AMKOR TECHNOLOGY INC

Ticker: AMKR CUSIP: 031652100 Class: Common Stock

Channing Capital Management, LLC's Holding History (CIK: 0001302404)

Note: Option positions (PUT/CALL) are excluded.

Q3 2025

Shares 65,941 Value ($000) $1,873 Avg Close $23.96 Range $20.48 - $30.29

Q4 2024

Shares 247,648 Value ($000) $6,362 Avg Close $26.77 Range $23.33 - $30.71

Q3 2024

Shares 250,888 Value ($000) $7,677 Avg Close $32.91 Range $25.69 - $43.32

Q2 2024

Shares 249,945 Value ($000) $10,003 Avg Close $31.93 Range $27.12 - $39.53

Q1 2024

Shares 278,805 Value ($000) $8,989 Avg Close $30.50 Range $27.72 - $35.56

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	65,941	$1,873	$23.96	$20.48 - $30.29
Q4 2024	247,648	$6,362	$26.77	$23.33 - $30.71
Q3 2024	250,888	$7,677	$32.91	$25.69 - $43.32
Q2 2024	249,945	$10,003	$31.93	$27.12 - $39.53
Q1 2024	278,805	$8,989	$30.50	$27.72 - $35.56