ARK Investment Management LLC 13D and 13G filings for Proto Labs, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2021-02-16 4:33 pm Purchase | 2020-12-31 | 13G | Proto Labs, Inc. PRLB | ARK Investment Management LLC | 4,119,922 15.400% | 1,025,887 (+33.16%) | Filing |