Proto Labs Inc (PRLB)
Industrials
Metal Fabrication
75.10 $
Closing price · As of: 31. Jul 2026
Who owns Proto Labs Inc (PRLB)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 98.7% of the shares are freely tradable; institutional investors hold 94.9%.
Ownership Structure
Institutional ownership
Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
94.9%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
98.7%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
4.1%
Shares Outstanding
Total number of shares issued. Price times share count gives market cap.
24Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 15.46 | 3,677,875 | +1.6 | 03/31/2026 |
| Vanguard Group Inc | 11.21 | 2,666,227 | -2.9 | 12/31/2025 |
| Disciplined Growth Investors Inc | 10.50 | 2,497,355 | -6.6 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 6.47 | 1,538,530 | +0.0 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 5.35 | 1,272,356 | -0.3 | 03/31/2026 |
| State Street Corp | 4.59 | 1,092,000 | +0.3 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.37 | 1,039,741 | +0.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 6.03 | 1,435,183 | +0.0 | 05/29/2026 |
| Vanguard Total Stock Mkt Idx Inv | 3.16 | 751,595 | +0.0 | 04/30/2026 |
| Disciplined Growth - Mid Cap Growth | 2.82 | 670,436 | -10.0 | 03/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.