PRLB — PROTO LABS INC COM

Ownership history in DRIEHAUS CAPITAL MANAGEMENT LLC  ·  8 quarters on record

This page tracks every 13F SEC filing in which DRIEHAUS CAPITAL MANAGEMENT LLC reported a position in PROTO LABS INC COM (PRLB). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
0.36% (2013 Q3)
Avg. % of fund
0.24%
First filed
2012 Q1
Last filed
2025 Q4
Quarters held
8
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 ADDED 382,155 +261,332 +216.3% 0.13% $19.3M $50.59
2013 Q3 ADDED 120,823 +4,900 +4.2% 0.36% $9.2M $76.39
2013 Q2 REDUCED 115,923 -10,291 -8.2% 0.33% $7.5M $64.97
2013 Q1 ADDED 126,214 +30,754 +32.2% 0.28% $6.2M $49.10
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% of Fund (quarterly)    PRLB price (monthly, adj. close)

Other funds also holding PRLB

As of 2025 Q4 — sorted by position size

S Squared Technology, LLC 3Y 7Y 6.0% DISCIPLINED GROWTH INVESTORS INC /MN 3Y 7Y 2.59% AMERICAN CAPITAL MANAGEMENT INC 3Y 7Y 1.41% GAGNON SECURITIES LLC 3Y 7Y 1.15% Rubric Capital Management LP 3Y 7Y 0.68% AIMZ Investment Advisors, LLC 3Y 7Y 0.57% RICE HALL JAMES & ASSOCIATES, LLC 3Y 7Y 0.32% Hillsdale Investment Management Inc. 3Y 7Y 0.23% Jackson Creek Investment Advisors LLC 3Y 0.13% BRIDGEWAY CAPITAL MANAGEMENT, LLC 3Y 7Y 0.12%
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