FORTALEZA ASSET MANAGEMENT INC/ - PROTO LABS INC ownership

PROTO LABS INC's ticker is PRLB and the CUSIP is 743713109. A total of 187 filers reported holding PROTO LABS INC in Q3 2014. The put-call ratio across all filers is 0.75 and the average weighting 0.2%.

Quarter-by-quarter ownership
FORTALEZA ASSET MANAGEMENT INC/ ownership history of PROTO LABS INC
ValueSharesWeighting
Q3 2016$6,590,000
+7745.2%
110
-92.4%
0.01%
-87.0%
Q2 2016$84,000
-72.3%
1,455
-67.7%
0.07%
-50.0%
Q4 2014$303,000
-10.4%
4,510
-7.9%
0.14%
-13.2%
Q3 2014$338,0004,8950.16%
Other shareholders
PROTO LABS INC shareholders Q3 2014
NameSharesValueWeighting ↓
Abdiel Capital Advisors 923,508$55,327,00016.27%
Quantum Capital Management, LLC / NJ 271,772$16,282,0005.14%
Crestwood Capital Management, L.P. 275,600$16,511,0004.87%
Brown Capital Management 3,012,802$180,497,0002.65%
RIVERBRIDGE PARTNERS LLC 1,902,885$114,002,0002.28%
Conestoga Capital Advisors, LLC 536,946$32,168,0002.20%
Capital Investment Services of America, Inc. 174,257$10,440,0001.99%
BENDER ROBERT & ASSOCIATES 41,905$2,511,0001.66%
Redmond Asset Management, LLC 43,532$2,608,0001.28%
Stephens Investment Management Group LLC 578,329$34,648,0001.03%
View complete list of PROTO LABS INC shareholders