VICOR CORP

Ticker: VICR CUSIP: 925815102 Class: Common Stock

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

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

Q2 2019

Shares 126,950 Value ($000) $3,942 Avg Close $32.14 Range $27.82 - $38.98

Q1 2019

Shares 212,670 Value ($000) $6,597 Avg Close $36.89 Range $28.76 - $49.27

Q4 2018

Shares 213,860 Value ($000) $8,082 Avg Close $36.53 Range $31.03 - $47.50

Q3 2018

Shares 178,200 Value ($000) $8,197 Avg Close $54.98 Range $43.27 - $64.50

Q2 2018

Shares 151,730 Value ($000) $6,608 Avg Close $38.67 Range $27.10 - $52.05

Q1 2018

Shares 23,100 Value ($000) $660 Avg Close $21.48 Range $16.30 - $29.00

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2019	126,950	$3,942	$32.14	$27.82 - $38.98
Q1 2019	212,670	$6,597	$36.89	$28.76 - $49.27
Q4 2018	213,860	$8,082	$36.53	$31.03 - $47.50
Q3 2018	178,200	$8,197	$54.98	$43.27 - $64.50
Q2 2018	151,730	$6,608	$38.67	$27.10 - $52.05
Q1 2018	23,100	$660	$21.48	$16.30 - $29.00