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
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Brown Capital Management | 3,056,893 | $372,177,000 | 2.77% |
| PREMIER ASSET MANAGEMENT LLC | 67,800 | $8,255,000 | 1.47% |
| Nikko Asset Management Americas, Inc. | 1,976,509 | $240,640,000 | 1.18% |
| Capital Investment Services of America, Inc. | 92,843 | $11,304,000 | 1.16% |
| GAGNON SECURITIES LLC | 58,485 | $7,121,000 | 1.08% |
| DISCIPLINED GROWTH INVESTORS INC /MN | 398,710 | $48,543,000 | 0.98% |
| BENDER ROBERT & ASSOCIATES | 24,260 | $2,954,000 | 0.95% |
| ARK Investment Management | 3,654,854 | $444,978,000 | 0.88% |
| RIVERBRIDGE PARTNERS LLC | 625,607 | $76,168,000 | 0.87% |
| Pembroke Management, LTD | 69,123 | $8,416,000 | 0.70% |