OBERWEIS ASSET MANAGEMENT INC/

Holdings History for VICOR CORP - Common Stock, par value $0.01 per share (VICR)

Symbol: VICR on Nasdaq
Investment type: Equity / Common Stock, par value $0.01 per share

Shares, Excluding Options vs Price

Value, Excluding Options

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
30 Sep 2019		-0.72%	$0	0	-126,950	-100%	$170.01	Q3 2019
30 Jun 2019	0.72%	-0.48%	$3,942,000	126,950	-85,720	-40%	$31.05	Q2 2019
31 Mar 2019	1.3%	-0.01%	$6,597,000	212,670	-1,190	-0.56%	$31.02	Q1 2019
31 Dec 2018	1.8%	+0.3%	$8,082,000	213,860	+35,660	+20%	$37.79	Q4 2018
30 Sep 2018	1.6%	+0.24%	$8,197,000	178,200	+26,470	+17%	$46.00	Q3 2018
30 Jun 2018	1.7%	+1.4%	$6,608,000	151,730	+128,630	+557%	$43.55	Q2 2018
31 Mar 2018	0.17%	+0.17%	$660,000	23,100	+23,100	NEW	$28.57	Q1 2018

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.