AMKR · Amkor Technology· Filed February 13, 2026medium

Amkor — Other Material Event Disclosure with Exhibits

Original: 8-K: Other Material Events · Financial Statements and Exhibits

Summary

Filing under Item 8.01 signals a non-routine corporate development Amkor deemed material outside standard 8-K triggers, with supporting exhibits attached under Item 9.01. Full filing body not analyzed; description inferred from form + item codes. PMs should review the underlying exhibit to gauge relevance to OSAT capacity, customer wins, or financing actions ahead of the next print.

Historical Impact

8 past 8-K events at Amkor Technology

Median +5d

+3.92%

Range

-10.81% to +8.96%

Positive outcomes

5/8

Filed	P₀	P₊₅	+5d
May 21, 2026	$66	$69	+4.23%
May 19, 2026	$66	$71	+8.33%

Full Translation

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