PRLB

Proto Labs Inc

Latest period2026 - Q1Total superinvestors261

The latest quarter's data is still being updated as more institutional investors submit their 13F reports, so the current information might be incomplete.

Top 10 Superinvestors by Shares Owned

This chart shows the top 10 superinvestors based on the number of shares they owned in 2025-Q4 and 2026-Q1. According to the most recent SEC 13F filing, 261 superinvestors own shares of Proto Labs Inc (PRLB), although recent data may remain incomplete due to pending filings.

Quarter-over-Quarter Change (%)

The most recent quarter may show incomplete data because not all institutional investors have filed their 13F reports yet.

This chart highlights the quarter-over-quarter change (%) in the number of superinvestors holding Proto Labs Inc (PRLB), the total shares they held, and the total reported dollar value. It gives a clear view of whether there is ongoing momentum. The dotted lines at the top and bottom adjust longer bars to keep smaller data points visible for better comparison.

Superinvestors' Activity (%) Over the Last 4 Quarters

This chart shows superinvestors' activity with Proto Labs Inc (PRLB) over the last four quarters, highlighting the percentage of investors who added, increased, decreased, held, or exited their positions, revealing shifts in sentiment over time.

Superinvestors' Past Actions

This chart displays superinvestors' past actions with Proto Labs Inc (PRLB) over the last 10 years (40 quarters), helping to visualize the collective momentum and investment trends over time.

Superinvestors ownership

Superinvestor	Portfolio %	Reported Value	Recent Activity
Spencer Fleming@Blackrock, Inc. Recent Activity Increased 1.63%	0.01%	$209.712M 3.678M shares@ 57.02 avg price	Increased 1.63%
Peter Rieke@Disciplined Growth Investors Inc Mn Recent Activity Decreased -6.59%	2.92%	$142.399M 2.497M shares@ 57.02 avg price	Decreased -6.59%
Christine M. Buchanan@Vanguard Portfolio Management Llc Recent Activity New Position	0.01%	$87.727M 1.539M shares@ 57.03 avg price	New Position
Selwyn Notelovitz@Dimensional Fund Advisors Lp Recent Activity Decreased -0.32%	0.02%	$72.548M 1.272M shares@ 57.02 avg price	Decreased -0.32%
ELIZABETH SCHAEFER@State Street Corp Recent Activity Increased 0.35%	0.01%	$62.266M 1.092M shares@ 57.02 avg price	Increased 0.35%
Christine M. Buchanan@Vanguard Capital Management Llc Recent Activity New Position	0.01%	$59.286M 1.04M shares@ 57.03 avg price	New Position
Michael Meagher@American Capital Management Inc Recent Activity Decreased -0.57%	1.93%	$35.792M 627,705 shares@ 57.02 avg price	Decreased -0.57%
Laura Doherty@Geode Capital Management, Llc Recent Activity Increased 3.93%	0.01%	$33.09M 580,201 shares@ 57.04 avg price	Increased 3.93%
Tiffany Michel@Renaissance Technologies Llc Recent Activity Increased 5.41%	0.05%	$29.665M 520,251 shares@ 57.02 avg price	Increased 5.41%
Michael Nachmani@Rubric Capital Management Lp Recent Activity Decreased -56.7%	0.3%	$27.735M 486,400 shares@ 57.02 avg price	Decreased -56.7%

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