PROTO LABS INC (PRLB) Institutional Ownership

PRLB is currently held by 4 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $176.81M based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026.

The largest disclosed holder is Disciplined Growth Investors, which reported ownership valued at approximately $142.40M in its March 31, 2026 13F filing. Based on current market prices and the latest disclosed share count, Disciplined Growth Investors's PRLB position is now estimated to be worth approximately $198.71M, representing an estimated gain of +39.55% since the filing period.

Major shareholders tracked on this page include Disciplined Growth Investors, Renaissance Technologies LLC, ARK Invest, and other prominent asset managers. Collectively, these investors account for approximately 100% of the total disclosed value among the investors covered in this analysis.

This page tracks institutional ownership trends, hedge fund exposure, portfolio concentration, historical 13F filings, and estimated holding performance to help investors analyze smart money sentiment toward PROTO LABS INC (PRLB).

Institutional Ownership Trend

Portfolio quarterInstitutional holdersTotal reported valueTotal shares
Q1 20264$176,813,5463,100,904
Q4 20254$163,313,2213,228,172
Q3 20253$160,487,2853,207,821
Q2 20253$133,876,1823,343,561
Q1 20253$115,261,1023,289,415
Q4 20243$112,347,0452,874,061
Q3 20243$80,391,7112,737,205
Q2 20243$77,692,6132,515,138
Q1 20243$73,167,0722,375,702
Q4 20233$74,735,9002,207,583
Q3 20233$51,324,8502,219,947
Q2 20233$68,918,9522,173,080

Related PRLB Institutional Insights: