915 Investments, LP - 12 Feb 2026 Form 4 Insider Report for AMKOR TECHNOLOGY, INC. (AMKR)

Reporting relationship: Member of 10% owner group (2)
Issuer ticker: AMKR
Reported as of: 12 Feb 2026
Net transaction value: -$484,900,000
SEC form: 4
Accepted by SEC: 17 Feb 2026, 16:19:10 UTC
Prior SEC filing: 08 Sep 2023
Source filing: View source filing
Reporting owner signature: /s/ Brian D. Short, Attorney-in-Fact for 915 Investments, LP

Key filing fact

915 Investments, LP filed Form 4 for AMKOR TECHNOLOGY, INC. (AMKR) on 17 Feb 2026.

Key facts

This page summarizes 915 Investments, LP's Form 4 filing for AMKOR TECHNOLOGY, INC. (AMKR).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 17 Feb 2026, 16:19.

Change

Previous filing in this sequence was filed on 08 Sep 2023.
Current net transaction value: -$484,900,000.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001460579 Primary reporting owner

915 Investments, LP

Relationship: Member of 10% owner group (2)
Address: C/O SIANA CARR O'CONNOR & LYNAM, 1500 EAST LANCASTER AVENUE, PAOLI
Signature: /s/ Brian D. Short, Attorney-in-Fact for 915 Investments, LP
Signature date: 17 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

AMKR transaction

Common Stock

Sale

Transaction value: $484,900,000
Shares: -10,000,000
Change %: -25%
Price: $48.49
Shares after: 29,594,980
Date: 12 Feb 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

On February 12, 2026, the Reporting Person sold 10,000,000 shares of Common Stock of Amkor Technology, Inc. pursuant to an underwritten secondary offering. John T. Kim is the general partner of the Reporting Person.

SEC remarks

(2) The Reporting Person states that the filing of this Form 4 shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities owned by the other members of the group, for the purpose of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.