Calamos Advisors LLC - PROTO LABS INC ownership

PROTO LABS INC's ticker is PRLB and the CUSIP is 743713109. A total of 177 filers reported holding PROTO LABS INC in Q1 2014. The put-call ratio across all filers is 1.44 and the average weighting 0.2%.

Quarter-by-quarter ownership
Calamos Advisors LLC ownership history of PROTO LABS INC
ValueSharesWeighting
Q4 2014$13,852,000
-3.1%
206,259
-0.4%
0.09%
-3.2%
Q3 2014$14,290,000
-27.9%
207,106
-14.4%
0.10%
-24.6%
Q2 2014$19,816,000
+12.3%
241,897
-7.2%
0.13%
+11.5%
Q1 2014$17,640,000
-1.6%
260,680
+3.5%
0.11%
-0.9%
Q4 2013$17,923,000
+4744.1%
251,795
+5102.4%
0.11%
+5600.0%
Q3 2013$370,000
-74.3%
4,840
-78.2%
0.00%
-77.8%
Q2 2013$1,442,00022,1950.01%
Other shareholders
PROTO LABS INC shareholders Q1 2014
NameSharesValueWeighting ↓
S Squared Technology, LLC 251,803$6,647,5993.59%
Meros Investment Management, LP 85,569$2,259,0221.23%
DISCIPLINED GROWTH INVESTORS INC /MN 1,764,397$46,580,0811.11%
GAGNON SECURITIES LLC 90,290$2,383,6560.60%
AIMZ Investment Advisors, LLC 47,699$1,259,2540.56%
HighMark Wealth Management LLC 9,945$262,5480.22%
Counterpoint Mutual Funds LLC 8,478$223,8190.19%
ALGERT GLOBAL LLC 85,125$2,2470.11%
GSA CAPITAL PARTNERS LLP 42,820$1,1300.10%
CAXTON ASSOCIATES LP 22,220$586,6080.08%
View complete list of PROTO LABS INC shareholders