Proto Labs Inc (PRLB)
Industrials
Metal Fabrication
75.10 $
-0.1%
vs. previous close
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. 99.2% 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%
Insiders
Share of the stock held by the executives, founders and major shareholders of the company itself.
1.3%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
99.2%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
3.9%
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 |
| 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 |
| American Capital Management Inc | 2.64 | 627,705 | -0.6 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 6.09 | 1,448,906 | +0.0 | 07/30/2026 |
| Vanguard Morn Total Stk Mkt Idx Investor | 3.18 | 757,243 | +0.6 | 06/30/2026 |
| iShares Russell 2000 ETF | 2.63 | 626,683 | -0.1 | 07/30/2026 |
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.