AMKOR TECHNOLOGY INC

Ticker: AMKR CUSIP: 031652100 Class: Common Stock

OBERWEIS ASSET MANAGEMENT INC/'s Holding History (CIK: 0000937886)

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

Q1 2021

Shares 9,700 Value ($000) $230 Avg Close $19.14 Range $13.85 - $24.36

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	9,700	$230	$19.14	$13.85 - $24.36