Aperio Group, LLC - PROTO LABS INC ownership

PROTO LABS INC's ticker is PRLB and the CUSIP is 743713109. A total of 196 filers reported holding PROTO LABS INC in Q3 2015. The put-call ratio across all filers is 2.43 and the average weighting 0.3%.

Quarter-by-quarter ownership
Aperio Group, LLC ownership history of PROTO LABS INC
ValueSharesWeighting
Q4 2020$1,374,000
+16.4%
8,956
-1.7%
0.00%0.0%
Q3 2020$1,180,000
+15.6%
9,109
+0.4%
0.00%0.0%
Q2 2020$1,021,000
+51.0%
9,076
+2.3%
0.00%
+33.3%
Q1 2020$676,000
-19.9%
8,876
+6.8%
0.00%0.0%
Q4 2019$844,000
-5.4%
8,314
-4.8%
0.00%
-25.0%
Q3 2019$892,000
-15.8%
8,737
-4.3%
0.00%0.0%
Q2 2019$1,060,000
+5.3%
9,134
-4.6%
0.00%0.0%
Q1 2019$1,007,000
-4.3%
9,576
+2.7%
0.00%
-20.0%
Q4 2018$1,052,000
-33.8%
9,324
-5.2%
0.01%
-28.6%
Q3 2018$1,590,000
+42.6%
9,831
+4.8%
0.01%
+40.0%
Q2 2018$1,115,000
+11.3%
9,377
+10.0%
0.01%0.0%
Q1 2018$1,002,000
+20.1%
8,527
+5.3%
0.01%
+25.0%
Q4 2017$834,000
+40.4%
8,097
+9.4%
0.00%
+33.3%
Q3 2017$594,000
+28.3%
7,402
+7.6%
0.00%0.0%
Q2 2017$463,000
+78.1%
6,882
+35.3%
0.00%
+50.0%
Q1 2017$260,000
-4.4%
5,087
-4.1%
0.00%0.0%
Q4 2016$272,000
+27.7%
5,306
+49.5%
0.00%0.0%
Q3 2016$213,000
-21.7%
3,550
+0.5%
0.00%0.0%
Q1 2016$272,000
+19.8%
3,531
-0.8%
0.00%0.0%
Q4 2015$227,000
+8.1%
3,558
+13.5%
0.00%0.0%
Q3 2015$210,000
+2.9%
3,134
+3.4%
0.00%0.0%
Q2 2015$204,000
+1.0%
3,030
+4.9%
0.00%0.0%
Q1 2015$202,000
-4.7%
2,889
-8.6%
0.00%
-33.3%
Q4 2014$212,000
+4.4%
3,161
+7.2%
0.00%0.0%
Q3 2014$203,000
-9.4%
2,949
+7.6%
0.00%0.0%
Q2 2014$224,0002,7400.00%
Other shareholders
PROTO LABS INC shareholders Q3 2015
NameSharesValueWeighting ↓
Brown Capital Management 3,056,893$372,177,0002.77%
PREMIER ASSET MANAGEMENT LLC 67,800$8,255,0001.47%
Nikko Asset Management Americas, Inc. 1,976,509$240,640,0001.18%
Capital Investment Services of America, Inc. 92,843$11,304,0001.16%
GAGNON SECURITIES LLC 58,485$7,121,0001.08%
DISCIPLINED GROWTH INVESTORS INC /MN 398,710$48,543,0000.98%
BENDER ROBERT & ASSOCIATES 24,260$2,954,0000.95%
ARK Investment Management 3,654,854$444,978,0000.88%
RIVERBRIDGE PARTNERS LLC 625,607$76,168,0000.87%
Pembroke Management, LTD 69,123$8,416,0000.70%
View complete list of PROTO LABS INC shareholders