Proto Labs shares owned by Ark Investment Management
Quarter-by-quarter ownership of Proto Labs (PRLB) shares owned by Ark Investment Management
from 13F filings
Historical chart of Ark Investment Management investment in Proto Labs
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All positions including Proto Labs held by Ark Investment Management consolidated in one spreadsheet with up to 7 years of data
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Quarterly reported holdings in Proto Labs by Ark Investment Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2017-09-30 | $16M | 197k | 80.30 |