- Plan adoption dates
- 05/08/2026
Company context
Amkor Technology, Inc. (Nasdaq: AMKR) is the world’s largest U.S. headquartered OSAT and is a global leader in outsourced semiconductor packaging and test services. With a strong track record of innovation, a broad and diverse geographic footprint and solid partnerships with lead customers, Amkor delivers high-quality solutions that enable the world’s leading semiconductor and electronics companies to bring advanced technologies to market. The company’s comprehensive portfolio includes advanced packaging, wafer-level processing, and system-in-package solutions targeting applications for smartphones, data centers, artificial intelligence, automobiles and wearables. For more information visit amkor.com.