AlphaMark Advisors, LLC - PROTO LABS INC ownership

PROTO LABS INC's ticker is PRLB and the CUSIP is 743713109. A total of 173 filers reported holding PROTO LABS INC in Q2 2013. The put-call ratio across all filers is 1.31 and the average weighting 0.8%.

Quarter-by-quarter ownership
AlphaMark Advisors, LLC ownership history of PROTO LABS INC
ValueSharesWeighting
Q3 2013$23,000
+21.1%
3000.0%0.02%
+25.0%
Q2 2013$19,0003000.01%
Other shareholders
PROTO LABS INC shareholders Q2 2013
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