PRLB

Proto Labs Inc

Fabricated Structural Metal Products · SIC 3440CIK 1443669Held by 4 tracked managersEDGAR filings ↗10-K/10-Q ↗

SHARE:X LINKEDIN EMAIL

4 managers · Q2 2026 13F

13F bookWeight

Renaissance Technologies

Renaissance TechnologiesPosition history →

0.05%

(9.8%)

$38.2M

$72.62B13F book · 2026-06-30

Polen Capital Management

PolenPosition history →

0.02%

(6.9%)

$2.9M

$11.61B13F book · 2026-06-30

ARK Investment Management

ARK Investment ManagementPosition history →

0.02%

(22.5%)

$2.9M

$15.40B13F book · 2026-06-30

Alps Advisors

Alps AdvisorsPosition history →

<0.01%

(26.8%)

$0.8M

$21.33B13F book · 2026-06-30

Weight = position value ÷ the manager's total 13F long-equity value in the same filing — one definition for every row. “1st obs.” marks a position with no earlier stored 13F to compare against — it is not shown as a purchase.