Proto Labs Inc

PRLB · US

Held by 1 big investorsLargest: ARK

Proto Labs Inc is held by 1 of the 24 tracked investors in their latest 13F filings. The largest position is ARK Investment Management's at $2.9M, 0.02% of that portfolio.

Big investors holding this stock

Latest 13F of the 24 tracked investors. Common shares only.

InvestorValue ($)WeightRank in portfoliovs prior quarter
ARK Investment Management
Cathie Wood's firm · Q2 2026weight 0.02% · Q2 2026
2.9M0.02%#125▼ 23%

Questions

Which big investors own Proto Labs Inc?

ARK Investment Management ($2.9M), per their latest 13F filings.

Does Warren Buffett own Proto Labs Inc?

Berkshire Hathaway did not report it in its latest 13F.

Does Korea's National Pension Service own Proto Labs Inc?

Not in its latest 13F.

Restated and computed from SEC (13F, 13D/G, Form 4) and DART filings and NPS public data. Filings describe a past date and may differ from current holdings (13F: quarter end, up to 45 days later). Not investment advice.
Sources: SEC EDGAR, DART, data.go.kr (NPS), OpenFIGI. See Methodology for how figures are computed.